Progress towards making Zones independent of Isolates and Threads.

src/hydrogen.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 669 matching lines @@
       values_(16),
       phi_list_(NULL) {
   start_environment_ =
       new(zone()) HEnvironment(NULL, info->scope(), info->closure());
   start_environment_->set_ast_id(AstNode::kFunctionEntryId);
   entry_block_ = CreateBasicBlock();
   entry_block_->SetInitialEnvironment(start_environment_);
 }
 
 
-Handle<Code> HGraph::Compile(CompilationInfo* info) {
+Handle<Code> HGraph::Compile(CompilationInfo* info, Zone* zone) {
   int values = GetMaximumValueID();
   if (values > LUnallocated::kMaxVirtualRegisters) {
     if (FLAG_trace_bailout) {
       PrintF("Not enough virtual registers for (values).\n");
     }
     return Handle<Code>::null();
   }
   LAllocator allocator(values, this);
   LChunkBuilder builder(info, this, &allocator);
   LChunk* chunk = builder.Build();
   if (chunk == NULL) return Handle<Code>::null();
 
   if (!allocator.Allocate(chunk)) {
     if (FLAG_trace_bailout) {
       PrintF("Not enough virtual registers (regalloc).\n");
     }
     return Handle<Code>::null();
   }
 
   MacroAssembler assembler(info->isolate(), NULL, 0);
-  LCodeGen generator(chunk, &assembler, info);
+  LCodeGen generator(chunk, &assembler, info, zone);
 
   chunk->MarkEmptyBlocks();
 
   if (generator.GenerateCode()) {
     if (FLAG_trace_codegen) {
       PrintF("Crankshaft Compiler - ");
     }
     CodeGenerator::MakeCodePrologue(info);
     Code::Flags flags = Code::ComputeFlags(Code::OPTIMIZED_FUNCTION);
     Handle<Code> code =
@@ skipping 8272 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal