Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/test/fixedbugs/issue48916.go b/test/fixedbugs/issue48916.go
new file mode 100644
index 0000000..cbe97b5
--- /dev/null
+++ b/test/fixedbugs/issue48916.go
@@ -0,0 +1,37 @@
+// compile
+
+// Copyright 2021 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.
+
+// Issue 48916: expand_calls pass crashes due to a (dead)
+// use of an OpInvalid value.
+
+package p
+
+type T struct {
+	num int64
+}
+
+func foo(vs map[T]struct{}, d T) error {
+	_, ok := vs[d]
+	if !ok {
+		return nil
+	}
+
+	switch d.num {
+	case 0:
+	case 1:
+	case 2:
+	case 3:
+	case 4:
+	case 5:
+	case 6:
+		var num float64
+		if num != 0 {
+			return nil
+		}
+	}
+
+	return nil
+}