[turbofan] Optimize division/modulus by constant.

src/compiler/instruction-selector.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/instruction-selector.h"
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/pipeline.h"
@@ skipping 640 matching lines @@
     case IrOpcode::kInt32Add:
       return VisitInt32Add(node);
     case IrOpcode::kInt32AddWithOverflow:
       return VisitInt32AddWithOverflow(node);
     case IrOpcode::kInt32Sub:
       return VisitInt32Sub(node);
     case IrOpcode::kInt32SubWithOverflow:
       return VisitInt32SubWithOverflow(node);
     case IrOpcode::kInt32Mul:
       return VisitInt32Mul(node);
+    case IrOpcode::kInt32MulHigh:
+      return VisitInt32MulHigh(node);
     case IrOpcode::kInt32Div:
       return VisitInt32Div(node);
     case IrOpcode::kInt32Mod:
       return VisitInt32Mod(node);
     case IrOpcode::kInt32LessThan:
       return VisitInt32LessThan(node);
     case IrOpcode::kInt32LessThanOrEqual:
       return VisitInt32LessThanOrEqual(node);
     case IrOpcode::kUint32Div:
       return VisitUint32Div(node);
@@ skipping 351 matching lines @@
 void InstructionSelector::VisitBranch(Node* branch, BasicBlock* tbranch,
                                       BasicBlock* fbranch) {
   UNIMPLEMENTED();
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8