VM: Remove collection of unused range feedback.

runtime/vm/assembler_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"  // NOLINT
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/longjump.h"
@@ skipping 1018 matching lines @@
 }
 
 
 void Assembler::LoadTaggedClassIdMayBeSmi(Register result, Register object) {
   LoadClassIdMayBeSmi(result, object);
   // Finally, tag the result.
   SmiTag(result);
 }
 
 
-void Assembler::ComputeRange(Register result,
-                             Register value,
-                             Register scratch,
-                             Label* not_mint) {
-  Label done, not_smi;
-  tsti(value, Immediate(kSmiTagMask));
-  b(&not_smi, NE);
-
-  AsrImmediate(scratch, value, 32);
-  LoadImmediate(result, ICData::kUint32RangeBit);
-  cmp(scratch, Operand(1));
-  b(&done, EQ);
-
-  neg(scratch, scratch);
-  add(result, scratch, Operand(ICData::kInt32RangeBit));
-  cmp(scratch, Operand(1));
-  LoadImmediate(TMP, ICData::kSignedRangeBit);
-  csel(result, result, TMP, LS);
-  b(&done);
-
-  Bind(&not_smi);
-  CompareClassId(value, kMintCid);
-  b(not_mint, NE);
-
-  LoadImmediate(result, ICData::kInt64RangeBit);
-  Bind(&done);
-}
-
-
-void Assembler::UpdateRangeFeedback(Register value,
-                                    intptr_t index,
-                                    Register ic_data,
-                                    Register scratch1,
-                                    Register scratch2,
-                                    Label* miss) {
-  ASSERT(ICData::IsValidRangeFeedbackIndex(index));
-  ComputeRange(scratch1, value, scratch2, miss);
-  ldr(scratch2, FieldAddress(ic_data, ICData::state_bits_offset()), kWord);
-  orrw(scratch2,
-       scratch2,
-       Operand(scratch1, LSL, ICData::RangeFeedbackShift(index)));
-  str(scratch2, FieldAddress(ic_data, ICData::state_bits_offset()), kWord);
-}
-
-
 // Frame entry and exit.
 void Assembler::ReserveAlignedFrameSpace(intptr_t frame_space) {
   // Reserve space for arguments and align frame before entering
   // the C++ world.
   if (frame_space != 0) {
     AddImmediate(SP, SP, -frame_space);
   }
   if (OS::ActivationFrameAlignment() > 1) {
     andi(SP, SP, Immediate(~(OS::ActivationFrameAlignment() - 1)));
   }
@@ skipping 377 matching lines @@
     add(base, array, Operand(index, LSL, shift));
   }
   const OperandSize size = Address::OperandSizeFor(cid);
   ASSERT(Address::CanHoldOffset(offset, Address::Offset, size));
   return Address(base, offset, Address::Offset, size);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64