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More VNInfo tweaking, plus a little progress on intra-block splitting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73750 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames
2009-06-19 02:17:53 +00:00
parent 974fe5d691
commit 10382fb71d
4 changed files with 92 additions and 33 deletions
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lib/CodeGen/LiveIntervalAnalysis.cpp
+4 -2
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@@ -584,7 +584,8 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
// Replace the interval with one of a NEW value number. Note that this
// value number isn't actually defined by an instruction, weird huh? :)
LiveRange LR(Start, End, interval.getNextValue(Start, 0, false, VNInfoAllocator));
LiveRange LR(Start, End,
interval.getNextValue(mbb->getNumber(), 0, false, VNInfoAllocator));
LR.valno->setIsPHIDef(true);
DOUT << " replace range with " << LR;
interval.addRange(LR);
@@ -785,7 +786,8 @@ void LiveIntervals::handleLiveInRegister(MachineBasicBlock *MBB,
}
}
VNInfo *vni = interval.getNextValue(start, 0, false, VNInfoAllocator);
VNInfo *vni =
interval.getNextValue(MBB->getNumber(), 0, false, VNInfoAllocator);
vni->setIsPHIDef(true);
LiveRange LR(start, end, vni);