Merge tag 'upstream-go1.22.1'HEADmastermain

Bug: 330574836
Test: builds
Change-Id: Icaf805d49ad96dd3f2960c5f92b4eeb7c131291c

1 files changed, 31 insertions, 0 deletions

diff --git a/src/cmd/link/internal/ld/testdata/deadcode/ifacemethod6.go b/src/cmd/link/internal/ld/testdata/deadcode/ifacemethod6.go
new file mode 100644
index 0000000000..7eb9419ef1
--- /dev/null
+++ b/src/cmd/link/internal/ld/testdata/deadcode/ifacemethod6.go
@@ -0,0 +1,31 @@
+// Copyright 2023 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.
+
+// This test only uses MethodByName() with constant names
+// of methods to look up. These methods need to be kept,
+// but other methods must be eliminated.
+
+package main
+
+import "reflect"
+
+type S int
+
+func (s S) M() { println("S.M") }
+
+func (s S) N() { println("S.N") }
+
+type T float64
+
+func (t T) F(s S) {}
+
+func main() {
+	var t T
+	meth, _ := reflect.TypeOf(t).MethodByName("F")
+	ft := meth.Type
+	at := ft.In(1)
+	v := reflect.New(at).Elem()
+	methV := v.MethodByName("M")
+	methV.Call([]reflect.Value{v})
+}