obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 72 insertions, 0 deletions

diff --git a/gcc/testsuite/go.test/test/stack.go b/gcc/testsuite/go.test/test/stack.go
new file mode 100644
index 000000000..816b555a4
--- /dev/null
+++ b/gcc/testsuite/go.test/test/stack.go
@@ -0,0 +1,72 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2009 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.
+
+// Try to tickle stack splitting bugs by doing
+// go, defer, and closure calls at different stack depths.
+
+package main
+
+type T [20]int
+
+func g(c chan int, t T) {
+	s := 0
+	for i := 0; i < len(t); i++ {
+		s += t[i]
+	}
+	c <- s
+}
+
+func d(t T) {
+	s := 0
+	for i := 0; i < len(t); i++ {
+		s += t[i]
+	}
+	if s != len(t) {
+		println("bad defer", s)
+		panic("fail")
+	}
+}
+
+var c = make(chan int)
+var t T
+var b = []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
+
+func recur(n int) {
+	ss := string(b)
+	if len(ss) != len(b) {
+		panic("bad []byte -> string")
+	}
+	go g(c, t)
+	s := <-c
+	if s != len(t) {
+		println("bad go", s)
+		panic("fail")
+	}
+	f := func(t T) int {
+		s := 0
+		for i := 0; i < len(t); i++ {
+			s += t[i]
+		}
+		s += n
+		return s
+	}
+	s = f(t)
+	if s != len(t)+n {
+		println("bad func", s, "at level", n)
+		panic("fail")
+	}
+	if n > 0 {
+		recur(n - 1)
+	}
+	defer d(t)
+}
+
+func main() {
+	for i := 0; i < len(t); i++ {
+		t[i] = 1
+	}
+	recur(8000)
+}