Introduce flag --allocation-site-transitioning

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 2200 matching lines @@
 
   CHECK(CcTest::heap()->InNewSpace(*o));
 }
 
 
 TEST(OptimizedPretenuringAllocationFolding) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
@@ skipping 30 matching lines @@
   CHECK(CcTest::heap()->InOldDataSpace(double_array_handle->elements()));
 }
 
 
 TEST(OptimizedPretenuringObjectArrayLiterals) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
       source,
@@ skipping 19 matching lines @@
   CHECK(CcTest::heap()->InOldPointerSpace(o->elements()));
   CHECK(CcTest::heap()->InOldPointerSpace(*o));
 }
 
 
 TEST(OptimizedPretenuringMixedInObjectProperties) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
 
   i::ScopedVector<char> source(1024);
@@ skipping 32 matching lines @@
       inner_object->RawFastPropertyAt(idx2)));
 }
 
 
 TEST(OptimizedPretenuringDoubleArrayProperties) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
       source,
@@ skipping 20 matching lines @@
   CHECK(CcTest::heap()->InOldDataSpace(o->properties()));
 }
 
 
 TEST(OptimizedPretenuringdoubleArrayLiterals) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
       source,
@@ skipping 19 matching lines @@
   CHECK(CcTest::heap()->InOldDataSpace(o->elements()));
   CHECK(CcTest::heap()->InOldPointerSpace(*o));
 }
 
 
 TEST(OptimizedPretenuringNestedMixedArrayLiterals) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
@@ skipping 29 matching lines @@
   CHECK(CcTest::heap()->InOldDataSpace(double_array_handle->elements()));
 }
 
 
 TEST(OptimizedPretenuringNestedObjectLiterals) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
       source,
@@ skipping 29 matching lines @@
   CHECK(CcTest::heap()->InOldPointerSpace(int_array_handle_2->elements()));
 }
 
 
 TEST(OptimizedPretenuringNestedDoubleLiterals) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
   CcTest::InitializeVM();
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   if (i::FLAG_gc_global || i::FLAG_stress_compaction) return;
+  if (!i::FLAG_allocation_site_pretenuring) return;
   v8::HandleScope scope(CcTest::isolate());
 
   // Grow new space unitl maximum capacity reached.
   while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
     CcTest::heap()->new_space()->Grow();
   }
 
   i::ScopedVector<char> source(1024);
   i::SNPrintF(
       source,
@@ skipping 1300 matching lines @@
        !(site->IsUndefined());
        site = AllocationSite::cast(site)->weak_next()) {
     count++;
   }
   return count;
 }
 
 
 TEST(EnsureAllocationSiteDependentCodesProcessed) {
   if (i::FLAG_always_opt || !i::FLAG_crankshaft) return;
+  if (!i::FLAG_allocation_site_transitioning) return;
   i::FLAG_allow_natives_syntax = true;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   v8::internal::Heap* heap = CcTest::heap();
   GlobalHandles* global_handles = isolate->global_handles();
 
   if (!isolate->use_crankshaft()) return;
 
   // The allocation site at the head of the list is ours.
   Handle<AllocationSite> site;
@@ skipping 636 matching lines @@
 #ifdef DEBUG
 TEST(PathTracer) {
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
 
   v8::Local<v8::Value> result = CompileRun("'abc'");
   Handle<Object> o = v8::Utils::OpenHandle(*result);
   CcTest::i_isolate()->heap()->TracePathToObject(*o);
 }
 #endif  // DEBUG