}
-void LCodeGen::DoCheckMapCommon(Register map_reg,
+void LCodeGen::DoCheckMapCommon(Register reg,
+ Register scratch,
Handle<Map> map,
CompareMapMode mode,
LEnvironment* env) {
Label success;
- __ CompareMap(map_reg, map, &success, mode);
+ __ CompareMap(reg, scratch, map, &success, mode);
DeoptimizeIf(ne, env);
__ bind(&success);
}
void LCodeGen::DoCheckMaps(LCheckMaps* instr) {
- Register map_reg = scratch0();
+ Register scratch = scratch0();
LOperand* input = instr->value();
ASSERT(input->IsRegister());
Register reg = ToRegister(input);
Label success;
SmallMapList* map_set = instr->hydrogen()->map_set();
- __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
for (int i = 0; i < map_set->length() - 1; i++) {
Handle<Map> map = map_set->at(i);
- __ CompareMap(map_reg, map, &success, REQUIRE_EXACT_MAP);
+ __ CompareMap(reg, scratch, map, &success, REQUIRE_EXACT_MAP);
__ b(eq, &success);
}
Handle<Map> map = map_set->last();
- DoCheckMapCommon(map_reg, map, REQUIRE_EXACT_MAP, instr->environment());
+ DoCheckMapCommon(reg, scratch, map, REQUIRE_EXACT_MAP, instr->environment());
__ bind(&success);
}
void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) {
ASSERT(instr->temp()->Equals(instr->result()));
- Register prototype_reg = ToRegister(instr->temp());
- Register map_reg = ToRegister(instr->temp2());
+ Register temp1 = ToRegister(instr->temp());
+ Register temp2 = ToRegister(instr->temp2());
Handle<JSObject> holder = instr->holder();
Handle<JSObject> current_prototype = instr->prototype();
// Load prototype object.
- __ LoadHeapObject(prototype_reg, current_prototype);
+ __ LoadHeapObject(temp1, current_prototype);
// Check prototype maps up to the holder.
while (!current_prototype.is_identical_to(holder)) {
- __ ldr(map_reg, FieldMemOperand(prototype_reg, HeapObject::kMapOffset));
- DoCheckMapCommon(map_reg,
+ DoCheckMapCommon(temp1, temp2,
Handle<Map>(current_prototype->map()),
ALLOW_ELEMENT_TRANSITION_MAPS, instr->environment());
current_prototype =
Handle<JSObject>(JSObject::cast(current_prototype->GetPrototype()));
// Load next prototype object.
- __ LoadHeapObject(prototype_reg, current_prototype);
+ __ LoadHeapObject(temp1, current_prototype);
}
// Check the holder map.
- DoCheckMapCommon(map_reg,
+ DoCheckMapCommon(temp1, temp2,
Handle<Map>(current_prototype->map()),
ALLOW_ELEMENT_TRANSITION_MAPS, instr->environment());
}