From a9f5259f080a1c114a6de06f2ec67730e4e50f13 Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 7 Apr 2010 15:54:29 +0000
Subject: [PATCH] 	* pt.c (print_template_statistics): New. 	*
 cp-tree.h: Declare it. 	* tree.c (cxx_print_statistics): Call it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158072 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/cp/ChangeLog |  4 ++++
 gcc/cp/cp-tree.h |  1 +
 gcc/cp/pt.c      | 15 +++++++++++++++
 gcc/cp/tree.c    |  1 +
 4 files changed, 21 insertions(+)

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a6e6f3a85e8..d3b0788218d 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
 2010-04-07  Jason Merrill  <jason@redhat.com>
 
+	* pt.c (print_template_statistics): New.
+	* cp-tree.h: Declare it.
+	* tree.c (cxx_print_statistics): Call it.
+
 	PR c++/41970
 	* decl.c (grokvardecl): Tweak warning message.
 	(grokfndecl): Likewise.
diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 63346736cf6..1350619057a 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -4975,6 +4975,7 @@ extern void pop_tinst_level                     (void);
 extern struct tinst_level *outermost_tinst_level(void);
 extern bool parameter_of_template_p		(tree, tree);
 extern void init_template_processing		(void);
+extern void print_template_statistics		(void);
 bool template_template_parameter_p		(const_tree);
 extern bool primary_template_instantiation_p    (const_tree);
 extern tree get_primary_template_innermost_parameters	(const_tree);
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 13bb5aadf4d..d1c33d65277 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -18554,4 +18554,19 @@ init_template_processing (void)
 					  ggc_free);
 }
 
+/* Print stats about the template hash tables for -fstats.  */
+
+void
+print_template_statistics (void)
+{
+  fprintf (stderr, "decl_specializations: size %ld, %ld elements, "
+	   "%f collisions\n", (long) htab_size (decl_specializations),
+	   (long) htab_elements (decl_specializations),
+	   htab_collisions (decl_specializations));
+  fprintf (stderr, "type_specializations: size %ld, %ld elements, "
+	   "%f collisions\n", (long) htab_size (type_specializations),
+	   (long) htab_elements (type_specializations),
+	   htab_collisions (type_specializations));
+}
+
 #include "gt-cp-pt.h"
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 35b0da62ea5..27ced53a2b4 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -1664,6 +1664,7 @@ cxx_print_statistics (void)
 {
   print_search_statistics ();
   print_class_statistics ();
+  print_template_statistics ();
 #ifdef GATHER_STATISTICS
   fprintf (stderr, "maximum template instantiation depth reached: %d\n",
 	   depth_reached);
-- 
2.11.4.GIT