Revert changes. Will implement this using a different set of primitives
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index ecd22ab..991be42 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -146,17 +146,11 @@
LV.addVirtualRegisterDead(regB, &*mbbi, prevMi);
// replace all occurences of regB with regA
- // and mark all uses and defs of regA as def&use
for (unsigned i = 1; i < mi->getNumOperands(); ++i) {
- MachineOperand& op = mi->getOperand(i);
- if (op.isRegister()) {
- if (op.getReg() == regB)
- mi->SetMachineOperandReg(i, regA);
- if (op.getReg() == regA)
- op.setDef().setUse();
- }
+ if (mi->getOperand(i).isRegister() &&
+ mi->getOperand(i).getReg() == regB)
+ mi->SetMachineOperandReg(i, regA);
}
-
DEBUG(std::cerr << "\t\tmodified original to: ";
mi->print(std::cerr, TM));
assert(mi->getOperand(0).getAllocatedRegNum() ==