[turbofan] Fix truncation/representation sloppiness wrt. bool/bit.

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 <sstream>
 #include <string>
@@ skipping 614 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));
       // CheckUpperIs(node, to));
       break;
     }
-    case IrOpcode::kChangeBitToBool: {
-      // Boolean /\ UntaggedInt1 -> Boolean /\ TaggedPtr
-      // TODO(neis): Activate once ChangeRepresentation works in typer.
-      // Type* from = Type::Intersect(Type::Boolean(), Type::UntaggedInt1());
-      // Type* to = Type::Intersect(Type::Boolean(), Type::TaggedPtr());
-      // CheckValueInputIs(node, 0, from));
-      // CheckUpperIs(node, to));
-      break;
-    }
     case IrOpcode::kChangeBoolToBit: {
       // 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));
       // CheckUpperIs(node, to));
       break;
     }
-    case IrOpcode::kChangeWord32ToBit: {
-      // TODO(rossberg): Check.
-      CheckValueInputIs(node, 0, Type::Integral32());
-      break;
-    }
-    case IrOpcode::kChangeWord64ToBit: {
-      // TODO(rossberg): Check.
+    case IrOpcode::kChangeBitToBool: {
+      // Boolean /\ UntaggedInt1 -> Boolean /\ TaggedPtr
+      // TODO(neis): Activate once ChangeRepresentation works in typer.
+      // Type* from = Type::Intersect(Type::Boolean(), Type::UntaggedInt1());
+      // Type* to = Type::Intersect(Type::Boolean(), Type::TaggedPtr());
+      // CheckValueInputIs(node, 0, from));
+      // CheckUpperIs(node, to));
       break;
     }
 
     case IrOpcode::kLoadField:
       // Object -> fieldtype
       // TODO(rossberg): activate once machine ops are typed.
       // CheckValueInputIs(node, 0, Type::Object());
       // CheckUpperIs(node, Field(node).type));
       break;
     case IrOpcode::kLoadBuffer:
@@ skipping 338 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