[PATCH] D41794: [X86] Improve AVX1 shuffle lowering for v8f32 shuffles where the low half comes from V1 and the high half comes from V2 and the halves do the same operation

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jul 31 11:05:59 PDT 2018


craig.topper updated this revision to Diff 158332.
craig.topper added a comment.

Address review comments. Will investigate the test regression


Repository:
  rL LLVM

https://reviews.llvm.org/D41794

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/prefer-avx256-mask-shuffle.ll
  test/CodeGen/X86/vector-shuffle-256-v16.ll
  test/CodeGen/X86/vector-shuffle-256-v32.ll
  test/CodeGen/X86/vector-shuffle-256-v4.ll
  test/CodeGen/X86/vector-shuffle-256-v8.ll
  test/CodeGen/X86/vector-shuffle-512-v64.ll
  test/CodeGen/X86/vector-shuffle-avx512.ll
  test/CodeGen/X86/vector-shuffle-combining.ll

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