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MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const. 

llvm-svn: 70408
This commit is contained in:
Jakob Stoklund Olesen 2009-04-29 20:57:16 +00:00
parent e55f8660be
commit 1971dc7007
2 changed files with 6 additions and 4 deletions
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4
llvm/include/llvm/CodeGen/MachineInstr.h
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@ -245,12 +245,12 @@ public:
/// check if the register def is tied to a source operand, due to either /// check if the register def is tied to a source operand, due to either
/// two-address elimination or inline assembly constraints. Returns the /// two-address elimination or inline assembly constraints. Returns the
/// first tied use operand index by reference is UseOpIdx is not null. /// first tied use operand index by reference is UseOpIdx is not null.
bool isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx = 0); bool isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx = 0) const;
/// isRegTiedToDefOperand - Return true if the use operand of the specified /// isRegTiedToDefOperand - Return true if the use operand of the specified
/// index is tied to an def operand. It also returns the def operand index by /// index is tied to an def operand. It also returns the def operand index by
/// reference if DefOpIdx is not null. /// reference if DefOpIdx is not null.
bool isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx = 0); bool isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx = 0) const;
/// copyKillDeadInfo - Copies kill / dead operand properties from MI. /// copyKillDeadInfo - Copies kill / dead operand properties from MI.
/// ///

6
llvm/lib/CodeGen/MachineInstr.cpp
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@ -709,7 +709,8 @@ int MachineInstr::findFirstPredOperandIdx() const {
/// check if the register def is tied to a source operand, due to either /// check if the register def is tied to a source operand, due to either
/// two-address elimination or inline assembly constraints. Returns the /// two-address elimination or inline assembly constraints. Returns the
/// first tied use operand index by reference is UseOpIdx is not null. /// first tied use operand index by reference is UseOpIdx is not null.
bool MachineInstr::isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx){ bool MachineInstr::
isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx) const {
if (getOpcode() == TargetInstrInfo::INLINEASM) { if (getOpcode() == TargetInstrInfo::INLINEASM) {
assert(DefOpIdx >= 2); assert(DefOpIdx >= 2);
const MachineOperand &MO = getOperand(DefOpIdx); const MachineOperand &MO = getOperand(DefOpIdx);
@ -759,7 +760,8 @@ bool MachineInstr::isRegTiedToUseOperand(unsigned DefOpIdx, unsigned *UseOpIdx){
/// isRegTiedToDefOperand - Return true if the operand of the specified index /// isRegTiedToDefOperand - Return true if the operand of the specified index
/// is a register use and it is tied to an def operand. It also returns the def /// is a register use and it is tied to an def operand. It also returns the def
/// operand index by reference. /// operand index by reference.
bool MachineInstr::isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx){ bool MachineInstr::
isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const {
if (getOpcode() == TargetInstrInfo::INLINEASM) { if (getOpcode() == TargetInstrInfo::INLINEASM) {
const MachineOperand &MO = getOperand(UseOpIdx); const MachineOperand &MO = getOperand(UseOpIdx);
if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0)