Fix bugs found with recent addition of assertions in
MRegisterInfo::is{Physical,Virtual}Register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11849 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 4f06c67..e8225e2 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -168,7 +168,7 @@
// rewrite all used operands
for (unsigned i = 0, e = mii->getNumOperands(); i != e; ++i) {
MachineOperand& op = mii->getOperand(i);
- if (op.isRegister() && op.isUse() &&
+ if (op.isRegister() && op.getReg() && op.isUse() &&
MRegisterInfo::isVirtualRegister(op.getReg())) {
unsigned physReg = vrm_.getPhys(op.getReg());
handleUse(mbb, mii, op.getReg(), physReg);
@@ -187,7 +187,7 @@
// uses so don't check for those here)
for (unsigned i = 0, e = mii->getNumOperands(); i != e; ++i) {
MachineOperand& op = mii->getOperand(i);
- if (op.isRegister() && !op.isUse())
+ if (op.isRegister() && op.getReg() && !op.isUse())
if (MRegisterInfo::isPhysicalRegister(op.getReg()))
vacatePhysReg(mbb, mii, op.getReg());
else {