Add assembler test.

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 612 matching lines @@
   DEFINE_INSTRUCTION2(Neg);
 
   DEFINE_INSTRUCTION(Slt);
   DEFINE_INSTRUCTION(Sltu);
 
   // MIPS32 R2 instruction macro.
   DEFINE_INSTRUCTION(Ror);
 
 #undef DEFINE_INSTRUCTION
 #undef DEFINE_INSTRUCTION2
+#undef DEFINE_INSTRUCTION3
 
+  void Lsa(Register rd, Register rs, Register rt, uint8_t sa,
+           Register scratch = at);
   void Pref(int32_t hint, const MemOperand& rs);
 
 
   // ---------------------------------------------------------------------------
   // Pseudo-instructions.
 
   void mov(Register rd, Register rt) { or_(rd, rt, zero_reg); }
 
   void Ulw(Register rd, const MemOperand& rs);
   void Usw(Register rd, const MemOperand& rs);
@@ skipping 1103 matching lines @@
 #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 internal
 }  // namespace v8
 
 #endif  // V8_MIPS_MACRO_ASSEMBLER_MIPS_H_