1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/stackalign/builtin-return-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/stackalign/builtin-return-1.c
new file mode 100644
index 000000000..75c9acdf7
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/stackalign/builtin-return-1.c
@@ -0,0 +1,34 @@
+/* PR middle-end/11151 */
+/* Originator: Andrew Church <gcczilla@achurch.org> */
+/* { dg-do run } */
+
+/* This used to fail on SPARC because the (undefined) return
+   value of 'bar' was overwriting that of 'foo'.  */
+
+extern void abort(void);
+
+int foo(int n)
+{
+  return n+1;
+}
+
+int bar(int n)
+{
+  __builtin_return(__builtin_apply((void (*)(void))foo, __builtin_apply_args(), 64));
+}
+
+char *g;
+
+int main(void)
+{
+  /* Allocate 64 bytes on the stack to make sure that __builtin_apply
+     can read at least 64 bytes above the return address.  */
+  char dummy[64];
+
+  g = dummy;
+
+  if (bar(1) != 2)
+    abort();
+
+  return 0;
+}