[PATCH] D46229: [X86][AVX] Tag VPMOVSX/VPMOVZX ymm instructions as WriteShuffle256.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: craig.topper, GGanesh, andreadb.
Herald added a subscriber: gbedwell.

These are more like cross-lane shuffles than regular shuffles - we already do this for AVX512 equivalents.

@gganesh The Znver1 cases needed a little tweaking (typos in the instregex and missing load fold cases) - please can you take a look? Agner didn't have good numbers, but it seems to match what instlatx64 reports.


Repository:
  rL LLVM

https://reviews.llvm.org/D46229

Files:
  lib/Target/X86/X86InstrSSE.td
  lib/Target/X86/X86SchedBroadwell.td
  lib/Target/X86/X86SchedHaswell.td
  lib/Target/X86/X86SchedSkylakeClient.td
  lib/Target/X86/X86SchedSkylakeServer.td
  lib/Target/X86/X86ScheduleZnver1.td
  test/CodeGen/X86/avx2-schedule.ll
  test/tools/llvm-mca/X86/Znver1/resources-avx2.s

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