diff options
| -rw-r--r-- | src/cmd/compile/internal/noder/noder.go | 4 | ||||
| -rw-r--r-- | test/fixedbugs/issue55889.go | 21 |
2 files changed, 24 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/noder/noder.go b/src/cmd/compile/internal/noder/noder.go index b36db67a50..17ec87788a 100644 --- a/src/cmd/compile/internal/noder/noder.go +++ b/src/cmd/compile/internal/noder/noder.go @@ -323,7 +323,9 @@ func (p *noder) processPragmas() { } n := ir.AsNode(typecheck.Lookup(l.local).Def) if n == nil || n.Op() != ir.ONAME { - p.errorAt(l.pos, "//go:linkname must refer to declared function or variable") + if types.AllowsGoVersion(types.LocalPkg, 1, 18) { + p.errorAt(l.pos, "//go:linkname must refer to declared function or variable") + } continue } if n.Sym().Linkname != "" { diff --git a/test/fixedbugs/issue55889.go b/test/fixedbugs/issue55889.go new file mode 100644 index 0000000000..68812c2157 --- /dev/null +++ b/test/fixedbugs/issue55889.go @@ -0,0 +1,21 @@ +// errorcheck -0 -lang=go1.17 + +// Copyright 2022 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. + +// Prior to Go 1.18, ineffectual //go:linkname directives were treated +// as noops. Ensure that modules that contain these directives (e.g., +// x/sys prior to go.dev/cl/274573) continue to compile. + +package p + +import _ "unsafe" + +//go:linkname nonexistent nonexistent + +//go:linkname constant constant +const constant = 42 + +//go:linkname typename typename +type typename int |