[PATCH][ARM] New testcase to check parameter passing bug

[Honggyu Kim <hong.gyu.kim@lge.com>]

Hi,

I have wrote a testcase that reproduces argument overwriting bug during arm
code generation.

I wrote this testcase with the help of Mikael Pettersson.
If some format is not proper to run in gcc testsuite framework, please
correct me.

Please refer to the following bugzilla link for details:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358

Honggyu
---
 gcc/testsuite/ChangeLog                |    5 +++++
 gcc/testsuite/gcc.target/arm/pr65358.c |   34 ++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/arm/pr65358.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5302dbd..9acd12a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-13  Honggyu Kim  <hong.gyu.kim@lge.com>
+
+	PR target/65235
+	* gcc.target/arm/pr65358.c: New test for sibcall argument passing bug.
+
 2015-03-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	PR rtl-optimization/65235
diff --git a/gcc/testsuite/gcc.target/arm/pr65358.c b/gcc/testsuite/gcc.target/arm/pr65358.c
new file mode 100644
index 0000000..d663dcf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr65358.c
@@ -0,0 +1,34 @@
+/* PR target/65358 */
+/* { dg-do compile { target arm*-*-* } } */
+/* { dg-options "-O2" } */
+
+struct pack
+{
+  int fine;
+  int victim;
+  int killer;
+};
+
+int __attribute__ ((__noinline__, __noclone__))
+bar (int a, int b, struct pack p)
+{
+  if (a != 20 || b != 30)
+    __builtin_abort ();
+  if (p.fine != 40 || p.victim != 50 || p.killer != 60)
+    __builtin_abort ();
+  return 0;
+}
+
+int __attribute__ ((__noinline__, __noclone__))
+foo (int arg1, int arg2, int arg3, struct pack p)
+{
+  return bar (arg2, arg3, p);
+}
+
+int main (void)
+{
+  struct pack p = { 40, 50, 60 };
+
+  (void) foo (10, 20, 30, p);
+  return 0;
+}
-- 
1.7.9.5