[all-commits] [llvm/llvm-project] 7785bd: [X86] Fix bdver2 128-bit ALU/logic/shift throughputs

Simon Pilgrim via All-commits all-commits at lists.llvm.org
Sat Sep 10 08:24:17 PDT 2022


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7785bd34e744a9da515b7e0b5dda10b423ba03fe
      https://github.com/llvm/llvm-project/commit/7785bd34e744a9da515b7e0b5dda10b423ba03fe
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-09-10 (Sat, 10 Sep 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleBdVer2.td
    M llvm/test/tools/llvm-mca/X86/BdVer2/clear-super-register-2.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/dependency-breaking-pcmpeq.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/dependency-breaking-pcmpgt.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/dependent-pmuld-paddd.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/one-idioms.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/pipes-fpu.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-3dnow.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-avx1.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-mmx.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-sse1.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-sse2.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-sse41.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-sse42.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-ssse3.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/resources-xop.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/vec-logic-read-after-ld-2.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/zero-idioms-avx-256.s
    M llvm/test/tools/llvm-mca/X86/BdVer2/zero-idioms.s

  Log Message:
  -----------
  [X86] Fix bdver2 128-bit ALU/logic/shift throughputs

Noticed while trying to get vector shifts costs fixed using the script from D103695 - all of these are full-rate but the throughput costs were weirdly high for bdver2

Matches AMD 15h SoG, Agner and instlatx64




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