[turbofan] Don't eagerly introduce machine operators in JSTypedLowering.

src/compiler/js-typed-lowering.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/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/linkage.h"
@@ skipping 579 matching lines @@
     }
     r.ChangeToPureOperator(stringOp);
     return Changed(node);
   }
 
   CompareOperationHints::Hint hint = r.GetNumberCompareOperationFeedback();
   if (hint != CompareOperationHints::kAny ||
       r.OneInputCannotBe(Type::StringOrReceiver())) {
     const Operator* less_than;
     const Operator* less_than_or_equal;
-    if (r.BothInputsAre(Type::Unsigned32())) {
-      less_than = machine()->Uint32LessThan();
-      less_than_or_equal = machine()->Uint32LessThanOrEqual();
-    } else if (r.BothInputsAre(Type::Signed32())) {
-      less_than = machine()->Int32LessThan();
-      less_than_or_equal = machine()->Int32LessThanOrEqual();
-    } else if (hint != CompareOperationHints::kAny) {
+    if (hint != CompareOperationHints::kAny) {
       less_than = simplified()->SpeculativeNumberLessThan(hint);
       less_than_or_equal = simplified()->SpeculativeNumberLessThanOrEqual(hint);
     } else {
-      // TODO(turbofan): mixed signed/unsigned int32 comparisons.
       Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
       r.ConvertInputsToNumber(frame_state);
       less_than = simplified()->NumberLessThan();
       less_than_or_equal = simplified()->NumberLessThanOrEqual();
     }
     const Operator* comparison;
     switch (node->opcode()) {
       case IrOpcode::kJSLessThan:
         comparison = less_than;
         break;
@@ skipping 1412 matching lines @@
 }
 
 
 CompilationDependencies* JSTypedLowering::dependencies() const {
   return dependencies_;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8