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

runtime/vm/intrinsifier_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"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 182 matching lines @@
   __ b(&fall_through, LT);                                                     \
   __ SmiUntag(R2);                                                             \
   /* Check for maximum allowed length. */                                      \
   /* R2: untagged array length. */                                             \
   __ CompareImmediate(R2, max_len);                                            \
   __ b(&fall_through, GT);                                                     \
   __ LslImmediate(R2, R2, scale_shift);                                        \
   const intptr_t fixed_size = sizeof(Raw##type_name) + kObjectAlignment - 1;   \
   __ AddImmediate(R2, R2, fixed_size);                                         \
   __ andi(R2, R2, Immediate(~(kObjectAlignment - 1)));                         \
-  Heap::Space space = Heap::SpaceForAllocation(cid);                           \
+  Heap::Space space = Heap::kNew;                                              \
   __ ldr(R3, Address(THR, Thread::heap_offset()));                             \
   __ ldr(R0, Address(R3, Heap::TopOffset(space)));                             \
                                                                                \
   /* R2: allocation size. */                                                   \
   __ adds(R1, R0, Operand(R2));                                                \
   __ b(&fall_through, CS);  /* Fail on unsigned overflow. */                   \
                                                                                \
   /* Check if the allocation fits into the remaining space. */                 \
   /* R0: potential new object start. */                                        \
   /* R1: potential next object start. */                                       \
@@ skipping 1695 matching lines @@
   Label fail;
   __ MaybeTraceAllocation(kOneByteStringCid, R0, failure);
   __ mov(R6, length_reg);  // Save the length register.
   // TODO(koda): Protect against negative length and overflow here.
   __ SmiUntag(length_reg);
   const intptr_t fixed_size = sizeof(RawString) + kObjectAlignment - 1;
   __ AddImmediate(length_reg, length_reg, fixed_size);
   __ andi(length_reg, length_reg, Immediate(~(kObjectAlignment - 1)));
 
   const intptr_t cid = kOneByteStringCid;
-  Heap::Space space = Heap::SpaceForAllocation(cid);
+  Heap::Space space = Heap::kNew;
   __ ldr(R3, Address(THR, Thread::heap_offset()));
   __ ldr(R0, Address(R3, Heap::TopOffset(space)));
 
   // length_reg: allocation size.
   __ adds(R1, R0, Operand(length_reg));
   __ b(&fail, CS);  // Fail on unsigned overflow.
 
   // Check if the allocation fits into the remaining space.
   // R0: potential new object start.
   // R1: potential next object start.
@@ skipping 277 matching lines @@
   __ cmp(R0, Operand(0));
   __ LoadObject(R0, Bool::False());
   __ LoadObject(TMP, Bool::True());
   __ csel(R0, TMP, R0, NE);
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64