[turbofan] Introduce integer multiplication with overflow.

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 1318 matching lines @@
   }
 
   void SubBranchOvf(Register dst, Register left, const Operand& right,
                     Label* overflow_label, Label* no_overflow_label,
                     Register scratch = at);
 
   void SubBranchOvf(Register dst, Register left, Register right,
                     Label* overflow_label, Label* no_overflow_label,
                     Register scratch = at);
 
+  inline void MulBranchOvf(Register dst, Register left, const Operand& right,
+                           Label* overflow_label, Register scratch = at) {
+    MulBranchOvf(dst, left, right, overflow_label, nullptr, scratch);
+  }
+
+  inline void MulBranchNoOvf(Register dst, Register left, const Operand& right,
+                             Label* no_overflow_label, Register scratch = at) {
+    MulBranchOvf(dst, left, right, nullptr, no_overflow_label, scratch);
+  }
+
+  void MulBranchOvf(Register dst, Register left, const Operand& right,
+                    Label* overflow_label, Label* no_overflow_label,
+                    Register scratch = at);
+
+  void MulBranchOvf(Register dst, Register left, Register right,
+                    Label* overflow_label, Label* no_overflow_label,
+                    Register scratch = at);
+
   // -------------------------------------------------------------------------
   // Runtime calls.
 
   // See comments at the beginning of CEntryStub::Generate.
   inline void PrepareCEntryArgs(int num_args) { li(a0, num_args); }
 
   inline void PrepareCEntryFunction(const ExternalReference& ref) {
     li(a1, Operand(ref));
   }
 
@@ skipping 555 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_