[PATCH] D73475: [X86] Make sure we do not clobber RBX with mwaitx when used as a base pointer.

[pierre gousseau via Phabricator via llvm-commits]

pgousseau updated this revision to Diff 287013.
pgousseau added a comment.

Updated the patch to handle the case described in PR42064 where a separate basic block demands the use of a base pointer.
In that case we do the codegen of mwaitx during custom insertion.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73475/new/

https://reviews.llvm.org/D73475

Files:
  llvm/lib/Target/X86/X86ExpandPseudo.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/lib/Target/X86/X86InstrCompiler.td
  llvm/lib/Target/X86/X86InstrInfo.td
  llvm/test/CodeGen/X86/base-pointer-and-mwaitx.ll

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