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Rename LiveRange to LiveInterval::Segment

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The Segment struct contains a single interval; multiple instances of this struct
are used to construct a live range, but the struct is not a live range by
itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun
2013-10-10 21:28:43 +00:00
parent 4afb5f560d
commit 331de11a0a
16 changed files with 369 additions and 372 deletions
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16
lib/CodeGen/PHIElimination.cpp
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@@ -318,9 +318,9 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
if (!IncomingVNI)
IncomingVNI = IncomingLI.getNextValue(MBBStartIndex,
LIS->getVNInfoAllocator());
IncomingLI.addRange(LiveRange(MBBStartIndex,
DestCopyIndex.getRegSlot(),
IncomingVNI));
IncomingLI.addSegment(LiveInterval::Segment(MBBStartIndex,
DestCopyIndex.getRegSlot(),
IncomingVNI));
}
LiveInterval &DestLI = LIS->getInterval(DestReg);
@@ -332,14 +332,14 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
// the copy instruction.
VNInfo *OrigDestVNI = DestLI.getVNInfoAt(MBBStartIndex);
assert(OrigDestVNI && "PHI destination should be live at block entry.");
DestLI.removeRange(MBBStartIndex, MBBStartIndex.getDeadSlot());
DestLI.removeSegment(MBBStartIndex, MBBStartIndex.getDeadSlot());
DestLI.createDeadDef(DestCopyIndex.getRegSlot(),
LIS->getVNInfoAllocator());
DestLI.removeValNo(OrigDestVNI);
} else {
// Otherwise, remove the region from the beginning of MBB to the copy
// instruction from DestReg's live interval.
DestLI.removeRange(MBBStartIndex, DestCopyIndex.getRegSlot());
DestLI.removeSegment(MBBStartIndex, DestCopyIndex.getRegSlot());
VNInfo *DestVNI = DestLI.getVNInfoAt(DestCopyIndex.getRegSlot());
assert(DestVNI && "PHI destination should be live at its definition.");
DestVNI->def = DestCopyIndex.getRegSlot();
@@ -460,7 +460,7 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
if (LIS) {
if (NewSrcInstr) {
LIS->InsertMachineInstrInMaps(NewSrcInstr);
LIS->addLiveRangeToEndOfBlock(IncomingReg, NewSrcInstr);
LIS->addSegmentToEndOfBlock(IncomingReg, NewSrcInstr);
}
if (!SrcUndef &&
@@ -511,8 +511,8 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
"Cannot find kill instruction");
SlotIndex LastUseIndex = LIS->getInstructionIndex(KillInst);
SrcLI.removeRange(LastUseIndex.getRegSlot(),
LIS->getMBBEndIdx(&opBlock));
SrcLI.removeSegment(LastUseIndex.getRegSlot(),
LIS->getMBBEndIdx(&opBlock));
}
}
}