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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158755 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-06-19 22:50:53 +00:00
parent f54469f7fc
commit fa8becb6f9
1 changed files with 13 additions and 7 deletions
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20
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -254,8 +254,8 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
bool PHIJoin = LV->isPHIJoin(interval.reg);
if (PHIJoin) {
// A phi join register is killed at the end of the MBB and revived as a new
// valno in the killing blocks.
// A phi join register is killed at the end of the MBB and revived as a
// new valno in the killing blocks.
assert(vi.AliveBlocks.empty() && "Phi join can't pass through blocks");
DEBUG(dbgs() << " phi-join");
ValNo->setHasPHIKill(true);
@ -266,7 +266,8 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
for (SparseBitVector<>::iterator I = vi.AliveBlocks.begin(),
E = vi.AliveBlocks.end(); I != E; ++I) {
MachineBasicBlock *aliveBlock = MF->getBlockNumbered(*I);
LiveRange LR(getMBBStartIdx(aliveBlock), getMBBEndIdx(aliveBlock), ValNo);
LiveRange LR(getMBBStartIdx(aliveBlock), getMBBEndIdx(aliveBlock),
ValNo);
interval.addRange(LR);
DEBUG(dbgs() << " +" << LR);
}
@ -1254,7 +1255,8 @@ private:
Entering.insert(std::make_pair(LI, LR));
}
if (MO.isDef()) {
assert(!MO.isEarlyClobber() && "Early clobbers not allowed in bundles.");
assert(!MO.isEarlyClobber() &&
"Early clobbers not allowed in bundles.");
assert(!MO.isDead() && "Dead-defs not allowed in bundles.");
LiveRange* LR = LI->getLiveRangeContaining(MIEndIdx.getDeadSlot());
assert(LR != 0 && "Internal ranges not allowed in bundles.");
@ -1263,7 +1265,9 @@ private:
}
}
BundleRanges createBundleRanges(RangeSet& Entering, RangeSet& Internal, RangeSet& Exiting) {
BundleRanges createBundleRanges(RangeSet& Entering,
RangeSet& Internal,
RangeSet& Exiting) {
BundleRanges BR;
for (RangeSet::iterator EI = Entering.begin(), EE = Entering.end();
@ -1300,7 +1304,8 @@ private:
return; // Bail out if we don't have kill flags on the old register.
MachineInstr* NewKillMI = LIS.getInstructionFromIndex(newKillIdx);
assert(OldKillMI->killsRegister(reg) && "Old 'kill' instr isn't a kill.");
assert(!NewKillMI->killsRegister(reg) && "New kill instr is already a kill.");
assert(!NewKillMI->killsRegister(reg) &&
"New kill instr is already a kill.");
OldKillMI->clearRegisterKills(reg, &TRI);
NewKillMI->addRegisterKilled(reg, &TRI);
}
@ -1553,7 +1558,8 @@ void LiveIntervals::handleMove(MachineInstr* MI) {
HME.moveAllRangesFrom(MI, OldIndex);
}
void LiveIntervals::handleMoveIntoBundle(MachineInstr* MI, MachineInstr* BundleStart) {
void LiveIntervals::handleMoveIntoBundle(MachineInstr* MI,
MachineInstr* BundleStart) {
SlotIndex NewIndex = Indexes->getInstructionIndex(BundleStart);
HMEditor HME(*this, *MRI, *TRI, NewIndex);
HME.moveAllRangesInto(MI, BundleStart);