[Bug tree-optimization/113409] New: ICE: in omp_extract_for_data, at omp-general.cc:411 with -fopenmp-simd and _BitInt()

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113409

            Bug ID: 113409
           Summary: ICE: in omp_extract_for_data, at omp-general.cc:411
                    with -fopenmp-simd and _BitInt()
           Product: gcc
           Version: 14.0
            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
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

Created attachment 57095
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57095&action=edit
reduced testcase

This is reduced from gcc.dg/ipa/pr90555.c, when testsuite is run with
-Dint=_BitInt($RANDOM)

Compiler output:
$ x86_64-pc-linux-gnu-gcc -fopenmp-simd testcase.c 
during GIMPLE pass: omplower
testcase.c: In function 'test_simduid2':
testcase.c:9:9: internal compiler error: in omp_extract_for_data, at
omp-general.cc:411
    9 | #pragma omp simd reduction(+: c2)
      |         ^~~
0x7cb15b omp_extract_for_data(gomp_for*, omp_for_data*, omp_for_data_loop*)
        /repo/gcc-trunk/gcc/omp-general.cc:411
0x137d0c9 lower_omp_for
        /repo/gcc-trunk/gcc/omp-low.cc:11782
0x1368804 lower_omp_1
        /repo/gcc-trunk/gcc/omp-low.cc:14388
0x1368804 lower_omp
        /repo/gcc-trunk/gcc/omp-low.cc:14590
0x13681db lower_omp_1
        /repo/gcc-trunk/gcc/omp-low.cc:14372
0x13681db lower_omp
        /repo/gcc-trunk/gcc/omp-low.cc:14590
0x136c420 execute_lower_omp
        /repo/gcc-trunk/gcc/omp-low.cc:14629
0x136c420 execute
        /repo/gcc-trunk/gcc/omp-low.cc:14683
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-r14-7255-20240115165927-g6c703b4eb68-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/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
--disable-bootstrap --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-r14-7255-20240115165927-g6c703b4eb68-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240115 (experimental) (GCC)