Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 25 insertions, 0 deletions

diff --git a/test/fixedbugs/issue26105.go b/test/fixedbugs/issue26105.go
new file mode 100644
index 0000000..88a5f16
--- /dev/null
+++ b/test/fixedbugs/issue26105.go
@@ -0,0 +1,25 @@
+// 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.
+
+// Triggers a bug in writebarrier, which inserts one
+// between (first block) OpAddr x and (second block) a VarDef x,
+// which are then in the wrong order and unable to be
+// properly scheduled.
+
+package q
+
+var S interface{}
+
+func F(n int) {
+	fun := func(x int) int {
+		S = 1
+		return n
+	}
+	i := fun(([]int{})[n])
+
+	var fc [2]chan int
+	S = (([1][2]chan int{fc})[i][i])
+}