A64: ElementsKind TODOs

src/a64/macro-assembler-a64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3626 matching lines @@
 
 void MacroAssembler::TestMapBitfield(Register object, uint64_t mask) {
   UseScratchRegisterScope temps(this);
   Register temp = temps.AcquireX();
   Ldr(temp, FieldMemOperand(object, HeapObject::kMapOffset));
   Ldrb(temp, FieldMemOperand(temp, Map::kBitFieldOffset));
   Tst(temp, mask);
 }
 
 
-void MacroAssembler::LoadElementsKind(Register result, Register object) {
-  // Load map.
-  __ Ldr(result, FieldMemOperand(object, HeapObject::kMapOffset));
+void MacroAssembler::LoadElementsKindFromMap(Register result, Register map) {
   // Load the map's "bit field 2".
-  __ Ldrb(result, FieldMemOperand(result, Map::kBitField2Offset));
+  __ Ldrb(result, FieldMemOperand(map, Map::kBitField2Offset));
   // Retrieve elements_kind from bit field 2.
   __ Ubfx(result, result, Map::kElementsKindShift, Map::kElementsKindBitCount);
 }
 
 
 void MacroAssembler::TryGetFunctionPrototype(Register function,
                                              Register result,
                                              Register scratch,
                                              Label* miss,
                                              BoundFunctionAction action) {
@@ skipping 137 matching lines @@
   STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3);
   Ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
   Cmp(scratch, Operand(Map::kMaximumBitField2FastHoleySmiElementValue));
   // If cond==ls, set cond=hi, otherwise compare.
   Ccmp(scratch,
        Operand(Map::kMaximumBitField2FastHoleyElementValue), CFlag, hi);
   B(hi, fail);
 }
 
 
-void MacroAssembler::CheckFastSmiElements(Register map,
-                                          Register scratch,
-                                          Label* fail) {
-  STATIC_ASSERT(FAST_SMI_ELEMENTS == 0);
-  STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
-  Ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
-  Cmp(scratch, Map::kMaximumBitField2FastHoleySmiElementValue);
-  B(hi, fail);
-}
-
-
 // Note: The ARM version of this clobbers elements_reg, but this version does
 // not. Some uses of this in A64 assume that elements_reg will be preserved.
 void MacroAssembler::StoreNumberToDoubleElements(Register value_reg,
                                                  Register key_reg,
                                                  Register elements_reg,
                                                  Register scratch1,
                                                  FPRegister fpscratch1,
                                                  FPRegister fpscratch2,
                                                  Label* fail,
                                                  int elements_offset) {
@@ skipping 1310 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64