[turbofan] Improve representation selection for HeapObject checking.

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 970 matching lines @@
     }
     case IrOpcode::kChangeFloat64ToTagged: {
       // Number /\ UntaggedFloat64 -> Number /\ Tagged
       // TODO(neis): Activate once ChangeRepresentation works in typer.
       // Type* from =Type::Intersect(Type::Number(), Type::UntaggedFloat64());
       // Type* to = Type::Intersect(Type::Number(), Type::Tagged());
       // CheckValueInputIs(node, 0, from));
       // CheckTypeIs(node, to));
       break;
     }
+    case IrOpcode::kChangeFloat64ToTaggedPointer:
+      break;
     case IrOpcode::kChangeTaggedToBit: {
       // Boolean /\ TaggedPtr -> Boolean /\ UntaggedInt1
       // TODO(neis): Activate once ChangeRepresentation works in typer.
       // Type* from = Type::Intersect(Type::Boolean(), Type::TaggedPtr());
       // Type* to = Type::Intersect(Type::Boolean(), Type::UntaggedInt1());
       // CheckValueInputIs(node, 0, from));
       // CheckTypeIs(node, to));
       break;
     }
     case IrOpcode::kChangeBitToTagged: {
@@ skipping 57 matching lines @@
     case IrOpcode::kCheckedUint32Mod:
     case IrOpcode::kCheckedInt32Mul:
     case IrOpcode::kCheckedInt32ToTaggedSigned:
     case IrOpcode::kCheckedUint32ToInt32:
     case IrOpcode::kCheckedUint32ToTaggedSigned:
     case IrOpcode::kCheckedFloat64ToInt32:
     case IrOpcode::kCheckedTaggedSignedToInt32:
     case IrOpcode::kCheckedTaggedToInt32:
     case IrOpcode::kCheckedTaggedToFloat64:
     case IrOpcode::kCheckedTaggedToTaggedSigned:
+    case IrOpcode::kCheckedTaggedToTaggedPointer:
     case IrOpcode::kCheckedTruncateTaggedToWord32:
       break;
 
     case IrOpcode::kCheckFloat64Hole:
       CheckValueInputIs(node, 0, Type::Number());
       CheckTypeIs(node, Type::Number());
       break;
     case IrOpcode::kCheckTaggedHole:
       CheckValueInputIs(node, 0, Type::Any());
       CheckTypeIs(node, Type::NonInternal());
@@ skipping 539 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8