interp: do cast operations at runtime if needed
Cast operations will still be evaluated at compile time in all cases they did before because of the built-in constant propagation of the IRBuilder, but when one of the parameters is not a constant it will transparently be evaluated at runtime. This avoids some errors in the partial evaluator. It is not yet complete as all binops will need a similar treatment.
Этот коммит содержится в:
родитель
c4ef2908ee
коммит
eccbd572eb
1 изменённых файлов: 11 добавлений и 11 удалений
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@ -135,31 +135,31 @@ func (fr *frame) evalBasicBlock(bb, incoming llvm.BasicBlock, indent string) (re
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// Cast operators
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case !inst.IsATruncInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstTrunc(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateTrunc(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAZExtInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstZExt(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateZExt(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsASExtInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstSExt(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateSExt(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAFPToUIInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstFPToUI(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateFPToUI(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAFPToSIInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstFPToSI(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateFPToSI(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAUIToFPInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstUIToFP(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateUIToFP(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsASIToFPInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstSIToFP(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateSIToFP(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAFPTruncInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstFPTrunc(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateFPTrunc(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsAFPExtInst().IsNil():
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value := fr.getLocal(inst.Operand(0))
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstFPExt(value.(*LocalValue).Value(), inst.Type())}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateFPExt(value.(*LocalValue).Value(), inst.Type(), "")}
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case !inst.IsABitCastInst().IsNil() && inst.Type().TypeKind() == llvm.PointerTypeKind:
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operand := inst.Operand(0)
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if !operand.IsACallInst().IsNil() {
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@ -179,12 +179,12 @@ func (fr *frame) evalBasicBlock(bb, incoming llvm.BasicBlock, indent string) (re
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lhs := fr.getLocal(inst.Operand(0)).(*LocalValue).Underlying
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rhs := fr.getLocal(inst.Operand(1)).(*LocalValue).Underlying
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predicate := inst.IntPredicate()
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstICmp(predicate, lhs, rhs)}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateICmp(predicate, lhs, rhs, "")}
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case !inst.IsAFCmpInst().IsNil():
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lhs := fr.getLocal(inst.Operand(0)).(*LocalValue).Underlying
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rhs := fr.getLocal(inst.Operand(1)).(*LocalValue).Underlying
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predicate := inst.FloatPredicate()
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fr.locals[inst] = &LocalValue{fr.Eval, llvm.ConstFCmp(predicate, lhs, rhs)}
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fr.locals[inst] = &LocalValue{fr.Eval, fr.builder.CreateFCmp(predicate, lhs, rhs, "")}
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case !inst.IsAPHINode().IsNil():
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for i := 0; i < inst.IncomingCount(); i++ {
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if inst.IncomingBlock(i) == incoming {
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