Handle all live physreg defs in the same place.
SelectionDAG has 4 different ways of passing physreg defs to users.
Collect all of the uses at the same time, and pass all of them to
MI->setPhysRegsDeadExcept() to mark the remaining defs dead.
The setPhysRegsDeadExcept() function will soon add the required
implicit-defs to instructions with register mask operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149708 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 7cf282c..f04921b 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -1799,7 +1799,7 @@
MachineOperand &MO = getOperand(i);
if (!MO.isReg() || !MO.isDef()) continue;
unsigned Reg = MO.getReg();
- if (Reg == 0) continue;
+ if (!TargetRegisterInfo::isPhysicalRegister(Reg)) continue;
bool Dead = true;
for (SmallVectorImpl<unsigned>::const_iterator I = UsedRegs.begin(),
E = UsedRegs.end(); I != E; ++I)