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

runtime/vm/stub_code_arm64.cc

 // Copyright (c) 2014, 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_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 636 matching lines @@
 
   // Check for maximum allowed length.
   const intptr_t max_len =
       reinterpret_cast<intptr_t>(Smi::New(Array::kMaxElements));
   __ CompareImmediate(R2, max_len);
   __ b(&slow_case, GT);
 
   const intptr_t cid = kArrayCid;
   __ MaybeTraceAllocation(kArrayCid, R4, &slow_case);
 
-  Heap::Space space = Heap::SpaceForAllocation(cid);
+  Heap::Space space = Heap::kNew;
   __ LoadIsolate(R8);
   __ ldr(R8, Address(R8, Isolate::heap_offset()));
 
   // Calculate and align allocation size.
   // Load new object start and calculate next object start.
   // R1: array element type.
   // R2: array length as Smi.
   // R8: heap.
   __ LoadFromOffset(R0, R8, Heap::TopOffset(space));
   intptr_t fixed_size = sizeof(RawArray) + kObjectAlignment - 1;
@@ skipping 247 matching lines @@
     __ LoadImmediate(R2, fixed_size);
     __ add(R2, R2, Operand(R1, LSL, 3));
     ASSERT(kSmiTagShift == 1);
     __ andi(R2, R2, Immediate(~(kObjectAlignment - 1)));
 
     __ MaybeTraceAllocation(kContextCid, R4, &slow_case);
     // Now allocate the object.
     // R1: number of context variables.
     // R2: object size.
     const intptr_t cid = kContextCid;
-    Heap::Space space = Heap::SpaceForAllocation(cid);
+    Heap::Space space = Heap::kNew;
     __ LoadIsolate(R5);
     __ ldr(R5, Address(R5, Isolate::heap_offset()));
     __ ldr(R0, Address(R5, Heap::TopOffset(space)));
     __ add(R3, R2, Operand(R0));
     // Check if the allocation fits into the remaining space.
     // R0: potential new object.
     // R1: number of context variables.
     // R2: object size.
     // R3: potential next object start.
     // R5: heap.
@@ skipping 165 matching lines @@
     __ ldr(R1, Address(SP));
     // R1: 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.
     // R1: instantiated type arguments (if is_cls_parameterized).
-    Heap::Space space = Heap::SpaceForAllocation(cls.id());
+    Heap::Space space = Heap::kNew;
     __ ldr(R5, Address(THR, Thread::heap_offset()));
     __ ldr(R2, Address(R5, Heap::TopOffset(space)));
     __ AddImmediate(R3, R2, instance_size);
     // Check if the allocation fits into the remaining space.
     // R2: potential new object start.
     // R3: potential next object start.
     // R5: heap.
     __ ldr(TMP, Address(R5, Heap::EndOffset(space)));
     __ CompareRegisters(R3, TMP);
     if (FLAG_use_slow_path) {
@@ skipping 1108 matching lines @@
 }
 
 
 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) {
   __ brk(0);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64