Fast compiler support for regexp literals....

src/compiler.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 440 matching lines @@
 CodeGenSelector::CodeGenTag CodeGenSelector::Select(FunctionLiteral* fun) {
   Scope* scope = fun->scope();
 
   if (!scope->is_global_scope()) {
     if (FLAG_trace_bailout) PrintF("Non-global scope\n");
     return NORMAL;
   }
   ASSERT(scope->num_heap_slots() == 0);
   ASSERT(scope->arguments() == NULL);
 
-  if (fun->materialized_literal_count() > 0) {
-    if (FLAG_trace_bailout) PrintF("Unsupported literal\n");
-    return NORMAL;
-  }
-
   has_supported_syntax_ = true;
   VisitDeclarations(fun->scope()->declarations());
   if (!has_supported_syntax_) return NORMAL;
 
   VisitStatements(fun->body());
   return has_supported_syntax_ ? FAST : NORMAL;
 }
 
 
 #define BAILOUT(reason)                         \
@@ skipping 156 matching lines @@
 }
 
 
 void CodeGenSelector::VisitLiteral(Literal* expr) {
   // All literals are supported.
   expr->set_location(Location::Constant());
 }
 
 
 void CodeGenSelector::VisitRegExpLiteral(RegExpLiteral* expr) {
-  BAILOUT("RegExpLiteral");
+  // RegexpLiterals are supported.
 }
 
 
 void CodeGenSelector::VisitObjectLiteral(ObjectLiteral* expr) {
   BAILOUT("ObjectLiteral");
 }
 
 
 void CodeGenSelector::VisitArrayLiteral(ArrayLiteral* expr) {
   BAILOUT("ArrayLiteral");
@@ skipping 106 matching lines @@
 
 void CodeGenSelector::VisitThisFunction(ThisFunction* expr) {
   BAILOUT("ThisFunction");
 }
 
 #undef BAILOUT
 #undef CHECK_BAILOUT
 
 
 } }  // namespace v8::internal