[Bug target/101812] New: [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc)

[Bug target/101812] New: [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc)

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101812

            Bug ID: 101812
           Summary: [12 Regression] ICE: Segmentation fault (in
                    ix86_expand_sse_movcc)
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: x86_64-unknown-linux-gnu

gcc-12.0.0-alpha20210801 (g:6f0c43e97825ee54e3779afbedcd0def12443001) ICEs when
compiling gcc/testsuite/gcc.target/arm/neon-vcond-ltgt.c w/ -O1
-ftree-loop-vectorize -fvect-cost-model=unlimited:

% x86_64-unknown-linux-gnu-gcc-12.0.0 -O1 -ftree-loop-vectorize
-fvect-cost-model=unlimited -c gcc/testsuite/gcc.target/arm/neon-vcond-ltgt.c
during RTL pass: expand
gcc/testsuite/gcc.target/arm/neon-vcond-ltgt.c: In function 'foo':
gcc/testsuite/gcc.target/arm/neon-vcond-ltgt.c:7:6: internal compiler error:
Segmentation fault
    7 | void foo (int ilast,float* w, float* w2)
      |      ^~~
0xe4816f crash_signal
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/toplev.c:328
0x128d90a ix86_expand_sse_movcc(rtx_def*, rtx_def*, rtx_def*, rtx_def*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/config/i386/i386-expand.c:3815
0x128f491 ix86_expand_fp_vcond(rtx_def**)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/config/i386/i386-expand.c:4685
0x167e4b9 gen_vcondv2sfv2sf(rtx_def*, rtx_def*, rtx_def*, rtx_def*, rtx_def*,
rtx_def*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/config/i386/mmx.md:908
0xd2af98 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/optabs.c:7835
0xd2af98 expand_insn(insn_code, unsigned int, expand_operand*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/optabs.c:7866
0xbb61d0 expand_vec_cond_optab_fn
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/internal-fn.c:2812
0x97e637 expand_call_stmt
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/cfgexpand.c:2752
0x97e637 expand_gimple_stmt_1
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/cfgexpand.c:3879
0x97e637 expand_gimple_stmt
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/cfgexpand.c:4043
0x984889 expand_gimple_basic_block
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/cfgexpand.c:6085
0x98663e execute
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210801/work/gcc-12-20210801/gcc/cfgexpand.c:6811

[Bug target/101812] [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc) since r12-731-gb1f7fd8a2a5558da

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101812

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |uros at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-08-08
            Summary|[12 Regression] ICE:        |[12 Regression] ICE:
                   |Segmentation fault (in      |Segmentation fault (in
                   |ix86_expand_sse_movcc)      |ix86_expand_sse_movcc)
                   |                            |since
                   |                            |r12-731-gb1f7fd8a2a5558da
     Ever confirmed|0                           |1

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r12-731-gb1f7fd8a2a5558da.

[Bug target/101812] [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc) since r12-731-gb1f7fd8a2a5558da

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101812

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.0
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |ubizjak at gmail dot com
            Version|unknown                     |12.0

--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Patch in testing:

--cut here--
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 0984f7cc44d..2d3b63f0834 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -952,7 +952,7 @@
    (set_attr "prefix" "orig,vex")
    (set_attr "mode" "V4SF")])

-(define_insn "*mmx_<code>v2sf3"
+(define_insn "<code>v2sf3"
   [(set (match_operand:V2SF 0 "register_operand" "=x,x")
        (any_logic:V2SF
          (match_operand:V2SF 1 "register_operand" "%0,x")
--cut here--

[Bug target/101812] [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc) since r12-731-gb1f7fd8a2a5558da

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101812

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:9d2d660aab2f332b1e3f69a2fb3419cf3cc33b47

commit r12-2821-g9d2d660aab2f332b1e3f69a2fb3419cf3cc33b47
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Mon Aug 9 16:38:54 2021 +0200

    i386: Name V2SF logic insns [PR101812]

    Name V2SF logic insns, so expand_simple_binop works with V2SF modes.

    2021-08-09  Uroš Bizjak  <ubizjak@gmail.com>

    gcc/
            PR target/101812
            * config/i386/mmx.md (<any_logic:code>v2sf3):
            Rename from *mmx_<any_logic:code>v2sf3

    gcc/testsuite/
            PR target/101812
            * gcc.target/i386/pr101812.c: New test.

[Bug target/101812] [12 Regression] ICE: Segmentation fault (in ix86_expand_sse_movcc) since r12-731-gb1f7fd8a2a5558da

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101812

Uroš Bizjak <ubizjak at gmail dot com> changed:

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

--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed.