https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103205
Bug ID: 103205
Summary: [12 Regression] ICE Segmentation fault since
r12-5102-gfb161782545224f5
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: hjl at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux-gnu
The following crashes:
$ cat ice.i
int short sync_fetch_and_and_short_15_a;
int __attribute__sync_fetch_and_and_short_15() {
return __sync_fetch_and_and(&sync_fetch_and_and_short_15_a, ~1) & 1;
}
$ gcc ice.i -march=c3-2 -m32 -O2 -c
during RTL pass: expand
ice.i: In function ‘__attribute__sync_fetch_and_and_short_15’:
ice.i:4:10: internal compiler error: Segmentation fault
4 | return __sync_fetch_and_and(&sync_fetch_and_and_short_15_a, ~1) & 1;
| ^~~~~~~~~~~~~~~~~~~~
0xf1db4a crash_signal
/home/marxin/Programming/gcc/gcc/toplev.c:322
0x7ffff789979f ???
/usr/src/debug/glibc-2.34-2.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0xb62ee1 emit_move_insn(rtx_def*, rtx_def*)
/home/marxin/Programming/gcc/gcc/expr.c:4013
0x1917918 gen_atomic_bit_test_and_resethi(rtx_def*, rtx_def*, rtx_def*,
rtx_def*, rtx_def*)
/home/marxin/Programming/gcc/gcc/config/i386/sync.md:806
0xdec8fc maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/home/marxin/Programming/gcc/gcc/optabs.c:7915
0xa007bb expand_ifn_atomic_bit_test_and(gcall*)
/home/marxin/Programming/gcc/gcc/builtins.c:6225
0xa2f5d7 expand_call_stmt
/home/marxin/Programming/gcc/gcc/cfgexpand.c:2749
0xa2f5d7 expand_gimple_stmt_1
/home/marxin/Programming/gcc/gcc/cfgexpand.c:3876
0xa2f5d7 expand_gimple_stmt
/home/marxin/Programming/gcc/gcc/cfgexpand.c:4040
0xa35464 expand_gimple_basic_block
/home/marxin/Programming/gcc/gcc/cfgexpand.c:6082
0xa37687 execute
/home/marxin/Programming/gcc/gcc/cfgexpand.c:6808
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
