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[patch, fortran] Speed up cshift with array shift


Hello world,

the attached patch speeds up the cshift intrinsic with an array
shift. With this patch, the speed of the library version matches
a straigtforward DO loop implementaion pretty closely in speed.
This should be good enough for government work.

Regression-tested. OK for trunk?

Regards

	Thomas

2017-06-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/52473
        * Makefile.am:  Add i_cshift1a_c.  Add rules to generate files
        from cshift1a.m4.
        * Makefile.in: Regenerated.
        * m4/cshift1a.m4: New file.
        * m4/cshift.m4 (cshift1): Split up inner loop by removing
        condition. Use memcpy where possible.  Call helper functions
        based on dtype.
        * libgfortran.h: Add prototypes for cshift1_16_c10,
        cshift1_16_c16, cshift1_16_c4, cshift1_16_c8, cshift1_16_i1,
        cshift1_16_i16, cshift1_16_i2, cshift1_16_i4, cshift1_16_i8,
        cshift1_16_r10, cshift1_16_r16, cshift1_16_r4, cshift1_16_r8,
        cshift1_4_c10, cshift1_4_c16, cshift1_4_c4, cshift1_4_c8,
        cshift1_4_i1, cshift1_4_i16, cshift1_4_i2, cshift1_4_i4,
        cshift1_4_i8, cshift1_4_r10, cshift1_4_r16, cshift1_4_r4,
        cshift1_4_r8, cshift1_8_c10, cshift1_8_c16, cshift1_8_c4,
        cshift1_8_c8, cshift1_8_i1, cshift1_8_i16, cshift1_8_i2,
        cshift1_8_i4, cshift1_8_i8, cshift1_8_r10, cshift1_8_r16,
        cshift1_8_r4 and cshift1_8_r8.
        * generated/cshift1_16_c10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_c16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_c4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_c8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_i1.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_i16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_i2.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_i4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_i8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_r10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_r16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_r4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_16_r8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_c10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_c16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_c4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_c8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_i1.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_i16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_i2.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_i4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_i8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_r10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_r16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_r4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_4_r8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_c10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_c16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_c4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_c8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_i1.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_i16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_i2.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_i4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_i8.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_r10.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_r16.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_r4.c: New file, generated from cshift1a.m4.
        * generated/cshift1_8_r8.c: New file, generated from cshift1a.m4.

2017-06-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/52473
        * gfortran.dg/cshift_2.f90:  New test.
Index: Makefile.am
===================================================================
--- Makefile.am	(Revision 249104)
+++ Makefile.am	(Arbeitskopie)
@@ -524,7 +524,6 @@ $(srcdir)/generated/cshift0_c4.c \
 $(srcdir)/generated/cshift0_c8.c \
 $(srcdir)/generated/cshift0_c10.c \
 $(srcdir)/generated/cshift0_c16.c
- 
 
 i_cshift1_c= \
 $(srcdir)/generated/cshift1_4.c \
@@ -531,6 +530,47 @@ $(srcdir)/generated/cshift1_4.c \
 $(srcdir)/generated/cshift1_8.c \
 $(srcdir)/generated/cshift1_16.c
 
+i_cshift1a_c = \
+$(srcdir)/generated/cshift1_4_i1.c \
+$(srcdir)/generated/cshift1_4_i2.c \
+$(srcdir)/generated/cshift1_4_i4.c \
+$(srcdir)/generated/cshift1_4_i8.c \
+$(srcdir)/generated/cshift1_4_i16.c \
+$(srcdir)/generated/cshift1_4_r4.c \
+$(srcdir)/generated/cshift1_4_r8.c \
+$(srcdir)/generated/cshift1_4_r10.c \
+$(srcdir)/generated/cshift1_4_r16.c \
+$(srcdir)/generated/cshift1_4_c4.c \
+$(srcdir)/generated/cshift1_4_c8.c \
+$(srcdir)/generated/cshift1_4_c10.c \
+$(srcdir)/generated/cshift1_4_c16.c \
+$(srcdir)/generated/cshift1_8_i1.c \
+$(srcdir)/generated/cshift1_8_i2.c \
+$(srcdir)/generated/cshift1_8_i4.c \
+$(srcdir)/generated/cshift1_8_i8.c \
+$(srcdir)/generated/cshift1_8_i16.c \
+$(srcdir)/generated/cshift1_8_r4.c \
+$(srcdir)/generated/cshift1_8_r8.c \
+$(srcdir)/generated/cshift1_8_r10.c \
+$(srcdir)/generated/cshift1_8_r16.c \
+$(srcdir)/generated/cshift1_8_c4.c \
+$(srcdir)/generated/cshift1_8_c8.c \
+$(srcdir)/generated/cshift1_8_c10.c \
+$(srcdir)/generated/cshift1_8_c16.c \
+$(srcdir)/generated/cshift1_16_i1.c \
+$(srcdir)/generated/cshift1_16_i2.c \
+$(srcdir)/generated/cshift1_16_i4.c \
+$(srcdir)/generated/cshift1_16_i8.c \
+$(srcdir)/generated/cshift1_16_i16.c \
+$(srcdir)/generated/cshift1_16_r4.c \
+$(srcdir)/generated/cshift1_16_r8.c \
+$(srcdir)/generated/cshift1_16_r10.c \
+$(srcdir)/generated/cshift1_16_r16.c \
+$(srcdir)/generated/cshift1_16_c4.c \
+$(srcdir)/generated/cshift1_16_c8.c \
+$(srcdir)/generated/cshift1_16_c10.c \
+$(srcdir)/generated/cshift1_16_c16.c
+
 in_pack_c = \
 $(srcdir)/generated/in_pack_i1.c \
 $(srcdir)/generated/in_pack_i2.c \
@@ -658,7 +698,8 @@ gfor_built_src= $(i_all_c) $(i_any_c) $(i_count_c)
     $(i_eoshift3_c) $(i_cshift1_c) $(i_reshape_c) $(in_pack_c) $(in_unpack_c) \
     $(i_pow_c) $(i_pack_c) $(i_unpack_c) $(i_matmulavx128_c) \
     $(i_spread_c) selected_int_kind.inc selected_real_kind.inc kinds.h \
-    $(i_cshift0_c) kinds.inc c99_protos.inc fpu-target.h fpu-target.inc
+    $(i_cshift0_c) kinds.inc c99_protos.inc fpu-target.h fpu-target.inc \
+    $(i_cshift1a_c)
 
 # Machine generated specifics
 gfor_built_specific_src= \
@@ -986,6 +1027,9 @@ $(i_cshift0_c): m4/cshift0.m4 $(I_M4_DEPS)
 $(i_cshift1_c): m4/cshift1.m4 $(I_M4_DEPS)
 	$(M4) -Dfile=$@ -I$(srcdir)/m4 cshift1.m4 > $@
 
+$(i_cshift1a_c): m4/cshift1a.m4 $(I_M$_DEPS)
+	$(M4) -Dfile=$@ -I$(srcdir)/m4 cshift1a.m4 > $@
+
 $(in_pack_c): m4/in_pack.m4 $(I_M4_DEPS)
 	$(M4) -Dfile=$@ -I$(srcdir)/m4 in_pack.m4 > $@
 
Index: Makefile.in
===================================================================
--- Makefile.in	(Revision 249104)
+++ Makefile.in	(Arbeitskopie)
@@ -302,7 +302,20 @@ am__objects_35 = cshift0_i1.lo cshift0_i2.lo cshif
 	cshift0_i8.lo cshift0_i16.lo cshift0_r4.lo cshift0_r8.lo \
 	cshift0_r10.lo cshift0_r16.lo cshift0_c4.lo cshift0_c8.lo \
 	cshift0_c10.lo cshift0_c16.lo
-am__objects_36 = $(am__objects_4) $(am__objects_5) $(am__objects_6) \
+am__objects_36 = cshift1_4_i1.lo cshift1_4_i2.lo cshift1_4_i4.lo \
+	cshift1_4_i8.lo cshift1_4_i16.lo cshift1_4_r4.lo \
+	cshift1_4_r8.lo cshift1_4_r10.lo cshift1_4_r16.lo \
+	cshift1_4_c4.lo cshift1_4_c8.lo cshift1_4_c10.lo \
+	cshift1_4_c16.lo cshift1_8_i1.lo cshift1_8_i2.lo \
+	cshift1_8_i4.lo cshift1_8_i8.lo cshift1_8_i16.lo \
+	cshift1_8_r4.lo cshift1_8_r8.lo cshift1_8_r10.lo \
+	cshift1_8_r16.lo cshift1_8_c4.lo cshift1_8_c8.lo \
+	cshift1_8_c10.lo cshift1_8_c16.lo cshift1_16_i1.lo \
+	cshift1_16_i2.lo cshift1_16_i4.lo cshift1_16_i8.lo \
+	cshift1_16_i16.lo cshift1_16_r4.lo cshift1_16_r8.lo \
+	cshift1_16_r10.lo cshift1_16_r16.lo cshift1_16_c4.lo \
+	cshift1_16_c8.lo cshift1_16_c10.lo cshift1_16_c16.lo
+am__objects_37 = $(am__objects_4) $(am__objects_5) $(am__objects_6) \
 	$(am__objects_7) $(am__objects_8) $(am__objects_9) \
 	$(am__objects_10) $(am__objects_11) $(am__objects_12) \
 	$(am__objects_13) $(am__objects_14) $(am__objects_15) \
@@ -312,14 +325,14 @@ am__objects_35 = cshift0_i1.lo cshift0_i2.lo cshif
 	$(am__objects_25) $(am__objects_26) $(am__objects_27) \
 	$(am__objects_28) $(am__objects_29) $(am__objects_30) \
 	$(am__objects_31) $(am__objects_32) $(am__objects_33) \
-	$(am__objects_34) $(am__objects_35)
-@LIBGFOR_MINIMAL_FALSE@am__objects_37 = close.lo file_pos.lo format.lo \
+	$(am__objects_34) $(am__objects_35) $(am__objects_36)
+@LIBGFOR_MINIMAL_FALSE@am__objects_38 = close.lo file_pos.lo format.lo \
 @LIBGFOR_MINIMAL_FALSE@	inquire.lo intrinsics.lo list_read.lo \
 @LIBGFOR_MINIMAL_FALSE@	lock.lo open.lo read.lo transfer.lo \
 @LIBGFOR_MINIMAL_FALSE@	transfer128.lo unit.lo unix.lo write.lo \
 @LIBGFOR_MINIMAL_FALSE@	fbuf.lo
-am__objects_38 = size_from_kind.lo $(am__objects_37)
-@LIBGFOR_MINIMAL_FALSE@am__objects_39 = access.lo c99_functions.lo \
+am__objects_39 = size_from_kind.lo $(am__objects_38)
+@LIBGFOR_MINIMAL_FALSE@am__objects_40 = access.lo c99_functions.lo \
 @LIBGFOR_MINIMAL_FALSE@	chdir.lo chmod.lo clock.lo cpu_time.lo \
 @LIBGFOR_MINIMAL_FALSE@	ctime.lo date_and_time.lo dtime.lo \
 @LIBGFOR_MINIMAL_FALSE@	env.lo etime.lo execute_command_line.lo \
@@ -329,8 +342,8 @@ am__objects_35 = cshift0_i1.lo cshift0_i2.lo cshif
 @LIBGFOR_MINIMAL_FALSE@	rename.lo stat.lo symlnk.lo \
 @LIBGFOR_MINIMAL_FALSE@	system_clock.lo time.lo umask.lo \
 @LIBGFOR_MINIMAL_FALSE@	unlink.lo
-@IEEE_SUPPORT_TRUE@am__objects_40 = ieee_helper.lo
-am__objects_41 = associated.lo abort.lo args.lo cshift0.lo eoshift0.lo \
+@IEEE_SUPPORT_TRUE@am__objects_41 = ieee_helper.lo
+am__objects_42 = associated.lo abort.lo args.lo cshift0.lo eoshift0.lo \
 	eoshift2.lo erfc_scaled.lo extends_type_of.lo fnum.lo \
 	ierrno.lo ishftc.lo mvbits.lo move_alloc.lo pack_generic.lo \
 	selected_char_kind.lo size.lo spread_generic.lo \
@@ -337,11 +350,11 @@ am__objects_35 = cshift0_i1.lo cshift0_i2.lo cshif
 	string_intrinsics.lo rand.lo random.lo reshape_generic.lo \
 	reshape_packed.lo selected_int_kind.lo selected_real_kind.lo \
 	unpack_generic.lo in_pack_generic.lo in_unpack_generic.lo \
-	$(am__objects_39) $(am__objects_40)
-@IEEE_SUPPORT_TRUE@am__objects_42 = ieee_arithmetic.lo \
+	$(am__objects_40) $(am__objects_41)
+@IEEE_SUPPORT_TRUE@am__objects_43 = ieee_arithmetic.lo \
 @IEEE_SUPPORT_TRUE@	ieee_exceptions.lo ieee_features.lo
-am__objects_43 =
-am__objects_44 = _abs_c4.lo _abs_c8.lo _abs_c10.lo _abs_c16.lo \
+am__objects_44 =
+am__objects_45 = _abs_c4.lo _abs_c8.lo _abs_c10.lo _abs_c16.lo \
 	_abs_i4.lo _abs_i8.lo _abs_i16.lo _abs_r4.lo _abs_r8.lo \
 	_abs_r10.lo _abs_r16.lo _aimag_c4.lo _aimag_c8.lo \
 	_aimag_c10.lo _aimag_c16.lo _exp_r4.lo _exp_r8.lo _exp_r10.lo \
@@ -365,19 +378,19 @@ am__objects_35 = cshift0_i1.lo cshift0_i2.lo cshif
 	_conjg_c4.lo _conjg_c8.lo _conjg_c10.lo _conjg_c16.lo \
 	_aint_r4.lo _aint_r8.lo _aint_r10.lo _aint_r16.lo _anint_r4.lo \
 	_anint_r8.lo _anint_r10.lo _anint_r16.lo
-am__objects_45 = _sign_i4.lo _sign_i8.lo _sign_i16.lo _sign_r4.lo \
+am__objects_46 = _sign_i4.lo _sign_i8.lo _sign_i16.lo _sign_r4.lo \
 	_sign_r8.lo _sign_r10.lo _sign_r16.lo _dim_i4.lo _dim_i8.lo \
 	_dim_i16.lo _dim_r4.lo _dim_r8.lo _dim_r10.lo _dim_r16.lo \
 	_atan2_r4.lo _atan2_r8.lo _atan2_r10.lo _atan2_r16.lo \
 	_mod_i4.lo _mod_i8.lo _mod_i16.lo _mod_r4.lo _mod_r8.lo \
 	_mod_r10.lo _mod_r16.lo
-am__objects_46 = misc_specifics.lo
-am__objects_47 = $(am__objects_44) $(am__objects_45) $(am__objects_46) \
+am__objects_47 = misc_specifics.lo
+am__objects_48 = $(am__objects_45) $(am__objects_46) $(am__objects_47) \
 	dprod_r8.lo f2c_specifics.lo
-am__objects_48 = $(am__objects_3) $(am__objects_36) $(am__objects_38) \
-	$(am__objects_41) $(am__objects_42) $(am__objects_43) \
-	$(am__objects_47)
-@onestep_FALSE@am_libgfortran_la_OBJECTS = $(am__objects_48)
+am__objects_49 = $(am__objects_3) $(am__objects_37) $(am__objects_39) \
+	$(am__objects_42) $(am__objects_43) $(am__objects_44) \
+	$(am__objects_48)
+@onestep_FALSE@am_libgfortran_la_OBJECTS = $(am__objects_49)
 @onestep_TRUE@am_libgfortran_la_OBJECTS = libgfortran_c.lo
 libgfortran_la_OBJECTS = $(am_libgfortran_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@
@@ -954,6 +967,47 @@ $(srcdir)/generated/cshift1_4.c \
 $(srcdir)/generated/cshift1_8.c \
 $(srcdir)/generated/cshift1_16.c
 
+i_cshift1a_c = \
+$(srcdir)/generated/cshift1_4_i1.c \
+$(srcdir)/generated/cshift1_4_i2.c \
+$(srcdir)/generated/cshift1_4_i4.c \
+$(srcdir)/generated/cshift1_4_i8.c \
+$(srcdir)/generated/cshift1_4_i16.c \
+$(srcdir)/generated/cshift1_4_r4.c \
+$(srcdir)/generated/cshift1_4_r8.c \
+$(srcdir)/generated/cshift1_4_r10.c \
+$(srcdir)/generated/cshift1_4_r16.c \
+$(srcdir)/generated/cshift1_4_c4.c \
+$(srcdir)/generated/cshift1_4_c8.c \
+$(srcdir)/generated/cshift1_4_c10.c \
+$(srcdir)/generated/cshift1_4_c16.c \
+$(srcdir)/generated/cshift1_8_i1.c \
+$(srcdir)/generated/cshift1_8_i2.c \
+$(srcdir)/generated/cshift1_8_i4.c \
+$(srcdir)/generated/cshift1_8_i8.c \
+$(srcdir)/generated/cshift1_8_i16.c \
+$(srcdir)/generated/cshift1_8_r4.c \
+$(srcdir)/generated/cshift1_8_r8.c \
+$(srcdir)/generated/cshift1_8_r10.c \
+$(srcdir)/generated/cshift1_8_r16.c \
+$(srcdir)/generated/cshift1_8_c4.c \
+$(srcdir)/generated/cshift1_8_c8.c \
+$(srcdir)/generated/cshift1_8_c10.c \
+$(srcdir)/generated/cshift1_8_c16.c \
+$(srcdir)/generated/cshift1_16_i1.c \
+$(srcdir)/generated/cshift1_16_i2.c \
+$(srcdir)/generated/cshift1_16_i4.c \
+$(srcdir)/generated/cshift1_16_i8.c \
+$(srcdir)/generated/cshift1_16_i16.c \
+$(srcdir)/generated/cshift1_16_r4.c \
+$(srcdir)/generated/cshift1_16_r8.c \
+$(srcdir)/generated/cshift1_16_r10.c \
+$(srcdir)/generated/cshift1_16_r16.c \
+$(srcdir)/generated/cshift1_16_c4.c \
+$(srcdir)/generated/cshift1_16_c8.c \
+$(srcdir)/generated/cshift1_16_c10.c \
+$(srcdir)/generated/cshift1_16_c16.c
+
 in_pack_c = \
 $(srcdir)/generated/in_pack_i1.c \
 $(srcdir)/generated/in_pack_i2.c \
@@ -1081,7 +1135,8 @@ gfor_built_src = $(i_all_c) $(i_any_c) $(i_count_c
     $(i_eoshift3_c) $(i_cshift1_c) $(i_reshape_c) $(in_pack_c) $(in_unpack_c) \
     $(i_pow_c) $(i_pack_c) $(i_unpack_c) $(i_matmulavx128_c) \
     $(i_spread_c) selected_int_kind.inc selected_real_kind.inc kinds.h \
-    $(i_cshift0_c) kinds.inc c99_protos.inc fpu-target.h fpu-target.inc
+    $(i_cshift0_c) kinds.inc c99_protos.inc fpu-target.h fpu-target.inc \
+    $(i_cshift1a_c)
 
 
 # Machine generated specifics
@@ -1437,8 +1492,47 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift0_r4.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift0_r8.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_c10.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_c16.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_c4.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_c8.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_i1.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_i16.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_i2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_i4.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_i8.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_r10.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_r16.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_r4.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_16_r8.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cshift1_4.Plo@am__quote@
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+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_i8.lo -MD -MP -MF $(DEPDIR)/cshift1_16_i8.Tpo -c -o cshift1_16_i8.lo `test -f '$(srcdir)/generated/cshift1_16_i8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_i8.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_i8.Tpo $(DEPDIR)/cshift1_16_i8.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_i8.c' object='cshift1_16_i8.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_i8.lo `test -f '$(srcdir)/generated/cshift1_16_i8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_i8.c
+
+cshift1_16_i16.lo: $(srcdir)/generated/cshift1_16_i16.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_i16.lo -MD -MP -MF $(DEPDIR)/cshift1_16_i16.Tpo -c -o cshift1_16_i16.lo `test -f '$(srcdir)/generated/cshift1_16_i16.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_i16.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_i16.Tpo $(DEPDIR)/cshift1_16_i16.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_i16.c' object='cshift1_16_i16.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+
+cshift1_16_r4.lo: $(srcdir)/generated/cshift1_16_r4.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_r4.lo -MD -MP -MF $(DEPDIR)/cshift1_16_r4.Tpo -c -o cshift1_16_r4.lo `test -f '$(srcdir)/generated/cshift1_16_r4.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_r4.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_r4.Tpo $(DEPDIR)/cshift1_16_r4.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_r4.c' object='cshift1_16_r4.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+
+cshift1_16_r8.lo: $(srcdir)/generated/cshift1_16_r8.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_r8.lo -MD -MP -MF $(DEPDIR)/cshift1_16_r8.Tpo -c -o cshift1_16_r8.lo `test -f '$(srcdir)/generated/cshift1_16_r8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_r8.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_r8.Tpo $(DEPDIR)/cshift1_16_r8.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_r8.c' object='cshift1_16_r8.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_r8.lo `test -f '$(srcdir)/generated/cshift1_16_r8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_r8.c
+
+cshift1_16_r10.lo: $(srcdir)/generated/cshift1_16_r10.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_r10.lo -MD -MP -MF $(DEPDIR)/cshift1_16_r10.Tpo -c -o cshift1_16_r10.lo `test -f '$(srcdir)/generated/cshift1_16_r10.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_r10.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_r10.Tpo $(DEPDIR)/cshift1_16_r10.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_r10.c' object='cshift1_16_r10.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+
+cshift1_16_r16.lo: $(srcdir)/generated/cshift1_16_r16.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_r16.lo -MD -MP -MF $(DEPDIR)/cshift1_16_r16.Tpo -c -o cshift1_16_r16.lo `test -f '$(srcdir)/generated/cshift1_16_r16.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_r16.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_r16.Tpo $(DEPDIR)/cshift1_16_r16.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_r16.c' object='cshift1_16_r16.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+
+cshift1_16_c4.lo: $(srcdir)/generated/cshift1_16_c4.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_c4.lo -MD -MP -MF $(DEPDIR)/cshift1_16_c4.Tpo -c -o cshift1_16_c4.lo `test -f '$(srcdir)/generated/cshift1_16_c4.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c4.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_c4.Tpo $(DEPDIR)/cshift1_16_c4.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_c4.c' object='cshift1_16_c4.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_c4.lo `test -f '$(srcdir)/generated/cshift1_16_c4.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c4.c
+
+cshift1_16_c8.lo: $(srcdir)/generated/cshift1_16_c8.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_c8.lo -MD -MP -MF $(DEPDIR)/cshift1_16_c8.Tpo -c -o cshift1_16_c8.lo `test -f '$(srcdir)/generated/cshift1_16_c8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c8.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_c8.Tpo $(DEPDIR)/cshift1_16_c8.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_c8.c' object='cshift1_16_c8.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_c8.lo `test -f '$(srcdir)/generated/cshift1_16_c8.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c8.c
+
+cshift1_16_c10.lo: $(srcdir)/generated/cshift1_16_c10.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_c10.lo -MD -MP -MF $(DEPDIR)/cshift1_16_c10.Tpo -c -o cshift1_16_c10.lo `test -f '$(srcdir)/generated/cshift1_16_c10.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c10.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_c10.Tpo $(DEPDIR)/cshift1_16_c10.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_c10.c' object='cshift1_16_c10.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_c10.lo `test -f '$(srcdir)/generated/cshift1_16_c10.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c10.c
+
+cshift1_16_c16.lo: $(srcdir)/generated/cshift1_16_c16.c
+@am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT cshift1_16_c16.lo -MD -MP -MF $(DEPDIR)/cshift1_16_c16.Tpo -c -o cshift1_16_c16.lo `test -f '$(srcdir)/generated/cshift1_16_c16.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c16.c
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/cshift1_16_c16.Tpo $(DEPDIR)/cshift1_16_c16.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$(srcdir)/generated/cshift1_16_c16.c' object='cshift1_16_c16.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift1_16_c16.lo `test -f '$(srcdir)/generated/cshift1_16_c16.c' || echo '$(srcdir)/'`$(srcdir)/generated/cshift1_16_c16.c
+
 size_from_kind.lo: io/size_from_kind.c
 @am__fastdepCC_TRUE@	$(LIBTOOL)  --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT size_from_kind.lo -MD -MP -MF $(DEPDIR)/size_from_kind.Tpo -c -o size_from_kind.lo `test -f 'io/size_from_kind.c' || echo '$(srcdir)/'`io/size_from_kind.c
 @am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/size_from_kind.Tpo $(DEPDIR)/size_from_kind.Plo
@@ -5824,6 +6191,9 @@ fpu-target.inc: fpu-target.h $(srcdir)/libgfortran
 @MAINTAINER_MODE_TRUE@$(i_cshift1_c): m4/cshift1.m4 $(I_M4_DEPS)
 @MAINTAINER_MODE_TRUE@	$(M4) -Dfile=$@ -I$(srcdir)/m4 cshift1.m4 > $@
 
+@MAINTAINER_MODE_TRUE@$(i_cshift1a_c): m4/cshift1a.m4 $(I_M$_DEPS)
+@MAINTAINER_MODE_TRUE@	$(M4) -Dfile=$@ -I$(srcdir)/m4 cshift1a.m4 > $@
+
 @MAINTAINER_MODE_TRUE@$(in_pack_c): m4/in_pack.m4 $(I_M4_DEPS)
 @MAINTAINER_MODE_TRUE@	$(M4) -Dfile=$@ -I$(srcdir)/m4 in_pack.m4 > $@
 
Index: generated/cshift1_16.c
===================================================================
--- generated/cshift1_16.c	(Revision 249104)
+++ generated/cshift1_16.c	(Arbeitskopie)
@@ -61,12 +61,13 @@ cshift1 (gfc_array_char * const restrict ret,
   GFC_INTEGER_16 sh;
   index_type arraysize;
   index_type size;
-
+  index_type type_size;
+  
   if (pwhich)
     which = *pwhich - 1;
   else
     which = 0;
-
+ 
   if (which < 0 || (which + 1) > GFC_DESCRIPTOR_RANK (array))
     runtime_error ("Argument 'DIM' is out of range in call to 'CSHIFT'");
 
@@ -111,6 +112,98 @@ cshift1 (gfc_array_char * const restrict ret,
   if (arraysize == 0)
     return;
 
+  /* See if we should dispatch to a helper function.  */
+
+  type_size = GFC_DTYPE_TYPE_SIZE (array);
+
+  switch (type_size)
+  {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      cshift1_16_i1 ((gfc_array_i1 *)ret, (gfc_array_i1 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      cshift1_16_i2 ((gfc_array_i2 *)ret, (gfc_array_i2 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      cshift1_16_i4 ((gfc_array_i4 *)ret, (gfc_array_i4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      cshift1_16_i8 ((gfc_array_i8 *)ret, (gfc_array_i8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_INTEGER_16)
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      cshift1_16_i16 ((gfc_array_i16 *)ret, (gfc_array_i16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      cshift1_16_r4 ((gfc_array_r4 *)ret, (gfc_array_r4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      cshift1_16_r8 ((gfc_array_r8 *)ret, (gfc_array_r8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_REAL_10)
+    case GFC_DTYPE_REAL_10:
+      cshift1_16_r10 ((gfc_array_r10 *)ret, (gfc_array_r10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_REAL_16)
+    case GFC_DTYPE_REAL_16:
+      cshift1_16_r16 ((gfc_array_r16 *)ret, (gfc_array_r16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      cshift1_16_c4 ((gfc_array_c4 *)ret, (gfc_array_c4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      cshift1_16_c8 ((gfc_array_c8 *)ret, (gfc_array_c8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_COMPLEX_10)
+    case GFC_DTYPE_COMPLEX_10:
+      cshift1_16_c10 ((gfc_array_c10 *)ret, (gfc_array_c10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_COMPLEX_16)
+    case GFC_DTYPE_COMPLEX_16:
+      cshift1_16_c16 ((gfc_array_c16 *)ret, (gfc_array_c16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    default:
+      break;
+    
+  }
+  
   extent[0] = 1;
   count[0] = 0;
   n = 0;
@@ -162,22 +255,41 @@ cshift1 (gfc_array_char * const restrict ret,
     {
       /* Do the shift for this dimension.  */
       sh = *hptr;
-      sh = (div (sh, len)).rem;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
       if (sh < 0)
         sh += len;
+      if (unlikely (sh >= len || sh < 0))
+        {
+	  sh = sh % len;
+	  if (sh < 0)
+	    sh += len;
+	}
 
       src = &sptr[sh * soffset];
       dest = rptr;
-
-      for (n = 0; n < len; n++)
+      if (soffset == size && roffset == size)
+      {
+        size_t len1 = sh * size;
+	size_t len2 = (len - sh) * size;
+	memcpy (rptr, sptr + len1, len2);
+	memcpy (rptr + len2, sptr, len1);
+      }
+      else
         {
-          memcpy (dest, src, size);
-          dest += roffset;
-          if (n == len - sh - 1)
-            src = sptr;
-          else
-            src += soffset;
-        }
+	  for (n = 0; n < len - sh; n++)
+            {
+	      memcpy (dest, src, size);
+	      dest += roffset;
+	      src += soffset;
+	    }
+	    for (src = sptr, n = 0; n < sh; n++)
+	      {
+		memcpy (dest, src, size);
+		dest += roffset;
+		src += soffset;
+	      }
+	  }
 
       /* Advance to the next section.  */
       rptr += rstride0;
Index: generated/cshift1_16_c10.c
===================================================================
--- generated/cshift1_16_c10.c	(nicht existent)
+++ generated/cshift1_16_c10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_10) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_c10 (gfc_array_c10 * const restrict ret,
+		const gfc_array_c10 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_10 *rptr;
+  GFC_COMPLEX_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_10 *sptr;
+  const GFC_COMPLEX_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_c16.c
===================================================================
--- generated/cshift1_16_c16.c	(nicht existent)
+++ generated/cshift1_16_c16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_16) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_c16 (gfc_array_c16 * const restrict ret,
+		const gfc_array_c16 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_16 *rptr;
+  GFC_COMPLEX_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_16 *sptr;
+  const GFC_COMPLEX_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_c4.c
===================================================================
--- generated/cshift1_16_c4.c	(nicht existent)
+++ generated/cshift1_16_c4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_4) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_c4 (gfc_array_c4 * const restrict ret,
+		const gfc_array_c4 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_4 *rptr;
+  GFC_COMPLEX_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_4 *sptr;
+  const GFC_COMPLEX_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_c8.c
===================================================================
--- generated/cshift1_16_c8.c	(nicht existent)
+++ generated/cshift1_16_c8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_8) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_c8 (gfc_array_c8 * const restrict ret,
+		const gfc_array_c8 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_8 *rptr;
+  GFC_COMPLEX_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_8 *sptr;
+  const GFC_COMPLEX_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_i1.c
===================================================================
--- generated/cshift1_16_i1.c	(nicht existent)
+++ generated/cshift1_16_i1.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_1) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_i1 (gfc_array_i1 * const restrict ret,
+		const gfc_array_i1 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_1 *rptr;
+  GFC_INTEGER_1 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_1 *sptr;
+  const GFC_INTEGER_1 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_1);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_1);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_i16.c
===================================================================
--- generated/cshift1_16_i16.c	(nicht existent)
+++ generated/cshift1_16_i16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_i16 (gfc_array_i16 * const restrict ret,
+		const gfc_array_i16 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_16 *rptr;
+  GFC_INTEGER_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_16 *sptr;
+  const GFC_INTEGER_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_i2.c
===================================================================
--- generated/cshift1_16_i2.c	(nicht existent)
+++ generated/cshift1_16_i2.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_2) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_i2 (gfc_array_i2 * const restrict ret,
+		const gfc_array_i2 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_2 *rptr;
+  GFC_INTEGER_2 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_2 *sptr;
+  const GFC_INTEGER_2 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_2);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_2);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_i4.c
===================================================================
--- generated/cshift1_16_i4.c	(nicht existent)
+++ generated/cshift1_16_i4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_i4 (gfc_array_i4 * const restrict ret,
+		const gfc_array_i4 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_4 *rptr;
+  GFC_INTEGER_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_4 *sptr;
+  const GFC_INTEGER_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_i8.c
===================================================================
--- generated/cshift1_16_i8.c	(nicht existent)
+++ generated/cshift1_16_i8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_i8 (gfc_array_i8 * const restrict ret,
+		const gfc_array_i8 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_8 *rptr;
+  GFC_INTEGER_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_8 *sptr;
+  const GFC_INTEGER_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_r10.c
===================================================================
--- generated/cshift1_16_r10.c	(nicht existent)
+++ generated/cshift1_16_r10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_10) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_r10 (gfc_array_r10 * const restrict ret,
+		const gfc_array_r10 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_10 *rptr;
+  GFC_REAL_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_10 *sptr;
+  const GFC_REAL_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_r16.c
===================================================================
--- generated/cshift1_16_r16.c	(nicht existent)
+++ generated/cshift1_16_r16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_16) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_r16 (gfc_array_r16 * const restrict ret,
+		const gfc_array_r16 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_16 *rptr;
+  GFC_REAL_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_16 *sptr;
+  const GFC_REAL_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_r4.c
===================================================================
--- generated/cshift1_16_r4.c	(nicht existent)
+++ generated/cshift1_16_r4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_4) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_r4 (gfc_array_r4 * const restrict ret,
+		const gfc_array_r4 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_4 *rptr;
+  GFC_REAL_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_4 *sptr;
+  const GFC_REAL_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_16_r8.c
===================================================================
--- generated/cshift1_16_r8.c	(nicht existent)
+++ generated/cshift1_16_r8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_8) && defined (HAVE_GFC_INTEGER_16)
+
+void
+cshift1_16_r8 (gfc_array_r8 * const restrict ret,
+		const gfc_array_r8 * const restrict array,
+		const gfc_array_i16 * const restrict h,
+		const GFC_INTEGER_16 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_8 *rptr;
+  GFC_REAL_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_8 *sptr;
+  const GFC_REAL_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_16 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_16 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4.c
===================================================================
--- generated/cshift1_4.c	(Revision 249104)
+++ generated/cshift1_4.c	(Arbeitskopie)
@@ -61,12 +61,13 @@ cshift1 (gfc_array_char * const restrict ret,
   GFC_INTEGER_4 sh;
   index_type arraysize;
   index_type size;
-
+  index_type type_size;
+  
   if (pwhich)
     which = *pwhich - 1;
   else
     which = 0;
-
+ 
   if (which < 0 || (which + 1) > GFC_DESCRIPTOR_RANK (array))
     runtime_error ("Argument 'DIM' is out of range in call to 'CSHIFT'");
 
@@ -111,6 +112,98 @@ cshift1 (gfc_array_char * const restrict ret,
   if (arraysize == 0)
     return;
 
+  /* See if we should dispatch to a helper function.  */
+
+  type_size = GFC_DTYPE_TYPE_SIZE (array);
+
+  switch (type_size)
+  {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      cshift1_4_i1 ((gfc_array_i1 *)ret, (gfc_array_i1 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      cshift1_4_i2 ((gfc_array_i2 *)ret, (gfc_array_i2 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      cshift1_4_i4 ((gfc_array_i4 *)ret, (gfc_array_i4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      cshift1_4_i8 ((gfc_array_i8 *)ret, (gfc_array_i8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_INTEGER_16)
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      cshift1_4_i16 ((gfc_array_i16 *)ret, (gfc_array_i16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      cshift1_4_r4 ((gfc_array_r4 *)ret, (gfc_array_r4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      cshift1_4_r8 ((gfc_array_r8 *)ret, (gfc_array_r8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_REAL_10)
+    case GFC_DTYPE_REAL_10:
+      cshift1_4_r10 ((gfc_array_r10 *)ret, (gfc_array_r10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_REAL_16)
+    case GFC_DTYPE_REAL_16:
+      cshift1_4_r16 ((gfc_array_r16 *)ret, (gfc_array_r16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      cshift1_4_c4 ((gfc_array_c4 *)ret, (gfc_array_c4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      cshift1_4_c8 ((gfc_array_c8 *)ret, (gfc_array_c8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_COMPLEX_10)
+    case GFC_DTYPE_COMPLEX_10:
+      cshift1_4_c10 ((gfc_array_c10 *)ret, (gfc_array_c10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_COMPLEX_16)
+    case GFC_DTYPE_COMPLEX_16:
+      cshift1_4_c16 ((gfc_array_c16 *)ret, (gfc_array_c16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    default:
+      break;
+    
+  }
+  
   extent[0] = 1;
   count[0] = 0;
   n = 0;
@@ -162,22 +255,41 @@ cshift1 (gfc_array_char * const restrict ret,
     {
       /* Do the shift for this dimension.  */
       sh = *hptr;
-      sh = (div (sh, len)).rem;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
       if (sh < 0)
         sh += len;
+      if (unlikely (sh >= len || sh < 0))
+        {
+	  sh = sh % len;
+	  if (sh < 0)
+	    sh += len;
+	}
 
       src = &sptr[sh * soffset];
       dest = rptr;
-
-      for (n = 0; n < len; n++)
+      if (soffset == size && roffset == size)
+      {
+        size_t len1 = sh * size;
+	size_t len2 = (len - sh) * size;
+	memcpy (rptr, sptr + len1, len2);
+	memcpy (rptr + len2, sptr, len1);
+      }
+      else
         {
-          memcpy (dest, src, size);
-          dest += roffset;
-          if (n == len - sh - 1)
-            src = sptr;
-          else
-            src += soffset;
-        }
+	  for (n = 0; n < len - sh; n++)
+            {
+	      memcpy (dest, src, size);
+	      dest += roffset;
+	      src += soffset;
+	    }
+	    for (src = sptr, n = 0; n < sh; n++)
+	      {
+		memcpy (dest, src, size);
+		dest += roffset;
+		src += soffset;
+	      }
+	  }
 
       /* Advance to the next section.  */
       rptr += rstride0;
Index: generated/cshift1_4_c10.c
===================================================================
--- generated/cshift1_4_c10.c	(nicht existent)
+++ generated/cshift1_4_c10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_10) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_c10 (gfc_array_c10 * const restrict ret,
+		const gfc_array_c10 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_10 *rptr;
+  GFC_COMPLEX_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_10 *sptr;
+  const GFC_COMPLEX_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_c16.c
===================================================================
--- generated/cshift1_4_c16.c	(nicht existent)
+++ generated/cshift1_4_c16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_16) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_c16 (gfc_array_c16 * const restrict ret,
+		const gfc_array_c16 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_16 *rptr;
+  GFC_COMPLEX_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_16 *sptr;
+  const GFC_COMPLEX_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_c4.c
===================================================================
--- generated/cshift1_4_c4.c	(nicht existent)
+++ generated/cshift1_4_c4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_4) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_c4 (gfc_array_c4 * const restrict ret,
+		const gfc_array_c4 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_4 *rptr;
+  GFC_COMPLEX_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_4 *sptr;
+  const GFC_COMPLEX_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_c8.c
===================================================================
--- generated/cshift1_4_c8.c	(nicht existent)
+++ generated/cshift1_4_c8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_8) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_c8 (gfc_array_c8 * const restrict ret,
+		const gfc_array_c8 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_8 *rptr;
+  GFC_COMPLEX_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_8 *sptr;
+  const GFC_COMPLEX_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_i1.c
===================================================================
--- generated/cshift1_4_i1.c	(nicht existent)
+++ generated/cshift1_4_i1.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_1) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_i1 (gfc_array_i1 * const restrict ret,
+		const gfc_array_i1 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_1 *rptr;
+  GFC_INTEGER_1 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_1 *sptr;
+  const GFC_INTEGER_1 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_1);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_1);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_i16.c
===================================================================
--- generated/cshift1_4_i16.c	(nicht existent)
+++ generated/cshift1_4_i16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_i16 (gfc_array_i16 * const restrict ret,
+		const gfc_array_i16 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_16 *rptr;
+  GFC_INTEGER_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_16 *sptr;
+  const GFC_INTEGER_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_i2.c
===================================================================
--- generated/cshift1_4_i2.c	(nicht existent)
+++ generated/cshift1_4_i2.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_2) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_i2 (gfc_array_i2 * const restrict ret,
+		const gfc_array_i2 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_2 *rptr;
+  GFC_INTEGER_2 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_2 *sptr;
+  const GFC_INTEGER_2 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_2);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_2);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_i4.c
===================================================================
--- generated/cshift1_4_i4.c	(nicht existent)
+++ generated/cshift1_4_i4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_i4 (gfc_array_i4 * const restrict ret,
+		const gfc_array_i4 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_4 *rptr;
+  GFC_INTEGER_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_4 *sptr;
+  const GFC_INTEGER_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_i8.c
===================================================================
--- generated/cshift1_4_i8.c	(nicht existent)
+++ generated/cshift1_4_i8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_i8 (gfc_array_i8 * const restrict ret,
+		const gfc_array_i8 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_8 *rptr;
+  GFC_INTEGER_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_8 *sptr;
+  const GFC_INTEGER_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_r10.c
===================================================================
--- generated/cshift1_4_r10.c	(nicht existent)
+++ generated/cshift1_4_r10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_10) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_r10 (gfc_array_r10 * const restrict ret,
+		const gfc_array_r10 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_10 *rptr;
+  GFC_REAL_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_10 *sptr;
+  const GFC_REAL_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_r16.c
===================================================================
--- generated/cshift1_4_r16.c	(nicht existent)
+++ generated/cshift1_4_r16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_16) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_r16 (gfc_array_r16 * const restrict ret,
+		const gfc_array_r16 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_16 *rptr;
+  GFC_REAL_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_16 *sptr;
+  const GFC_REAL_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_r4.c
===================================================================
--- generated/cshift1_4_r4.c	(nicht existent)
+++ generated/cshift1_4_r4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_4) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_r4 (gfc_array_r4 * const restrict ret,
+		const gfc_array_r4 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_4 *rptr;
+  GFC_REAL_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_4 *sptr;
+  const GFC_REAL_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_4_r8.c
===================================================================
--- generated/cshift1_4_r8.c	(nicht existent)
+++ generated/cshift1_4_r8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_8) && defined (HAVE_GFC_INTEGER_4)
+
+void
+cshift1_4_r8 (gfc_array_r8 * const restrict ret,
+		const gfc_array_r8 * const restrict array,
+		const gfc_array_i4 * const restrict h,
+		const GFC_INTEGER_4 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_8 *rptr;
+  GFC_REAL_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_8 *sptr;
+  const GFC_REAL_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_4 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_4 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8.c
===================================================================
--- generated/cshift1_8.c	(Revision 249104)
+++ generated/cshift1_8.c	(Arbeitskopie)
@@ -61,12 +61,13 @@ cshift1 (gfc_array_char * const restrict ret,
   GFC_INTEGER_8 sh;
   index_type arraysize;
   index_type size;
-
+  index_type type_size;
+  
   if (pwhich)
     which = *pwhich - 1;
   else
     which = 0;
-
+ 
   if (which < 0 || (which + 1) > GFC_DESCRIPTOR_RANK (array))
     runtime_error ("Argument 'DIM' is out of range in call to 'CSHIFT'");
 
@@ -111,6 +112,98 @@ cshift1 (gfc_array_char * const restrict ret,
   if (arraysize == 0)
     return;
 
+  /* See if we should dispatch to a helper function.  */
+
+  type_size = GFC_DTYPE_TYPE_SIZE (array);
+
+  switch (type_size)
+  {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      cshift1_8_i1 ((gfc_array_i1 *)ret, (gfc_array_i1 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      cshift1_8_i2 ((gfc_array_i2 *)ret, (gfc_array_i2 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      cshift1_8_i4 ((gfc_array_i4 *)ret, (gfc_array_i4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      cshift1_8_i8 ((gfc_array_i8 *)ret, (gfc_array_i8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_INTEGER_16)
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      cshift1_8_i16 ((gfc_array_i16 *)ret, (gfc_array_i16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      cshift1_8_r4 ((gfc_array_r4 *)ret, (gfc_array_r4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      cshift1_8_r8 ((gfc_array_r8 *)ret, (gfc_array_r8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_REAL_10)
+    case GFC_DTYPE_REAL_10:
+      cshift1_8_r10 ((gfc_array_r10 *)ret, (gfc_array_r10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_REAL_16)
+    case GFC_DTYPE_REAL_16:
+      cshift1_8_r16 ((gfc_array_r16 *)ret, (gfc_array_r16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      cshift1_8_c4 ((gfc_array_c4 *)ret, (gfc_array_c4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      cshift1_8_c8 ((gfc_array_c8 *)ret, (gfc_array_c8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_COMPLEX_10)
+    case GFC_DTYPE_COMPLEX_10:
+      cshift1_8_c10 ((gfc_array_c10 *)ret, (gfc_array_c10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_COMPLEX_16)
+    case GFC_DTYPE_COMPLEX_16:
+      cshift1_8_c16 ((gfc_array_c16 *)ret, (gfc_array_c16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    default:
+      break;
+    
+  }
+  
   extent[0] = 1;
   count[0] = 0;
   n = 0;
@@ -162,22 +255,41 @@ cshift1 (gfc_array_char * const restrict ret,
     {
       /* Do the shift for this dimension.  */
       sh = *hptr;
-      sh = (div (sh, len)).rem;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
       if (sh < 0)
         sh += len;
+      if (unlikely (sh >= len || sh < 0))
+        {
+	  sh = sh % len;
+	  if (sh < 0)
+	    sh += len;
+	}
 
       src = &sptr[sh * soffset];
       dest = rptr;
-
-      for (n = 0; n < len; n++)
+      if (soffset == size && roffset == size)
+      {
+        size_t len1 = sh * size;
+	size_t len2 = (len - sh) * size;
+	memcpy (rptr, sptr + len1, len2);
+	memcpy (rptr + len2, sptr, len1);
+      }
+      else
         {
-          memcpy (dest, src, size);
-          dest += roffset;
-          if (n == len - sh - 1)
-            src = sptr;
-          else
-            src += soffset;
-        }
+	  for (n = 0; n < len - sh; n++)
+            {
+	      memcpy (dest, src, size);
+	      dest += roffset;
+	      src += soffset;
+	    }
+	    for (src = sptr, n = 0; n < sh; n++)
+	      {
+		memcpy (dest, src, size);
+		dest += roffset;
+		src += soffset;
+	      }
+	  }
 
       /* Advance to the next section.  */
       rptr += rstride0;
Index: generated/cshift1_8_c10.c
===================================================================
--- generated/cshift1_8_c10.c	(nicht existent)
+++ generated/cshift1_8_c10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_10) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_c10 (gfc_array_c10 * const restrict ret,
+		const gfc_array_c10 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_10 *rptr;
+  GFC_COMPLEX_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_10 *sptr;
+  const GFC_COMPLEX_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_c16.c
===================================================================
--- generated/cshift1_8_c16.c	(nicht existent)
+++ generated/cshift1_8_c16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_16) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_c16 (gfc_array_c16 * const restrict ret,
+		const gfc_array_c16 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_16 *rptr;
+  GFC_COMPLEX_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_16 *sptr;
+  const GFC_COMPLEX_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_c4.c
===================================================================
--- generated/cshift1_8_c4.c	(nicht existent)
+++ generated/cshift1_8_c4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_4) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_c4 (gfc_array_c4 * const restrict ret,
+		const gfc_array_c4 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_4 *rptr;
+  GFC_COMPLEX_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_4 *sptr;
+  const GFC_COMPLEX_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_c8.c
===================================================================
--- generated/cshift1_8_c8.c	(nicht existent)
+++ generated/cshift1_8_c8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_COMPLEX_8) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_c8 (gfc_array_c8 * const restrict ret,
+		const gfc_array_c8 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_COMPLEX_8 *rptr;
+  GFC_COMPLEX_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_COMPLEX_8 *sptr;
+  const GFC_COMPLEX_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_COMPLEX_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_COMPLEX_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_i1.c
===================================================================
--- generated/cshift1_8_i1.c	(nicht existent)
+++ generated/cshift1_8_i1.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_1) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_i1 (gfc_array_i1 * const restrict ret,
+		const gfc_array_i1 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_1 *rptr;
+  GFC_INTEGER_1 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_1 *sptr;
+  const GFC_INTEGER_1 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_1);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_1);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_i16.c
===================================================================
--- generated/cshift1_8_i16.c	(nicht existent)
+++ generated/cshift1_8_i16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_i16 (gfc_array_i16 * const restrict ret,
+		const gfc_array_i16 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_16 *rptr;
+  GFC_INTEGER_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_16 *sptr;
+  const GFC_INTEGER_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_i2.c
===================================================================
--- generated/cshift1_8_i2.c	(nicht existent)
+++ generated/cshift1_8_i2.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_2) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_i2 (gfc_array_i2 * const restrict ret,
+		const gfc_array_i2 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_2 *rptr;
+  GFC_INTEGER_2 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_2 *sptr;
+  const GFC_INTEGER_2 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_2);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_2);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_i4.c
===================================================================
--- generated/cshift1_8_i4.c	(nicht existent)
+++ generated/cshift1_8_i4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_i4 (gfc_array_i4 * const restrict ret,
+		const gfc_array_i4 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_4 *rptr;
+  GFC_INTEGER_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_4 *sptr;
+  const GFC_INTEGER_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_i8.c
===================================================================
--- generated/cshift1_8_i8.c	(nicht existent)
+++ generated/cshift1_8_i8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_i8 (gfc_array_i8 * const restrict ret,
+		const gfc_array_i8 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_INTEGER_8 *rptr;
+  GFC_INTEGER_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_INTEGER_8 *sptr;
+  const GFC_INTEGER_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_INTEGER_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_INTEGER_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_r10.c
===================================================================
--- generated/cshift1_8_r10.c	(nicht existent)
+++ generated/cshift1_8_r10.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_10) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_r10 (gfc_array_r10 * const restrict ret,
+		const gfc_array_r10 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_10 *rptr;
+  GFC_REAL_10 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_10 *sptr;
+  const GFC_REAL_10 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_10);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_10);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_r16.c
===================================================================
--- generated/cshift1_8_r16.c	(nicht existent)
+++ generated/cshift1_8_r16.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_16) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_r16 (gfc_array_r16 * const restrict ret,
+		const gfc_array_r16 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_16 *rptr;
+  GFC_REAL_16 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_16 *sptr;
+  const GFC_REAL_16 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_16);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_16);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_r4.c
===================================================================
--- generated/cshift1_8_r4.c	(nicht existent)
+++ generated/cshift1_8_r4.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_4) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_r4 (gfc_array_r4 * const restrict ret,
+		const gfc_array_r4 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_4 *rptr;
+  GFC_REAL_4 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_4 *sptr;
+  const GFC_REAL_4 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_4);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_4);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: generated/cshift1_8_r8.c
===================================================================
--- generated/cshift1_8_r8.c	(nicht existent)
+++ generated/cshift1_8_r8.c	(Arbeitskopie)
@@ -0,0 +1,193 @@
+/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>
+
+#if defined (HAVE_GFC_REAL_8) && defined (HAVE_GFC_INTEGER_8)
+
+void
+cshift1_8_r8 (gfc_array_r8 * const restrict ret,
+		const gfc_array_r8 * const restrict array,
+		const gfc_array_i8 * const restrict h,
+		const GFC_INTEGER_8 * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  GFC_REAL_8 *rptr;
+  GFC_REAL_8 *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const GFC_REAL_8 *sptr;
+  const GFC_REAL_8 *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const GFC_INTEGER_8 *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  GFC_INTEGER_8 sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof (GFC_REAL_8);
+	  size_t len2 = (len - sh) * sizeof (GFC_REAL_8);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif
Index: libgfortran.h
===================================================================
--- libgfortran.h	(Revision 249104)
+++ libgfortran.h	(Arbeitskopie)
@@ -1418,4 +1418,317 @@ void cshift0_c16 (gfc_array_c16 *, const gfc_array
 internal_proto(cshift0_c16);
 #endif
 
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_1)
+void cshift1_4_i1 (gfc_array_i1 * const restrict,
+	const gfc_array_i1 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_i1);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_2)
+void cshift1_4_i2 (gfc_array_i2 * const restrict,
+	const gfc_array_i2 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_i2);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_4)
+void cshift1_4_i4 (gfc_array_i4 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_i4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_8)
+void cshift1_4_i8 (gfc_array_i8 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_i8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_INTEGER_16)
+void cshift1_4_i16 (gfc_array_i16 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_i16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_1)
+void cshift1_8_i1 (gfc_array_i1 * const restrict,
+	const gfc_array_i1 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_i1);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_2)
+void cshift1_8_i2 (gfc_array_i2 * const restrict,
+	const gfc_array_i2 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_i2);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_4)
+void cshift1_8_i4 (gfc_array_i4 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_i4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_8)
+void cshift1_8_i8 (gfc_array_i8 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_i8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_INTEGER_16)
+void cshift1_8_i16 (gfc_array_i16 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_i16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_1)
+void cshift1_16_i1 (gfc_array_i1 * const restrict,
+	const gfc_array_i1 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_i1);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_2)
+void cshift1_16_i2 (gfc_array_i2 * const restrict,
+	const gfc_array_i2 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_i2);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_4)
+void cshift1_16_i4 (gfc_array_i4 * const restrict,
+	const gfc_array_i4 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_i4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_8)
+void cshift1_16_i8 (gfc_array_i8 * const restrict,
+	const gfc_array_i8 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_i8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_16)
+void cshift1_16_i16 (gfc_array_i16 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const gfc_array_i16 * const restrict,
+	const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_i16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_REAL_4)
+void cshift1_4_r4 (gfc_array_r4 * const restrict,
+        const gfc_array_r4 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_r4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_REAL_8)
+void cshift1_4_r8 (gfc_array_r8 * const restrict,
+        const gfc_array_r8 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_r8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_REAL_10)
+void cshift1_4_r10 (gfc_array_r10 * const restrict,
+        const gfc_array_r10 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_r10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_REAL_16)
+void cshift1_4_r16 (gfc_array_r16 * const restrict,
+        const gfc_array_r16 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_r16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_REAL_4)
+void cshift1_8_r4 (gfc_array_r4 * const restrict,
+        const gfc_array_r4 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_r4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_REAL_8)
+void cshift1_8_r8 (gfc_array_r8 * const restrict,
+        const gfc_array_r8 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_r8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_REAL_10)
+void cshift1_8_r10 (gfc_array_r10 * const restrict,
+        const gfc_array_r10 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_r10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_REAL_16)
+void cshift1_8_r16 (gfc_array_r16 * const restrict,
+        const gfc_array_r16 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_r16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_REAL_4)
+void cshift1_16_r4 (gfc_array_r4 * const restrict,
+        const gfc_array_r4 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_r4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_REAL_8)
+void cshift1_16_r8 (gfc_array_r8 * const restrict,
+        const gfc_array_r8 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_r8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_REAL_10)
+void cshift1_16_r10 (gfc_array_r10 * const restrict,
+        const gfc_array_r10 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_r10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_REAL_16)
+void cshift1_16_r16 (gfc_array_r16 * const restrict,
+        const gfc_array_r16 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_r16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_COMPLEX_4)
+void cshift1_4_c4 (gfc_array_c4 * const restrict,
+        const gfc_array_c4 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_c4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_COMPLEX_8)
+void cshift1_4_c8 (gfc_array_c8 * const restrict,
+        const gfc_array_c8 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_c8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_COMPLEX_10)
+void cshift1_4_c10 (gfc_array_c10 * const restrict,
+        const gfc_array_c10 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_c10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_4) && defined (HAVE_GFC_COMPLEX_16)
+void cshift1_4_c16 (gfc_array_c16 * const restrict,
+        const gfc_array_c16 * const restrict,
+        const gfc_array_i4 * const restrict,
+        const GFC_INTEGER_4 * const restrict);
+internal_proto(cshift1_4_c16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_COMPLEX_4)
+void cshift1_8_c4 (gfc_array_c4 * const restrict,
+        const gfc_array_c4 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_c4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_COMPLEX_8)
+void cshift1_8_c8 (gfc_array_c8 * const restrict,
+        const gfc_array_c8 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_c8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_COMPLEX_10)
+void cshift1_8_c10 (gfc_array_c10 * const restrict,
+        const gfc_array_c10 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_c10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_8) && defined (HAVE_GFC_COMPLEX_16)
+void cshift1_8_c16 (gfc_array_c16 * const restrict,
+        const gfc_array_c16 * const restrict,
+        const gfc_array_i8 * const restrict,
+        const GFC_INTEGER_8 * const restrict);
+internal_proto(cshift1_8_c16);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_COMPLEX_4)
+void cshift1_16_c4 (gfc_array_c4 * const restrict,
+        const gfc_array_c4 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_c4);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_COMPLEX_8)
+void cshift1_16_c8 (gfc_array_c8 * const restrict,
+        const gfc_array_c8 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_c8);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_COMPLEX_10)
+void cshift1_16_c10 (gfc_array_c10 * const restrict,
+        const gfc_array_c10 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_c10);
+#endif
+
+#if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_COMPLEX_16)
+void cshift1_16_c16 (gfc_array_c16 * const restrict,
+        const gfc_array_c16 * const restrict,
+        const gfc_array_i16 * const restrict,
+        const GFC_INTEGER_16 * const restrict);
+internal_proto(cshift1_16_c16);
+#endif
+
+
 #endif  /* LIBGFOR_H  */
Index: m4/cshift1.m4
===================================================================
--- m4/cshift1.m4	(Revision 249104)
+++ m4/cshift1.m4	(Arbeitskopie)
@@ -62,12 +62,13 @@ cshift1 (gfc_array_char * const restrict ret,
   'atype_name` sh;
   index_type arraysize;
   index_type size;
-
+  index_type type_size;
+  
   if (pwhich)
     which = *pwhich - 1;
   else
     which = 0;
-
+ 
   if (which < 0 || (which + 1) > GFC_DESCRIPTOR_RANK (array))
     runtime_error ("Argument ''`DIM''` is out of range in call to ''`CSHIFT''`");
 
@@ -112,6 +113,98 @@ cshift1 (gfc_array_char * const restrict ret,
   if (arraysize == 0)
     return;
 
+  /* See if we should dispatch to a helper function.  */
+
+  type_size = GFC_DTYPE_TYPE_SIZE (array);
+
+  switch (type_size)
+  {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      cshift1_'atype_kind`_i1 ((gfc_array_i1 *)ret, (gfc_array_i1 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      cshift1_'atype_kind`_i2 ((gfc_array_i2 *)ret, (gfc_array_i2 *) array,
+      			h, pwhich);
+      return;
+ 
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      cshift1_'atype_kind`_i4 ((gfc_array_i4 *)ret, (gfc_array_i4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      cshift1_'atype_kind`_i8 ((gfc_array_i8 *)ret, (gfc_array_i8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_INTEGER_16)
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      cshift1_'atype_kind`_i16 ((gfc_array_i16 *)ret, (gfc_array_i16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      cshift1_'atype_kind`_r4 ((gfc_array_r4 *)ret, (gfc_array_r4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      cshift1_'atype_kind`_r8 ((gfc_array_r8 *)ret, (gfc_array_r8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_REAL_10)
+    case GFC_DTYPE_REAL_10:
+      cshift1_'atype_kind`_r10 ((gfc_array_r10 *)ret, (gfc_array_r10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_REAL_16)
+    case GFC_DTYPE_REAL_16:
+      cshift1_'atype_kind`_r16 ((gfc_array_r16 *)ret, (gfc_array_r16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      cshift1_'atype_kind`_c4 ((gfc_array_c4 *)ret, (gfc_array_c4 *) array,
+      			h, pwhich);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      cshift1_'atype_kind`_c8 ((gfc_array_c8 *)ret, (gfc_array_c8 *) array,
+      			h, pwhich);
+      return;
+
+#if defined (HAVE_COMPLEX_10)
+    case GFC_DTYPE_COMPLEX_10:
+      cshift1_'atype_kind`_c10 ((gfc_array_c10 *)ret, (gfc_array_c10 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+#if defined (HAVE_COMPLEX_16)
+    case GFC_DTYPE_COMPLEX_16:
+      cshift1_'atype_kind`_c16 ((gfc_array_c16 *)ret, (gfc_array_c16 *) array,
+      			h, pwhich);
+      return;
+#endif
+
+    default:
+      break;
+    
+  }
+  
   extent[0] = 1;
   count[0] = 0;
   n = 0;
@@ -163,22 +256,41 @@ cshift1 (gfc_array_char * const restrict ret,
     {
       /* Do the shift for this dimension.  */
       sh = *hptr;
-      sh = (div (sh, len)).rem;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
       if (sh < 0)
         sh += len;
+      if (unlikely (sh >= len || sh < 0))
+        {
+	  sh = sh % len;
+	  if (sh < 0)
+	    sh += len;
+	}
 
       src = &sptr[sh * soffset];
       dest = rptr;
-
-      for (n = 0; n < len; n++)
+      if (soffset == size && roffset == size)
+      {
+        size_t len1 = sh * size;
+	size_t len2 = (len - sh) * size;
+	memcpy (rptr, sptr + len1, len2);
+	memcpy (rptr + len2, sptr, len1);
+      }
+      else
         {
-          memcpy (dest, src, size);
-          dest += roffset;
-          if (n == len - sh - 1)
-            src = sptr;
-          else
-            src += soffset;
-        }
+	  for (n = 0; n < len - sh; n++)
+            {
+	      memcpy (dest, src, size);
+	      dest += roffset;
+	      src += soffset;
+	    }
+	    for (src = sptr, n = 0; n < sh; n++)
+	      {
+		memcpy (dest, src, size);
+		dest += roffset;
+		src += soffset;
+	      }
+	  }
 
       /* Advance to the next section.  */
       rptr += rstride0;
Index: m4/cshift1a.m4
===================================================================
--- m4/cshift1a.m4	(nicht existent)
+++ m4/cshift1a.m4	(Arbeitskopie)
@@ -0,0 +1,194 @@
+`/* Implementation of the CSHIFT intrinsic.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <string.h>'
+include(iparm.m4)dnl
+
+`#if defined (HAVE_'atype_name`) && defined (HAVE_'rtype_name`)
+
+void
+cshift1'rtype_qual`_'atype_code` ('atype` * const restrict ret,
+		const 'atype` * const restrict array,
+		const 'rtype` * const restrict h,
+		const 'rtype_name` * const restrict pwhich)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type roffset;
+  'atype_name` *rptr;
+  'atype_name` *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type soffset;
+  const 'atype_name` *sptr;
+  const 'atype_name` *src;
+  /* h.* indicates the shift array.  */
+  index_type hstride[GFC_MAX_DIMENSIONS];
+  index_type hstride0;
+  const 'rtype_name` *hptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type rs_ex[GFC_MAX_DIMENSIONS];
+  index_type ss_ex[GFC_MAX_DIMENSIONS];
+  index_type hs_ex[GFC_MAX_DIMENSIONS];
+
+  index_type dim;
+  index_type len;
+  index_type n;
+  int which;
+  'rtype_name` sh;
+
+  /* Bounds checking etc is already done by the caller.  */
+
+  if (pwhich)
+    which = *pwhich - 1;
+  else
+    which = 0;
+
+  extent[0] = 1;
+  count[0] = 0;
+  n = 0;
+
+  /* Initialized for avoiding compiler warnings.  */
+  roffset = 1;
+  soffset = 1;
+  len = 0;
+
+  for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
+    {
+      if (dim == which)
+        {
+          roffset = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          if (roffset == 0)
+            roffset = 1;
+          soffset = GFC_DESCRIPTOR_STRIDE(array,dim);
+          if (soffset == 0)
+            soffset = 1;
+          len = GFC_DESCRIPTOR_EXTENT(array,dim);
+        }
+      else
+        {
+          count[n] = 0;
+          extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+          rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,dim);
+          sstride[n] = GFC_DESCRIPTOR_STRIDE(array,dim);
+          hstride[n] = GFC_DESCRIPTOR_STRIDE(h,n);
+	  rs_ex[n] = rstride[n] * extent[n];
+	  ss_ex[n] = sstride[n] * extent[n];
+	  hs_ex[n] = hstride[n] * extent[n];
+          n++;
+        }
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (rstride[0] == 0)
+    rstride[0] = 1;
+  if (hstride[0] == 0)
+    hstride[0] = 1;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+  rstride0 = rstride[0];
+  sstride0 = sstride[0];
+  hstride0 = hstride[0];
+  rptr = ret->base_addr;
+  sptr = array->base_addr;
+  hptr = h->base_addr;
+
+  while (rptr)
+    {
+      /* Do the shift for this dimension.  */
+      sh = *hptr;
+      /* Normal case should be -len < sh < len; try to
+         avoid the expensive remainder operation if possible.  */
+      if (sh < 0)
+        sh += len;
+      if (unlikely(sh >= len || sh < 0))
+	{
+ 	  sh = sh % len;
+	  if (sh < 0)
+            sh += len;
+	}
+      src = &sptr[sh * soffset];
+      dest = rptr;
+      if (soffset == 1 && roffset == 1)
+	{
+	  size_t len1 = sh * sizeof ('atype_name`);
+	  size_t len2 = (len - sh) * sizeof ('atype_name`);
+	  memcpy (rptr, sptr + sh, len2);
+	  memcpy (rptr + (len - sh), sptr, len1);
+	}
+      else
+        {
+	  for (n = 0; n < len - sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	  for (src = sptr, n = 0; n < sh; n++)
+	    {
+	      *dest = *src;
+	      dest += roffset;
+	      src += soffset;
+	    }
+	}
+
+      /* Advance to the next section.  */
+      rptr += rstride0;
+      sptr += sstride0;
+      hptr += hstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          rptr -= rs_ex[n];
+          sptr -= ss_ex[n];
+	  hptr -= hs_ex[n];
+          n++;
+          if (n >= dim - 1)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              sptr += sstride[n];
+	      hptr += hstride[n];
+            }
+        }
+    }
+}
+
+#endif'
! { dg-do  run }
! Test CSHIFT with array argument for shift
module rnd
  implicit none
contains
  subroutine fill(a,n)
    integer, intent(out), dimension(:,:) :: a
    integer, intent(in) :: n
    real, dimension(size(a,1),size(a,2)) :: r
    call random_number(r)
    a = int(2*n*r-n)
  end subroutine fill
end module rnd

module csh
  implicit none
contains
  subroutine emul_cshift(a,sh_in,dim, c)
    integer, dimension(:,:,:), intent(in) :: a
    integer, dimension(:,:,:), intent(out) :: c
    integer, dimension(:,:), intent(in) :: sh_in
    integer, intent(in) :: dim
    integer :: sh, rsh
    integer :: s1, s2, s3, n, i
    integer :: n1, n2, n3
    n1 = size(a,1)
    n2 = size(a,2)
    n3 = size(a,3)
    if (dim == 1) then
       n = n1
       do s2=1,n2
          do s3=1,n3
             sh = modulo(sh_in(s2,s3), n)
             rsh = n - sh
             do i=1,rsh
                c(i,s2,s3) = a(i+sh,s2,s3)
             end do
             do i=rsh+1,n
                c(i,s2,s3) = a(i-rsh,s2,s3)
             end do
          end do
       end do
    else if (dim == 2) then
       n = n2
       do s3=1,n3
          do s1=1,n1
             sh = modulo(sh_in(s1,s3),n)
             rsh = n - sh
             do i=1,rsh
                c(s1,i,s3) = a(s1,i+sh,s3)
             end do
             do i=rsh+1,n
                c(s1,i,s3) = a(s1,i-rsh,s3)
             end do
          end do
       end do

    else if (dim == 3) then
       n = n3
       do s2=1,n2
          do s1=1,n1
             sh = modulo(sh_in(s1,s2),n)
             rsh = n - sh
             do i=1,rsh
                c(s1,s2,i) = a(s1,s2,i+sh)
             end do
             do i=rsh+1,n
                c(s1,s2,i) = a(s1,s2,i-rsh)
             end do
          end do
       end do
    else
       stop "Illegal dim"
    end if
  end subroutine emul_cshift
end module csh
program main
  use csh
  use rnd
  implicit none
  integer, parameter :: n1=30,n2=40,n3=50
  integer, dimension(n1,n2,n3) :: a, b,c
  integer :: s1, s2, s3
  integer :: dim
  integer, dimension(:,:), allocatable :: sh1, sh2, sh3
  integer, dimension(:), allocatable :: sh_shift
  integer :: sh, rsh
  integer :: i,j,k,v
  type t
     integer :: i1, i2, i3
  end type t
  type(t), dimension(n1,n2,n3) :: ta, tb

  v = 1
  do k=1,n3
     do j=1,n2
        do i=1,n1
           a(i,j,k) = v
           v = v + 1
        end do
     end do
  end do

  ta%i1 = a
  ta%i2 = a+a
  ta%i3 = a+a+a
  allocate(sh1(n2,n3))
  allocate(sh2(n1,n3))
  allocate(sh3(n1,n2))

  call fill(sh1,10)
  call fill(sh2,10)
  call fill(sh3,10)

  b = cshift(a,sh1,1)
  call emul_cshift(a,sh1,1,c)
  if (any(b /= c)) then
     print *,b
     print *,c
     call abort
  end if
  tb = cshift(ta,sh1,1)
  if (any(tb%i1 /= c)) call abort
  
  b = cshift(a,sh2,2)
  call emul_cshift(a,sh2,2,c)
  if (any(b /= c)) call abort
  tb = cshift(ta,sh2,2)
  if (any (tb%i2 /= c*2)) call abort

  b = cshift(a,sh3,3)
  call emul_cshift(a,sh3,3,c)
  if (any(b /= c)) call abort
  tb = cshift(ta,sh3,3)
  if (any(tb%i3 /= c*3)) call abort

  b = -42
  c = -42
  b(1:n1:2,:,:) = cshift(a(1:n1/2,:,:),sh1,1)
  call emul_cshift(a(1:n1/2,:,:), sh1, 1, c(1:n1:2,:,:))
  if (any(b /= c)) call abort

  tb%i1 = -42
  tb%i2 = -2*42
  tb%i3 = -3*42
  tb(1:n1:2,:,:) = cshift(ta(1:n1/2,:,:),sh1,1)
  if (any(tb%i1 /= b)) call abort
  if (any(tb%i2 /= 2*b)) call abort
  if (any(tb%i3 /= 3*b)) call abort
  
9000 format (99(3(I3,1X),2X))
end program main

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