Drop (mis)use of HPhase in full code gen.

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 349 matching lines @@
       info()->SetCode(code);
       return SetLastStatus(BAILED_OUT);
   }
 
   // Recompile the unoptimized version of the code if the current version
   // doesn't have deoptimization support. Alternatively, we may decide to
   // run the full code generator to get a baseline for the compile-time
   // performance of the hydrogen-based compiler.
   bool should_recompile = !info()->shared_info()->has_deoptimization_support();
   if (should_recompile || FLAG_hydrogen_stats) {
-    HPhase phase(HPhase::kFullCodeGen, isolate(), info()->zone());
+    int64_t start_ticks = 0;
+    if (FLAG_hydrogen_stats) {
+      start_ticks = OS::Ticks();
+    }
     CompilationInfoWithZone unoptimized(info()->shared_info());
     // Note that we use the same AST that we will use for generating the
     // optimized code.
     unoptimized.SetFunction(info()->function());
     unoptimized.SetScope(info()->scope());
     unoptimized.SetContext(info()->context());
     if (should_recompile) unoptimized.EnableDeoptimizationSupport();
     bool succeeded = FullCodeGenerator::MakeCode(&unoptimized);
     if (should_recompile) {
       if (!succeeded) return SetLastStatus(FAILED);
       Handle<SharedFunctionInfo> shared = info()->shared_info();
       shared->EnableDeoptimizationSupport(*unoptimized.code());
       // The existing unoptimized code was replaced with the new one.
       Compiler::RecordFunctionCompilation(
           Logger::LAZY_COMPILE_TAG, &unoptimized, shared);
     }
+    if (FLAG_hydrogen_stats) {
+      int64_t ticks = OS::Ticks() - start_ticks;
+      isolate()->GetHStatistics()->IncrementFullCodeGen(ticks);
+    }
   }
 
   // Check that the unoptimized, shared code is ready for
   // optimizations.  When using the always_opt flag we disregard the
   // optimizable marker in the code object and optimize anyway. This
   // is safe as long as the unoptimized code has deoptimization
   // support.
   ASSERT(FLAG_always_opt || code->optimizable());
   ASSERT(info()->shared_info()->has_deoptimization_support());
 
@@ skipping 803 matching lines @@
     }
   }
 
   GDBJIT(AddCode(Handle<String>(shared->DebugName()),
                  Handle<Script>(info->script()),
                  Handle<Code>(info->code()),
                  info));
 }
 
 } }  // namespace v8::internal