[turbofan] Implementation of Word32PairShl on arm.

src/arm/macro-assembler-arm.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_ARM_MACRO_ASSEMBLER_ARM_H_
 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 527 matching lines @@
 
   void Vmov(const DwVfpRegister dst,
             const double imm,
             const Register scratch = no_reg);
 
   void VmovHigh(Register dst, DwVfpRegister src);
   void VmovHigh(DwVfpRegister dst, Register src);
   void VmovLow(Register dst, DwVfpRegister src);
   void VmovLow(DwVfpRegister dst, Register src);
 
+  void PairLsl(Register dst_low, Register dst_high, Register src_low,
+               Register src_high, Register scratch, Register shift);
+  void PairLsl(Register dst_low, Register dst_high, Register src_low,
+               Register src_high, Register scratch, uint32_t shift);
+
   // Loads the number from object into dst register.
   // If |object| is neither smi nor heap number, |not_number| is jumped to
   // with |object| still intact.
   void LoadNumber(Register object,
                   LowDwVfpRegister dst,
                   Register heap_number_map,
                   Register scratch,
                   Label* not_number);
 
   // Loads the number from object into double_dst in the double format.
@@ skipping 989 matching lines @@
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_