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Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
-rw-r--r--lib/CodeGen/MachineInstr.cpp10
1 files changed, 4 insertions, 6 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 385fbb5592..aa9ea61ace 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -1326,7 +1326,7 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
if (StartOp != 0) OS << ", ";
getOperand(StartOp).print(OS, TM);
unsigned Reg = getOperand(StartOp).getReg();
- if (Reg && TargetRegisterInfo::isVirtualRegister(Reg))
+ if (TargetRegisterInfo::isVirtualRegister(Reg))
VirtRegs.push_back(Reg);
}
@@ -1360,8 +1360,7 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
for (unsigned i = StartOp, e = getNumOperands(); i != e; ++i) {
const MachineOperand &MO = getOperand(i);
- if (MO.isReg() && MO.getReg() &&
- TargetRegisterInfo::isVirtualRegister(MO.getReg()))
+ if (MO.isReg() && TargetRegisterInfo::isVirtualRegister(MO.getReg()))
VirtRegs.push_back(MO.getReg());
// Omit call-clobbered registers which aren't used anywhere. This makes
@@ -1371,7 +1370,7 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
if (MF && getDesc().isCall() &&
MO.isReg() && MO.isImplicit() && MO.isDef()) {
unsigned Reg = MO.getReg();
- if (Reg != 0 && TargetRegisterInfo::isPhysicalRegister(Reg)) {
+ if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
const MachineRegisterInfo &MRI = MF->getRegInfo();
if (MRI.use_empty(Reg) && !MRI.isLiveOut(Reg)) {
bool HasAliasLive = false;
@@ -1620,8 +1619,7 @@ MachineInstrExpressionTrait::getHashValue(const MachineInstr* const &MI) {
switch (MO.getType()) {
default: break;
case MachineOperand::MO_Register:
- if (MO.isDef() && MO.getReg() &&
- TargetRegisterInfo::isVirtualRegister(MO.getReg()))
+ if (MO.isDef() && TargetRegisterInfo::isVirtualRegister(MO.getReg()))
continue; // Skip virtual register defs.
Key |= MO.getReg();
break;