https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64687
Bug ID: 64687
Summary: powerpc: GCC 5.0 (trunk@219851) build failure for
powerpc with hardware decimal floating point disabled
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: azanella at linux dot vnet.ibm.com
Created attachment 34499
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34499&action=edit
Testcase to trigger the issue
GCC 5.0 (trunk@219851) trigger the following issue when building a C file with
Decimal types for powerpc64 with hardware decimal floating point disabled
(-DSHARED -O3 -fpic -ggdb3 -mno-hard-dfp):
../libdfp-git/sysdeps/dpd/decode.c: In function ‘__decoded32’:
../libdfp-git/sysdeps/dpd/decode.c:77:1: error: insn does not satisfy its
constraints:
}
^
(insn 278 13 279 2 (set (mem/c:SD (plus:DI (reg/f:DI 1 1)
(const_int -16 [0xfffffffffffffff0])) [18 %sfp+48 S4 A32])
(reg:SD 33 1)) ../libdfp-git/sysdeps/dpd/decode.c:40 492
{movsd_hardfloat}
(nil))
../libdfp-git/sysdeps/dpd/decode.c:77:1: internal compiler error: in
extract_constrain_insn, at recog.c:2246
0x105f6b13 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc-git/gcc/rtl-error.c:110
0x105f6b6b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc-git/gcc/rtl-error.c:121
0x105bf81b extract_constrain_insn(rtx_insn*)
../../gcc-git/gcc/recog.c:2246
0x1059c8d7 reload_cse_simplify_operands
../../gcc-git/gcc/postreload.c:430
0x1059dd33 reload_cse_simplify
../../gcc-git/gcc/postreload.c:207
0x1059dd33 reload_cse_regs_1
../../gcc-git/gcc/postreload.c:246
0x1059f9d7 reload_cse_regs
../../gcc-git/gcc/postreload.c:94
0x1059f9d7 execute
../../gcc-git/gcc/postreload.c:2367
Temporary files in attachments (decode.i and decode.s), to reproduce just
issue:
$ gcc decode.i -c -DSHARED -O3 -fpic -ggdb3 -mno-hard-dfp
