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Commit b5f0ec3e authored by Evan Cheng's avatar Evan Cheng
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Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's... 

Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook.

llvm-svn: 63936
parent afdf90ae
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