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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gc
import (
"bufio"
"cmd/compile/internal/base"
"cmd/compile/internal/ssagen"
"cmd/compile/internal/typecheck"
"cmd/compile/internal/types"
"cmd/internal/obj"
"cmd/internal/obj/x86"
"cmd/internal/src"
"os"
"testing"
)
// AMD64 registers available:
// - integer: RAX, RBX, RCX, RDI, RSI, R8, R9, r10, R11
// - floating point: X0 - X14
var configAMD64 = ABIConfig{
regAmounts: RegAmounts{
intRegs: 9,
floatRegs: 15,
},
}
func TestMain(m *testing.M) {
ssagen.Arch.LinkArch = &x86.Linkamd64
ssagen.Arch.REGSP = x86.REGSP
ssagen.Arch.MAXWIDTH = 1 << 50
types.MaxWidth = ssagen.Arch.MAXWIDTH
base.Ctxt = obj.Linknew(ssagen.Arch.LinkArch)
base.Ctxt.DiagFunc = base.Errorf
base.Ctxt.DiagFlush = base.FlushErrors
base.Ctxt.Bso = bufio.NewWriter(os.Stdout)
types.PtrSize = ssagen.Arch.LinkArch.PtrSize
types.RegSize = ssagen.Arch.LinkArch.RegSize
typecheck.InitUniverse()
os.Exit(m.Run())
}
func TestABIUtilsBasic1(t *testing.T) {
// func(x int32) int32
i32 := types.Types[types.TINT32]
ft := mkFuncType(nil, []*types.Type{i32}, []*types.Type{i32})
// expected results
exp := makeExpectedDump(`
IN 0: R{ I0 } offset: -1 typ: int32
OUT 0: R{ I0 } offset: -1 typ: int32
intspill: 1 floatspill: 0 offsetToSpillArea: 0
`)
abitest(t, ft, exp)
}
func TestABIUtilsBasic2(t *testing.T) {
// func(x int32, y float64) (int32, float64, float64)
i8 := types.Types[types.TINT8]
i16 := types.Types[types.TINT16]
i32 := types.Types[types.TINT32]
i64 := types.Types[types.TINT64]
f32 := types.Types[types.TFLOAT32]
f64 := types.Types[types.TFLOAT64]
c64 := types.Types[types.TCOMPLEX64]
c128 := types.Types[types.TCOMPLEX128]
ft := mkFuncType(nil,
[]*types.Type{
i8, i16, i32, i64,
f32, f32, f64, f64,
i8, i16, i32, i64,
f32, f32, f64, f64,
c128, c128, c128, c128, c64,
i8, i16, i32, i64,
i8, i16, i32, i64},
[]*types.Type{i32, f64, f64})
exp := makeExpectedDump(`
IN 0: R{ I0 } offset: -1 typ: int8
IN 1: R{ I1 } offset: -1 typ: int16
IN 2: R{ I2 } offset: -1 typ: int32
IN 3: R{ I3 } offset: -1 typ: int64
IN 4: R{ F0 } offset: -1 typ: float32
IN 5: R{ F1 } offset: -1 typ: float32
IN 6: R{ F2 } offset: -1 typ: float64
IN 7: R{ F3 } offset: -1 typ: float64
IN 8: R{ I4 } offset: -1 typ: int8
IN 9: R{ I5 } offset: -1 typ: int16
IN 10: R{ I6 } offset: -1 typ: int32
IN 11: R{ I7 } offset: -1 typ: int64
IN 12: R{ F4 } offset: -1 typ: float32
IN 13: R{ F5 } offset: -1 typ: float32
IN 14: R{ F6 } offset: -1 typ: float64
IN 15: R{ F7 } offset: -1 typ: float64
IN 16: R{ F8 F9 } offset: -1 typ: complex128
IN 17: R{ F10 F11 } offset: -1 typ: complex128
IN 18: R{ F12 F13 } offset: -1 typ: complex128
IN 19: R{ } offset: 0 typ: complex128
IN 20: R{ F14 } offset: -1 typ: complex64
IN 21: R{ I8 } offset: -1 typ: int8
IN 22: R{ } offset: 16 typ: int16
IN 23: R{ } offset: 20 typ: int32
IN 24: R{ } offset: 24 typ: int64
IN 25: R{ } offset: 32 typ: int8
IN 26: R{ } offset: 34 typ: int16
IN 27: R{ } offset: 36 typ: int32
IN 28: R{ } offset: 40 typ: int64
OUT 0: R{ I0 } offset: -1 typ: int32
OUT 1: R{ F0 } offset: -1 typ: float64
OUT 2: R{ F1 } offset: -1 typ: float64
intspill: 9 floatspill: 15 offsetToSpillArea: 48
`)
abitest(t, ft, exp)
}
func TestABIUtilsArrays(t *testing.T) {
i32 := types.Types[types.TINT32]
ae := types.NewArray(i32, 0)
a1 := types.NewArray(i32, 1)
a2 := types.NewArray(i32, 2)
aa1 := types.NewArray(a1, 1)
ft := mkFuncType(nil, []*types.Type{a1, ae, aa1, a2},
[]*types.Type{a2, a1, ae, aa1})
exp := makeExpectedDump(`
IN 0: R{ I0 } offset: -1 typ: [1]int32
IN 1: R{ } offset: 0 typ: [0]int32
IN 2: R{ I1 } offset: -1 typ: [1][1]int32
IN 3: R{ } offset: 0 typ: [2]int32
OUT 0: R{ } offset: 8 typ: [2]int32
OUT 1: R{ I0 } offset: -1 typ: [1]int32
OUT 2: R{ } offset: 16 typ: [0]int32
OUT 3: R{ I1 } offset: -1 typ: [1][1]int32
intspill: 2 floatspill: 0 offsetToSpillArea: 16
`)
abitest(t, ft, exp)
}
func TestABIUtilsStruct1(t *testing.T) {
i8 := types.Types[types.TINT8]
i16 := types.Types[types.TINT16]
i32 := types.Types[types.TINT32]
i64 := types.Types[types.TINT64]
s := mkstruct([]*types.Type{i8, i8, mkstruct([]*types.Type{}), i8, i16})
ft := mkFuncType(nil, []*types.Type{i8, s, i64},
[]*types.Type{s, i8, i32})
exp := makeExpectedDump(`
IN 0: R{ I0 } offset: -1 typ: int8
IN 1: R{ I1 I2 I3 I4 } offset: -1 typ: struct { int8; int8; struct {}; int8; int16 }
IN 2: R{ I5 } offset: -1 typ: int64
OUT 0: R{ I0 I1 I2 I3 } offset: -1 typ: struct { int8; int8; struct {}; int8; int16 }
OUT 1: R{ I4 } offset: -1 typ: int8
OUT 2: R{ I5 } offset: -1 typ: int32
intspill: 6 floatspill: 0 offsetToSpillArea: 0
`)
abitest(t, ft, exp)
}
func TestABIUtilsStruct2(t *testing.T) {
f64 := types.Types[types.TFLOAT64]
i64 := types.Types[types.TINT64]
s := mkstruct([]*types.Type{i64, mkstruct([]*types.Type{})})
fs := mkstruct([]*types.Type{f64, s, mkstruct([]*types.Type{})})
ft := mkFuncType(nil, []*types.Type{s, s, fs},
[]*types.Type{fs, fs})
exp := makeExpectedDump(`
IN 0: R{ I0 } offset: -1 typ: struct { int64; struct {} }
IN 1: R{ I1 } offset: -1 typ: struct { int64; struct {} }
IN 2: R{ I2 F0 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
OUT 0: R{ I0 F0 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
OUT 1: R{ I1 F1 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
intspill: 3 floatspill: 1 offsetToSpillArea: 0
`)
abitest(t, ft, exp)
}
func TestABIUtilsSliceString(t *testing.T) {
i32 := types.Types[types.TINT32]
sli32 := types.NewSlice(i32)
str := types.New(types.TSTRING)
i8 := types.Types[types.TINT8]
i64 := types.Types[types.TINT64]
ft := mkFuncType(nil, []*types.Type{sli32, i8, sli32, i8, str, i8, i64, sli32},
[]*types.Type{str, i64, str, sli32})
exp := makeExpectedDump(`
IN 0: R{ I0 I1 I2 } offset: -1 typ: []int32
IN 1: R{ I3 } offset: -1 typ: int8
IN 2: R{ I4 I5 I6 } offset: -1 typ: []int32
IN 3: R{ I7 } offset: -1 typ: int8
IN 4: R{ } offset: 0 typ: string
IN 5: R{ I8 } offset: -1 typ: int8
IN 6: R{ } offset: 16 typ: int64
IN 7: R{ } offset: 24 typ: []int32
OUT 0: R{ I0 I1 } offset: -1 typ: string
OUT 1: R{ I2 } offset: -1 typ: int64
OUT 2: R{ I3 I4 } offset: -1 typ: string
OUT 3: R{ I5 I6 I7 } offset: -1 typ: []int32
intspill: 9 floatspill: 0 offsetToSpillArea: 48
`)
abitest(t, ft, exp)
}
func TestABIUtilsMethod(t *testing.T) {
i16 := types.Types[types.TINT16]
i64 := types.Types[types.TINT64]
f64 := types.Types[types.TFLOAT64]
s1 := mkstruct([]*types.Type{i16, i16, i16})
ps1 := types.NewPtr(s1)
a7 := types.NewArray(ps1, 7)
ft := mkFuncType(s1, []*types.Type{ps1, a7, f64, i16, i16, i16},
[]*types.Type{a7, f64, i64})
exp := makeExpectedDump(`
IN 0: R{ I0 I1 I2 } offset: -1 typ: struct { int16; int16; int16 }
IN 1: R{ I3 } offset: -1 typ: *struct { int16; int16; int16 }
IN 2: R{ } offset: 0 typ: [7]*struct { int16; int16; int16 }
IN 3: R{ F0 } offset: -1 typ: float64
IN 4: R{ I4 } offset: -1 typ: int16
IN 5: R{ I5 } offset: -1 typ: int16
IN 6: R{ I6 } offset: -1 typ: int16
OUT 0: R{ } offset: 56 typ: [7]*struct { int16; int16; int16 }
OUT 1: R{ F0 } offset: -1 typ: float64
OUT 2: R{ I0 } offset: -1 typ: int64
intspill: 7 floatspill: 1 offsetToSpillArea: 112
`)
abitest(t, ft, exp)
}
func TestABIUtilsInterfaces(t *testing.T) {
ei := types.Types[types.TINTER] // interface{}
pei := types.NewPtr(ei) // *interface{}
fldt := mkFuncType(types.FakeRecvType(), []*types.Type{},
[]*types.Type{types.UntypedString})
field := types.NewField(src.NoXPos, nil, fldt)
// interface{ ...() string }
nei := types.NewInterface(types.LocalPkg, []*types.Field{field})
i16 := types.Types[types.TINT16]
tb := types.Types[types.TBOOL]
s1 := mkstruct([]*types.Type{i16, i16, tb})
ft := mkFuncType(nil, []*types.Type{s1, ei, ei, nei, pei, nei, i16},
[]*types.Type{ei, nei, pei})
exp := makeExpectedDump(`
IN 0: R{ I0 I1 I2 } offset: -1 typ: struct { int16; int16; bool }
IN 1: R{ I3 I4 } offset: -1 typ: interface {}
IN 2: R{ I5 I6 } offset: -1 typ: interface {}
IN 3: R{ I7 I8 } offset: -1 typ: interface { () untyped string }
IN 4: R{ } offset: 0 typ: *interface {}
IN 5: R{ } offset: 8 typ: interface { () untyped string }
IN 6: R{ } offset: 24 typ: int16
OUT 0: R{ I0 I1 } offset: -1 typ: interface {}
OUT 1: R{ I2 I3 } offset: -1 typ: interface { () untyped string }
OUT 2: R{ I4 } offset: -1 typ: *interface {}
intspill: 9 floatspill: 0 offsetToSpillArea: 32
`)
abitest(t, ft, exp)
}
|
