Reland "Keep a canonical list of shared function infos."

src/objects-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 5120 matching lines @@
 ACCESSORS(Script, id, Smi, kIdOffset)
 ACCESSORS_TO_SMI(Script, line_offset, kLineOffsetOffset)
 ACCESSORS_TO_SMI(Script, column_offset, kColumnOffsetOffset)
 ACCESSORS(Script, context_data, Object, kContextOffset)
 ACCESSORS(Script, wrapper, HeapObject, kWrapperOffset)
 ACCESSORS_TO_SMI(Script, type, kTypeOffset)
 ACCESSORS(Script, line_ends, Object, kLineEndsOffset)
 ACCESSORS(Script, eval_from_shared, Object, kEvalFromSharedOffset)
 ACCESSORS_TO_SMI(Script, eval_from_instructions_offset,
                  kEvalFrominstructionsOffsetOffset)
+ACCESSORS(Script, shared_function_infos, Object, kSharedFunctionInfosOffset)
 ACCESSORS_TO_SMI(Script, flags, kFlagsOffset)
 ACCESSORS(Script, source_url, Object, kSourceUrlOffset)
 ACCESSORS(Script, source_mapping_url, Object, kSourceMappingUrlOffset)
 
 Script::CompilationType Script::compilation_type() {
   return BooleanBit::get(flags(), kCompilationTypeBit) ?
       COMPILATION_TYPE_EVAL : COMPILATION_TYPE_HOST;
 }
 void Script::set_compilation_type(CompilationType type) {
   set_flags(BooleanBit::set(flags(), kCompilationTypeBit,
@@ skipping 74 matching lines @@
 BOOL_ACCESSORS(SharedFunctionInfo,
                compiler_hints,
                uses_arguments,
                kUsesArguments)
 BOOL_ACCESSORS(SharedFunctionInfo,
                compiler_hints,
                has_duplicate_parameters,
                kHasDuplicateParameters)
 BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, asm_function, kIsAsmFunction)
 BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, deserialized, kDeserialized)
+BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, never_compiled,
+               kNeverCompiled)
 
 
 #if V8_HOST_ARCH_32_BIT
 SMI_ACCESSORS(SharedFunctionInfo, length, kLengthOffset)
 SMI_ACCESSORS(SharedFunctionInfo, internal_formal_parameter_count,
               kFormalParameterCountOffset)
 SMI_ACCESSORS(SharedFunctionInfo, expected_nof_properties,
               kExpectedNofPropertiesOffset)
 SMI_ACCESSORS(SharedFunctionInfo, num_literals, kNumLiteralsOffset)
 SMI_ACCESSORS(SharedFunctionInfo, start_position_and_type,
@@ skipping 194 matching lines @@
   // If the GC metadata field is already used then the function was
   // enqueued as a code flushing candidate and we remove it now.
   if (code()->gc_metadata() != NULL) {
     CodeFlusher* flusher = GetHeap()->mark_compact_collector()->code_flusher();
     flusher->EvictCandidate(this);
   }
 
   DCHECK(code()->gc_metadata() == NULL && value->gc_metadata() == NULL);
 
   set_code(value);
+
+  if (is_compiled()) set_never_compiled(false);
 }
 
 
 ScopeInfo* SharedFunctionInfo::scope_info() const {
   return reinterpret_cast<ScopeInfo*>(READ_FIELD(this, kScopeInfoOffset));
 }
 
 
 void SharedFunctionInfo::set_scope_info(ScopeInfo* value,
                                         WriteBarrierMode mode) {
@@ skipping 1827 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_