Add support for keyed-call on arrays of fast elements

src/compiler.cc

 // Copyright 2012 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 41 matching lines @@
 
 namespace v8 {
 namespace internal {
 
 
 CompilationInfo::CompilationInfo(Handle<Script> script,
                                  Zone* zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE)),
       script_(script),
       osr_ast_id_(BailoutId::None()),
-      osr_pc_offset_(0) {
+      osr_pc_offset_(0),
+      parameter_count_(0) {
   Initialize(script->GetIsolate(), BASE, zone);
 }
 
 
 CompilationInfo::CompilationInfo(Handle<SharedFunctionInfo> shared_info,
                                  Zone* zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) | IsLazy::encode(true)),
       shared_info_(shared_info),
       script_(Handle<Script>(Script::cast(shared_info->script()))),
       osr_ast_id_(BailoutId::None()),
-      osr_pc_offset_(0) {
+      osr_pc_offset_(0),
+      parameter_count_(0) {
   Initialize(script_->GetIsolate(), BASE, zone);
 }
 
 
 CompilationInfo::CompilationInfo(Handle<JSFunction> closure,
                                  Zone* zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) | IsLazy::encode(true)),
       closure_(closure),
       shared_info_(Handle<SharedFunctionInfo>(closure->shared())),
       script_(Handle<Script>(Script::cast(shared_info_->script()))),
       context_(closure->context()),
       osr_ast_id_(BailoutId::None()),
-      osr_pc_offset_(0) {
+      osr_pc_offset_(0),
+      parameter_count_(0) {
   Initialize(script_->GetIsolate(), BASE, zone);
 }
 
 
 CompilationInfo::CompilationInfo(HydrogenCodeStub* stub,
                                  Isolate* isolate,
                                  Zone* zone)
     : flags_(LanguageModeField::encode(CLASSIC_MODE) |
              IsLazy::encode(true)),
       osr_ast_id_(BailoutId::None()),
-      osr_pc_offset_(0) {
+      osr_pc_offset_(0),
+      parameter_count_(0) {
   Initialize(isolate, STUB, zone);
   code_stub_ = stub;
 }
 
 
 void CompilationInfo::Initialize(Isolate* isolate,
                                  Mode mode,
                                  Zone* zone) {
   isolate_ = isolate;
   function_ = NULL;
@@ skipping 69 matching lines @@
       DependentCode* dependent_code =
           DependentCode::ForObject(group_objects->at(j), group);
       dependent_code->RemoveCompilationInfo(group, this);
     }
     dependencies_[i] = NULL;  // Zone-allocated, no need to delete.
   }
 }
 
 
 int CompilationInfo::num_parameters() const {
-  ASSERT(!IsStub());
-  return scope()->num_parameters();
+  if (IsStub()) {
+    ASSERT(parameter_count_ > 0);
+    return parameter_count_;
+  } else {
+    return scope()->num_parameters();
+  }
 }
 
 
 int CompilationInfo::num_heap_slots() const {
   if (IsStub()) {
     return 0;
   } else {
     return scope()->num_heap_slots();
   }
 }
@@ skipping 1083 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal