diff options
| -rw-r--r-- | src/cmd/compile/internal/gc/obj.go | 4 | ||||
| -rw-r--r-- | test/typeparam/issue51245.go | 16 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/gc/obj.go b/src/cmd/compile/internal/gc/obj.go index 5353435ed1..74e4c0a890 100644 --- a/src/cmd/compile/internal/gc/obj.go +++ b/src/cmd/compile/internal/gc/obj.go @@ -217,6 +217,10 @@ func dumpGlobalConst(n ir.Node) { if ir.ConstOverflow(v, t) { return } + } else { + // If the type of the constant is an instantiated generic, we need to emit + // that type so the linker knows about it. See issue 51245. + _ = reflectdata.TypeLinksym(t) } base.Ctxt.DwarfIntConst(base.Ctxt.Pkgpath, n.Sym().Name, types.TypeSymName(t), ir.IntVal(t, v)) } diff --git a/test/typeparam/issue51245.go b/test/typeparam/issue51245.go new file mode 100644 index 0000000000..bd4f7c5dc9 --- /dev/null +++ b/test/typeparam/issue51245.go @@ -0,0 +1,16 @@ +// build -gcflags=-G=3 + +// 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. + +package main + +type T[P any] int +const C T[int] = 3 + +type T2 int +const C2 T2 = 9 + +func main() { +} |