[PATCH] D73844: [X86] Update the haswell and broadwell scheduler information for gather instructions

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sat Feb 1 22:23:08 PST 2020


craig.topper created this revision.
Herald added subscribers: gbedwell, hiraditya.
Herald added a reviewer: andreadb.
Herald added a project: LLVM.
craig.topper added reviewers: RKSimon, spatel.

Broadwell was missing half the gather instructions. Both models
had some mixups in the resource costs and number of uops.

I've updated here based on what I think the original IACA source
says with some cross checking against the microcode.

I'm not sure about latency as the IACA source I have doesn't have
that information. So I'm using the latency from uops.info.

I plan to update Skylake models as well, but I'll do that in a
separate patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73844

Files:
  llvm/lib/Target/X86/X86SchedBroadwell.td
  llvm/lib/Target/X86/X86SchedHaswell.td
  llvm/test/tools/llvm-mca/X86/Broadwell/resources-avx2.s
  llvm/test/tools/llvm-mca/X86/Haswell/resources-avx2.s

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