add hash_map class

gcc/

	* alloc-pool.c (alloc_pool_hash): Use hash_map instead of hash_table.
	* dominance.c (iterate_fix_dominators): Use hash_map instead of
	pointer_map.
	* hash-map.h: New file.
	* ipa-comdats.c: Use hash_map instead of pointer_map.
	* ipa.c: Likewise.
	* lto-section-out.c: Adjust.
	* lto-streamer.h: Replace pointer_map with hash_map.
	* symtab.c (verify_symtab): Likewise.
	* tree-ssa-strlen.c (decl_to_stridxlist_htab): Likewise.
	* tree-ssa-uncprop.c (val_ssa_equiv): Likewise.
	* tree-streamer.h: Likewise.
	* tree-streamer.c: Adjust.
	* pointer-set.h: Remove pointer_map.

gcc/lto/

	* lto.c (canonical_type_hash_cache): Use hash_map instead of
	pointer_map.

From-SVN: r211938

1 files changed, 5 insertions, 4 deletions

diff --git a/gcc/lto-streamer.h b/gcc/lto-streamer.h
index 889e91d..566a0e0 100644
--- a/gcc/lto-streamer.h
+++ b/gcc/lto-streamer.h
@@ -25,6 +25,7 @@ along with GCC; see the file COPYING3.  If not see
 
 #include "plugin-api.h"
 #include "hash-table.h"
+#include "hash-map.h"
 #include "target.h"
 #include "cgraph.h"
 #include "vec.h"
@@ -472,7 +473,7 @@ struct GTY(()) lto_tree_ref_table
 
 struct lto_tree_ref_encoder
 {
-  pointer_map<unsigned> *tree_hash_table;	/* Maps pointers to indices. */
+  hash_map<tree, unsigned> *tree_hash_table;	/* Maps pointers to indices. */
   vec<tree> trees;			/* Maps indices to pointers. */
 };
 
@@ -994,7 +995,7 @@ lto_tag_check_range (enum LTO_tags actual, enum LTO_tags tag1,
 static inline void
 lto_init_tree_ref_encoder (struct lto_tree_ref_encoder *encoder)
 {
-  encoder->tree_hash_table = new pointer_map<unsigned>;
+  encoder->tree_hash_table = new hash_map<tree, unsigned> (251);
   encoder->trees.create (0);
 }
 
@@ -1005,8 +1006,8 @@ static inline void
 lto_destroy_tree_ref_encoder (struct lto_tree_ref_encoder *encoder)
 {
   /* Hash table may be delete already.  */
-  if (encoder->tree_hash_table)
-    delete encoder->tree_hash_table;
+  delete encoder->tree_hash_table;
+  encoder->tree_hash_table = NULL;
   encoder->trees.release ();
 }