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Revert r68073. It's causing a failure in the Apple-style builds.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68092 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2009-03-31 08:26:26 +00:00
parent c4ef551192
commit 8fe00540fc
6 changed files with 96 additions and 47 deletions
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lib/CodeGen/VirtRegMap.cpp
+22 -1
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@@ -188,7 +188,7 @@ void VirtRegMap::RemoveMachineInstrFromMaps(MachineInstr *MI) {
if (MF->getFrameInfo()->isFixedObjectIndex(FI))
continue;
// This stack reference was produced by instruction selection and
// is not a spill
// is not a spill.
if (FI < LowSpillSlot)
continue;
assert((unsigned)FI-LowSpillSlot < SpillSlotToUsesMap.size()
@@ -201,6 +201,27 @@ void VirtRegMap::RemoveMachineInstrFromMaps(MachineInstr *MI) {
EmergencySpillMap.erase(MI);
}
bool VirtRegMap::OnlyUseOfStackSlot(const MachineInstr *MI) const {
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &MO = MI->getOperand(i);
if (!MO.isFI())
continue;
int FI = MO.getIndex();
if (MF->getFrameInfo()->isFixedObjectIndex(FI))
continue;
// This stack reference was produced by instruction selection and
// is not a spill.
if (FI < LowSpillSlot)
continue;
assert((unsigned)FI-LowSpillSlot < SpillSlotToUsesMap.size()
&& "Invalid spill slot");
if (SpillSlotToUsesMap[FI - LowSpillSlot].size() != 1)
return false;
}
return true;
}
void VirtRegMap::print(std::ostream &OS, const Module* M) const {
const TargetRegisterInfo* TRI = MF->getTarget().getRegisterInfo();