https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110966
Bug ID: 110966
Summary: should matmul_c8_avx512f be updated with
matmul_c8_x86-64-v4.
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: crazylht at gmail dot com
Target Milestone: ---
In libgfortran/m4/matmul.m4, we have
#ifdef HAVE_AVX512F
'define(`matmul_name',`matmul_'rtype_code`_avx512f')dnl
`static void
'matmul_name` ('rtype` * const restrict retarray,
'rtype` * const restrict a, 'rtype` * const restrict b, int try_blas,
int blas_limit, blas_call gemm) __attribute__((__target__("avx512f")));
static' include(matmul_internal.m4)dnl
`#endif /* HAVE_AVX512F */
But target ("avx512f") only enable -mavx512f which has quite limited capability
of AVX512. Since now we have arch level, should we use target("arch=x86-64-v4")
instead.
