A bit of walk_gimple_op maintenance.

	* gimple-walk.c (walk_gimple_op) <GIMPLE_OMP_FOR>: Also check
	intermediate walk_tree results for for_incr.
	<GIMPLE_OMP_TARGET>: Walk child_fn and data_arg, too.
	<GIMPLE_OMP_CRITICAL, GIMPLE_OMP_ATOMIC_STORE>: Pretty printing.

From-SVN: r218686

gcc/ChangeLog

+2014-12-12  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* gimple-walk.c (walk_gimple_op) <GIMPLE_OMP_FOR>: Also check
+	intermediate walk_tree results for for_incr.
+	<GIMPLE_OMP_TARGET>: Walk child_fn and data_arg, too.
+	<GIMPLE_OMP_CRITICAL, GIMPLE_OMP_ATOMIC_STORE>: Pretty printing.
+
 2014-12-12  Richard Sandiford  <richard.sandiford@arm.com>
 
 	PR middle-end/64182

gcc/gimple-walk.c

@@ -321,11 +321,13 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
       break;
 
     case GIMPLE_OMP_CRITICAL:
-      ret = walk_tree (gimple_omp_critical_name_ptr (
-			 as_a <gomp_critical *> (stmt)),
-		       callback_op, wi, pset);
-      if (ret)
-	return ret;
+      {
+	gomp_critical *omp_stmt = as_a <gomp_critical *> (stmt);
+	ret = walk_tree (gimple_omp_critical_name_ptr (omp_stmt),
+			 callback_op, wi, pset);
+	if (ret)
+	  return ret;
+      }
       break;
 
     case GIMPLE_OMP_FOR:
@@ -349,9 +351,9 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
 	    return ret;
 	  ret = walk_tree (gimple_omp_for_incr_ptr (stmt, i), callback_op,
 			   wi, pset);
+	  if (ret)
+	    return ret;
 	}
-      if (ret)
-	return ret;
       break;
 
     case GIMPLE_OMP_PARALLEL:
@@ -404,7 +406,6 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
 		       wi, pset);
       if (ret)
 	return ret;
-
       ret = walk_tree (gimple_omp_sections_control_ptr (stmt), callback_op,
 		       wi, pset);
       if (ret)
@@ -420,10 +421,21 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
       break;
 
     case GIMPLE_OMP_TARGET:
-      ret = walk_tree (gimple_omp_target_clauses_ptr (stmt), callback_op, wi,
-		       pset);
-      if (ret)
-	return ret;
+      {
+	gomp_target *omp_stmt = as_a <gomp_target *> (stmt);
+	ret = walk_tree (gimple_omp_target_clauses_ptr (omp_stmt),
+			 callback_op, wi, pset);
+	if (ret)
+	  return ret;
+	ret = walk_tree (gimple_omp_target_child_fn_ptr (omp_stmt),
+			 callback_op, wi, pset);
+	if (ret)
+	  return ret;
+	ret = walk_tree (gimple_omp_target_data_arg_ptr (omp_stmt),
+			 callback_op, wi, pset);
+	if (ret)
+	  return ret;
+      }
       break;
 
     case GIMPLE_OMP_TEAMS:
@@ -440,7 +452,6 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
 			 callback_op, wi, pset);
 	if (ret)
 	  return ret;
-
 	ret = walk_tree (gimple_omp_atomic_load_rhs_ptr (omp_stmt),
 			 callback_op, wi, pset);
 	if (ret)
@@ -449,11 +460,13 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op,
       break;
 
     case GIMPLE_OMP_ATOMIC_STORE:
-      ret = walk_tree (gimple_omp_atomic_store_val_ptr (
-		         as_a <gomp_atomic_store *> (stmt)),
-		       callback_op, wi, pset);
-      if (ret)
-	return ret;
+      {
+	gomp_atomic_store *omp_stmt = as_a <gomp_atomic_store *> (stmt);
+	ret = walk_tree (gimple_omp_atomic_store_val_ptr (omp_stmt),
+			 callback_op, wi, pset);
+	if (ret)
+	  return ret;
+      }
       break;
 
     case GIMPLE_TRANSACTION: