[PATCH] D60789: [x86] try to widen 'shl' as part of LEA formation

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 195552.
spatel marked 2 inline comments as done.
spatel added a comment.

Patch updated:

1. Added check to make sure that IndexReg has not already been set.
2. Fixed node insertion/deletion/rauw to match existing code patterns in foldMask*() helpers. Dead node removal should be handled by PostprocessISelDAG(), so there's no need to do that explicitly.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60789/new/

https://reviews.llvm.org/D60789

Files:
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/test/CodeGen/X86/lea-dagdag.ll

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