blob: 3744a4f9700582d25a8973f42621a3c5a154e29a [file] [log] [blame]
// Copyright 2012 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 runtime_test
import (
"runtime"
"testing"
)
type I1 interface {
Method1()
}
type I2 interface {
Method1()
Method2()
}
type TS uint16
type TM uintptr
type TL [2]uintptr
func (TS) Method1() {}
func (TS) Method2() {}
func (TM) Method1() {}
func (TM) Method2() {}
func (TL) Method1() {}
func (TL) Method2() {}
var (
e interface{}
e_ interface{}
i1 I1
i2 I2
ts TS
tm TM
tl TL
ok bool
)
// Issue 9370
func TestCmpIfaceConcreteAlloc(t *testing.T) {
if runtime.Compiler != "gc" {
t.Skip("skipping on non-gc compiler")
}
n := testing.AllocsPerRun(1, func() {
_ = e == ts
_ = i1 == ts
_ = e == 1
})
if n > 0 {
t.Fatalf("iface cmp allocs=%v; want 0", n)
}
}
func BenchmarkEqEfaceConcrete(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = e == ts
}
}
func BenchmarkEqIfaceConcrete(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = i1 == ts
}
}
func BenchmarkNeEfaceConcrete(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = e != ts
}
}
func BenchmarkNeIfaceConcrete(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = i1 != ts
}
}
func BenchmarkConvT2ESmall(b *testing.B) {
for i := 0; i < b.N; i++ {
e = ts
}
}
func BenchmarkConvT2EUintptr(b *testing.B) {
for i := 0; i < b.N; i++ {
e = tm
}
}
func BenchmarkConvT2ELarge(b *testing.B) {
for i := 0; i < b.N; i++ {
e = tl
}
}
func BenchmarkConvT2ISmall(b *testing.B) {
for i := 0; i < b.N; i++ {
i1 = ts
}
}
func BenchmarkConvT2IUintptr(b *testing.B) {
for i := 0; i < b.N; i++ {
i1 = tm
}
}
func BenchmarkConvT2ILarge(b *testing.B) {
for i := 0; i < b.N; i++ {
i1 = tl
}
}
func BenchmarkConvI2E(b *testing.B) {
i2 = tm
for i := 0; i < b.N; i++ {
e = i2
}
}
func BenchmarkConvI2I(b *testing.B) {
i2 = tm
for i := 0; i < b.N; i++ {
i1 = i2
}
}
func BenchmarkAssertE2T(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
tm = e.(TM)
}
}
func BenchmarkAssertE2TLarge(b *testing.B) {
e = tl
for i := 0; i < b.N; i++ {
tl = e.(TL)
}
}
func BenchmarkAssertE2I(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
i1 = e.(I1)
}
}
func BenchmarkAssertI2T(b *testing.B) {
i1 = tm
for i := 0; i < b.N; i++ {
tm = i1.(TM)
}
}
func BenchmarkAssertI2I(b *testing.B) {
i1 = tm
for i := 0; i < b.N; i++ {
i2 = i1.(I2)
}
}
func BenchmarkAssertI2E(b *testing.B) {
i1 = tm
for i := 0; i < b.N; i++ {
e = i1.(interface{})
}
}
func BenchmarkAssertE2E(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
e_ = e
}
}
func BenchmarkAssertE2T2(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
tm, ok = e.(TM)
}
}
func BenchmarkAssertE2T2Blank(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
_, ok = e.(TM)
}
}
func BenchmarkAssertI2E2(b *testing.B) {
i1 = tm
for i := 0; i < b.N; i++ {
e, ok = i1.(interface{})
}
}
func BenchmarkAssertI2E2Blank(b *testing.B) {
i1 = tm
for i := 0; i < b.N; i++ {
_, ok = i1.(interface{})
}
}
func BenchmarkAssertE2E2(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
e_, ok = e.(interface{})
}
}
func BenchmarkAssertE2E2Blank(b *testing.B) {
e = tm
for i := 0; i < b.N; i++ {
_, ok = e.(interface{})
}
}
func TestNonEscapingConvT2E(t *testing.T) {
if runtime.Compiler == "gccgo" {
t.Skip("does not work on gccgo without better escape analysis")
}
m := make(map[interface{}]bool)
m[42] = true
if !m[42] {
t.Fatalf("42 is not present in the map")
}
if m[0] {
t.Fatalf("0 is present in the map")
}
n := testing.AllocsPerRun(1000, func() {
if m[0] {
t.Fatalf("0 is present in the map")
}
})
if n != 0 {
t.Fatalf("want 0 allocs, got %v", n)
}
}
func TestNonEscapingConvT2I(t *testing.T) {
if runtime.Compiler == "gccgo" {
t.Skip("does not work on gccgo without better escape analysis")
}
m := make(map[I1]bool)
m[TM(42)] = true
if !m[TM(42)] {
t.Fatalf("42 is not present in the map")
}
if m[TM(0)] {
t.Fatalf("0 is present in the map")
}
n := testing.AllocsPerRun(1000, func() {
if m[TM(0)] {
t.Fatalf("0 is present in the map")
}
})
if n != 0 {
t.Fatalf("want 0 allocs, got %v", n)
}
}