https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111350
Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2023-09-09
--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Sandoe from comment #6)
> (In reply to Iain Sandoe from comment #5)
> > (In reply to Iain Sandoe from comment #4)
> > > (In reply to Francois-Xavier Coudert from comment #3)
> > > > Clang: 14.0.0 build 1400
> > > > CLT: 14.2.0.0.1.1668646533
> maybe something like this (untested because 15b7 is only supported on
> macOS13 and my avx512 box has an earlier install)
>
> diff --git a/gcc/testsuite/lib/target-supports.exp
> b/gcc/testsuite/lib/target-supports.exp
> index 0ea8bcb24e1..2d74f62e887 100644
> --- a/gcc/testsuite/lib/target-supports.exp
> +++ b/gcc/testsuite/lib/target-supports.exp
> @@ -9776,6 +9776,7 @@ proc check_effective_target_avx512fp16 { } {
> void foo (void)
> {
> asm volatile ("vmovw %edi, %xmm0");
> + asm volatile ("vfcmulcph %xmm1, %xmm2, %xmm3");
> }
> } "-O2 -mavx512fp16" ]
> }
hmm not enough it needs:
+ asm volatile ("vfcmulcph %xmm1, %xmm2, %xmm3{%k1}");
to fail on XC14 and pass on XC15
