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-rw-r--r--test/chan/select8.go55
1 files changed, 55 insertions, 0 deletions
diff --git a/test/chan/select8.go b/test/chan/select8.go
new file mode 100644
index 0000000..20bca3a
--- /dev/null
+++ b/test/chan/select8.go
@@ -0,0 +1,55 @@
+// run
+
+// Copyright 2019 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.
+
+// Test break statements in a select.
+// Gccgo had a bug in handling this.
+// Test 1,2,3-case selects, so it covers both the general
+// code path and the specialized optimizations for one-
+// and two-case selects.
+
+package main
+
+var ch = make(chan int)
+
+func main() {
+ go func() {
+ for {
+ ch <- 5
+ }
+ }()
+
+ select {
+ case <-ch:
+ break
+ panic("unreachable")
+ }
+
+ select {
+ default:
+ break
+ panic("unreachable")
+ }
+
+ select {
+ case <-ch:
+ break
+ panic("unreachable")
+ default:
+ break
+ panic("unreachable")
+ }
+
+ select {
+ case <-ch:
+ break
+ panic("unreachable")
+ case ch <- 10:
+ panic("unreachable")
+ default:
+ break
+ panic("unreachable")
+ }
+}