1 files changed, 28 insertions, 28 deletions

diff --git a/gcc/analyzer/region.cc b/gcc/analyzer/region.cc
index efbbca0..e27fc6e 100644
--- a/gcc/analyzer/region.cc
+++ b/gcc/analyzer/region.cc
@@ -124,7 +124,7 @@ region_offset::dump (bool simple) const
 }
 
 /* An svalue that matches the pattern (BASE * FACTOR) + OFFSET
-   where FACTOR or OFFSET could be the identity (represented as NULL).  */
+   where FACTOR or OFFSET could be the identity (represented as nullptr).  */
 
 struct linear_op
 {
@@ -231,7 +231,7 @@ struct linear_op
 	    {
 	      *out = linear_op (binop_sval.get_arg0 (),
 				binop_sval.get_arg1 (),
-				NULL);
+				nullptr);
 	      return true;
 	    }
 	  else if (binop_sval.get_op () == PLUS_EXPR)
@@ -250,7 +250,7 @@ struct linear_op
 		}
 
 	      *out = linear_op (binop_sval.get_arg0 (),
-				NULL,
+				nullptr,
 				binop_sval.get_arg1 ());
 	      return true;
 	    }
@@ -276,8 +276,8 @@ operator< (const region_offset &a, const region_offset &b)
 	  const svalue &a_sval = *a.get_symbolic_byte_offset ();
 	  const svalue &b_sval = *b.get_symbolic_byte_offset ();
 
-	  linear_op op_a (NULL, NULL, NULL);
-	  linear_op op_b (NULL, NULL, NULL);
+	  linear_op op_a (nullptr, nullptr, nullptr);
+	  linear_op op_b (nullptr, nullptr, nullptr);
 	  if (linear_op::from_svalue (a_sval, &op_a)
 	      && linear_op::from_svalue (b_sval, &op_b))
 	    {
@@ -318,8 +318,8 @@ operator<= (const region_offset &a, const region_offset &b)
 	  const svalue &a_sval = *a.get_symbolic_byte_offset ();
 	  const svalue &b_sval = *b.get_symbolic_byte_offset ();
 
-	  linear_op op_a (NULL, NULL, NULL);
-	  linear_op op_b (NULL, NULL, NULL);
+	  linear_op op_a (nullptr, nullptr, nullptr);
+	  linear_op op_b (nullptr, nullptr, nullptr);
 	  if (linear_op::from_svalue (a_sval, &op_a)
 	      && linear_op::from_svalue (b_sval, &op_b))
 	    {
@@ -448,7 +448,7 @@ region::descendent_of_p (const region *elder) const
 }
 
 /* If this region is a frame_region, or a descendent of one, return it.
-   Otherwise return NULL.  */
+   Otherwise return nullptr.  */
 
 const frame_region *
 region::maybe_get_frame_region () const
@@ -460,7 +460,7 @@ region::maybe_get_frame_region () const
 	return frame_reg;
       iter = iter->get_parent_region ();
     }
-  return NULL;
+  return nullptr;
 }
 
 /* Get the memory space of this region.  */
@@ -609,7 +609,7 @@ region::calc_initial_value_at_main (region_model_manager *mgr) const
 }
 
 /* If this region is a decl_region, return the decl.
-   Otherwise return NULL.  */
+   Otherwise return NULL_TREE.  */
 
 tree
 region::maybe_get_decl () const
@@ -769,7 +769,7 @@ get_field_at_bit_offset (tree record_type, bit_offset_t bit_offset)
 {
   gcc_assert (TREE_CODE (record_type) == RECORD_TYPE);
   if (bit_offset < 0)
-    return NULL;
+    return nullptr;
 
   /* Find the first field that has an offset > BIT_OFFSET,
      then return the one preceding it.
@@ -879,7 +879,7 @@ region::calc_offset (region_model_manager *mgr) const
 {
   const region *iter_region = this;
   bit_offset_t accum_bit_offset = 0;
-  const svalue *accum_byte_sval = NULL;
+  const svalue *accum_byte_sval = nullptr;
 
   while (iter_region)
     {
@@ -1155,7 +1155,7 @@ region::is_named_decl_p (const char *decl_name) const
 region::region (complexity c, symbol::id_t id, const region *parent, tree type)
 : symbol (c, id),
   m_parent (parent), m_type (type),
-  m_cached_offset (NULL), m_cached_init_sval_at_main (NULL)
+  m_cached_offset (nullptr), m_cached_init_sval_at_main (nullptr)
 {
   gcc_assert (type == NULL_TREE || TYPE_P (type));
 }
@@ -1548,7 +1548,7 @@ heap_region::print_dump_widget_label (pretty_printer *pp) const
 /* root_region's ctor.  */
 
 root_region::root_region (symbol::id_t id)
-: region (complexity (1, 1), id, NULL, NULL_TREE)
+: region (complexity (1, 1), id, nullptr, NULL_TREE)
 {
 }
 
@@ -1680,7 +1680,7 @@ decl_region::print_dump_widget_label (pretty_printer *pp) const
 int
 decl_region::get_stack_depth () const
 {
-  if (get_parent_region () == NULL)
+  if (get_parent_region () == nullptr)
     return 0;
   if (const frame_region *frame_reg
 	= get_parent_region ()->dyn_cast_frame_region ())
@@ -1690,7 +1690,7 @@ decl_region::get_stack_depth () const
 
 /* If the underlying decl is in the global constant pool,
    return an svalue representing the constant value.
-   Otherwise return NULL.  */
+   Otherwise return nullptr.  */
 
 const svalue *
 decl_region::maybe_get_constant_value (region_model_manager *mgr) const
@@ -1700,7 +1700,7 @@ decl_region::maybe_get_constant_value (region_model_manager *mgr) const
       && DECL_INITIAL (m_decl)
       && TREE_CODE (DECL_INITIAL (m_decl)) == CONSTRUCTOR)
     return get_svalue_for_constructor (DECL_INITIAL (m_decl), mgr);
-  return NULL;
+  return nullptr;
 }
 
 /* Implementation of decl_region::get_svalue_for_constructor
@@ -1742,7 +1742,7 @@ decl_region::get_svalue_for_constructor (tree ctor,
    "main" (either based on DECL_INITIAL, or implicit initialization to
    zero.
 
-   Return NULL if there is a problem.  */
+   Return nullptr if there is a problem.  */
 
 const svalue *
 decl_region::get_svalue_for_initializer (region_model_manager *mgr) const
@@ -1753,10 +1753,10 @@ decl_region::get_svalue_for_initializer (region_model_manager *mgr) const
       /* If we have an "extern" decl then there may be an initializer in
 	 another TU.  */
       if (DECL_EXTERNAL (m_decl))
-	return NULL;
+	return nullptr;
 
       if (empty_p ())
-	return NULL;
+	return nullptr;
 
       /* Implicit initialization to zero; use a compound_svalue for it.
 	 Doing so requires that we have a concrete binding for this region,
@@ -1765,12 +1765,12 @@ decl_region::get_svalue_for_initializer (region_model_manager *mgr) const
       const binding_key *binding
 	= binding_key::make (mgr->get_store_manager (), this);
       if (binding->symbolic_p ())
-	return NULL;
+	return nullptr;
 
       /* If we don't care about tracking the content of this region, then
 	 it's unused, and the value doesn't matter.  */
       if (!tracked_p ())
-	return NULL;
+	return nullptr;
 
       binding_cluster c (this);
       c.zero_fill_region (mgr->get_store_manager (), this);
@@ -1781,14 +1781,14 @@ decl_region::get_svalue_for_initializer (region_model_manager *mgr) const
   /* LTO can write out error_mark_node as the DECL_INITIAL for simple scalar
      values (to avoid writing out an extra section).  */
   if (init == error_mark_node)
-    return NULL;
+    return nullptr;
 
   if (TREE_CODE (init) == CONSTRUCTOR)
     return get_svalue_for_constructor (init, mgr);
 
   /* Reuse the get_rvalue logic from region_model.  */
   region_model m (mgr);
-  return m.get_rvalue (path_var (init, 0), NULL);
+  return m.get_rvalue (path_var (init, 0), nullptr);
 }
 
 /* Subroutine of symnode_requires_tracking_p; return true if REF
@@ -1802,7 +1802,7 @@ ipa_ref_requires_tracking (ipa_ref *ref)
   if (ref->use != IPA_REF_ADDR)
     return true;
 
-  if (ref->stmt == NULL)
+  if (ref->stmt == nullptr)
     return true;
 
   switch (ref->stmt->code)
@@ -1812,12 +1812,12 @@ ipa_ref_requires_tracking (ipa_ref *ref)
     case GIMPLE_CALL:
       {
 	cgraph_node *caller_cnode = dyn_cast <cgraph_node *> (ref->referring);
-	if (caller_cnode == NULL)
+	if (caller_cnode == nullptr)
 	  return true;
 	cgraph_edge *edge = caller_cnode->get_edge (ref->stmt);
 	if (!edge)
 	  return true;
-	if (edge->callee == NULL)
+	if (edge->callee == nullptr)
 	  return true; /* e.g. call through function ptr.  */
 	if (edge->callee->definition)
 	  return true;
@@ -1852,7 +1852,7 @@ symnode_requires_tracking_p (symtab_node *symnode)
   if (symnode->externally_visible)
     return true;
   tree context_fndecl = DECL_CONTEXT (symnode->decl);
-  if (context_fndecl == NULL)
+  if (context_fndecl == nullptr)
     return true;
   if (TREE_CODE (context_fndecl) != FUNCTION_DECL)
     return true;