re PR tree-optimization/68541 (Path splitting causes if-conversion miss)

        PR tree-optimization/68541
        * gcc.dg/tree-ssa/split-path-2.c: Make char array explicitly signed.

From-SVN: r233208

gcc/testsuite/ChangeLog

 2016-02-08  Jeff Law  <law@redhat.com>
 
+	PR tree-optimization/68541
+	* gcc.dg/tree-ssa/split-path-2.c: Make char array explicitly signed.
+
         PR tree-optimization/65917
 	* gcc.dg/tree-ssa/20030922-2.c: No longer xfailed.
 

gcc/testsuite/gcc.dg/tree-ssa/split-path-2.c

@@ -2,7 +2,7 @@
 /* { dg-options "-O2 -fsplit-paths -fdump-tree-split-paths-details " } */
 
 int
-foo(char *p, int n)
+foo(signed char *p, int n)
 {
   int s = 0;
   int i;