dbxout.c (dbxout_init): Use xcalloc instead of xmalloc+bzero.

	* dbxout.c (dbxout_init): Use xcalloc instead of xmalloc+bzero.
	* dwarf2out.c (dwarf2out_frame_init): Likewise.
	* final.c (shorten_branches): Likewise.
	* global.c (global_alloc): Likewise.
	* haifa-sched.c (build_control_flow): Likewise.
	* stmt.c (check_for_full_enumeration_handling): Likewise.
	(estimate_case_costs): Likewise.

From-SVN: r29091

gcc/dbxout.c

@@ -381,8 +381,7 @@ dbxout_init (asm_file, input_file_name, syms)
   asmfile = asm_file;
 
   typevec_len = 100;
-  typevec = (struct typeinfo *) xmalloc (typevec_len * sizeof typevec[0]);
-  bzero ((char *) typevec, typevec_len * sizeof typevec[0]);
+  typevec = (struct typeinfo *) xcalloc (typevec_len, sizeof typevec[0]);
 
   /* Convert Ltext into the appropriate format for local labels in case
      the system doesn't insert underscores in front of user generated

gcc/dwarf2out.c

@@ -1985,9 +1985,7 @@ void
 dwarf2out_frame_init ()
 {
   /* Allocate the initial hunk of the fde_table.  */
-  fde_table
-    = (dw_fde_ref) xmalloc (FDE_TABLE_INCREMENT * sizeof (dw_fde_node));
-  bzero ((char *) fde_table, FDE_TABLE_INCREMENT * sizeof (dw_fde_node));
+  fde_table = (dw_fde_ref) xcalloc (FDE_TABLE_INCREMENT, sizeof (dw_fde_node));
   fde_table_allocated = FDE_TABLE_INCREMENT;
   fde_table_in_use = 0;
 
@@ -10016,8 +10014,7 @@ dwarf2out_init (asm_out_file, main_input_filename)
   primary_filename = main_input_filename;
 
   /* Allocate the initial hunk of the file_table.  */
-  file_table = (char **) xmalloc (FILE_TABLE_INCREMENT * sizeof (char *));
-  bzero ((char *) file_table, FILE_TABLE_INCREMENT * sizeof (char *));
+  file_table = (char **) xcalloc (FILE_TABLE_INCREMENT, sizeof (char *));
   file_table_allocated = FILE_TABLE_INCREMENT;
 
   /* Skip the first entry - file numbers begin at 1.  */
@@ -10025,37 +10022,29 @@ dwarf2out_init (asm_out_file, main_input_filename)
 
   /* Allocate the initial hunk of the decl_die_table.  */
   decl_die_table
-    = (dw_die_ref *) xmalloc (DECL_DIE_TABLE_INCREMENT * sizeof (dw_die_ref));
-  bzero ((char *) decl_die_table,
-	 DECL_DIE_TABLE_INCREMENT * sizeof (dw_die_ref));
+    = (dw_die_ref *) xcalloc (DECL_DIE_TABLE_INCREMENT, sizeof (dw_die_ref));
   decl_die_table_allocated = DECL_DIE_TABLE_INCREMENT;
   decl_die_table_in_use = 0;
 
   /* Allocate the initial hunk of the decl_scope_table.  */
   decl_scope_table
-    = (decl_scope_node *) xmalloc (DECL_SCOPE_TABLE_INCREMENT
-				   * sizeof (decl_scope_node));
-  bzero ((char *) decl_scope_table,
-	 DECL_SCOPE_TABLE_INCREMENT * sizeof (decl_scope_node));
+    = (decl_scope_node *) xcalloc (DECL_SCOPE_TABLE_INCREMENT,
+				   sizeof (decl_scope_node));
   decl_scope_table_allocated = DECL_SCOPE_TABLE_INCREMENT;
   decl_scope_depth = 0;
 
   /* Allocate the initial hunk of the abbrev_die_table.  */
   abbrev_die_table
-    = (dw_die_ref *) xmalloc (ABBREV_DIE_TABLE_INCREMENT
-			      * sizeof (dw_die_ref));
-  bzero ((char *) abbrev_die_table,
-	 ABBREV_DIE_TABLE_INCREMENT * sizeof (dw_die_ref));
+    = (dw_die_ref *) xcalloc (ABBREV_DIE_TABLE_INCREMENT,
+			      sizeof (dw_die_ref));
   abbrev_die_table_allocated = ABBREV_DIE_TABLE_INCREMENT;
   /* Zero-th entry is allocated, but unused */
   abbrev_die_table_in_use = 1;
 
   /* Allocate the initial hunk of the line_info_table.  */
   line_info_table
-    = (dw_line_info_ref) xmalloc (LINE_INFO_TABLE_INCREMENT
-				  * sizeof (dw_line_info_entry));
-  bzero ((char *) line_info_table,
-	 LINE_INFO_TABLE_INCREMENT * sizeof (dw_line_info_entry));
+    = (dw_line_info_ref) xcalloc (LINE_INFO_TABLE_INCREMENT,
+				  sizeof (dw_line_info_entry));
   line_info_table_allocated = LINE_INFO_TABLE_INCREMENT;
   /* Zero-th entry is allocated, but unused */
   line_info_table_in_use = 1;

gcc/final.c

@@ -1025,10 +1025,8 @@ shorten_branches (first)
 
   max_labelno = max_label_num ();
   min_labelno = get_first_label_num ();
-  label_align = (struct label_alignment *) xmalloc (
-    (max_labelno - min_labelno + 1) * sizeof (struct label_alignment));
-  bzero ((char *) label_align,
-    (max_labelno - min_labelno + 1) * sizeof (struct label_alignment));
+  label_align = (struct label_alignment **)
+    xcalloc ((max_labelno - min_labelno + 1), sizeof (struct label_alignment));
 
   uid_shuid = (int *) xmalloc (max_uid * sizeof *uid_shuid);
 
@@ -1148,24 +1146,19 @@ shorten_branches (first)
 
   /* Allocate the rest of the arrays.  */
   insn_lengths = (short *) xmalloc (max_uid * sizeof (short));
-  insn_addresses = (int *) xmalloc (max_uid * sizeof (int));
   insn_lengths_max_uid = max_uid;
   /* Syntax errors can lead to labels being outside of the main insn stream.
      Initialize insn_addresses, so that we get reproducible results.  */
-  bzero ((char *)insn_addresses, max_uid * sizeof *insn_addresses);
-  uid_align = (rtx *) xmalloc (max_uid * sizeof *uid_align);
+  insn_addresses = (int *) xcalloc (max_uid, sizeof (int));
 
-  varying_length = (char *) xmalloc (max_uid * sizeof (char));
-
-  bzero (varying_length, max_uid);
+  varying_length = (char *) xcalloc (max_uid, sizeof (char));
 
   /* Initialize uid_align.  We scan instructions
      from end to start, and keep in align_tab[n] the last seen insn
      that does an alignment of at least n+1, i.e. the successor
      in the alignment chain for an insn that does / has a known
      alignment of n.  */
-
-  bzero ((char *) uid_align, max_uid * sizeof *uid_align);
+  uid_align = (rtx *) xcalloc (max_uid, sizeof *uid_align);
 
   for (i = MAX_CODE_ALIGN; --i >= 0; )
     align_tab[i] = NULL_RTX;

gcc/global.c

@@ -486,10 +486,8 @@ global_alloc (file)
   /* We used to use alloca here, but the size of what it would try to
      allocate would occasionally cause it to exceed the stack limit and
      cause unpredictable core dumps.  Some examples were > 2Mb in size.  */
-  conflicts = (INT_TYPE *) xmalloc (max_allocno * allocno_row_words
-				    * sizeof (INT_TYPE));
-  bzero ((char *) conflicts,
-	 max_allocno * allocno_row_words * sizeof (INT_TYPE));
+  conflicts = (INT_TYPE *) xcalloc (max_allocno * allocno_row_words,
+				    sizeof (INT_TYPE));
 
   allocnos_live = (INT_TYPE *) alloca (allocno_row_words * sizeof (INT_TYPE));
 

gcc/haifa-sched.c

@@ -1085,13 +1085,9 @@ build_control_flow (s_preds, s_succs, num_preds, num_succs)
   /* Account for entry/exit edges.  */
   nr_edges += 2;
 
-  in_edges = (int *) xmalloc (n_basic_blocks * sizeof (int));
-  out_edges = (int *) xmalloc (n_basic_blocks * sizeof (int));
-  bzero ((char *) in_edges, n_basic_blocks * sizeof (int));
-  bzero ((char *) out_edges, n_basic_blocks * sizeof (int));
-
-  edge_table = (haifa_edge *) xmalloc ((nr_edges) * sizeof (haifa_edge));
-  bzero ((char *) edge_table, ((nr_edges) * sizeof (haifa_edge)));
+  in_edges = (int *) xcalloc (n_basic_blocks, sizeof (int));
+  out_edges = (int *) xcalloc (n_basic_blocks, sizeof (int));
+  edge_table = (haifa_edge *) xcalloc (nr_edges, sizeof (haifa_edge));
 
   nr_edges = 0;
   for (i = 0; i < n_basic_blocks; i++)

gcc/stmt.c

@@ -4900,12 +4900,11 @@ check_for_full_enumeration_handling (type)
   bytes_needed = (size + HOST_BITS_PER_CHAR) / HOST_BITS_PER_CHAR;
 
   if (size > 0 && size < 600000
-      /* We deliberately use malloc here - not xmalloc.  */
-      && (cases_seen = (unsigned char *) malloc (bytes_needed)) != NULL)
+      /* We deliberately use calloc here - not xcalloc.  */
+      && (cases_seen = (unsigned char *) calloc (bytes_needed, 1)) != NULL)
     {
       long i;
       tree v = TYPE_VALUES (type);
-      bzero (cases_seen, bytes_needed);
 
       /* The time complexity of this code is normally O(N), where
 	 N being the number of members in the enumerated type.
@@ -5469,8 +5468,7 @@ estimate_case_costs (node)
 
   if (cost_table == NULL)
     {
-      cost_table = ((short *) xmalloc (129 * sizeof (short))) + 1;
-      bzero ((char *) (cost_table - 1), 129 * sizeof (short));
+      cost_table = ((short *) xcalloc (129, sizeof (short))) + 1;
 
       for (i = 0; i < 128; i++)
 	{