[Bug target/122457] unrecognizable insn for gcc.target/i386/vnniint16-auto-vectorize-1.c with -march=znver4

[liuhongt at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122457

--- Comment #2 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
512-bit vpdpwusd instruction requires AVX10.2, the iterator use VI2_AVX512F,
and condition is TARGET_AVXVNNIINT16 || TARGET_AVX10_2, so case
TARGET_AVXVNNIINT16 + TARGET_AVX512F meet the condition of the expander but
failed the condition of define_insn.