Disable hash-table sanitization for mem stats maps.

2019-06-12  Martin Liska  <mliska@suse.cz>

	* ggc-common.c (ggc_prune_overhead_list): Do not sanitize
	the created map.
	* hash-map.h: Add sanitize_eq_and_hash into ::hash_map.
	* mem-stats.h (mem_alloc_description::mem_alloc_description):
	Do not sanitize created maps.

From-SVN: r272183

gcc/ChangeLog

+2019-06-12  Martin Liska  <mliska@suse.cz>
+
+	* ggc-common.c (ggc_prune_overhead_list): Do not sanitize
+	the created map.
+	* hash-map.h: Add sanitize_eq_and_hash into ::hash_map.
+	* mem-stats.h (mem_alloc_description::mem_alloc_description):
+	Do not sanitize created maps.
+
 2019-06-12  Aldy Hernandez  <aldyh@redhat.com>
 
 	* gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children): Use

gcc/ggc-common.c

@@ -1014,5 +1014,5 @@ ggc_prune_overhead_list (void)
       (*it).second.first->m_collected += (*it).second.second;
 
   delete ggc_mem_desc.m_reverse_object_map;
-  ggc_mem_desc.m_reverse_object_map = new map_t (13, false, false);
+  ggc_mem_desc.m_reverse_object_map = new map_t (13, false, false, false);
 }

gcc/hash-map.h

@@ -118,16 +118,19 @@ class GTY((user)) hash_map
 
 public:
   explicit hash_map (size_t n = 13, bool ggc = false,
+		     bool sanitize_eq_and_hash = true,
 		     bool gather_mem_stats = GATHER_STATISTICS
 		     CXX_MEM_STAT_INFO)
-    : m_table (n, ggc, true, gather_mem_stats, HASH_MAP_ORIGIN PASS_MEM_STAT)
+    : m_table (n, ggc, sanitize_eq_and_hash, gather_mem_stats,
+	       HASH_MAP_ORIGIN PASS_MEM_STAT)
   {
   }
 
   explicit hash_map (const hash_map &h, bool ggc = false,
+		     bool sanitize_eq_and_hash = true,
 		     bool gather_mem_stats = GATHER_STATISTICS
 		     CXX_MEM_STAT_INFO)
-    : m_table (h.m_table, ggc, true, gather_mem_stats,
+    : m_table (h.m_table, ggc, sanitize_eq_and_hash, gather_mem_stats,
 	       HASH_MAP_ORIGIN PASS_MEM_STAT) {}
 
   /* Create a hash_map in ggc memory.  */
@@ -136,7 +139,7 @@ public:
 			       CXX_MEM_STAT_INFO)
     {
       hash_map *map = ggc_alloc<hash_map> ();
-      new (map) hash_map (size, true, gather_mem_stats PASS_MEM_STAT);
+      new (map) hash_map (size, true, true, gather_mem_stats PASS_MEM_STAT);
       return map;
     }
 

gcc/mem-stats.h

@@ -559,9 +559,9 @@ template <class T>
 inline
 mem_alloc_description<T>::mem_alloc_description ()
 {
-  m_map = new mem_map_t (13, false, false);
-  m_reverse_map = new reverse_mem_map_t (13, false, false);
-  m_reverse_object_map = new reverse_object_map_t (13, false, false);
+  m_map = new mem_map_t (13, false, false, false);
+  m_reverse_map = new reverse_mem_map_t (13, false, false, false);
+  m_reverse_object_map = new reverse_object_map_t (13, false, false, false);
 }
 
 /* Default destructor.  */