Author: evancheng
Date: Thu Jan 10 02:22:10 2008
New Revision: 45830
URL: http://llvm.org/viewvc/llvm-project?rev=45830&view=rev
Log:
Simplify some code.
Modified:
llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=45830&r1=45829&r2=45830&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Thu Jan 10 02:22:10 2008
@@ -309,14 +309,8 @@
// are actually two values in the live interval. Because of this we
// need to take the LiveRegion that defines this register and split it
// into two values.
- MachineRegisterInfo& MRI = mbb->getParent()->getRegInfo();
- unsigned lowIndex = ~0U;
- for (MachineRegisterInfo::def_iterator DI = MRI.def_begin(interval.reg),
- DE = MRI.def_end(); DI != DE; ++DI)
- if (getInstructionIndex(&*DI) < lowIndex)
- lowIndex = getInstructionIndex(&*DI);
-
- unsigned DefIndex = getDefIndex(lowIndex);
+ assert(interval.containsOneValue());
+ unsigned DefIndex = getDefIndex(interval.getValNumInfo(0)->def);
unsigned RedefIndex = getDefIndex(MIIdx);
const LiveRange *OldLR = interval.getLiveRangeContaining(RedefIndex-1);
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