[cleanup] Drop unused Allocate*String MacroAssembler instructions

src/arm64/macro-assembler-arm64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 
 #include <vector>
 
 #include "src/arm64/assembler-arm64.h"
@@ skipping 1083 matching lines @@
   // ---- Object Utilities ----
 
   // Initialize fields with filler values.  Fields starting at |current_address|
   // not including |end_address| are overwritten with the value in |filler|.  At
   // the end the loop, |current_address| takes the value of |end_address|.
   void InitializeFieldsWithFiller(Register current_address,
                                   Register end_address, Register filler);
 
   // ---- String Utilities ----
 
-
-  // Jump to label if either object is not a sequential one-byte string.
-  // Optionally perform a smi check on the objects first.
-  void JumpIfEitherIsNotSequentialOneByteStrings(
-      Register first, Register second, Register scratch1, Register scratch2,
-      Label* failure, SmiCheckType smi_check = DO_SMI_CHECK);
-
-  // Check if instance type is sequential one-byte string and jump to label if
-  // it is not.
-  void JumpIfInstanceTypeIsNotSequentialOneByte(Register type, Register scratch,
-                                                Label* failure);
-
-  // Checks if both instance types are sequential one-byte strings and jumps to
-  // label if either is not.
-  void JumpIfEitherInstanceTypeIsNotSequentialOneByte(
-      Register first_object_instance_type, Register second_object_instance_type,
-      Register scratch1, Register scratch2, Label* failure);
-
   // Checks if both instance types are sequential one-byte strings and jumps to
   // label if either is not.
   void JumpIfBothInstanceTypesAreNotSequentialOneByte(
       Register first_object_instance_type, Register second_object_instance_type,
       Register scratch1, Register scratch2, Label* failure);
 
   void JumpIfNotUniqueNameInstanceType(Register type, Label* not_unique_name);
 
   // ---- Calling / Jumping helpers ----
 
@@ skipping 221 matching lines @@
 
   // FastAllocate is right now only used for folded allocations. It just
   // increments the top pointer without checking against limit. This can only
   // be done if it was proved earlier that the allocation will succeed.
   void FastAllocate(Register object_size, Register result, Register result_end,
                     Register scratch, AllocationFlags flags);
 
   void FastAllocate(int object_size, Register result, Register scratch1,
                     Register scratch2, AllocationFlags flags);
 
-  void AllocateTwoByteString(Register result,
-                             Register length,
-                             Register scratch1,
-                             Register scratch2,
-                             Register scratch3,
-                             Label* gc_required);
-  void AllocateOneByteString(Register result, Register length,
-                             Register scratch1, Register scratch2,
-                             Register scratch3, Label* gc_required);
-  void AllocateTwoByteConsString(Register result,
-                                 Register length,
-                                 Register scratch1,
-                                 Register scratch2,
-                                 Label* gc_required);
-  void AllocateOneByteConsString(Register result, Register length,
-                                 Register scratch1, Register scratch2,
-                                 Label* gc_required);
-  void AllocateTwoByteSlicedString(Register result,
-                                   Register length,
-                                   Register scratch1,
-                                   Register scratch2,
-                                   Label* gc_required);
-  void AllocateOneByteSlicedString(Register result, Register length,
-                                   Register scratch1, Register scratch2,
-                                   Label* gc_required);
-
   // Allocates a heap number or jumps to the gc_required label if the young
   // space is full and a scavenge is needed.
   // All registers are clobbered.
   // If no heap_number_map register is provided, the function will take care of
   // loading it.
   void AllocateHeapNumber(Register result,
                           Label* gc_required,
                           Register scratch1,
                           Register scratch2,
                           CPURegister value = NoFPReg,
@@ skipping 830 matching lines @@
   class RegisterBits : public BitField<unsigned, 0, 5> {};
   class DeltaBits : public BitField<uint32_t, 5, 32-5> {};
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #define ACCESS_MASM(masm) masm->
 
 #endif  // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_