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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70408 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2009-04-29 20:57:16 +00:00
parent 36b8e53fe0
commit ce9be2cf5d
2 changed files with 6 additions and 4 deletions
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4
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
/// two-address elimination or inline assembly constraints. Returns the
/// 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
/// index is tied to an def operand. It also returns the def operand index by
/// 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.
///

6
lib/CodeGen/MachineInstr.cpp
View File

@ -709,7 +709,8 @@ int MachineInstr::findFirstPredOperandIdx() const {
/// check if the register def is tied to a source operand, due to either
/// two-address elimination or inline assembly constraints. Returns the
/// 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) {
assert(DefOpIdx >= 2);
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
/// is a register use and it is tied to an def operand. It also returns the def
/// operand index by reference.
bool MachineInstr::isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx){
bool MachineInstr::
isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx) const {
if (getOpcode() == TargetInstrInfo::INLINEASM) {
const MachineOperand &MO = getOperand(UseOpIdx);
if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0)