110 lines
2.2 KiB
Go
110 lines
2.2 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 netip
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import (
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"internal/testenv"
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"os/exec"
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"path/filepath"
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"regexp"
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"runtime"
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"strings"
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"testing"
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)
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func TestInlining(t *testing.T) {
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testenv.MustHaveGoBuild(t)
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t.Parallel()
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var exe string
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if runtime.GOOS == "windows" {
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exe = ".exe"
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}
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out, err := exec.Command(
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filepath.Join(runtime.GOROOT(), "bin", "go"+exe),
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"build",
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"--gcflags=-m",
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"net/netip").CombinedOutput()
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if err != nil {
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t.Fatalf("go build: %v, %s", err, out)
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}
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got := map[string]bool{}
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regexp.MustCompile(` can inline (\S+)`).ReplaceAllFunc(out, func(match []byte) []byte {
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got[strings.TrimPrefix(string(match), " can inline ")] = true
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return nil
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})
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wantInlinable := []string{
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"(*uint128).halves",
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"Addr.BitLen",
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"Addr.hasZone",
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"Addr.Is4",
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"Addr.Is4In6",
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"Addr.Is6",
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"Addr.IsLoopback",
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"Addr.IsMulticast",
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"Addr.IsInterfaceLocalMulticast",
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"Addr.IsValid",
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"Addr.IsUnspecified",
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"Addr.Less",
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"Addr.lessOrEq",
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"Addr.Unmap",
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"Addr.Zone",
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"Addr.v4",
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"Addr.v6",
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"Addr.v6u16",
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"Addr.withoutZone",
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"AddrPortFrom",
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"AddrPort.Addr",
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"AddrPort.Port",
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"AddrPort.IsValid",
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"Prefix.IsSingleIP",
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"Prefix.Masked",
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"Prefix.IsValid",
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"PrefixFrom",
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"Prefix.Addr",
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"Prefix.Bits",
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"AddrFrom4",
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"IPv6LinkLocalAllNodes",
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"IPv6Unspecified",
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"MustParseAddr",
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"MustParseAddrPort",
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"MustParsePrefix",
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"appendDecimal",
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"appendHex",
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"uint128.addOne",
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"uint128.and",
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"uint128.bitsClearedFrom",
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"uint128.bitsSetFrom",
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"uint128.isZero",
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"uint128.not",
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"uint128.or",
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"uint128.subOne",
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"uint128.xor",
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}
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switch runtime.GOARCH {
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case "amd64", "arm64":
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// These don't inline on 32-bit.
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wantInlinable = append(wantInlinable,
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"u64CommonPrefixLen",
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"uint128.commonPrefixLen",
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"Addr.Next",
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"Addr.Prev",
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)
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}
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for _, want := range wantInlinable {
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if !got[want] {
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t.Errorf("%q is no longer inlinable", want)
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continue
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}
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delete(got, want)
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}
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for sym := range got {
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if strings.Contains(sym, ".func") {
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continue
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}
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t.Logf("not in expected set, but also inlinable: %q", sym)
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}
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}
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