Changes in directory llvm/lib/Target:
TargetInstrInfo.cpp updated: 1.21 -> 1.22
---
Log message:
commuteInstruction should propagate kill / dead info.
---
Diffs of the changes: (+10 -0)
TargetInstrInfo.cpp | 10 ++++++++++
1 files changed, 10 insertions(+)
Index: llvm/lib/Target/TargetInstrInfo.cpp
diff -u llvm/lib/Target/TargetInstrInfo.cpp:1.21
llvm/lib/Target/TargetInstrInfo.cpp:1.22
--- llvm/lib/Target/TargetInstrInfo.cpp:1.21 Wed Nov 1 17:14:15 2006
+++ llvm/lib/Target/TargetInstrInfo.cpp Wed Nov 15 14:56:03 2006
@@ -60,7 +60,17 @@
"This only knows how to commute register operands so far");
unsigned Reg1 = MI->getOperand(1).getReg();
unsigned Reg2 = MI->getOperand(2).getReg();
+ bool Reg1IsKill = MI->getOperand(1).isKill();
+ bool Reg2IsKill = MI->getOperand(2).isKill();
MI->getOperand(2).setReg(Reg1);
MI->getOperand(1).setReg(Reg2);
+ if (Reg1IsKill)
+ MI->getOperand(2).setIsKill();
+ else
+ MI->getOperand(2).unsetIsKill();
+ if (Reg2IsKill)
+ MI->getOperand(1).setIsKill();
+ else
+ MI->getOperand(1).unsetIsKill();
return MI;
}
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