[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" <gcc-bugzilla@gcc.gnu.org>]

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)