mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
572f168ed2
Move various code out of Main itself and into helper functions that can be moved into other packages as package gc splits up. Similarly, move order and instrument inside walk to reduce the amount of API surface needed from the eventual package walk. Change-Id: I7849258038c6e39625a0385af9c0edd6a3b654a1 Reviewed-on: https://go-review.googlesource.com/c/go/+/279304 Trust: Russ Cox <rsc@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
277 lines
8.7 KiB
Go
277 lines
8.7 KiB
Go
// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gc
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import (
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"bufio"
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"cmd/compile/internal/base"
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"cmd/compile/internal/types"
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"cmd/internal/obj"
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"cmd/internal/obj/x86"
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"cmd/internal/src"
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"os"
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"testing"
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)
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// AMD64 registers available:
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// - integer: RAX, RBX, RCX, RDI, RSI, R8, R9, r10, R11
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// - floating point: X0 - X14
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var configAMD64 = ABIConfig{
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regAmounts: RegAmounts{
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intRegs: 9,
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floatRegs: 15,
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},
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}
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func TestMain(m *testing.M) {
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thearch.LinkArch = &x86.Linkamd64
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thearch.REGSP = x86.REGSP
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thearch.MAXWIDTH = 1 << 50
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MaxWidth = thearch.MAXWIDTH
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base.Ctxt = obj.Linknew(thearch.LinkArch)
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base.Ctxt.DiagFunc = base.Errorf
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base.Ctxt.DiagFlush = base.FlushErrors
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base.Ctxt.Bso = bufio.NewWriter(os.Stdout)
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Widthptr = thearch.LinkArch.PtrSize
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Widthreg = thearch.LinkArch.RegSize
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types.TypeLinkSym = func(t *types.Type) *obj.LSym {
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return typenamesym(t).Linksym()
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}
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types.TypeLinkSym = func(t *types.Type) *obj.LSym {
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return typenamesym(t).Linksym()
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}
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TypecheckInit()
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os.Exit(m.Run())
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}
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func TestABIUtilsBasic1(t *testing.T) {
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// func(x int32) int32
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i32 := types.Types[types.TINT32]
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ft := mkFuncType(nil, []*types.Type{i32}, []*types.Type{i32})
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// expected results
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exp := makeExpectedDump(`
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IN 0: R{ I0 } offset: -1 typ: int32
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OUT 0: R{ I0 } offset: -1 typ: int32
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intspill: 1 floatspill: 0 offsetToSpillArea: 0
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsBasic2(t *testing.T) {
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// func(x int32, y float64) (int32, float64, float64)
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i8 := types.Types[types.TINT8]
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i16 := types.Types[types.TINT16]
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i32 := types.Types[types.TINT32]
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i64 := types.Types[types.TINT64]
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f32 := types.Types[types.TFLOAT32]
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f64 := types.Types[types.TFLOAT64]
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c64 := types.Types[types.TCOMPLEX64]
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c128 := types.Types[types.TCOMPLEX128]
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ft := mkFuncType(nil,
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[]*types.Type{
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i8, i16, i32, i64,
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f32, f32, f64, f64,
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i8, i16, i32, i64,
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f32, f32, f64, f64,
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c128, c128, c128, c128, c64,
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i8, i16, i32, i64,
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i8, i16, i32, i64},
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[]*types.Type{i32, f64, f64})
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exp := makeExpectedDump(`
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IN 0: R{ I0 } offset: -1 typ: int8
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IN 1: R{ I1 } offset: -1 typ: int16
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IN 2: R{ I2 } offset: -1 typ: int32
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IN 3: R{ I3 } offset: -1 typ: int64
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IN 4: R{ F0 } offset: -1 typ: float32
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IN 5: R{ F1 } offset: -1 typ: float32
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IN 6: R{ F2 } offset: -1 typ: float64
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IN 7: R{ F3 } offset: -1 typ: float64
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IN 8: R{ I4 } offset: -1 typ: int8
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IN 9: R{ I5 } offset: -1 typ: int16
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IN 10: R{ I6 } offset: -1 typ: int32
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IN 11: R{ I7 } offset: -1 typ: int64
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IN 12: R{ F4 } offset: -1 typ: float32
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IN 13: R{ F5 } offset: -1 typ: float32
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IN 14: R{ F6 } offset: -1 typ: float64
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IN 15: R{ F7 } offset: -1 typ: float64
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IN 16: R{ F8 F9 } offset: -1 typ: complex128
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IN 17: R{ F10 F11 } offset: -1 typ: complex128
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IN 18: R{ F12 F13 } offset: -1 typ: complex128
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IN 19: R{ } offset: 0 typ: complex128
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IN 20: R{ F14 } offset: -1 typ: complex64
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IN 21: R{ I8 } offset: -1 typ: int8
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IN 22: R{ } offset: 16 typ: int16
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IN 23: R{ } offset: 20 typ: int32
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IN 24: R{ } offset: 24 typ: int64
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IN 25: R{ } offset: 32 typ: int8
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IN 26: R{ } offset: 34 typ: int16
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IN 27: R{ } offset: 36 typ: int32
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IN 28: R{ } offset: 40 typ: int64
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OUT 0: R{ I0 } offset: -1 typ: int32
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OUT 1: R{ F0 } offset: -1 typ: float64
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OUT 2: R{ F1 } offset: -1 typ: float64
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intspill: 9 floatspill: 15 offsetToSpillArea: 48
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsArrays(t *testing.T) {
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i32 := types.Types[types.TINT32]
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ae := types.NewArray(i32, 0)
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a1 := types.NewArray(i32, 1)
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a2 := types.NewArray(i32, 2)
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aa1 := types.NewArray(a1, 1)
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ft := mkFuncType(nil, []*types.Type{a1, ae, aa1, a2},
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[]*types.Type{a2, a1, ae, aa1})
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exp := makeExpectedDump(`
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IN 0: R{ I0 } offset: -1 typ: [1]int32
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IN 1: R{ } offset: 0 typ: [0]int32
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IN 2: R{ I1 } offset: -1 typ: [1][1]int32
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IN 3: R{ } offset: 0 typ: [2]int32
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OUT 0: R{ } offset: 8 typ: [2]int32
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OUT 1: R{ I0 } offset: -1 typ: [1]int32
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OUT 2: R{ } offset: 16 typ: [0]int32
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OUT 3: R{ I1 } offset: -1 typ: [1][1]int32
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intspill: 2 floatspill: 0 offsetToSpillArea: 16
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsStruct1(t *testing.T) {
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i8 := types.Types[types.TINT8]
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i16 := types.Types[types.TINT16]
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i32 := types.Types[types.TINT32]
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i64 := types.Types[types.TINT64]
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s := mkstruct([]*types.Type{i8, i8, mkstruct([]*types.Type{}), i8, i16})
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ft := mkFuncType(nil, []*types.Type{i8, s, i64},
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[]*types.Type{s, i8, i32})
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exp := makeExpectedDump(`
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IN 0: R{ I0 } offset: -1 typ: int8
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IN 1: R{ I1 I2 I3 I4 } offset: -1 typ: struct { int8; int8; struct {}; int8; int16 }
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IN 2: R{ I5 } offset: -1 typ: int64
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OUT 0: R{ I0 I1 I2 I3 } offset: -1 typ: struct { int8; int8; struct {}; int8; int16 }
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OUT 1: R{ I4 } offset: -1 typ: int8
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OUT 2: R{ I5 } offset: -1 typ: int32
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intspill: 6 floatspill: 0 offsetToSpillArea: 0
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsStruct2(t *testing.T) {
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f64 := types.Types[types.TFLOAT64]
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i64 := types.Types[types.TINT64]
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s := mkstruct([]*types.Type{i64, mkstruct([]*types.Type{})})
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fs := mkstruct([]*types.Type{f64, s, mkstruct([]*types.Type{})})
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ft := mkFuncType(nil, []*types.Type{s, s, fs},
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[]*types.Type{fs, fs})
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exp := makeExpectedDump(`
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IN 0: R{ I0 } offset: -1 typ: struct { int64; struct {} }
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IN 1: R{ I1 } offset: -1 typ: struct { int64; struct {} }
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IN 2: R{ I2 F0 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
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OUT 0: R{ I0 F0 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
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OUT 1: R{ I1 F1 } offset: -1 typ: struct { float64; struct { int64; struct {} }; struct {} }
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intspill: 3 floatspill: 1 offsetToSpillArea: 0
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsSliceString(t *testing.T) {
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i32 := types.Types[types.TINT32]
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sli32 := types.NewSlice(i32)
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str := types.New(types.TSTRING)
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i8 := types.Types[types.TINT8]
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i64 := types.Types[types.TINT64]
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ft := mkFuncType(nil, []*types.Type{sli32, i8, sli32, i8, str, i8, i64, sli32},
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[]*types.Type{str, i64, str, sli32})
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exp := makeExpectedDump(`
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IN 0: R{ I0 I1 I2 } offset: -1 typ: []int32
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IN 1: R{ I3 } offset: -1 typ: int8
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IN 2: R{ I4 I5 I6 } offset: -1 typ: []int32
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IN 3: R{ I7 } offset: -1 typ: int8
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IN 4: R{ } offset: 0 typ: string
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IN 5: R{ I8 } offset: -1 typ: int8
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IN 6: R{ } offset: 16 typ: int64
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IN 7: R{ } offset: 24 typ: []int32
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OUT 0: R{ I0 I1 } offset: -1 typ: string
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OUT 1: R{ I2 } offset: -1 typ: int64
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OUT 2: R{ I3 I4 } offset: -1 typ: string
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OUT 3: R{ I5 I6 I7 } offset: -1 typ: []int32
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intspill: 9 floatspill: 0 offsetToSpillArea: 48
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsMethod(t *testing.T) {
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i16 := types.Types[types.TINT16]
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i64 := types.Types[types.TINT64]
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f64 := types.Types[types.TFLOAT64]
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s1 := mkstruct([]*types.Type{i16, i16, i16})
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ps1 := types.NewPtr(s1)
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a7 := types.NewArray(ps1, 7)
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ft := mkFuncType(s1, []*types.Type{ps1, a7, f64, i16, i16, i16},
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[]*types.Type{a7, f64, i64})
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exp := makeExpectedDump(`
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IN 0: R{ I0 I1 I2 } offset: -1 typ: struct { int16; int16; int16 }
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IN 1: R{ I3 } offset: -1 typ: *struct { int16; int16; int16 }
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IN 2: R{ } offset: 0 typ: [7]*struct { int16; int16; int16 }
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IN 3: R{ F0 } offset: -1 typ: float64
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IN 4: R{ I4 } offset: -1 typ: int16
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IN 5: R{ I5 } offset: -1 typ: int16
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IN 6: R{ I6 } offset: -1 typ: int16
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OUT 0: R{ } offset: 56 typ: [7]*struct { int16; int16; int16 }
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OUT 1: R{ F0 } offset: -1 typ: float64
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OUT 2: R{ I0 } offset: -1 typ: int64
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intspill: 7 floatspill: 1 offsetToSpillArea: 112
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`)
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abitest(t, ft, exp)
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}
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func TestABIUtilsInterfaces(t *testing.T) {
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ei := types.Types[types.TINTER] // interface{}
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pei := types.NewPtr(ei) // *interface{}
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fldt := mkFuncType(types.FakeRecvType(), []*types.Type{},
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[]*types.Type{types.UntypedString})
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field := types.NewField(src.NoXPos, nil, fldt)
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// interface{ ...() string }
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nei := types.NewInterface(types.LocalPkg, []*types.Field{field})
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i16 := types.Types[types.TINT16]
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tb := types.Types[types.TBOOL]
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s1 := mkstruct([]*types.Type{i16, i16, tb})
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ft := mkFuncType(nil, []*types.Type{s1, ei, ei, nei, pei, nei, i16},
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[]*types.Type{ei, nei, pei})
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exp := makeExpectedDump(`
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IN 0: R{ I0 I1 I2 } offset: -1 typ: struct { int16; int16; bool }
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IN 1: R{ I3 I4 } offset: -1 typ: interface {}
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IN 2: R{ I5 I6 } offset: -1 typ: interface {}
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IN 3: R{ I7 I8 } offset: -1 typ: interface { () untyped string }
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IN 4: R{ } offset: 0 typ: *interface {}
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IN 5: R{ } offset: 8 typ: interface { () untyped string }
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IN 6: R{ } offset: 24 typ: int16
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OUT 0: R{ I0 I1 } offset: -1 typ: interface {}
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OUT 1: R{ I2 I3 } offset: -1 typ: interface { () untyped string }
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OUT 2: R{ I4 } offset: -1 typ: *interface {}
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intspill: 9 floatspill: 0 offsetToSpillArea: 32
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`)
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abitest(t, ft, exp)
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}
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