MIPS: [turbofan] Support for %_DoubleHi, %_DoubleLo and %_ConstructDouble.

src/mips/macro-assembler-mips.h

 // 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.
 
 #ifndef V8_MIPS_MACRO_ASSEMBLER_MIPS_H_
 #define V8_MIPS_MACRO_ASSEMBLER_MIPS_H_
 
 #include "src/assembler.h"
 #include "src/globals.h"
 #include "src/mips/assembler-mips.h"
@@ skipping 223 matching lines @@
 
   inline void Move(Register dst_low, Register dst_high, FPURegister src) {
     mfc1(dst_low, src);
     Mfhc1(dst_high, src);
   }
 
   inline void FmoveHigh(Register dst_high, FPURegister src) {
     Mfhc1(dst_high, src);
   }
 
+  inline void FmoveHigh(FPURegister dst, Register src_high) {
+    Mthc1(src_high, dst);
+  }
+
   inline void FmoveLow(Register dst_low, FPURegister src) {
     mfc1(dst_low, src);
   }
 
+  void FmoveLow(FPURegister dst, Register src_low);
+
   inline void Move(FPURegister dst, Register src_low, Register src_high) {
     mtc1(src_low, dst);
     Mthc1(src_high, dst);
   }
 
   void Move(FPURegister dst, float imm);
   void Move(FPURegister dst, double imm);
 
   // Conditional move.
   void Movz(Register rd, Register rs, Register rt);
@@ skipping 1450 matching lines @@
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_MACRO_ASSEMBLER_MIPS_H_