[Bug rtl-optimization/111753] New: [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter

[Bug rtl-optimization/111753] New: [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

            Bug ID: 111753
           Summary: [14 Regression] ICE: in extract_constrain_insn, at
                    recog.cc:2692 insn does not satisfy its constraints:
                    {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

Created attachment 56087
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56087&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -mavx512bw -fno-tree-ter testcase.c 
testcase.c: In function 'foo':
testcase.c:35:9: warning: division by zero [-Wdiv-by-zero]
   35 |   f32_0 /= 0;
      |         ^~
testcase.c:38:13: warning: division by zero [-Wdiv-by-zero]
   38 |   v256f32_0 /= 0;
      |             ^~
testcase.c:66:1: error: insn does not satisfy its constraints:
   66 | }
      | ^
(insn 713 222 227 2 (set (reg:SF 52 xmm16 [473])
        (const_double:SF 0.0 [0x0.0p+0])) "testcase.c":45:13 160
{*movsf_internal}
     (expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0])
        (nil)))
during RTL pass: cprop_hardreg
testcase.c:66:1: internal compiler error: in extract_constrain_insn, at
recog.cc:2692
0x7e2e60 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:108
0x7e2ee7 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:118
0x7d359b extract_constrain_insn(rtx_insn*)
        /repo/gcc-trunk/gcc/recog.cc:2692
0x13fdd85 copyprop_hardreg_forward_1
        /repo/gcc-trunk/gcc/regcprop.cc:836
0x13ff199 execute
        /repo/gcc-trunk/gcc/regcprop.cc:1423
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-4521-20231009151152-g08d0f840dc7-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-4521-20231009151152-g08d0f840dc7-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20231009 (experimental) (GCC)

[Bug rtl-optimization/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-10-17
             Status|UNCONFIRMED                 |NEW
           Priority|P3                          |P1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[14 Regression] ICE: in     |[14 Regression] ICE: in
                   |extract_constrain_insn, at  |extract_constrain_insn, at
                   |recog.cc:2692 insn does not |recog.cc:2692 insn does not
                   |satisfy its constraints:    |satisfy its constraints:
                   |{*movsf_internal} with -O2  |{*movsf_internal} with -O2
                   |-mavx512bw -fno-tree-ter    |-mavx512bw -fno-tree-ter
                   |                            |starting with r14-4499
                 CC|                            |haochen.jiang at intel dot com,
                   |                            |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r14-4499-gc1eef66baa8dde706d7ea6921648e6016dc7c93d

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[haochen.jiang at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

--- Comment #3 from Haochen Jiang <haochen.jiang at intel dot com> ---
It seems like caused by I changed the behavior when trying to use x/ymm16+ w/o
avx512vl specified.

Working on a solution for that.

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[haochen.jiang at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

--- Comment #4 from Haochen Jiang <haochen.jiang at intel dot com> ---
Proposed patch:

https://gcc.gnu.org/pipermail/gcc-patches/2023-October/633677.html

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Haochen Jiang <jianghc@gcc.gnu.org>:

https://gcc.gnu.org/g:1df490edd48042b07aa780b088148a9118cbcb46

commit r14-4841-g1df490edd48042b07aa780b088148a9118cbcb46
Author: Haochen Jiang <haochen.jiang@intel.com>
Date:   Thu Oct 19 16:39:16 2023 +0800

    i386: Prevent splitting to xmm16+ when !TARGET_AVX512VL

    Currently, there will be a chance in split to use x/ymm16+ w/o AVX512VL,
    which finally leads to an ICE as pr111753 does.

    This patch aims to fix that.

    gcc/ChangeLog:

            PR target/111753
            * config/i386/i386.cc (ix86_standard_x87sse_constant_load_p):
            Do not split to xmm16+ when !TARGET_AVX512VL.

    gcc/testsuite/ChangeLog:

            PR target/111753
            * gcc.target/i386/pr111753.c: New test.

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[haochen.jiang at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

--- Comment #6 from Haochen Jiang <haochen.jiang at intel dot com> ---
Fixed on trunk.

[Bug target/111753] [14 Regression] ICE: in extract_constrain_insn, at recog.cc:2692 insn does not satisfy its constraints: {*movsf_internal} with -O2 -mavx512bw -fno-tree-ter starting with r14-4499

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111753

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
                 CC|                            |sjames at gcc dot gnu.org

--- Comment #7 from Sam James <sjames at gcc dot gnu.org> ---
Let's close then