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[BOLT][NFC] Use const reference for MCInstrDesc

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Summary:
Addressing comments from the review for "Expand auto types".
Use const reference in MCPlusBuilder for MCInstrDesc where the copy
is not necessary.

(cherry picked from FBD27844344)
This commit is contained in:
Amir Ayupov 2021-04-17 21:48:46 -07:00 committed by Maksim Panchenko
parent c7306cc219
commit f84f451a54
4 changed files with 11 additions and 11 deletions
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2
bolt/src/Passes/LivenessAnalysis.h
View File

@ -142,7 +142,7 @@ protected:
BC.MIB->getDefaultLiveOut(Used);
}
}
const MCInstrDesc InstInfo = BC.MII->get(Point.getOpcode());
const MCInstrDesc &InstInfo = BC.MII->get(Point.getOpcode());
for (unsigned I = 0, E = Point.getNumOperands(); I != E; ++I) {
if (!Point.getOperand(I).isReg() || I < InstInfo.getNumDefs())
continue;

2
bolt/src/Passes/ShrinkWrapping.cpp
View File

@ -264,7 +264,7 @@ void StackLayoutModifier::checkStackPointerRestore(MCInst &Point) {
return;
// Check if the definition of SP comes from FP -- in this case, this
// value may need to be updated depending on our stack layout changes
const MCInstrDesc InstInfo = BC.MII->get(Point.getOpcode());
const MCInstrDesc &InstInfo = BC.MII->get(Point.getOpcode());
unsigned NumDefs = InstInfo.getNumDefs();
bool UsesFP{false};
for (unsigned I = NumDefs, E = MCPlus::getNumPrimeOperands(Point);

8
bolt/src/Target/AArch64/AArch64MCPlusBuilder.cpp
View File

@ -179,7 +179,7 @@ public:
bool isLoadFromStack(const MCInst &Inst) const {
if (!isLoad(Inst))
return false;
const MCInstrDesc InstInfo = Info->get(Inst.getOpcode());
const MCInstrDesc &InstInfo = Info->get(Inst.getOpcode());
unsigned NumDefs = InstInfo.getNumDefs();
for (unsigned I = NumDefs, E = InstInfo.getNumOperands(); I < E; ++I) {
const MCOperand &Operand = Inst.getOperand(I);
@ -225,7 +225,7 @@ public:
return true;
// Look for literal addressing mode (see C1-143 ARM DDI 0487B.a)
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
for (unsigned I = 0, E = MCII.getNumOperands(); I != E; ++I) {
if (MCII.OpInfo[I].OperandType == MCOI::OPERAND_PCREL)
return true;
@ -261,7 +261,7 @@ public:
return evaluateADR(Inst, DispImm, DispExpr);
// Literal addressing mode
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
for (unsigned I = 0, E = MCII.getNumOperands(); I != E; ++I) {
if (MCII.OpInfo[I].OperandType != MCOI::OPERAND_PCREL)
continue;
@ -306,7 +306,7 @@ public:
"Unexpected number of operands");
++OI;
} else {
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
for (unsigned I = 0, E = MCII.getNumOperands(); I != E; ++I) {
if (MCII.OpInfo[I].OperandType == MCOI::OPERAND_PCREL) {
break;

10
bolt/src/Target/X86/X86MCPlusBuilder.cpp
View File

@ -622,7 +622,7 @@ public:
return true;
int MemOpNo = getMemoryOperandNo(Inst);
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
if (MemOpNo == -1)
return false;
@ -635,7 +635,7 @@ public:
return true;
int MemOpNo = getMemoryOperandNo(Inst);
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
if (MemOpNo == -1)
return false;
@ -1354,7 +1354,7 @@ public:
InstInfo I;
int MemOpNo = getMemoryOperandNo(Inst);
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
// If it is not dealing with a memory operand, we discard it
if (MemOpNo == -1 || MCII.isCall())
return false;
@ -1545,7 +1545,7 @@ public:
break;
}
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
for (int I = 0, E = MCII.getNumDefs(); I != E; ++I) {
const MCOperand &Operand = Inst.getOperand(I);
if (Operand.isReg() && Operand.getReg() == X86::RSP) {
@ -1667,7 +1667,7 @@ public:
bool escapesVariable(const MCInst &Inst, bool HasFramePointer) const override {
int MemOpNo = getMemoryOperandNo(Inst);
const MCInstrDesc MCII = Info->get(Inst.getOpcode());
const MCInstrDesc &MCII = Info->get(Inst.getOpcode());
const unsigned NumDefs = MCII.getNumDefs();
static BitVector SPBPAliases(BitVector(getAliases(X86::RSP)) |=
getAliases(X86::RBP));