Latency and throughput of LOCK INC/DEC/NEG/NOT is always 19cy.
Number of uOPs is still 1.
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[X86][BtVer2] Fix latency and throughput of atomic INC/DEC/NEG/NOT. ClosedPublic Authored by andreadb on Aug 20 2019, 4:44 AM.
Details Summary Latency and throughput of LOCK INC/DEC/NEG/NOT is always 19cy.
Diff Detail
Event TimelineThis revision is now accepted and ready to land.Aug 20 2019, 7:02 AM Closed by commit rG16111d3795c7: [X86][BtVer2] Fix latency and throughput of atomic INC/DEC/NEG/NOT. (authored by andreadb). · Explain WhyAug 20 2019, 7:33 AM This revision was automatically updated to reflect the committed changes.
Revision Contents
Diff 216142 llvm/lib/Target/X86/X86ScheduleBtVer2.td
llvm/test/tools/llvm-mca/X86/BtVer2/resources-x86_64.s
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