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Add support for regmask slots to HMEditor. Also fixes a comment error.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150840 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames 2012-02-17 21:29:41 +00:00
parent d9165eb02f
commit fbc8dd306a
1 changed files with 17 additions and 3 deletions
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20
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -1069,7 +1069,6 @@ public:
assert(intervalRangesSane(li) && "Broke live interval moving use.");
}
// Returns the new
void moveUseUp(SlotIndex oldIdx, LiveRange& lr, LiveInterval& li) {
bool liveThrough = lr.end > oldIdx.getRegSlot();
if (liveThrough)
@ -1098,7 +1097,7 @@ public:
}
// Update intervals for all operands of mi from oldIndex to newIndex.
void moveAllOperands(MachineInstr* mi, SlotIndex oldIdx) {
void moveAllOperandsFrom(MachineInstr* mi, SlotIndex oldIdx) {
// Figure out the direction we're moving.
bool movingUp = newIdx < oldIdx;
@ -1109,6 +1108,11 @@ public:
mopItr != mopEnd; ++mopItr) {
const MachineOperand& mop = *mopItr;
if (mop.isRegMask()) {
updateRegMaskSlots(oldIdx);
continue;
}
if (!mop.isReg() || mop.getReg() == 0)
continue;
@ -1249,6 +1253,16 @@ private:
moveUseDown(oldIdx, *lr, li, mbb);
}
}
void updateRegMaskSlots(SlotIndex oldIdx) {
SmallVectorImpl<SlotIndex>::iterator rmItr =
std::lower_bound(lis.RegMaskSlots.begin(), lis.RegMaskSlots.end(),
oldIdx);
assert(*rmItr == oldIdx && "No RegMask at oldIdx.");
*rmItr = newIdx;
assert(*prior(rmItr) < *rmItr && *rmItr < *next(rmItr) &&
"RegSlots out of order. Did you move one call across another?");
}
};
void LiveIntervals::handleMove(MachineInstr* mi) {
@ -1263,5 +1277,5 @@ void LiveIntervals::handleMove(MachineInstr* mi) {
assert(!mi->isBundled() && "Can't handle bundled instructions yet.");
HMEditor hme(*this, newIndex);
hme.moveAllOperands(mi, oldIndex);
hme.moveAllOperandsFrom(mi, oldIndex);
}