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When sinking an insn in InstCombine bring its debug

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info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65910 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2009-03-03 01:09:07 +00:00
parent cd11991203
commit bd8e650876
3 changed files with 31 additions and 2 deletions
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include/llvm/Transforms/Utils/BasicBlockUtils.h
+5
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@@ -60,6 +60,11 @@ void ReplaceInstWithInst(BasicBlock::InstListType &BIL,
//
void ReplaceInstWithInst(Instruction *From, Instruction *To);
/// CopyPrecedingStopPoint - If I is immediately preceded by a StopPoint,
/// make a copy of the stoppoint before InsertPos (presumably before copying
/// or moving I).
void CopyPrecedingStopPoint(Instruction *I, BasicBlock::iterator InsertPos);
/// FindAvailableLoadedValue - Scan the ScanBB block backwards (starting at the
/// instruction before ScanFrom) checking to see if we have the value at the
/// memory address *Ptr locally available within a small number of instructions.