[turbofan] Introduce integer multiplication with overflow.

src/compiler/typer.cc

 // Copyright 2014 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.
 
 #include "src/compiler/typer.h"
 
 #include "src/base/flags.h"
 #include "src/bootstrapper.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/common-operator.h"
@@ skipping 2042 matching lines @@
 Type* Typer::Visitor::TypeInt32Sub(Node* node) { return Type::Integral32(); }
 
 
 Type* Typer::Visitor::TypeInt32SubWithOverflow(Node* node) {
   return Type::Internal();
 }
 
 
 Type* Typer::Visitor::TypeInt32Mul(Node* node) { return Type::Integral32(); }
 
+Type* Typer::Visitor::TypeInt32MulWithOverflow(Node* node) {
+  return Type::Internal();
+}
 
 Type* Typer::Visitor::TypeInt32MulHigh(Node* node) { return Type::Signed32(); }
 
 
 Type* Typer::Visitor::TypeInt32Div(Node* node) { return Type::Integral32(); }
 
 
 Type* Typer::Visitor::TypeInt32Mod(Node* node) { return Type::Integral32(); }
 
 
@@ skipping 35 matching lines @@
 Type* Typer::Visitor::TypeInt64Sub(Node* node) { return Type::Internal(); }
 
 
 Type* Typer::Visitor::TypeInt64SubWithOverflow(Node* node) {
   return Type::Internal();
 }
 
 
 Type* Typer::Visitor::TypeInt64Mul(Node* node) { return Type::Internal(); }
 
-
 Type* Typer::Visitor::TypeInt64Div(Node* node) { return Type::Internal(); }
 
 
 Type* Typer::Visitor::TypeInt64Mod(Node* node) { return Type::Internal(); }
 
 
 Type* Typer::Visitor::TypeInt64LessThan(Node* node) { return Type::Boolean(); }
 
 
 Type* Typer::Visitor::TypeInt64LessThanOrEqual(Node* node) {
@@ skipping 441 matching lines @@
   }
   if (Type::IsInteger(*value)) {
     return Type::Range(value->Number(), value->Number(), zone());
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8