[Bug middle-end/103530] New: ICE: in execute, at gimple-harden-conditionals.cc:397 with -O -fharden-compares

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103530

            Bug ID: 103530
           Summary: ICE: in execute, at gimple-harden-conditionals.cc:397
                    with -O -fharden-compares
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Created attachment 51923
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51923&action=edit
reduced testcase

This seems to be different from PR103024

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fharden-compares testcase.C 
during GIMPLE pass: hardcmp
testcase.C: In function 'void foo(E)':
testcase.C:15:1: internal compiler error: in execute, at
gimple-harden-conditionals.cc:397
   15 | foo (E)
      | ^~~
0xd6e750 execute
        /repo/gcc-trunk/gcc/gimple-harden-conditionals.cc:397
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.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-5705-20211202014655-g1c5317d6214-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/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-r12-5705-20211202014655-g1c5317d6214-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20211202 (experimental) (GCC)