stack-check-16.c: New test.

	* gcc.dg/stack-check-16.c: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r256896

gcc/testsuite/ChangeLog

+2018-01-19  Jeff Law  <law@redhat.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.dg/stack-check-16.c: New test.
+
 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
 
 	PR target/83790

gcc/testsuite/gcc.dg/stack-check-16.c

+/* { dg-do compile } */
+/* { dg-options "-fstack-clash-protection" } */
+/* { dg-require-effective-target supports_stack_clash_protection } */
+
+int printf (const char *, ...);
+void blah (char *space) { }
+void mtrace (void);
+
+int do_test (void)
+{
+    blah (__builtin_alloca (10));
+    mtrace ();
+    printf (
+#define A(a) "%" #a "$s"
+#define B(a) A(a)
+#define C(a,b,c,d) B(a##b##c##d)
+#define D(a,b,c) C(a,b,c,1) C(a,b,c,2) C(a,b,c,3) C(a,b,c,4) C(a,b,c,5) \
+		 C(a,b,c,6) C(a,b,c,7) C(a,b,c,8) C(a,b,c,9)
+#define E(a,b,c) C(a,b,c,0) D(a,b,c)
+#define F(a,b) E(a,b,1) E(a,b,2) E(a,b,3) E(a,b,4) E(a,b,5) \
+	       E(a,b,6) E(a,b,7) E(a,b,8) E(a,b,9)
+#define G(a,b) E(a,b,0) F(a,b)
+#define H(a) G(a,1) G(a,2) G(a,3) G(a,4) G(a,5) G(a,6) G(a,7) G(a,8) G(a,9)
+#define I(a) G(a,0) H(a)
+#define J I(1) I(2) I(3) I(4) I(5) I(6) I(7) I(8) I(9)
+	    D(,,)
+	    F(,)
+	    H()
+	    J
+	    C(10,0,0,0) C(10,0,0,1),
+#undef A
+#define A(a) "a",
+	    I(0) J
+	    "\n");
+  return 0;
+}