[PATCH] D44428: [X86][SSE] Treat (V)MOVAPD/(V)MOVUPD + (V)MOVAPS/(V)MOVUPS reg-reg instructions as moves not shuffles

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Mar 13 07:42:16 PDT 2018


RKSimon created this revision.
RKSimon added reviewers: craig.topper, gadi.haber, andreadb, spatel.

Oddly the (V)MOVAPDrr/(V)MOVUPDrr and (V)MOVAPSrr/(V)MOVUPSrr instructions were classed as WriteFShuffle.

This patch changes the class to WriteMove, this matches what we already do for (V)MOVDQArr/(V)MOVDQUrr.

Found by llvm-mca


Repository:
  rL LLVM

https://reviews.llvm.org/D44428

Files:
  lib/Target/X86/X86InstrSSE.td
  test/CodeGen/X86/avx-schedule.ll
  test/CodeGen/X86/sha-schedule.ll
  test/CodeGen/X86/sse-schedule.ll
  test/CodeGen/X86/sse2-schedule.ll
  test/CodeGen/X86/sse41-schedule.ll

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