release/18.x: [X86] Enable EVEX512 when host CPU has AVX512 (#90479) #90545
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@topperc What do you think about merging this PR to the release branch? |
This is used when -march=native run on an unknown CPU to old version of LLVM. (cherry picked from commit b329179)
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Hi @nikic (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR. |
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Backport b329179
Requested by: @nikic