MIPS: [wasm] Implement Int32MulPair operator.

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 631 matching lines @@
   DEFINE_INSTRUCTION(Modu);
   DEFINE_INSTRUCTION(Mulh);
   DEFINE_INSTRUCTION2(Mult);
   DEFINE_INSTRUCTION(Mulhu);
   DEFINE_INSTRUCTION2(Multu);
   DEFINE_INSTRUCTION2(Div);
   DEFINE_INSTRUCTION2(Divu);
 
   DEFINE_INSTRUCTION3(Div);
   DEFINE_INSTRUCTION3(Mul);
+  DEFINE_INSTRUCTION3(Mulu);
 
   DEFINE_INSTRUCTION(And);
   DEFINE_INSTRUCTION(Or);
   DEFINE_INSTRUCTION(Xor);
   DEFINE_INSTRUCTION(Nor);
   DEFINE_INSTRUCTION2(Neg);
 
   DEFINE_INSTRUCTION(Slt);
   DEFINE_INSTRUCTION(Sltu);
 
@@ skipping 1180 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_