SmallVector<std::pair<unsigned, VNInfo*>, 8> WorkList;
WorkList.push_back(std::make_pair(UseReg, UseVNI));
+ LiveInterval &OrigLI = LIS.getInterval(Original);
do {
unsigned Reg;
VNInfo *VNI;
// Trace through PHI-defs created by live range splitting.
if (VNI->isPHIDef()) {
- // Stop at original PHIs. We don't know the value at the predecessors.
- if (VNI->def == OrigVNI->def) {
+ // Stop at original PHIs. We don't know the value at the
+ // predecessors. Look up the VNInfo for the current definition
+ // in OrigLI, to properly determine whether or not this phi was
+ // added by splitting.
+ if (VNI->def == OrigLI.getVNInfoAt(VNI->def)->def) {
DEBUG(dbgs() << "orig phi value\n");
SVI->second.DefByOrigPHI = true;
SVI->second.AllDefsAreReloads = false;
// Separate all values dominated by OrigVNI into PHIs and non-PHIs.
SmallVector<VNInfo*, 8> PHIs, NonPHIs;
LiveInterval &LI = LIS.getInterval(Reg);
- LiveInterval &OrigLI = LIS.getInterval(Original);
for (LiveInterval::vni_iterator VI = LI.vni_begin(), VE = LI.vni_end();
VI != VE; ++VI) {