[PATCH] D56082: [X86][SLP] Enable SLP vectorization for 128-bit horizontal X86 instructions (add, sub)

[Anton Afanasyev via Phabricator via llvm-commits]

anton-afanasyev created this revision.
anton-afanasyev added reviewers: RKSimon, ABataev, dtemirbulatov.
Herald added a subscriber: llvm-commits.

  Introduce option -slp-use-semi-reg to SLP vectorizer. This is switched off by          
  default and is switched on for targets with semi vector register instructions                                             
  (like packed horizontal add and sub in SSE). In addition to horizontal instrs      
  this option triggers optimizations for partial vector operations (for instance,                                           
  using low halfs of 128-bit registers xmm0 and xmm1 to multiply <2 x float> by                                             
  <2 x float>).                                                                                       
                                                                                                                
  Fixes llvm.org/PR32433


Repository:
  rL LLVM

https://reviews.llvm.org/D56082

Files:
  include/llvm/Analysis/TargetTransformInfo.h
  include/llvm/Analysis/TargetTransformInfoImpl.h
  include/llvm/CodeGen/BasicTTIImpl.h
  lib/Analysis/TargetTransformInfo.cpp
  lib/Target/X86/X86TargetTransformInfo.cpp
  lib/Target/X86/X86TargetTransformInfo.h
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  test/Transforms/SLPVectorizer/X86/addsub.ll
  test/Transforms/SLPVectorizer/X86/fptosi.ll
  test/Transforms/SLPVectorizer/X86/fptoui.ll
  test/Transforms/SLPVectorizer/X86/remark_not_all_parts.ll
  test/Transforms/SLPVectorizer/X86/reorder_phi.ll
  test/Transforms/SLPVectorizer/X86/schedule-bundle.ll
  test/Transforms/SLPVectorizer/X86/semi-vec-reg-128bit.ll
  test/Transforms/SLPVectorizer/X86/shift-lshr.ll
  test/Transforms/SLPVectorizer/X86/shift-shl.ll
  test/Transforms/SLPVectorizer/X86/sitofp.ll
  test/Transforms/SLPVectorizer/X86/tiny-tree.ll
  test/Transforms/SLPVectorizer/X86/uitofp.ll
  test/Transforms/SLPVectorizer/X86/vect_copyable_in_binops.ll

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