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Detect and handle COPY in many places.

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This code is transitional, it will soon be possible to eliminate
isExtractSubreg, isInsertSubreg, and isMoveInstr in most places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107547 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-07-03 00:04:37 +00:00
parent 43b8fd728b
commit 273f7e4299
10 changed files with 73 additions and 40 deletions
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10
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -321,7 +321,7 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (mi->isExtractSubreg() || mi->isInsertSubreg() || mi->isSubregToReg() ||
if (mi->isCopyLike() ||
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg)) {
CopyMI = mi;
@ -457,8 +457,8 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
// A re-def may be a copy. e.g. %reg1030:6<def> = VMOVD %reg1026, ...
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (PartReDef &&
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg))
if (PartReDef && (mi->isCopyLike() ||
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg)))
OldValNo->setCopy(&*mi);
// Add the new live interval which replaces the range for the input copy.
@ -488,7 +488,7 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
VNInfo *ValNo;
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (mi->isExtractSubreg() || mi->isInsertSubreg() || mi->isSubregToReg()||
if (mi->isCopyLike() ||
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg))
CopyMI = mi;
ValNo = interval.getNextValue(defIndex, CopyMI, true, VNInfoAllocator);
@ -605,7 +605,7 @@ void LiveIntervals::handleRegisterDef(MachineBasicBlock *MBB,
else if (allocatableRegs_[MO.getReg()]) {
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (MI->isExtractSubreg() || MI->isInsertSubreg() || MI->isSubregToReg() ||
if (MI->isCopyLike() ||
tii_->isMoveInstr(*MI, SrcReg, DstReg, SrcSubReg, DstSubReg))
CopyMI = MI;
handlePhysicalRegisterDef(MBB, MI, MIIdx, MO,