[Bug middle-end/37608] New: [4.4 Regression] libgcc2.c:1981: ICE: vector VEC(m em_ref_p,base) index domain error, in create_vop_ref_mapping_loop at tree-ssa-lo op-im.c:1519

["danglin at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The following error has occurred since I defined IRA_COVER_CLASSES on the
hppa64-hp-hpux11.11:

/test/gnu/gcc/objdir/./gcc/xgcc -B/test/gnu/gcc/objdir/./gcc/
-B/opt/gnu64/gcc/g
cc-4.4.0/hppa64-hp-hpux11.11/bin/
-B/opt/gnu64/gcc/gcc-4.4.0/hppa64-hp-hpux11.11
/lib/ -isystem /opt/gnu64/gcc/gcc-4.4.0/hppa64-hp-hpux11.11/include -isystem
/op
t/gnu64/gcc/gcc-4.4.0/hppa64-hp-hpux11.11/sys-include -g -O2 -O2  -g -O2
-DIN_GC
C   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wcast-qua
l -Wold-style-definition  -isystem ./include  -fPIC -Dpa64=1 -DELF=1
-mlong-call
s -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I.
-I../..
/./gcc -I../../../gcc/libgcc -I../../../gcc/libgcc/.
-I../../../gcc/libgcc/../gc
c -I../../../gcc/libgcc/../include  -DHAVE_CC_TLS -o __gcc_bcmp.o -MT
__gcc_bcmp
.o -MD -MP -MF __gcc_bcmp.dep -DL__gcc_bcmp -c
../../../gcc/libgcc/../gcc/libgcc
2.c \
          -fvisibility=hidden -DHIDE_EXPORTS
../../../gcc/libgcc/../gcc/libgcc2.c: In function '__gcc_bcmp':
../../../gcc/libgcc/../gcc/libgcc2.c:1981: internal compiler error: vector
VEC(m
em_ref_p,base) index domain error, in create_vop_ref_mapping_loop at
tree-ssa-lo
op-im.c:1519

-bash-3.2$ ./xgcc -B./ -v
Reading specs from ./specs
Target: hppa64-hp-hpux11.11
Configured with: ../gcc/configure --with-gnu-as --with-as=/opt/gnu64/bin/as
--with-ld=/usr/ccs/bin/ld --enable-shared --disable-nls
--with-local-prefix=/opt/gnu64 --prefix=/opt/gnu64/gcc/gcc-4.4.0
--build=hppa64-hp-hpux11.11 --enable-threads=posix --disable-libmudflap
--with-gmp=/opt/gnu64/gcc/gcc-4.4.0 --enable-languages=c
Thread model: posix
gcc version 4.4.0 20080921 (experimental) [trunk revision 140520] (GCC) 

I know that create_vop_ref_mapping_loop is miscompiled by the stage 1 compiler.
Replacing the tree-ssa-loop-im.o objects generated in stage 2 and 3 with the
stage 1 object allows bootstrap to complete.  Also, changing the function
create_vop_ref_mapping_loop from static to global allows a successful
bootstrap.


-- 
           Summary: [4.4 Regression] libgcc2.c:1981: ICE: vector VEC(m
                    em_ref_p,base) index domain error, in
                    create_vop_ref_mapping_loop at tree-ssa-lo op-im.c:1519
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa64-hp-hpux11.11
  GCC host triplet: hppa64-hp-hpux11.11
GCC target triplet: hppa64-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37608