[Bug tree-optimization/105668] New: [13 Regression] ICE: in gimple_expand_vec_cond_expr, at gimple-isel.cc:281 with -O -ftracer -fno-tree-fre

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105668

            Bug ID: 105668
           Summary: [13 Regression] ICE: in gimple_expand_vec_cond_expr,
                    at gimple-isel.cc:281 with -O -ftracer -fno-tree-fre
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Created attachment 53004
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53004&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -ftracer -fno-tree-fre testcase.c
during GIMPLE pass: isel
testcase.c: In function 'foo':
testcase.c:6:1: internal compiler error: in gimple_expand_vec_cond_expr, at
gimple-isel.cc:281
    6 | foo (_Complex float f)
      | ^~~
0x7f158f gimple_expand_vec_cond_expr
        /repo/gcc-trunk/gcc/gimple-isel.cc:281
0x7f158f gimple_expand_vec_exprs
        /repo/gcc-trunk/gcc/gimple-isel.cc:311
0x7f158f execute
        /repo/gcc-trunk/gcc/gimple-isel.cc:365
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-r13-673-20220519175438-gd863ba23fb1-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/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-r13-673-20220519175438-gd863ba23fb1-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20220519 (experimental) (GCC)