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Commit 4f977517 authored by Amjad Aboud's avatar Amjad Aboud
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[X86] Generate VZEROUPPER for Skylake-avx512. 

VZEROUPPER should not be issued on Knights Landing (KNL), but on Skylake-avx512 it should be.

Differential Revision: https://reviews.llvm.org/D29874

llvm-svn: 296859
parent db04cccb
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