https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79887
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
A simpler test-case from our test-suite:
$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c -O3
--param vect-epilogues-nomask=1 -mavx512ifma
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/no-trapping-math-1.c:5:1:
internal compiler error: in set_uid_loop_bbs, at tree-vectorizer.c:482
foo (float a[32], float b[2][32])
^~~
0xe83956 set_uid_loop_bbs
../../gcc/tree-vectorizer.c:481
0xe83956 vectorize_loops()
../../gcc/tree-vectorizer.c:681
