Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 33 insertions, 0 deletions

diff --git a/test/fixedbugs/issue29735.go b/test/fixedbugs/issue29735.go
new file mode 100644
index 0000000..7a0381d
--- /dev/null
+++ b/test/fixedbugs/issue29735.go
@@ -0,0 +1,33 @@
+// 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.
+
+// Make sure FuncForPC won't panic when given a pc which
+// lies between two functions.
+
+package main
+
+import (
+	"runtime"
+)
+
+func main() {
+	var stack [1]uintptr
+	runtime.Callers(1, stack[:])
+	f() // inlined function, to give main some inlining info
+	for i := uintptr(0); true; i++ {
+		f := runtime.FuncForPC(stack[0] + i)
+		if f.Name() != "main.main" && f.Name() != "main.f" {
+			// Reached next function successfully.
+			break
+		}
+	}
+}
+
+func f() {
+	sink = 0 // one instruction which can't be removed
+}
+
+var sink int