Remove DoubleRepresentation from globals.h

src/arm/macro-assembler-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 986 matching lines @@
                                             const Condition cond) {
   // Compare and load FPSCR.
   vcmp(src1, src2, cond);
   vmrs(fpscr_flags, cond);
 }
 
 
 void MacroAssembler::Vmov(const DwVfpRegister dst,
                           const double imm,
                           const Register scratch) {
-  static const DoubleRepresentation minus_zero(-0.0);
-  static const DoubleRepresentation zero(0.0);
-  DoubleRepresentation value_rep(imm);
+  int64_t imm_bits = bit_cast<int64_t>(imm);
   // Handle special values first.
-  if (value_rep == zero) {
+  if (imm_bits == bit_cast<int64_t>(0.0)) {
     vmov(dst, kDoubleRegZero);
-  } else if (value_rep == minus_zero) {
+  } else if (imm_bits == bit_cast<int64_t>(-0.0)) {
     vneg(dst, kDoubleRegZero);
   } else {
     vmov(dst, imm, scratch);
   }
 }
 
 
 void MacroAssembler::VmovHigh(Register dst, DwVfpRegister src) {
   if (src.code() < 16) {
     const LowDwVfpRegister loc = LowDwVfpRegister::from_code(src.code());
@@ skipping 2998 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM