Merged: Squashed multiple commits.

src/compiler/typed-optimization.cc

 // Copyright 2016 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/typed-optimization.h"
 
 #include "src/compilation-dependencies.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
@@ skipping 60 matching lines @@
         ReplaceWithValue(node, replacement);
         return Changed(replacement);
       }
     }
   }
   switch (node->opcode()) {
     case IrOpcode::kCheckHeapObject:
       return ReduceCheckHeapObject(node);
     case IrOpcode::kCheckMaps:
       return ReduceCheckMaps(node);
+    case IrOpcode::kCheckNumber:
+      return ReduceCheckNumber(node);
     case IrOpcode::kCheckString:
       return ReduceCheckString(node);
     case IrOpcode::kLoadField:
       return ReduceLoadField(node);
     case IrOpcode::kNumberCeil:
     case IrOpcode::kNumberRound:
     case IrOpcode::kNumberTrunc:
       return ReduceNumberRoundop(node);
     case IrOpcode::kNumberFloor:
       return ReduceNumberFloor(node);
@@ skipping 52 matching lines @@
         if (object_map->CanTransition()) {
           dependencies()->AssumeMapStable(object_map);
         }
         return Replace(effect);
       }
     }
   }
   return NoChange();
 }
 
+Reduction TypedOptimization::ReduceCheckNumber(Node* node) {
+  Node* const input = NodeProperties::GetValueInput(node, 0);
+  Type* const input_type = NodeProperties::GetType(input);
+  if (input_type->Is(Type::Number())) {
+    ReplaceWithValue(node, input);
+    return Replace(input);
+  }
+  return NoChange();
+}
+
 Reduction TypedOptimization::ReduceCheckString(Node* node) {
   Node* const input = NodeProperties::GetValueInput(node, 0);
   Type* const input_type = NodeProperties::GetType(input);
   if (input_type->Is(Type::String())) {
     ReplaceWithValue(node, input);
     return Replace(input);
   }
   return NoChange();
 }
 
@@ skipping 153 matching lines @@
 
 Isolate* TypedOptimization::isolate() const { return jsgraph()->isolate(); }
 
 SimplifiedOperatorBuilder* TypedOptimization::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8