| // 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.lessOrEq", |
| "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, |
| "u64CommonPrefixLen", |
| "uint128.commonPrefixLen", |
| "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) |
| |
| } |
| } |
