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[NFC] add/modify wrapper function for findRegisterDefOperand().

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llvm-svn: 354438
This commit is contained in:
Chen Zheng 2019-02-20 07:01:04 +00:00
parent e9dc12c589
commit 0764d924e2
4 changed files with 17 additions and 6 deletions
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16
include/llvm/CodeGen/MachineInstr.h
View File

@ -1199,12 +1199,22 @@ public:
/// Wrapper for findRegisterDefOperandIdx, it returns
/// a pointer to the MachineOperand rather than an index.
MachineOperand *findRegisterDefOperand(unsigned Reg, bool isDead = false,
const TargetRegisterInfo *TRI = nullptr) {
int Idx = findRegisterDefOperandIdx(Reg, isDead, false, TRI);
MachineOperand *
findRegisterDefOperand(unsigned Reg, bool isDead = false,
bool Overlap = false,
const TargetRegisterInfo *TRI = nullptr) {
int Idx = findRegisterDefOperandIdx(Reg, isDead, Overlap, TRI);
return (Idx == -1) ? nullptr : &getOperand(Idx);
}
const MachineOperand *
findRegisterDefOperand(unsigned Reg, bool isDead = false,
bool Overlap = false,
const TargetRegisterInfo *TRI = nullptr) const {
return const_cast<MachineInstr *>(this)->findRegisterDefOperand(
Reg, isDead, Overlap, TRI);
}
/// Find the index of the first operand in the
/// operand list that is used to represent the predicate. It returns -1 if
/// none is found.

2
lib/CodeGen/LiveVariables.cpp
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@ -400,7 +400,7 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) {
true/*IsImp*/, true/*IsKill*/));
else {
MachineOperand *MO =
LastRefOrPartRef->findRegisterDefOperand(Reg, false, TRI);
LastRefOrPartRef->findRegisterDefOperand(Reg, false, false, TRI);
bool NeedEC = MO->isEarlyClobber() && MO->getReg() != Reg;
// If the last reference is the last def, then it's not used at all.
// That is, unless we are currently processing the last reference itself.

2
lib/CodeGen/MachineInstr.cpp
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@ -1917,7 +1917,7 @@ void MachineInstr::setRegisterDefReadUndef(unsigned Reg, bool IsUndef) {
void MachineInstr::addRegisterDefined(unsigned Reg,
const TargetRegisterInfo *RegInfo) {
if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
MachineOperand *MO = findRegisterDefOperand(Reg, false, RegInfo);
MachineOperand *MO = findRegisterDefOperand(Reg, false, false, RegInfo);
if (MO)
return;
} else {

3
lib/CodeGen/SelectionDAG/InstrEmitter.cpp
View File

@ -1140,7 +1140,8 @@ EmitSpecialNode(SDNode *Node, bool IsClone, bool IsCloned,
// then remove the early-clobber flag.
for (unsigned Reg : ECRegs) {
if (MIB->readsRegister(Reg, TRI)) {
MachineOperand *MO = MIB->findRegisterDefOperand(Reg, false, TRI);
MachineOperand *MO =
MIB->findRegisterDefOperand(Reg, false, false, TRI);
assert(MO && "No def operand for clobbered register?");
MO->setIsEarlyClobber(false);
}