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[llvm-mca] Add optional identifier field to mca::Instruction #97867

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[llvm-mca] Add optional identifier field to mca::Instruction #97867

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6 changes: 6 additions & 0 deletions llvm/include/llvm/MCA/Instruction.h
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Original file line number Diff line number Diff line change
Expand Up @@ -643,6 +643,9 @@ class Instruction : public InstructionBase {
// True if this instruction has been optimized at register renaming stage.
bool IsEliminated;

// Client-dependent identifier for this instruction.
std::optional<uint64_t> Identifier;

public:
Instruction(const InstrDesc &D, const unsigned Opcode)
: InstructionBase(D, Opcode), Stage(IS_INVALID),
Expand Down Expand Up @@ -690,6 +693,9 @@ class Instruction : public InstructionBase {
bool isRetired() const { return Stage == IS_RETIRED; }
bool isEliminated() const { return IsEliminated; }

std::optional<uint64_t> getIdentifier() const { return Identifier; }
void setIdentifier(uint64_t Id) { Identifier = Id; }

// Forces a transition from state IS_DISPATCHED to state IS_EXECUTED.
void forceExecuted();
void setEliminated() { IsEliminated = true; }
Expand Down