Use __builtin_alloca in gcc.dg/fstack-protector-strong.c

	* gcc.dg/fstack-protector-strong.c: Don't include <stdlib.h>.
	(alloca): Remove declaration.
	(foo9): Replace alloca by __builtin_alloca.

From-SVN: r198883

gcc/testsuite/ChangeLog

+2013-05-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gcc.dg/fstack-protector-strong.c: Don't include <stdlib.h>.
+	(alloca): Remove declaration.
+	(foo9): Replace alloca by __builtin_alloca.
+
 2013-05-14  Joern Rennecke <joern.rennecke@embecosm.com>
 
 	* testsuite/gcc.c-torture/compile/limits-externdecl.c [target avr-*-*]:

gcc/testsuite/gcc.dg/fstack-protector-strong.c

@@ -4,9 +4,6 @@
 /* { dg-options "-O2 -fstack-protector-strong" } */
 
 #include<string.h>
-#include<stdlib.h>
-
-extern void *alloca(__SIZE_TYPE__);
 
 extern int g0;
 extern int* pg0;
@@ -112,7 +109,7 @@ foo8 ()
 int
 foo9 ()
 {
-  char* p = alloca (100);
+  char* p = __builtin_alloca (100);
   return goo ((int *)(p + 50));
 }