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[Bug middle-end/56548] New: [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: "d.g.gorbachev at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 06 Mar 2013 09:00:45 +0000
- Subject: [Bug middle-end/56548] New: [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56548
Bug #: 56548
Summary: [4.8 Regression] ICE in emit_move_insn, at expr.c:3486
with -march=pentium{pro,2,3} -O3
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: d.g.gorbachev@gmail.com
GCC 4.8.0 20130303 (experimental).
$ cat > bug.c
short foo(short x)
{
int i;
for (i = 0; i < 3; i++)
if (x > 0)
x--;
return x;
}
^D
$ gcc -S -O3 -march=pentium3 bug.c
bug.c: In function 'foo':
bug.c:9:3: internal compiler error: in emit_move_insn, at expr.c:3486
return x;
^
0x834eaa1 emit_move_insn(rtx_def*, rtx_def*)
../../gcc-4.8/gcc/expr.c:3485
0x8600ef9 expand_value_return
../../gcc-4.8/gcc/stmt.c:1461
0x86068d8 expand_return(tree_node*)
../../gcc-4.8/gcc/stmt.c:1547
0x825eefc expand_gimple_stmt_1
../../gcc-4.8/gcc/cfgexpand.c:2182
0x825f82c expand_gimple_stmt
../../gcc-4.8/gcc/cfgexpand.c:2304
0x8262484 expand_gimple_basic_block
../../gcc-4.8/gcc/cfgexpand.c:4083
0x82648c8 gimple_expand_cfg
../../gcc-4.8/gcc/cfgexpand.c:4602
GCC 20121118 (r193607) - fails, 20121111 (r193417) - works.
- Follow-Ups:
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: jakub at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: jakub at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: jakub at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: jakub at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: sje at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: jakub at gcc dot gnu.org
- [Bug middle-end/56548] [4.8 Regression] ICE in emit_move_insn, at expr.c:3486 with -march=pentium{pro,2,3} -O3
- From: sje at gcc dot gnu.org