--- a/gcc/fortran/dependency.c	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/fortran/dependency.c	Thu Oct 25 07:37:49 2018 +0900
@@ -1,5 +1,5 @@
 /* Dependency analysis
-   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   Copyright (C) 2000-2018 Free Software Foundation, Inc.
    Contributed by Paul Brook <paul@nowt.org>
 
 This file is part of GCC.
@@ -240,7 +240,7 @@
 	      /* Special case: String arguments which compare equal can have
 		 different lengths, which makes them different in calls to
 		 procedures.  */
-	      
+
 	      if (e1->expr_type == EXPR_CONSTANT
 		  && e1->ts.type == BT_CHARACTER
 		  && e2->expr_type == EXPR_CONSTANT
@@ -1431,17 +1431,17 @@
   r_stride = r_ar->stride[n];
 
   /* If l_start is NULL take it from array specifier.  */
-  if (NULL == l_start && IS_ARRAY_EXPLICIT (l_ar->as))
+  if (l_start == NULL && IS_ARRAY_EXPLICIT (l_ar->as))
     l_start = l_ar->as->lower[n];
   /* If l_end is NULL take it from array specifier.  */
-  if (NULL == l_end && IS_ARRAY_EXPLICIT (l_ar->as))
+  if (l_end == NULL && IS_ARRAY_EXPLICIT (l_ar->as))
     l_end = l_ar->as->upper[n];
 
   /* If r_start is NULL take it from array specifier.  */
-  if (NULL == r_start && IS_ARRAY_EXPLICIT (r_ar->as))
+  if (r_start == NULL && IS_ARRAY_EXPLICIT (r_ar->as))
     r_start = r_ar->as->lower[n];
   /* If r_end is NULL take it from array specifier.  */
-  if (NULL == r_end && IS_ARRAY_EXPLICIT (r_ar->as))
+  if (r_end == NULL && IS_ARRAY_EXPLICIT (r_ar->as))
     r_end = r_ar->as->upper[n];
 
   /* Determine whether the l_stride is positive or negative.  */
@@ -1907,7 +1907,7 @@
 /* Determine if an array ref, usually an array section specifies the
    entire array.  In addition, if the second, pointer argument is
    provided, the function will return true if the reference is
-   contiguous; eg. (:, 1) gives true but (1,:) gives false. 
+   contiguous; eg. (:, 1) gives true but (1,:) gives false.
    If one of the bounds depends on a dummy variable which is
    not INTENT(IN), also return false, because the user may
    have changed the variable.  */