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Commit 7a265d83 authored by Evan Cheng's avatar Evan Cheng
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- Add LiveVariables::replaceKillInstruction. This does a subset of... 

- Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers.
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.

llvm-svn: 53061
parent c939f45f
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