https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119581
Li Pan <pan2.li at intel dot com> changed:
What |Removed |Added
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CC| |pan2.li at intel dot com
--- Comment #1 from Li Pan <pan2.li at intel dot com> ---
(In reply to Jeffrey A. Law from comment #0)
> #include <stdbool.h>
>
> void andn(int *a, int mask) {
> for (int i = 0; i < 256; i++)
> a[i] &= ~mask;
> }
>
> Should compile down into a vandn. Support for this was recently added to
> LLVM and reported to me privately as a missed optimization bug in GCC.
>
>
> https://godbolt.org/z/zzvK3q635
I see, I can help after stage 1 open, and possibly other insn from zvbb.
