[PATCH] D84479: [X86] Detect if EFLAGs is live across XBEGIN pseudo instruction. Add it as livein to the basic blocks created when expanding the pseudo

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 280539.
craig.topper added a comment.

Refactor code to just return false when we find a def. Then we don't have to check explicitly for end of the block. If we fall out of the loop then we must have reached the end of the block.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84479/new/

https://reviews.llvm.org/D84479

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/pr46827.ll

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