Changes in directory llvm/lib/CodeGen:
LiveIntervalAnalysis.cpp updated: 1.244 -> 1.245
---
Log message:
Only worry about intervening kill if there are more than one live ranges in the
interval.
---
Diffs of the changes: (+5 -3)
LiveIntervalAnalysis.cpp | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
Index: llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
diff -u llvm/lib/CodeGen/LiveIntervalAnalysis.cpp:1.244
llvm/lib/CodeGen/LiveIntervalAnalysis.cpp:1.245
--- llvm/lib/CodeGen/LiveIntervalAnalysis.cpp:1.244 Mon May 14 16:10:05 2007
+++ llvm/lib/CodeGen/LiveIntervalAnalysis.cpp Mon May 14 16:23:51 2007
@@ -1073,9 +1073,11 @@
// have clobbered values for this range.
if (MRegisterInfo::isPhysicalRegister(repDstReg)) {
// Unset unnecessary kills.
- for (LiveInterval::Ranges::const_iterator I = SrcInt.begin(),
- E = SrcInt.end(); I != E; ++I)
- unsetRegisterKills(I->start, I->end, repDstReg);
+ if (!DstInt.containsOneValue()) {
+ for (LiveInterval::Ranges::const_iterator I = SrcInt.begin(),
+ E = SrcInt.end(); I != E; ++I)
+ unsetRegisterKills(I->start, I->end, repDstReg);
+ }
// Update the liveintervals of sub-registers.
for (const unsigned *AS = mri_->getSubRegisters(repDstReg); *AS; ++AS)
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