Update outer-4.c and uns-outer-4.c

2015-07-27  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/autopar/outer-4.c (parloop): Remove superfluous noinline
	attribute.  Update comment.
	(main): Remove.
	Add scan for not parallelizing inner loop.
	* gcc.dg/autopar/uns-outer-4.c (parloop): Remove superfluous noinline
	attribute.
	(main): Remove.

From-SVN: r226269

gcc/testsuite/ChangeLog

+2015-07-27  Tom de Vries  <tom@codesourcery.com>
+
+	* gcc.dg/autopar/outer-4.c (parloop): Remove superfluous noinline
+	attribute.  Update comment.
+	(main): Remove.
+	Add scan for not parallelizing inner loop.
+	* gcc.dg/autopar/uns-outer-4.c (parloop): Remove superfluous noinline
+	attribute.
+	(main): Remove.
+
 2015-07-27  Marek Polacek  <polacek@redhat.com>
 
 	PR bootstrap/67030

gcc/testsuite/gcc.dg/autopar/outer-4.c

@@ -6,15 +6,16 @@ void abort (void);
 int g_sum=0;
 int x[500][500];
 
-__attribute__((noinline))
-void parloop (int N)
+void
+parloop (int N)
 {
   int i, j;
   int sum;
 
-  /* Double reduction is currently not supported, outer loop is not 
-     parallelized.  Inner reduction is detected, inner loop is 
-     parallelized.  */
+  /* The inner reduction is not recognized as reduction because we cannot assume
+     that int wraps on overflow.  The way to fix this is to implement the
+     reduction operation in unsigned type, but we've not yet implemented
+     this.  */
   sum = 0;
   for (i = 0; i < N; i++)
     for (j = 0; j < N; j++)
@@ -23,13 +24,7 @@ void parloop (int N)
   g_sum = sum;
 }
 
-int main(void)
-{
-  parloop(500);
-
-  return 0;
-}
-
 
+/* { dg-final { scan-tree-dump-times "parallelizing inner loop" 0 "parloops" } } */
 /* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" { xfail *-*-* } } } */
 /* { dg-final { scan-tree-dump-times "loopfn" 4 "optimized" { xfail *-*-* } } } */

gcc/testsuite/gcc.dg/autopar/uns-outer-4.c

@@ -6,7 +6,7 @@ void abort (void);
 unsigned int g_sum=0;
 unsigned int x[500][500];
 
-void __attribute__((noinline))
+void
 parloop (int N)
 {
   int i, j;
@@ -23,14 +23,5 @@ parloop (int N)
   g_sum = sum;
 }
 
-int
-main (void)
-{
-  parloop (500);
-
-  return 0;
-}
-
-
 /* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" { xfail *-*-* } } } */
 /* { dg-final { scan-tree-dump-times "loopfn" 4 "optimized" } } */