Preview: inlining_test.go
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/proc/thread-self/root/opt/golang/1.22.0/src/net/netip/inlining_test.go
// 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 netip
import (
"internal/testenv"
"os/exec"
"regexp"
"runtime"
"strings"
"testing"
)
func TestInlining(t *testing.T) {
testenv.MustHaveGoBuild(t)
t.Parallel()
out, err := exec.Command(
testenv.GoToolPath(t),
"build",
"--gcflags=-m",
"net/netip").CombinedOutput()
if err != nil {
t.Fatalf("go build: %v, %s", err, out)
}
got := map[string]bool{}
regexp.MustCompile(` can inline (\S+)`).ReplaceAllFunc(out, func(match []byte) []byte {
got[strings.TrimPrefix(string(match), " can inline ")] = true
return nil
})
wantInlinable := []string{
"(*uint128).halves",
"Addr.BitLen",
"Addr.hasZone",
"Addr.Is4",
"Addr.Is4In6",
"Addr.Is6",
"Addr.IsLoopback",
"Addr.IsMulticast",
"Addr.IsInterfaceLocalMulticast",
"Addr.IsValid",
"Addr.IsUnspecified",
"Addr.Less",
"Addr.Unmap",
"Addr.Zone",
"Addr.v4",
"Addr.v6",
"Addr.v6u16",
"Addr.withoutZone",
"AddrPortFrom",
"AddrPort.Addr",
"AddrPort.Port",
"AddrPort.IsValid",
"Prefix.IsSingleIP",
"Prefix.Masked",
"Prefix.IsValid",
"PrefixFrom",
"Prefix.Addr",
"Prefix.Bits",
"AddrFrom4",
"IPv6LinkLocalAllNodes",
"IPv6Unspecified",
"MustParseAddr",
"MustParseAddrPort",
"MustParsePrefix",
"appendDecimal",
"appendHex",
"uint128.addOne",
"uint128.and",
"uint128.bitsClearedFrom",
"uint128.bitsSetFrom",
"uint128.isZero",
"uint128.not",
"uint128.or",
"uint128.subOne",
"uint128.xor",
}
switch runtime.GOARCH {
case "amd64", "arm64":
// These don't inline on 32-bit.
wantInlinable = append(wantInlinable,
"Addr.Next",
"Addr.Prev",
)
}
for _, want := range wantInlinable {
if !got[want] {
t.Errorf("%q is no longer inlinable", want)
continue
}
delete(got, want)
}
for sym := range got {
if strings.Contains(sym, ".func") {
continue
}
t.Logf("not in expected set, but also inlinable: %q", sym)
}
}
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