ARM: Load the heap number map into a register and keep it...

src/arm/codegen-arm.h

 // Copyright 2010 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 651 matching lines @@
            (lhs_.is(r1) && rhs_.is(r0)));
     // Encode the parameters in a unique 18 bit value.
     return OpBits::encode(op_)
            | ModeBits::encode(mode_)
            | KnownIntBits::encode(MinorKeyForKnownInt())
            | TypeInfoBits::encode(runtime_operands_type_)
            | RegisterBits::encode(lhs_.is(r0));
   }
 
   void Generate(MacroAssembler* masm);
-  void HandleNonSmiBitwiseOp(MacroAssembler* masm, Register lhs, Register rhs);
+  void HandleNonSmiBitwiseOp(MacroAssembler* masm,
+                             Register lhs,
+                             Register rhs);
   void HandleBinaryOpSlowCases(MacroAssembler* masm,
                                Label* not_smi,
                                Register lhs,
                                Register rhs,
                                const Builtins::JavaScript& builtin);
   void GenerateTypeTransition(MacroAssembler* masm);
 
   static bool RhsIsOneWeWantToOptimizeFor(Token::Value op, int constant_rhs) {
     if (constant_rhs == CodeGenerator::kUnknownIntValue) return false;
     if (op == Token::DIV) return constant_rhs >= 2 && constant_rhs <= 3;
@@ skipping 301 matching lines @@
     return ObjectBits::encode(object_.code()) |
            OffsetBits::encode(offset_.code()) |
            ScratchBits::encode(scratch_.code());
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CODEGEN_ARM_H_