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[Bug target/82990] Add -mprefer-vzeroupper
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 14 Nov 2017 17:23:28 +0000
- Subject: [Bug target/82990] Add -mprefer-vzeroupper
- Auto-submitted: auto-generated
- References: <bug-82990-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82990
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
We would like -mprefer-vzeroupper default to on and -mtune=knl should
override it.