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[Bug target/59952] -march=core-avx2 should not enable RTM
- From: "thiago at kde dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 27 Jan 2014 19:53:16 +0000
- Subject: [Bug target/59952] -march=core-avx2 should not enable RTM
- Auto-submitted: auto-generated
- References: <bug-59952-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #10 from Thiago Macieira <thiago at kde dot org> ---
(In reply to Yukhin Kirill from comment #9)
> I am checking and will get back to. I though all AVX2 parts had BMI1/2
The evidence seems to support that. I did check with a few colleagues and we
couldn't come up with a case that didn't.
We found Haswell-based Celerons that don't have them, but those don't have AVX2
either -- they don't qualify for either part of "core-avx2".