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-rw-r--r--test/fixedbugs/issue26024.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/fixedbugs/issue26024.go b/test/fixedbugs/issue26024.go
new file mode 100644
index 0000000..78877b2
--- /dev/null
+++ b/test/fixedbugs/issue26024.go
@@ -0,0 +1,28 @@
+// compile
+// Copyright 2018 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 r
+
+// f compiles into code where no stores remain in the two successors
+// of a write barrier block; i.e., they are empty. Pre-fix, this
+// results in an unexpected input to markUnsafePoints, that expects to
+// see a pair of non-empty plain blocks.
+func f() {
+ var i int
+ var s string
+ for len(s) < len(s) {
+ i++
+ s = "a"
+ }
+ var b bool
+ var sa []string
+ for true {
+ sa = []string{""}
+ for b || i == 0 {
+ }
+ b = !b
+ _ = sa
+ }
+}