[turbofan] Initial version of number type feedback.

src/compiler/verifier.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/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 664 matching lines @@
       CheckValueInputIs(node, 1, Type::NumberOrUndefined());
       CheckUpperIs(node, Type::Boolean());
       break;
     case IrOpcode::kNumberLessThan:
     case IrOpcode::kNumberLessThanOrEqual:
       // (Number, Number) -> Boolean
       CheckValueInputIs(node, 0, Type::NumberOrUndefined());
       CheckValueInputIs(node, 1, Type::NumberOrUndefined());
       CheckUpperIs(node, Type::Boolean());
       break;
+    case IrOpcode::kSpeculativeNumberAdd:
+    case IrOpcode::kSpeculativeNumberSubtract:
+      break;
     case IrOpcode::kNumberAdd:
     case IrOpcode::kNumberSubtract:
     case IrOpcode::kNumberMultiply:
     case IrOpcode::kNumberDivide:
       // (Number, Number) -> Number
       CheckValueInputIs(node, 0, Type::NumberOrUndefined());
       CheckValueInputIs(node, 1, Type::NumberOrUndefined());
       // CheckUpperIs(node, Type::Number());
       break;
     case IrOpcode::kNumberModulus:
@@ skipping 184 matching lines @@
     case IrOpcode::kTruncateTaggedToWord32: {
       // Number /\ Tagged -> Signed32 /\ UntaggedInt32
       // TODO(neis): Activate once ChangeRepresentation works in typer.
       // Type* from = Type::Intersect(Type::Number(), Type::Tagged());
       // Type* to = Type::Intersect(Type::Number(), Type::UntaggedInt32());
       // CheckValueInputIs(node, 0, from));
       // CheckUpperIs(node, to));
       break;
     }
 
+    case IrOpcode::kCheckedUint32ToInt32:
+    case IrOpcode::kCheckedFloat64ToInt32:
+    case IrOpcode::kCheckedTaggedToInt32:
+    case IrOpcode::kCheckedTaggedToFloat64:
+      break;
+
     case IrOpcode::kLoadField:
       // Object -> fieldtype
       // TODO(rossberg): activate once machine ops are typed.
       // CheckValueInputIs(node, 0, Type::Object());
       // CheckUpperIs(node, FieldAccessOf(node->op()).type));
       break;
     case IrOpcode::kLoadBuffer:
       break;
     case IrOpcode::kLoadElement:
       // Object -> elementtype
@@ skipping 482 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8