[PATCH] D79045: [X86] Don't return true from isTruncateFree for vectors

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 260949.
craig.topper added a comment.

Enabled a DAG combine post type legalization with a LegalTypes check to avoid a regression shift-combine.ll


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79045/new/

https://reviews.llvm.org/D79045

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/cast.ll
  llvm/test/Analysis/CostModel/X86/min-legal-vector-width.ll
  llvm/test/Analysis/CostModel/X86/trunc.ll
  llvm/test/CodeGen/X86/shift-combine.ll

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