Fix verification of Int64Constant

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 <deque>
 #include <queue>
 
 #include "src/compiler/generic-algorithm.h"
@@ skipping 206 matching lines @@
         // Type can be anything.
         CHECK(bounds(node).upper->Is(Type::Any()));
         break;
       }
       case IrOpcode::kInt32Constant:  // TODO(rossberg): rename Word32Constant?
         // Constants have no inputs.
         CHECK_EQ(0, input_count);
         // Type is a 32 bit integer, signed or unsigned.
         CHECK(bounds(node).upper->Is(Type::Integral32()));
         break;
-      case IrOpcode::kInt64Constant:  // Close enough...
+      case IrOpcode::kInt64Constant:
+        // Constants have no inputs.
+        CHECK_EQ(0, input_count);
+        // Type is internal.
+        // TODO(rossberg): Introduce proper Int64 type.
+        CHECK(bounds(node).upper->Is(Type::Internal()));
+        break;
       case IrOpcode::kFloat32Constant:
       case IrOpcode::kFloat64Constant:
       case IrOpcode::kNumberConstant:
         // Constants have no inputs.
         CHECK_EQ(0, input_count);
         // Type is a number.
         CHECK(bounds(node).upper->Is(Type::Number()));
         break;
       case IrOpcode::kHeapConstant:
         // Constants have no inputs.
@@ skipping 658 matching lines @@
     // Check inputs for all nodes in the block.
     for (size_t i = 0; i < block->NodeCount(); i++) {
       Node* node = block->NodeAt(i);
       CheckInputsDominate(schedule, block, node, static_cast<int>(i) - 1);
     }
   }
 }
 }
 }
 }  // namespace v8::internal::compiler