[committed] Fix a warning in omp-low.c

[committed] Fix a warning in omp-low.c

[Jakub Jelinek]

Hi!

This fixes a warning in mark_loops_in_oacc_kernels_region.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk.

2016-01-17  Jakub Jelinek  <jakub@redhat.com>

	* omp-low.c (mark_loops_in_oacc_kernels_region): Work around
	-Wmaybe-uninitialized warning.

--- gcc/omp-low.c.jj	2016-01-14 22:31:22.000000000 +0100
+++ gcc/omp-low.c	2016-01-16 11:30:49.321974885 +0100
@@ -12539,7 +12539,7 @@ mark_loops_in_oacc_kernels_region (basic
   /* Don't parallelize the kernels region if it contains more than one outer
      loop.  */
   unsigned int nr_outer_loops = 0;
-  struct loop *single_outer;
+  struct loop *single_outer = NULL;
   for (struct loop *loop = outer->inner; loop != NULL; loop = loop->next)
     {
       gcc_assert (loop_outer (loop) == outer);

	Jakub

[committed] Fix a warning in omp-low.c

[Jakub Jelinek]

Hi!

richi reported a warning in omp-low.c with some configure options (forgot
which), this patch ensures we don't warn.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk.

2016-01-21  Jakub Jelinek  <jakub@redhat.com>

	* omp-low.c (expand_omp_target): Avoid -Wmaybe-uninitialized
	warning.  Fix up formatting.

--- gcc/omp-low.c.jj	2016-01-19 09:20:27.000000000 +0100
+++ gcc/omp-low.c	2016-01-19 11:37:05.053243550 +0100
@@ -13033,21 +13033,20 @@ expand_omp_target (struct omp_region *re
 						     GOMP_ASYNC_SYNC));
 	if (tagging && t_async)
 	  {
-	    unsigned HOST_WIDE_INT i_async;
+	    unsigned HOST_WIDE_INT i_async = GOMP_LAUNCH_OP_MAX;
 
 	    if (TREE_CODE (t_async) == INTEGER_CST)
 	      {
 		/* See if we can pack the async arg in to the tag's
 		   operand.  */
 		i_async = TREE_INT_CST_LOW (t_async);
-
 		if (i_async < GOMP_LAUNCH_OP_MAX)
 		  t_async = NULL_TREE;
+		else
+		  i_async = GOMP_LAUNCH_OP_MAX;
 	      }
-	    if (t_async)
-	      i_async = GOMP_LAUNCH_OP_MAX;
-	    args.safe_push (oacc_launch_pack
-			    (GOMP_LAUNCH_ASYNC, NULL_TREE, i_async));
+	    args.safe_push (oacc_launch_pack (GOMP_LAUNCH_ASYNC, NULL_TREE,
+					      i_async));
 	  }
 	if (t_async)
 	  args.safe_push (t_async);

	Jakub