Beispiel #1
0
Datei: irx.go Projekt: llir/llvm
// NewFunc returns a new function based on the given result type, function name,
// and function parameters.
func NewFunc(result, gname, params interface{}) (*ir.Function, error) {
	if result, ok := result.(types.Type); ok {
		name, err := getGlobalName(gname)
		if err != nil {
			return nil, errutil.Err(err)
		}
		var sig *types.Func
		switch params := params.(type) {
		case *Params:
			sig, err = types.NewFunc(result, params.params, params.variadic)
			if err != nil {
				return nil, errutil.Err(err)
			}
		case nil:
			sig, err = types.NewFunc(result, nil, false)
			if err != nil {
				return nil, errutil.Err(err)
			}
		default:
			return nil, errutil.Newf("invalid function parameters specifier type; expected *Params, got %T", params)
		}
		return ir.NewFunction(name, sig), nil
	}
	return nil, errutil.Newf("invalid function result type; expected types.Type, got %T", result)
}
Beispiel #2
0
Datei: irx.go Projekt: llir/llvm
// NewFuncType returns a new function type based on the given result and
// parameter types.
func NewFuncType(result, params interface{}) (*types.Func, error) {
	if result, ok := result.(types.Type); ok {
		switch params := params.(type) {
		case *Params:
			return types.NewFunc(result, params.params, params.variadic)
		case nil:
			return types.NewFunc(result, nil, false)
		default:
			return nil, errutil.Newf("invalid function parameters specifier type; expected *Params, got %T", params)
		}
	}
	return nil, errutil.Newf("invalid function result type; expected types.Type, got %T", result)
}
Beispiel #3
0
func TestFuncString(t *testing.T) {
	golden := []struct {
		result   types.Type
		params   []*types.Param
		variadic bool
		want     string
		err      string
	}{
		// i=0
		{
			result: voidTyp, params: nil,
			want: "void ()",
		},
		// i=1
		{
			result: i32Typ, params: []*types.Param{types.NewParam(i32Typ, "")},
			want: "i32 (i32)",
		},
		// i=2
		{
			result: voidTyp, params: []*types.Param{types.NewParam(i32Typ, ""), types.NewParam(i8Typ, "")},
			want: "void (i32, i8)",
		},
		// i=3
		{
			result: i32Typ, params: []*types.Param{types.NewParam(i8PtrTyp, "")}, variadic: true,
			want: "i32 (i8*, ...)",
		},
		// i=4
		{
			result: i32Typ, params: []*types.Param{types.NewParam(voidTyp, "")}, // i32 (void)
			want: "", err: "invalid function parameter type; void type only allowed for function results",
		},
		// i=5
		{
			result: i32Typ, params: []*types.Param{types.NewParam(funcTyp, "")}, // i32 (i32 (i32))
			want: "", err: `invalid function parameter type "i32 (i32)"`,
		},
		// i=6
		{
			result: labelTyp, params: nil, // label ()
			want: "", err: `invalid result parameter type "label"`,
		},
	}

	for i, g := range golden {
		typ, err := types.NewFunc(g.result, g.params, g.variadic)
		if !sameError(err, g.err) {
			t.Errorf("i=%d: error mismatch; expected %v, got %v", i, g.err, err)
			continue
		} else if err != nil {
			// Expected error match, check next test case.
			continue
		}
		got := typ.String()
		if got != g.want {
			t.Errorf("i=%d: string mismatch; expected %v, got %v", i, g.want, got)
		}
	}
}
Beispiel #4
0
Datei: util.go Projekt: mewmew/uc
// toIrType converts the given uC type to the corresponding LLVM IR type.
func toIrType(n uctypes.Type) irtypes.Type {
	//TODO: implement, placeholder implementation
	var t irtypes.Type
	var err error
	switch ucType := n.(type) {
	case *uctypes.Basic:
		switch ucType.Kind {
		case uctypes.Int:
			//TODO: Get int width from compile env
			t, err = irtypes.NewInt(32)
		case uctypes.Char:
			t, err = irtypes.NewInt(8)
		case uctypes.Void:
			t = irtypes.NewVoid()
		}
	case *uctypes.Array:
		elem := toIrType(ucType.Elem)
		if ucType.Len == 0 {
			t, err = irtypes.NewPointer(elem)
		} else {
			t, err = irtypes.NewArray(elem, ucType.Len)
		}
	case *uctypes.Func:
		var params []*irtypes.Param
		variadic := false
		for _, p := range ucType.Params {
			//TODO: Add support for variadic
			if uctypes.IsVoid(p.Type) {
				break
			}
			pt := toIrType(p.Type)
			dbg.Printf("converting type %#v to %#v", p.Type, pt)
			params = append(params, irtypes.NewParam(pt, p.Name))
		}
		result := toIrType(ucType.Result)
		t, err = irtypes.NewFunc(result, params, variadic)
	default:
		panic(fmt.Sprintf("support for translating type %T not yet implemented.", ucType))
	}
	if err != nil {
		panic(errutil.Err(err))
	}
	if t == nil {
		panic(errutil.Newf("Conversion failed: %#v", n))
	}
	return t
}
Beispiel #5
0
func init() {
	var err error
	// Void type.
	// void
	voidTyp = types.NewVoid()

	// Integer types.
	// i1
	i1Typ, err = types.NewInt(1)
	if err != nil {
		log.Fatalln(err)
	}
	// i8
	i8Typ, err = types.NewInt(8)
	if err != nil {
		log.Fatalln(err)
	}
	// i32
	i32Typ, err = types.NewInt(32)
	if err != nil {
		log.Fatalln(err)
	}
	// i64
	i64Typ, err = types.NewInt(64)
	if err != nil {
		log.Fatalln(err)
	}

	// Floating point types.
	// half
	f16Typ, err = types.NewFloat(types.Float16)
	if err != nil {
		log.Fatalln(err)
	}
	// float
	f32Typ, err = types.NewFloat(types.Float32)
	if err != nil {
		log.Fatalln(err)
	}
	// double
	f64Typ, err = types.NewFloat(types.Float64)
	if err != nil {
		log.Fatalln(err)
	}
	// fp128
	f128Typ, err = types.NewFloat(types.Float128)
	if err != nil {
		log.Fatalln(err)
	}
	// x86_fp80
	f80_x86Typ, err = types.NewFloat(types.Float80_x86)
	if err != nil {
		log.Fatalln(err)
	}
	// ppc_fp128
	f128_ppcTyp, err = types.NewFloat(types.Float128_PPC)

	// MMX type.
	// x86_mmx
	mmxTyp = types.NewMMX()

	// Label type.
	// label
	labelTyp = types.NewLabel()

	// Metadata type.
	// metadata
	metadataTyp = types.NewMetadata()

	// Function types.
	// void ()
	voidFuncTyp, err = types.NewFunc(voidTyp, nil, false)
	if err != nil {
		log.Fatalln(err)
	}
	// i32 ()
	i32FuncTyp, err = types.NewFunc(i32Typ, nil, false)
	if err != nil {
		log.Fatalln(err)
	}
	// void (i32)
	i32Param := types.NewParam(i32Typ, "")
	i32Params := []*types.Param{i32Param}
	voidFunci32Typ, err = types.NewFunc(voidTyp, i32Params, false)
	if err != nil {
		log.Fatalln(err)
	}
	// void (float)
	f32Param := types.NewParam(f32Typ, "")
	f32Params := []*types.Param{f32Param}
	voidFuncf32Typ, err = types.NewFunc(voidTyp, f32Params, false)
	if err != nil {
		log.Fatalln(err)
	}
	// void (i32, ...)
	voidFunci32EllipsisTyp, err = types.NewFunc(voidTyp, i32Params, true)
	if err != nil {
		log.Fatalln(err)
	}
	// i32 (i32)
	funcTyp, err = types.NewFunc(i32Typ, i32Params, false)
	if err != nil {
		log.Fatalln(err)
	}

	// Pointer types.
	// i8*
	i8PtrTyp, err = types.NewPointer(i8Typ)
	if err != nil {
		log.Fatalln(err)
	}
	// half*
	f16PtrTyp, err = types.NewPointer(f16Typ)
	if err != nil {
		log.Fatalln(err)
	}
	// x86_mmx*
	mmxPtrTyp, err = types.NewPointer(mmxTyp)
	if err != nil {
		log.Fatalln(err)
	}
	// i32 (i32)*
	funcPtrTyp, err = types.NewPointer(funcTyp)
	if err != nil {
		log.Fatalln(err)
	}

	// Vector types.
	// <1 x i8>
	i8x1VecTyp, err = types.NewVector(i8Typ, 1)
	if err != nil {
		log.Fatalln(err)
	}
	// <2 x i32>
	i32x2VecTyp, err = types.NewVector(i32Typ, 2)
	if err != nil {
		log.Fatalln(err)
	}
	// <3 x i32>
	i32x3VecTyp, err = types.NewVector(i32Typ, 3)
	if err != nil {
		log.Fatalln(err)
	}
	// <3 x half>
	f16x3VecTyp, err = types.NewVector(f16Typ, 3)
	if err != nil {
		log.Fatalln(err)
	}
	// <4 x float>
	f32x4VecTyp, err = types.NewVector(f32Typ, 4)
	if err != nil {
		log.Fatalln(err)
	}
	// <5 x double>
	f64x5VecTyp, err = types.NewVector(f64Typ, 5)
	if err != nil {
		log.Fatalln(err)
	}
	// <6 x fp128>
	f128x6VecTyp, err = types.NewVector(f128Typ, 6)
	if err != nil {
		log.Fatalln(err)
	}
	// <7 x x86_fp80>
	f80_x86x7VecTyp, err = types.NewVector(f80_x86Typ, 7)
	if err != nil {
		log.Fatalln(err)
	}
	// <8 x ppc_fp128>
	f128_ppcx8VecTyp, err = types.NewVector(f128_ppcTyp, 8)
	if err != nil {
		log.Fatalln(err)
	}
	// <9 x i8*>
	i8Ptrx9VecTyp, err = types.NewVector(i8PtrTyp, 9)
	if err != nil {
		log.Fatalln(err)
	}
	// <10 x half*>
	f16Ptrx10VecTyp, err = types.NewVector(f16PtrTyp, 10)
	if err != nil {
		log.Fatalln(err)
	}

	// Array types.
	// [1 x i8]
	i8x1ArrTyp, err = types.NewArray(i8Typ, 1)
	if err != nil {
		log.Fatalln(err)
	}
	// [2 x i32]
	i32x2ArrTyp, err = types.NewArray(i32Typ, 2)
	if err != nil {
		log.Fatalln(err)
	}
	// [3 x i32]
	i32x3ArrTyp, err = types.NewArray(i32Typ, 3)
	if err != nil {
		log.Fatalln(err)
	}
	// [3 x half]
	f16x3ArrTyp, err = types.NewArray(f16Typ, 3)
	if err != nil {
		log.Fatalln(err)
	}
	// [4 x float]
	f32x4ArrTyp, err = types.NewArray(f32Typ, 4)
	if err != nil {
		log.Fatalln(err)
	}
	// [5 x double]
	f64x5ArrTyp, err = types.NewArray(f64Typ, 5)
	if err != nil {
		log.Fatalln(err)
	}
	// [6 x fp128]
	f128x6ArrTyp, err = types.NewArray(f128Typ, 6)
	if err != nil {
		log.Fatalln(err)
	}
	// [7 x x86_fp80]
	f80_x86x7ArrTyp, err = types.NewArray(f80_x86Typ, 7)
	if err != nil {
		log.Fatalln(err)
	}
	// [8 x ppc_fp128]
	f128_ppcx8ArrTyp, err = types.NewArray(f128_ppcTyp, 8)
	if err != nil {
		log.Fatalln(err)
	}
	// [9 x i8*]
	i8Ptrx9ArrTyp, err = types.NewArray(i8PtrTyp, 9)
	if err != nil {
		log.Fatalln(err)
	}
	// [10 x half*]
	f16Ptrx10ArrTyp, err = types.NewArray(f16PtrTyp, 10)
	if err != nil {
		log.Fatalln(err)
	}

	// Structure types.
	// {i32, i8}
	fields := []types.Type{i32Typ, i8Typ}
	i32i8structTyp, err = types.NewStruct(fields, false)
	if err != nil {
		log.Fatalln(err)
	}
	// {i32, i32}
	fields = []types.Type{i32Typ, i32Typ}
	i32i32structTyp, err = types.NewStruct(fields, false)
	if err != nil {
		log.Fatalln(err)
	}
	// {i32, i8, i8}
	fields = []types.Type{i32Typ, i8Typ, i8Typ}
	i32i8i8structTyp, err = types.NewStruct(fields, false)
	if err != nil {
		log.Fatalln(err)
	}
	// {i1, float, x86_mmx, i32 (i32)*, <1 x i8>, [3 x half]}
	fields = []types.Type{i1Typ, f32Typ, mmxTyp, funcPtrTyp, i8x1VecTyp, f16x3ArrTyp}
	structTyp, err = types.NewStruct(fields, false)
	if err != nil {
		log.Fatalln(err)
	}
}