Better function header dump

From-SVN: r174536

gcc/ChangeLog

+2011-06-01  David Li  <davidxl@google.com>
+
+	* tree-pretty-print.c (dump_function_header): New function.
+	* final.c (rest_of_clean_state): Use header dumper.
+	* tree-cfg.c (gimple_dump_cfg): Use header dumper.
+	* passes.c (pass_init_dump_file): Use header dumper.
+
 2011-06-01  Jakub Jelinek  <jakub@redhat.com>
 
 	* dwarf2out.c (compare_loc_descriptor, scompare_loc_descriptor,

gcc/final.c

@@ -83,6 +83,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "ggc.h"
 #include "cfgloop.h"
 #include "params.h"
+#include "tree-pretty-print.h"
 
 #ifdef XCOFF_DEBUGGING_INFO
 #include "xcoffout.h"		/* Needed for external data
@@ -4360,20 +4361,7 @@ rest_of_clean_state (void)
 	}
       else
 	{
-	  const char *aname;
-	  struct cgraph_node *node = cgraph_get_node (current_function_decl);
-
-	  aname = (IDENTIFIER_POINTER
-		   (DECL_ASSEMBLER_NAME (current_function_decl)));
-	  fprintf (final_output, "\n;; Function (%s) %s\n\n", aname,
-	     node->frequency == NODE_FREQUENCY_HOT
-	     ? " (hot)"
-	     : node->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED
-	     ? " (unlikely executed)"
-	     : node->frequency == NODE_FREQUENCY_EXECUTED_ONCE
-	     ? " (executed once)"
-	     : "");
-
+	  dump_function_header (final_output, current_function_decl);
 	  flag_dump_noaddr = flag_dump_unnumbered = 1;
 	  if (flag_compare_debug_opt || flag_compare_debug)
 	    dump_flags |= TDF_NOUID;

gcc/passes.c

@@ -74,6 +74,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "lto-streamer.h"
 #include "plugin.h"
 #include "ipa-utils.h"
+#include "tree-pretty-print.h"
 
 #if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
 #include "dwarf2out.h"
@@ -1637,21 +1638,7 @@ pass_init_dump_file (struct opt_pass *pass)
       dump_file_name = get_dump_file_name (pass->static_pass_number);
       dump_file = dump_begin (pass->static_pass_number, &dump_flags);
       if (dump_file && current_function_decl)
-	{
-	  const char *dname, *aname;
-	  struct cgraph_node *node = cgraph_get_node (current_function_decl);
-	  dname = lang_hooks.decl_printable_name (current_function_decl, 2);
-	  aname = (IDENTIFIER_POINTER
-		   (DECL_ASSEMBLER_NAME (current_function_decl)));
-	  fprintf (dump_file, "\n;; Function %s (%s)%s\n\n", dname, aname,
-	     node->frequency == NODE_FREQUENCY_HOT
-	     ? " (hot)"
-	     : node->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED
-	     ? " (unlikely executed)"
-	     : node->frequency == NODE_FREQUENCY_EXECUTED_ONCE
-	     ? " (executed once)"
-	     : "");
-	}
+        dump_function_header (dump_file, current_function_decl);
       return initializing_dump;
     }
   else

gcc/tree-cfg.c

@@ -2052,11 +2052,7 @@ gimple_dump_cfg (FILE *file, int flags)
 {
   if (flags & TDF_DETAILS)
     {
-      const char *funcname
-	= lang_hooks.decl_printable_name (current_function_decl, 2);
-
-      fputc ('\n', file);
-      fprintf (file, ";; Function %s\n\n", funcname);
+      dump_function_header (file, current_function_decl);
       fprintf (file, ";; \n%d basic blocks, %d edges, last basic block %d.\n\n",
 	       n_basic_blocks, n_edges, last_basic_block);
 
@@ -7525,4 +7521,3 @@ struct gimple_opt_pass pass_warn_unused_result =
     0,					/* todo_flags_finish */
   }
 };
-

gcc/tree-pretty-print.c

@@ -3013,3 +3013,39 @@ pp_base_tree_identifier (pretty_printer *pp, tree id)
     pp_append_text (pp, IDENTIFIER_POINTER (id),
 		    IDENTIFIER_POINTER (id) + IDENTIFIER_LENGTH (id));
 }
+
+/* A helper function that is used to dump function information before the
+   function dump.  */
+
+void
+dump_function_header (FILE *dump_file, tree fdecl)
+{
+  const char *dname, *aname;
+  struct cgraph_node *node = cgraph_get_node (fdecl);
+  struct function *fun = DECL_STRUCT_FUNCTION (fdecl);
+
+  dname = lang_hooks.decl_printable_name (fdecl, 2);
+
+  if (DECL_ASSEMBLER_NAME_SET_P (fdecl))
+    aname = (IDENTIFIER_POINTER
+             (DECL_ASSEMBLER_NAME (fdecl)));
+  else
+    aname = "<unset-asm-name>";
+
+  if (node)
+    {
+      fprintf (dump_file, "\n;; Function %s (%s, funcdef_no=%d, decl_uid = %d, cgraph_uid=%d)",
+               dname, aname, fun->funcdef_no, DECL_UID(fdecl), node->uid);
+      fprintf (dump_file, "%s\n\n",
+               node->frequency == NODE_FREQUENCY_HOT
+               ? " (hot)"
+               : node->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED
+               ? " (unlikely executed)"
+               : node->frequency == NODE_FREQUENCY_EXECUTED_ONCE
+               ? " (executed once)"
+               : "");
+    }
+  else
+    fprintf (dump_file, "\n;; Function %s (%s, funcdef_no=%d, decl_uid = %d)",
+             dname, aname, fun->funcdef_no, DECL_UID(fdecl));
+}

gcc/tree-pretty-print.h

@@ -50,6 +50,7 @@ extern void debug_generic_expr (tree);
 extern void debug_generic_stmt (tree);
 extern void debug_tree_chain (tree);
 extern void percent_K_format (text_info *);
+extern void dump_function_header (FILE *, tree);
 
 /* In toplev.c  */
 extern bool default_tree_printer (pretty_printer *, text_info *, const char *,