[PATCH] D51553: [DAGCombiner][x86] add transform/hook to load a scalar directly for use in a vector binop

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 269880.
spatel added a comment.

Rebased to apply cleanly to current master, but the test diffs remain unchanged. We are still creating vector ops that are too wide.

This seems easier to implement in vector-combine now that we have it. We will need to make sure that we are not fighting the recently added scalarization transforms.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D51553/new/

https://reviews.llvm.org/D51553

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/test/CodeGen/X86/load-scalar-as-vector.ll

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