Add guality testcase for RTL alias analysis fix

gcc/testsuite/
	* gcc.dg/guality/param-6.c: New test.

diff --git a/gcc/testsuite/gcc.dg/guality/param-6.c b/gcc/testsuite/gcc.dg/guality/param-6.c
new file mode 100644 (file)
index 0000000..9c4ba5c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/guality/param-6.c
@@ -0,0 +1,20 @@
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-g" } */
+
+void __attribute__((noipa)) bar (void *p)
+{}
+
+void __attribute__((noipa)) foo (int i)
+{
+  void *p = __builtin_alloca (i);
+
+  asm volatile ("" : : : "ebx");
+
+  bar (p); /* { dg-final { gdb-test . "i" "5" } } */
+}
+
+int main (void)
+{
+  foo (5);
+  return 0;
+}