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Delete dead code. 

llvm-svn: 158827
This commit is contained in:
Jakob Stoklund Olesen 2012-06-20 16:38:50 +00:00
parent 6c19063a1c
commit d702e8fddf
1 changed files with 0 additions and 48 deletions
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48
llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -1224,54 +1224,6 @@ private:
}
}
// Collect IntRangePairs for all operands of MI that may need fixing.
void collectRangesInBundle(MachineInstr* MI, RangeSet& Entering,
RangeSet& Exiting, SlotIndex MIStartIdx,
SlotIndex MIEndIdx) {
for (MachineInstr::mop_iterator MOI = MI->operands_begin(),
MOE = MI->operands_end();
MOI != MOE; ++MOI) {
const MachineOperand& MO = *MOI;
assert(!MO.isRegMask() && "Can't have RegMasks in bundles.");
if (!MO.isReg() || MO.getReg() == 0)
continue;
unsigned Reg = MO.getReg();
// TODO: Currently we're skipping uses that are reserved or have no
// interval, but we're not updating their kills. This should be
// fixed.
if (TargetRegisterInfo::isPhysicalRegister(Reg) && LIS.isReserved(Reg))
continue;
if (TargetRegisterInfo::isPhysicalRegister(Reg) && LIS.trackingRegUnits())
for (MCRegUnitIterator Units(Reg, &TRI); Units.isValid(); ++Units)
collectRangesInBundle(MO, &LIS.getRegUnit(*Units),
Entering, Exiting, MIStartIdx, MIEndIdx);
else if (LIS.hasInterval(Reg))
collectRangesInBundle(MO, &LIS.getInterval(Reg),
Entering, Exiting, MIStartIdx, MIEndIdx);
}
}
void collectRangesInBundle(const MachineOperand &MO, LiveInterval *LI,
RangeSet &Entering, RangeSet &Exiting,
SlotIndex MIStartIdx, SlotIndex MIEndIdx) {
if (MO.readsReg()) {
LiveRange* LR = LI->getLiveRangeContaining(MIStartIdx);
if (LR != 0)
Entering.insert(std::make_pair(LI, LR));
}
if (MO.isDef()) {
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.");
Exiting.insert(std::make_pair(LI, LR));
}
}
BundleRanges createBundleRanges(RangeSet& Entering,
RangeSet& Internal,
RangeSet& Exiting) {