http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59040
Bug ID: 59040
Summary: [4.9 Regression] r203937 caused: FAIL:
gcc.dg/torture/memcpy-1.c -O0 (internal compiler
error)
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: areg.melikadamyan at gmail dot com, hubicka at gcc dot
gnu.org
Target: i686
On x86, I got
/export/project/git/gcc-regression/master/203937/bld/gcc/xgcc
-B/export/project/git/gcc-regression/master/203937/bld/gcc/
/export/project/git/gcc-regression/gcc/gcc/testsuite/gcc.dg/torture/memcpy-1.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -m32
-mtune=pentiumpro -minline-all-stringops -S
/export/project/git/gcc-regression/gcc/gcc/testsuite/gcc.dg/torture/memcpy-1.c:
In function \u2018my_memcpy\u2019:
/export/project/git/gcc-regression/gcc/gcc/testsuite/gcc.dg/torture/memcpy-1.c:8:20:
internal compiler error: in
expand_set_or_movmem_prologue_epilogue_by_misaligned_moves, at
config/i386/i386.c:22998
0xe26c7a expand_set_or_movmem_prologue_epilogue_by_misaligned_moves
../../../../gcc/gcc/config/i386/i386.c:22998
0xe28568 ix86_expand_set_or_movmem
../../../../gcc/gcc/config/i386/i386.c:23646
0xe29175 ix86_expand_movmem(rtx_def*, rtx_def*, rtx_def*, rtx_def*, rtx_def*,
rtx_def*)
../../../../gcc/gcc/config/i386/i386.c:23909
0xf0392b gen_movmemsi(rtx_def*, rtx_def*, rtx_def*, rtx_def*, rtx_def*,
rtx_def*)
../../../../gcc/gcc/config/i386/i386.md:15440
0x9f6798 insn_gen_fn::operator()(rtx_def*, rtx_def*, rtx_def*, rtx_def*,
rtx_def*, rtx_def*) const
../../../../gcc/gcc/recog.h:288
0x9f5feb maybe_gen_insn(insn_code, unsigned int, expand_operand*)
../../../../gcc/gcc/optabs.c:8227
0x9f6158 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
../../../../gcc/gcc/optabs.c:8247
0x7b77a3 emit_block_move_via_movmem
../../../../gcc/gcc/expr.c:1322
0x7b7123 emit_block_move_hints(rtx_def*, rtx_def*, rtx_def*, block_op_methods,
unsigned int, long)
../../../../gcc/gcc/expr.c:1178
0x66b3de expand_builtin_memcpy
../../../../gcc/gcc/builtins.c:3138
0x673917 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
../../../../gcc/gcc/builtins.c:6099
0x7d5f99 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
../../../../gcc/gcc/expr.c:10208
0x6bb173 expand_call_stmt
../../../../gcc/gcc/cfgexpand.c:2183
0x6bb26d expand_gimple_stmt_1
../../../../gcc/gcc/cfgexpand.c:2221
0x6bb8ba expand_gimple_stmt
../../../../gcc/gcc/cfgexpand.c:2373
0x6bb9ae expand_gimple_tailcall
../../../../gcc/gcc/cfgexpand.c:2420
0x6c1c5c expand_gimple_basic_block
../../../../gcc/gcc/cfgexpand.c:4189
0x6c37ba gimple_expand_cfg
../../../../gcc/gcc/cfgexpand.c:4731
0x6c3e44 execute
../../../../gcc/gcc/cfgexpand.c:4945
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Please include the complete backtrace with any bug report.
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