Ensure we don't clobber the cell on ARM and MIPS

src/arm/code-stubs-arm.cc

 // Copyright 2012 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 3093 matching lines @@
     }
   }
 
   // Fast-case: Invoke the function now.
   // r1: pushed function
   ParameterCount actual(argc_);
 
   if (CallAsMethod()) {
     if (NeedsChecks()) {
       // Do not transform the receiver for strict mode functions.
-      __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
-      __ ldr(r3, FieldMemOperand(r2, SharedFunctionInfo::kCompilerHintsOffset));
-      __ tst(r3, Operand(1 << (SharedFunctionInfo::kStrictModeFunction +
+      __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+      __ ldr(r4, FieldMemOperand(r3, SharedFunctionInfo::kCompilerHintsOffset));
+      __ tst(r4, Operand(1 << (SharedFunctionInfo::kStrictModeFunction +
                                kSmiTagSize)));
       __ b(ne, &cont);
 
       // Do not transform the receiver for native (Compilerhints already in r3).
-      __ tst(r3, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize)));
+      __ tst(r4, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize)));
       __ b(ne, &cont);
     }
 
     // Compute the receiver in non-strict mode.
-    __ ldr(r2, MemOperand(sp, argc_ * kPointerSize));
+    __ ldr(r3, MemOperand(sp, argc_ * kPointerSize));
 
     if (NeedsChecks()) {
-      // r0: actual number of arguments
-      // r1: function
-      // r2: first argument
-      __ JumpIfSmi(r2, &wrap);
-      __ CompareObjectType(r2, r3, r3, FIRST_SPEC_OBJECT_TYPE);
+      __ JumpIfSmi(r3, &wrap);
+      __ CompareObjectType(r3, r4, r4, FIRST_SPEC_OBJECT_TYPE);
       __ b(lt, &wrap);
     } else {
       __ jmp(&wrap);
     }
 
     __ bind(&cont);
   }
   __ InvokeFunction(r1, actual, JUMP_FUNCTION, NullCallWrapper());
 
   if (NeedsChecks()) {
@@ skipping 29 matching lines @@
     __ mov(r2, Operand::Zero());
     __ GetBuiltinFunction(r1, Builtins::CALL_NON_FUNCTION);
     __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
             RelocInfo::CODE_TARGET);
   }
 
   if (CallAsMethod()) {
     __ bind(&wrap);
     // Wrap the receiver and patch it back onto the stack.
     { FrameScope frame_scope(masm, StackFrame::INTERNAL);
-      __ push(r1);
-      __ push(r2);
+      __ Push(r1, r3);
       __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
       __ pop(r1);
     }
     __ str(r0, MemOperand(sp, argc_ * kPointerSize));
     __ jmp(&cont);
   }
 }
 
 
 void CallConstructStub::Generate(MacroAssembler* masm) {
@@ skipping 2364 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM