[PATCH] D41895: [X86] Another attempt at support prefer-vector-width function attribute

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 130269.
craig.topper added a comment.

Rebase to fix the outdated trunc code. Add helper for splitting and extending v16i1 to v16i16/v16i8


https://reviews.llvm.org/D41895

Files:
  lib/Target/X86/X86.td
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86Subtarget.cpp
  lib/Target/X86/X86Subtarget.h
  lib/Target/X86/X86TargetMachine.cpp
  lib/Target/X86/X86TargetTransformInfo.cpp
  test/CodeGen/X86/prefer-avx256-lzcnt.ll
  test/CodeGen/X86/prefer-avx256-mask-extend.ll
  test/CodeGen/X86/prefer-avx256-mask-shuffle.ll
  test/CodeGen/X86/prefer-avx256-popcnt.ll
  test/CodeGen/X86/prefer-avx256-shift.ll
  test/CodeGen/X86/prefer-avx256-trunc.ll
  test/CodeGen/X86/prefer-avx256-wide-mul.ll
  test/Transforms/LoopVectorize/X86/avx512.ll

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