What is the builtin for _mm_sha256rnds2_epu32?
Tue Apr 18 09:37:00 GMT 2017
On Tue, Apr 18, 2017 at 5:35 AM, Jonathan Wakely <firstname.lastname@example.org> wrote:
> On 18 April 2017 at 10:27, Jeffrey Walton wrote:
>> Man, I wish GCC would have made those damn intrinsics available like
>> the bug report requests.
> That's not what the bug report requested, as clarified already by the reporter.
> Look at the example in 57202, it uses function multiversioning so the
> intrinsic is only used when the target supports it.
Multifunctions only work on x86. They break on ARM and POWR8.
Intrinsics could have worked everywhere, but something else was provided.
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