[PATCH] D24456: AVX-512: Fix for PR28175 - Scalar code optimization.

[Elena Demikhovsky via llvm-commits]

delena created this revision.
delena added a reviewer: igorb.
delena added a subscriber: llvm-commits.
delena set the repository for this revision to rL LLVM.

Optimized (truncate (assertzext x) to i1) and anyext i1 to i8/16/32.
Optimization of this patterns is a one more step towards i1 optimization on AVX-512.

Repository:
  rL LLVM

https://reviews.llvm.org/D24456

Files:
  ../lib/Target/X86/X86InstrAVX512.td
  ../lib/Target/X86/X86InstrFragmentsSIMD.td
  ../test/CodeGen/X86/avx512-fsel.ll
  ../test/CodeGen/X86/avx512-i1test.ll
  ../test/CodeGen/X86/fast-isel-select-cmov.ll
  ../test/CodeGen/X86/masked_gather_scatter.ll
  ../test/CodeGen/X86/pr28173.ll
  ../test/CodeGen/X86/xaluo.ll

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