A64: Use a scope utility to allocate scratch registers.

src/a64/ic-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 1056 matching lines @@
   // Transition the array appropriately depending on the value type.
   __ Ldr(x10, FieldMemOperand(value, HeapObject::kMapOffset));
   __ JumpIfNotRoot(x10, Heap::kHeapNumberMapRootIndex, &non_double_value);
 
   // Value is a double. Transition FAST_SMI_ELEMENTS ->
   // FAST_DOUBLE_ELEMENTS and complete the store.
   __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
                                          FAST_DOUBLE_ELEMENTS,
                                          receiver_map,
                                          x10,
+                                         x11,
                                          slow);
   ASSERT(receiver_map.Is(x3));  // Transition code expects map in x3.
   AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS,
                                                     FAST_DOUBLE_ELEMENTS);
   ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, slow);
   __ Ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   __ B(&fast_double_without_map_check);
 
   __ Bind(&non_double_value);
   // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS.
   __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
                                          FAST_ELEMENTS,
                                          receiver_map,
                                          x10,
+                                         x11,
                                          slow);
   ASSERT(receiver_map.Is(x3));  // Transition code expects map in x3.
   mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS);
   ElementsTransitionGenerator::GenerateMapChangeElementsTransition(masm, mode,
                                                                    slow);
   __ Ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   __ B(&finish_store);
 
   __ Bind(&transition_double_elements);
   // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a
   // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and
   // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS
   __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS,
                                          FAST_ELEMENTS,
                                          receiver_map,
                                          x10,
+                                         x11,
                                          slow);
   ASSERT(receiver_map.Is(x3));  // Transition code expects map in x3.
   mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS);
   ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, slow);
   __ Ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   __ B(&finish_store);
 }
 
 
 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
@@ skipping 287 matching lines @@
     ASSERT(to_patch->Mask(TestBranchMask) == TBNZ);
     // This is JumpIfSmi(smi_reg, branch_imm).
     patcher.tbz(smi_reg, 0, branch_imm);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64