[turbofan] reduce allocations outside of pipeline

test/cctest/compiler/test-codegen-deopt.cc

 // Copyright 2014 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.
 
 #include "src/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/compiler/code-generator.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
@@ skipping 48 matching lines @@
 
   virtual ~DeoptCodegenTester() { delete code; }
 
   void GenerateCodeFromSchedule(Schedule* schedule) {
     OFStream os(stdout);
     if (FLAG_trace_turbo) {
       os << *schedule;
     }
 
     // Initialize the codegen and generate code.
-    Linkage* linkage = new (scope_->main_zone()) Linkage(&info);
+    Linkage* linkage = new (scope_->main_zone()) Linkage(info.zone(), &info);
     code = new v8::internal::compiler::InstructionSequence(scope_->main_zone(),
                                                            graph, schedule);
     SourcePositionTable source_positions(graph);
     InstructionSelector selector(scope_->main_zone(), linkage, code, schedule,
                                  &source_positions);
     selector.SelectInstructions();
 
     if (FLAG_trace_turbo) {
       os << "----- Instruction sequence before register allocation -----\n"
          << *code;
     }
 
     Frame frame;
     RegisterAllocator allocator(scope_->main_zone(), &frame, &info, code);
     CHECK(allocator.Allocate());
 
     if (FLAG_trace_turbo) {
       os << "----- Instruction sequence after register allocation -----\n"
          << *code;
     }
 
-    compiler::CodeGenerator generator(&frame, linkage, code);
+    compiler::CodeGenerator generator(&frame, linkage, code, &info);
     result_code = generator.GenerateCode();
 
 #ifdef OBJECT_PRINT
     if (FLAG_print_opt_code || FLAG_trace_turbo) {
       result_code->Print();
     }
 #endif
   }
 
   Zone* zone() { return scope_->main_zone(); }
@@ skipping 208 matching lines @@
   Handle<Object> result;
   bool has_pending_exception =
       !Execution::Call(isolate, t.function,
                        isolate->factory()->undefined_value(), 0, NULL,
                        false).ToHandle(&result);
   CHECK(!has_pending_exception);
   CHECK(result->SameValue(Smi::FromInt(42)));
 }
 
 #endif