[Bug target/83604] [8 Regression] ICE in copy_to_mode_reg, at explow.c:630

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83604

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I actually see a different ICE on sse-13.c without any command line options,
reduced into:
typedef short V __attribute__((__vector_size__(64)));

__attribute__((target ("avx512vbmi2"))) V
foo (V x, V y, V z)
{
  return __builtin_ia32_vpshrdv_v32hi (x, y, z);
}

This ICEs because __builtin_ia32_vpshrd_v32hi builtin (correctly) only requires
AVX512VBMI2, not BW, but the actual instruction incorrectly requires also
AVX512BW.