https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101549
Bug ID: 101549
Summary: [12 Regression] internal compiler error: in
extract_insn, at recog.c:2769
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
[hjl@gnu-cfl-2 gcc]$ cat /tmp/x.c
#include <immintrin.h>
unsigned int
test_mm_crc32_u8(unsigned int CRC, unsigned char V)
{
return _mm_crc32_u8(CRC, V);
}
[hjl@gnu-cfl-2 gcc]$ ./xgcc -B./ -S /tmp/x.c -msse4 -mno-crc32
/tmp/x.c: In function ‘test_mm_crc32_u8’:
/tmp/x.c:7:1: error: unrecognizable insn:
7 | }
| ^
(insn 16 15 22 2 (set (reg:SI 84 [ D.24970 ])
(unspec:SI [
(reg:SI 89)
(subreg:QI (reg:SI 90) 0)
] UNSPEC_CRC32)) "./include/smmintrin.h":829:10 -1
(nil))
during RTL pass: vregs
/tmp/x.c:7:1: internal compiler error: in extract_insn, at recog.c:2769
0x125686e _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/export/gnu/import/git/gitlab/x86-gcc/gcc/rtl-error.c:108
0x12568af _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/export/gnu/import/git/gitlab/x86-gcc/gcc/rtl-error.c:116
0x11fd163 extract_insn(rtx_insn*)
/export/gnu/import/git/gitlab/x86-gcc/gcc/recog.c:2769
0xe5d4cf instantiate_virtual_regs_in_insn
/export/gnu/import/git/gitlab/x86-gcc/gcc/function.c:1611
0xe5eb4c instantiate_virtual_regs
/export/gnu/import/git/gitlab/x86-gcc/gcc/function.c:1985
0xe5ec1c execute
/export/gnu/import/git/gitlab/x86-gcc/gcc/function.c:2034
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.
[hjl@gnu-cfl-2 gcc]$
