///
bool EliminatePHINodes(MachineFunction &MF, MachineBasicBlock &MBB);
void LowerPHINode(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator AfterPHIsIt);
+ MachineBasicBlock::iterator LastPHIIt);
/// analyzePHINodes - Gather information about the PHI nodes in
/// here. In particular, we want to map the number of uses of a virtual
// Get an iterator to the first instruction after the last PHI node (this may
// also be the end of the basic block).
- MachineBasicBlock::iterator AfterPHIsIt = MBB.SkipPHIsAndLabels(MBB.begin());
+ MachineBasicBlock::iterator LastPHIIt =
+ prior(MBB.SkipPHIsAndLabels(MBB.begin()));
while (MBB.front().isPHI())
- LowerPHINode(MBB, AfterPHIsIt);
+ LowerPHINode(MBB, LastPHIIt);
return true;
}
/// LowerPHINode - Lower the PHI node at the top of the specified block,
///
void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator AfterPHIsIt) {
+ MachineBasicBlock::iterator LastPHIIt) {
++NumLowered;
+
+ MachineBasicBlock::iterator AfterPHIsIt = next(LastPHIIt);
+
// Unlink the PHI node from the basic block, but don't delete the PHI yet.
MachineInstr *MPhi = MBB.remove(MBB.begin());