[Bug rtl-optimization/58934] New: [4.9 Regression]: build fails on cris-elf in reload_cse_simplify_operands for newlib dtoa.c

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58934

            Bug ID: 58934
           Summary: [4.9 Regression]: build fails on cris-elf in
                    reload_cse_simplify_operands for newlib dtoa.c
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: build, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: jamborm at gcc dot gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: cris-axis-elf

Created attachment 31115
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31115&action=edit
Repeat as ./cc1 -fpreprocessed -O2 -o dtoa.s dtoa.i

Revision r204205 caused the build for cris-elf to fail as follows:

/tmp/break20131030_05/gccobj/./gcc/xgcc -B/tmp/break20131030_05/gccobj/./gcc/
-nostdinc -B/tmp/break20131030_05/gccobj/cris-elf/v8/newlib/ -isystem
/tmp/break20131030_05/gccobj/cris-elf/v8/newlib/targ-include -isystem
/tmp/break20131030_05/gcc/newlib/libc/include
-B/tmp/break20131030_05/gccobj/cris-elf/v8/libgloss/cris
-L/tmp/break20131030_05/gccobj/cris-elf/v8/libgloss/libnosys
-L/tmp/break20131030_05/gcc/libgloss/cris
-B/tmp/break20131030_05/pre/cris-elf/bin/
-B/tmp/break20131030_05/pre/cris-elf/lib/ -isystem
/tmp/break20131030_05/pre/cris-elf/include -isystem
/tmp/break20131030_05/pre/cris-elf/sys-include  -march=v8 -mbest-lib-options
-DPACKAGE_NAME=\"newlib\" -DPACKAGE_TARNAME=\"newlib\"
-DPACKAGE_VERSION=\"1.20.0\" -DPACKAGE_STRING=\"newlib\ 1.20.0\"
-DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -I.
-I/tmp/break20131030_05/gcc/newlib/libc/stdlib -DHAVE_RENAME -D_USE_WRITE
-DCOMPACT_CTYPE -fno-builtin      -g -O2  -march=v8 -mbest-lib-options -c -o
lib_a-dtoa.o `test -f 'dtoa.c' || echo
'/tmp/break20131030_05/gcc/newlib/libc/stdlib/'`dtoa.c
/tmp/break20131030_05/gcc/newlib/libc/stdlib/dtoa.c: In function 'quorem':
/tmp/break20131030_05/gcc/newlib/libc/stdlib/dtoa.c:142:1: error: insn does not
satisfy its constraints:
 }
 ^
(insn 289 35 288 3 (set (reg/v/f:SI 171 [orig:132 S ] [132])
        (reg/v/f:SI 11 r11 [orig:132 S ] [132])) 37 {*movsi_internal}
     (nil))
/tmp/break20131030_05/gcc/newlib/libc/stdlib/dtoa.c:142:1: internal compiler
error: in reload_cse_simplify_operands, at postreload.c:411
0x8a5018 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
    /tmp/break20131030_05/gcc/gcc/rtl-error.c:109
0x8a503f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
    /tmp/break20131030_05/gcc/gcc/rtl-error.c:120
0x858866 reload_cse_simplify_operands
    /tmp/break20131030_05/gcc/gcc/postreload.c:411
0x858b44 reload_cse_simplify
    /tmp/break20131030_05/gcc/gcc/postreload.c:123
0x858b44 reload_cse_regs_1
    /tmp/break20131030_05/gcc/gcc/postreload.c:220
0x858bd3 reload_cse_regs
    /tmp/break20131030_05/gcc/gcc/postreload.c:68
0x858bd3 rest_of_handle_postreload
    /tmp/break20131030_05/gcc/gcc/postreload.c:2332
0x858bd3 execute
    /tmp/break20131030_05/gcc/gcc/postreload.c:2368
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[8]: *** [lib_a-dtoa.o] Error 1
make[8]: Leaving directory
`/tmp/break20131030_05/gccobj/cris-elf/v8/newlib/libc/stdlib'

Author of commit CC:ed.  Preprocessed code attached.