diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/StrongPHIElimination.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp index 4762cf37f6..9519e7c9d7 100644 --- a/lib/CodeGen/StrongPHIElimination.cpp +++ b/lib/CodeGen/StrongPHIElimination.cpp @@ -357,10 +357,11 @@ void StrongPHIElimination::processPHIUnion(MachineInstr* Inst, // Insert copies for child for (int i = Inst->getNumOperands() - 1; i >= 2; i-=2) { if (Inst->getOperand(i-1).getReg() == child->getReg()) { - unsigned SrcReg = Inst->getOperand(i-1).getReg(); + unsigned SrcReg = child->getReg(); MachineBasicBlock* From = Inst->getOperand(i).getMBB(); Waiting[From].push_back(std::make_pair(SrcReg, DestReg)); + PHIUnion.erase(SrcReg); } } @@ -369,10 +370,11 @@ void StrongPHIElimination::processPHIUnion(MachineInstr* Inst, // Insert copies for parent for (int i = Inst->getNumOperands() - 1; i >= 2; i-=2) { if (Inst->getOperand(i-1).getReg() == DFNode->getReg()) { - unsigned SrcReg = Inst->getOperand(i-1).getReg(); + unsigned SrcReg = DFNode->getReg(); MachineBasicBlock* From = Inst->getOperand(i).getMBB(); Waiting[From].push_back(std::make_pair(SrcReg, DestReg)); + PHIUnion.erase(SrcReg); } } } @@ -380,10 +382,11 @@ void StrongPHIElimination::processPHIUnion(MachineInstr* Inst, // Insert copies for parent for (int i = Inst->getNumOperands() - 1; i >= 2; i-=2) { if (Inst->getOperand(i-1).getReg() == DFNode->getReg()) { - unsigned SrcReg = Inst->getOperand(i-1).getReg(); + unsigned SrcReg = DFNode->getReg(); MachineBasicBlock* From = Inst->getOperand(i).getMBB(); Waiting[From].push_back(std::make_pair(SrcReg, DestReg)); + PHIUnion.erase(SrcReg); } } } |