Porting r9392 to arm (smi-only arrays).

src/arm/macro-assembler-arm.cc

 // Copyright 2011 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 1849 matching lines @@
                                        Register scratch,
                                        Label* fail) {
   STATIC_ASSERT(FAST_SMI_ONLY_ELEMENTS == 0);
   STATIC_ASSERT(FAST_ELEMENTS == 1);
   ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
   cmp(scratch, Operand(Map::kMaximumBitField2FastElementValue));
   b(hi, fail);
 }
 
 
+void MacroAssembler::CheckFastObjectElements(Register map,
+                                             Register scratch,
+                                             Label* fail) {
+  STATIC_ASSERT(FAST_SMI_ONLY_ELEMENTS == 0);
+  STATIC_ASSERT(FAST_ELEMENTS == 1);
+  ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
+  cmp(scratch, Operand(Map::kMaximumBitField2FastSmiOnlyElementValue));
+  b(ls, fail);
+  cmp(scratch, Operand(Map::kMaximumBitField2FastElementValue));
+  b(hi, fail);
+}
+
+
+void MacroAssembler::CheckFastSmiOnlyElements(Register map,
+                                              Register scratch,
+                                              Label* fail) {
+  STATIC_ASSERT(FAST_SMI_ONLY_ELEMENTS == 0);
+  ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
+  cmp(scratch, Operand(Map::kMaximumBitField2FastSmiOnlyElementValue));
+  b(hi, fail);
+}
+
+
 void MacroAssembler::CheckMap(Register obj,
                               Register scratch,
                               Handle<Map> map,
                               Label* fail,
                               SmiCheckType smi_check_type) {
   if (smi_check_type == DO_SMI_CHECK) {
     JumpIfSmi(obj, fail);
   }
   ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset));
   mov(ip, Operand(map));
@@ skipping 1673 matching lines @@
 void CodePatcher::EmitCondition(Condition cond) {
   Instr instr = Assembler::instr_at(masm_.pc_);
   instr = (instr & ~kCondMask) | cond;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM