microinstruction: Identity's type depends on the type of its argument
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2 changed files with 7 additions and 1 deletions
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@ -214,6 +214,12 @@ bool Inst::MayHaveSideEffects() const {
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}
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Type Inst::GetType() const {
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if (op == Opcode::Identity)
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return args[0].GetType();
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return GetTypeOf(op);
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}
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Value Inst::GetArg(size_t index) const {
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DEBUG_ASSERT(index < GetNumArgsOf(op));
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DEBUG_ASSERT(!args[index].IsEmpty());
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@ -78,7 +78,7 @@ public:
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/// Get the microop this microinstruction represents.
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Opcode GetOpcode() const { return op; }
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/// Get the type this instruction returns.
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Type GetType() const { return GetTypeOf(op); }
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Type GetType() const;
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/// Get the number of arguments this instruction has.
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size_t NumArgs() const { return GetNumArgsOf(op); }
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