Introduce cache of resolved names in library

runtime/vm/compiler_stats.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/compiler_stats.h"
 
 #include "vm/flags.h"
 #include "vm/timer.h"
 
 
@@ skipping 43 matching lines @@
 
 
 intptr_t CompilerStats::num_tokens_total = 0;
 intptr_t CompilerStats::num_literal_tokens_total = 0;
 intptr_t CompilerStats::num_ident_tokens_total = 0;
 intptr_t CompilerStats::num_tokens_consumed = 0;
 intptr_t CompilerStats::num_token_checks = 0;
 intptr_t CompilerStats::num_tokens_rewind = 0;
 intptr_t CompilerStats::num_tokens_lookahead = 0;
 
+intptr_t CompilerStats::num_lib_cache_hit = 0;
+intptr_t CompilerStats::num_names_cached = 0;
+intptr_t CompilerStats::make_accessor_name = 0;
+intptr_t CompilerStats::make_field_name = 0;
+
 void CompilerStats::Print() {
   if (!FLAG_compiler_stats) {
     return;
   }
   OS::Print("==== Compiler Stats ====\n");
   OS::Print("Number of tokens:   %" Pd "\n", num_tokens_total);
   OS::Print("  Literal tokens:   %" Pd "\n", num_literal_tokens_total);
   OS::Print("  Ident tokens:     %" Pd "\n", num_ident_tokens_total);
   OS::Print("Tokens consumed:    %" Pd " (%.2f times number of tokens)\n",
             num_tokens_consumed,
             (1.0 * num_tokens_consumed) / num_tokens_total);
   OS::Print("Tokens checked:     %" Pd "  (%.2f times tokens consumed)\n",
             num_token_checks, (1.0 * num_token_checks) / num_tokens_consumed);
   OS::Print("Token rewind:       %" Pd " (%" Pd "%% of tokens checked)\n",
             num_tokens_rewind, (100 * num_tokens_rewind) / num_token_checks);
   OS::Print("Token lookahead:    %" Pd " (%" Pd "%% of tokens checked)\n",
             num_tokens_lookahead,
             (100 * num_tokens_lookahead) / num_token_checks);
+
+  OS::Print("Lib names cached:   %" Pd "\n", num_names_cached);
+  OS::Print("Lib name cache hit: %" Pd "\n", num_lib_cache_hit);
+  OS::Print("Accessor mangling:  %" Pd " field->acc  %" Pd " acc->field\n",
+            make_accessor_name, make_field_name);
+
   OS::Print("Source length:      %" Pd " characters\n", src_length);
   int64_t scan_usecs = scanner_timer.TotalElapsedTime();
   OS::Print("Scanner time:       %" Pd64 " msecs\n",
             scan_usecs / 1000);
   int64_t parse_usecs = parser_timer.TotalElapsedTime();
   OS::Print("Parser time:        %" Pd64 " msecs\n",
             parse_usecs / 1000);
   int64_t codegen_usecs = codegen_timer.TotalElapsedTime();
   OS::Print("Code gen. time:     %" Pd64 " msecs\n",
             codegen_usecs / 1000);
@@ skipping 34 matching lines @@
             codefinalizer_usecs / 1000);
   OS::Print("Compilation speed:  %" Pd64 " tokens per msec\n",
             1000 * num_tokens_total / (parse_usecs + codegen_usecs));
   OS::Print("Code size:          %" Pd " KB\n",
             code_allocated / 1024);
   OS::Print("Code density:       %" Pd " tokens per KB\n",
             num_tokens_total * 1024 / code_allocated);
 }
 
 }  // namespace dart