Adding a type vector to replace type cells.

src/hydrogen.cc

 // Copyright 2013 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 40 matching lines @@
 #include "hydrogen-minus-zero.h"
 #include "hydrogen-osr.h"
 #include "hydrogen-range-analysis.h"
 #include "hydrogen-redundant-phi.h"
 #include "hydrogen-removable-simulates.h"
 #include "hydrogen-representation-changes.h"
 #include "hydrogen-sce.h"
 #include "hydrogen-uint32-analysis.h"
 #include "lithium-allocator.h"
 #include "parser.h"
+#include "feedbackslots.h"
 #include "runtime.h"
 #include "scopeinfo.h"
 #include "scopes.h"
 #include "stub-cache.h"
 #include "typing.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "ia32/lithium-codegen-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "x64/lithium-codegen-x64.h"
@@ skipping 7088 matching lines @@
   // We don't want to add more than a certain number of nodes from inlining.
   if (inlined_count_ > Min(FLAG_max_inlined_nodes_cumulative,
                            kUnlimitedMaxInlinedNodesCumulative)) {
     TraceInline(target, caller, "cumulative AST node limit reached");
     return false;
   }
 
   // Parse and allocate variables.
   CompilationInfo target_info(target, zone());
   Handle<SharedFunctionInfo> target_shared(target->shared());
-  if (!Parser::Parse(&target_info) || !Scope::Analyze(&target_info)) {
+  if (!Parser::Parse(&target_info) || !Scope::Analyze(&target_info) ||
+      !FeedbackSlotAllocator::Run(&target_info)) {
     if (target_info.isolate()->has_pending_exception()) {
       // Parse or scope error, never optimize this function.
       SetStackOverflow();
       target_shared->DisableOptimization(kParseScopeError);
     }
     TraceInline(target, caller, "parse failure");
     return false;
   }
 
   if (target_info.scope()->num_heap_slots() > 0) {
@@ skipping 3903 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal