Remove support for pretenuring as it is not fully implemented and is currently turned on for a very…

runtime/vm/stub_code_x64.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 580 matching lines @@
   __ MaybeTraceAllocation(kArrayCid,
                           &slow_case,
                           Assembler::kFarJump);
 
   const intptr_t fixed_size = sizeof(RawArray) + kObjectAlignment - 1;
   __ leaq(RDI, Address(RDI, TIMES_4, fixed_size));  // RDI is a Smi.
   ASSERT(kSmiTagShift == 1);
   __ andq(RDI, Immediate(-kObjectAlignment));
 
   const intptr_t cid = kArrayCid;
-  Heap::Space space = Heap::SpaceForAllocation(cid);
+  Heap::Space space = Heap::kNew;
   __ movq(R13, Address(THR, Thread::heap_offset()));
   __ movq(RAX, Address(R13, Heap::TopOffset(space)));
 
   // RDI: allocation size.
   __ movq(RCX, RAX);
   __ addq(RCX, RDI);
   __ j(CARRY, &slow_case);
 
   // Check if the allocation fits into the remaining space.
   // RAX: potential new object start.
@@ skipping 231 matching lines @@
     __ andq(R13, Immediate(-kObjectAlignment));
 
     // Check for allocation tracing.
     __ MaybeTraceAllocation(kContextCid,
                             &slow_case,
                             Assembler::kFarJump);
 
     // Now allocate the object.
     // R10: number of context variables.
     const intptr_t cid = kContextCid;
-    Heap::Space space = Heap::SpaceForAllocation(cid);
+    Heap::Space space = Heap::kNew;
     __ movq(RCX, Address(THR, Thread::heap_offset()));
     __ movq(RAX, Address(RCX, Heap::TopOffset(space)));
     __ addq(R13, RAX);
     // Check if the allocation fits into the remaining space.
     // RAX: potential new object.
     // R13: potential next object start.
     // R10: number of context variables.
     // RCX: heap.
     __ cmpq(R13, Address(RCX, Heap::EndOffset(space)));
     if (FLAG_use_slow_path) {
@@ skipping 182 matching lines @@
     __ movq(RDX, Address(RSP, kObjectTypeArgumentsOffset));
     // RDX: instantiated type arguments.
   }
   Isolate* isolate = Isolate::Current();
   if (FLAG_inline_alloc && Heap::IsAllocatableInNewSpace(instance_size) &&
       !cls.TraceAllocation(isolate)) {
     Label slow_case;
     // Allocate the object and update top to point to
     // next object start and initialize the allocated object.
     // RDX: instantiated type arguments (if is_cls_parameterized).
-    Heap::Space space = Heap::SpaceForAllocation(cls.id());
+    Heap::Space space = Heap::kNew;
     __ movq(RCX, Address(THR, Thread::heap_offset()));
     __ movq(RAX, Address(RCX, Heap::TopOffset(space)));
     __ leaq(RBX, Address(RAX, instance_size));
     // Check if the allocation fits into the remaining space.
     // RAX: potential new object start.
     // RBX: potential next object start.
     // RCX: heap.
     __ cmpq(RBX, Address(RCX, Heap::EndOffset(space)));
     if (FLAG_use_slow_path) {
       __ jmp(&slow_case);
@@ skipping 1151 matching lines @@
 }
 
 
 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) {
   __ int3();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64