[Bug target/101549] New: [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[Bug target/101549] New: [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[hjl.tools at gmail dot com]

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]$

[Bug target/101549] [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101549

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.0
             Target|                            |x86_64-*-* i?86-*-*

[Bug target/101549] [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101549

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:7aa28dbc371cf3c09c05c68672b00d9006391595

commit r12-2440-g7aa28dbc371cf3c09c05c68672b00d9006391595
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Jul 21 05:15:55 2021 -0700

    x86: Remove OPTION_MASK_ISA_SSE4_2 from CRC32 _builtin functions

    Since

    commit 39671f87b2df6a1894cc11a161e4a7949d1ddccd
    Author: H.J. Lu <hjl.tools@gmail.com>
    Date:   Thu Apr 15 05:59:48 2021 -0700

        x86: Use crc32 target option for CRC32 intrinsics

    enabled OPTION_MASK_ISA_CRC32 for -msse4 and removed TARGET_SSE4_2 check
    in sse4_2_crc32<mode> pattens, remove OPTION_MASK_ISA_SSE4_2 from CRC32
    _builtin functions.

    gcc/

            PR target/101549
            * config/i386/i386-builtin.def: Remove OPTION_MASK_ISA_SSE4_2
            from CRC32 _builtin functions.

    gcc/testsuite/

            PR target/101549
            * gcc.target/i386/crc32-6.c: New test.

[Bug target/101549] [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101549

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 12.  GCC 11 failed to disable CRC32 with -mno-crc32 (PR 101561).

[Bug target/101549] [12 Regression] internal compiler error: in extract_insn, at recog.c:2769

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101549

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:7dc952f1c043ecb79aec6734175a4312696b5052

commit r11-8927-g7dc952f1c043ecb79aec6734175a4312696b5052
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Jul 21 05:15:55 2021 -0700

    x86: Remove OPTION_MASK_ISA_SSE4_2 from CRC32 _builtin functions

    Since

    commit 39671f87b2df6a1894cc11a161e4a7949d1ddccd
    Author: H.J. Lu <hjl.tools@gmail.com>
    Date:   Thu Apr 15 05:59:48 2021 -0700

        x86: Use crc32 target option for CRC32 intrinsics

    enabled OPTION_MASK_ISA_CRC32 for -msse4 and removed TARGET_SSE4_2 check
    in sse4_2_crc32<mode> pattens, remove OPTION_MASK_ISA_SSE4_2 from CRC32
    _builtin functions.

    gcc/

            PR target/101549
            * config/i386/i386-builtin.def: Remove OPTION_MASK_ISA_SSE4_2
            from CRC32 _builtin functions.

    gcc/testsuite/

            PR target/101549
            * gcc.target/i386/crc32-6.c: New test.

    (cherry picked from commit 7aa28dbc371cf3c09c05c68672b00d9006391595)