Add ability to disable inline bump-pointer allocation.

test/cctest/test-heap.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 3498 matching lines @@
              "    var a = new Array(n);"
              "    for (var i = 0; i < n; i += 100) a[i] = i;"
              "};"
              "f(10 * 1024 * 1024);");
   IncrementalMarking* marking = CcTest::heap()->incremental_marking();
   if (marking->IsStopped()) marking->Start();
   // This big step should be sufficient to mark the whole array.
   marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
   ASSERT(marking->IsComplete());
 }
+
+
+TEST(DisableInlineAllocation) {
+  i::FLAG_allow_natives_syntax = true;
+  CcTest::InitializeVM();
+  v8::HandleScope scope(CcTest::isolate());
+  CompileRun("function test() {"
+             "  var x = [];"
+             "  for (var i = 0; i < 10; i++) {"
+             "    x[i] = [ {}, [1,2,3], [1,x,3] ];"
+             "  }"
+             "}"
+             "function run() {"
+             "  %OptimizeFunctionOnNextCall(test);"
+             "  test();"
+             "  %DeoptimizeFunction(test);"
+             "}");
+
+  // Warm-up with inline allocation enabled.
+  CompileRun("test(); test(); run();");
+
+  // Run test with inline allocation disabled.
+  CcTest::heap()->DisableInlineAllocation();
+  CompileRun("run()");
+
+  // Run test with inline allocation disabled and pretenuring.
+  CcTest::heap()->SetNewSpaceHighPromotionModeActive(true);
+  CompileRun("run()");
+
+  // Run test with inline allocation re-enabled.
+  CcTest::heap()->EnableInlineAllocation();
+  CompileRun("run()");
+}