[turbofan] Address the useless overflow bit materialization.

src/compiler/common-operator.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/common-operator.h"
 
 #include "src/assembler.h"
 #include "src/base/lazy-instance.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/opcodes.h"
@@ skipping 451 matching lines @@
   CACHED_PARAMETER_LIST(CACHED_PARAMETER)
 #undef CACHED_PARAMETER
 
   template <size_t kIndex>
   struct ProjectionOperator final : public Operator1<size_t> {
     ProjectionOperator()
         : Operator1<size_t>(          // --
               IrOpcode::kProjection,  // opcode
               Operator::kPure,        // flags
               "Projection",           // name
-              1, 0, 0, 1, 0, 0,       // counts,
+              1, 0, 1, 1, 0, 0,       // counts,
               kIndex) {}              // parameter
   };
 #define CACHED_PROJECTION(index) \
   ProjectionOperator<index> kProjection##index##Operator;
   CACHED_PROJECTION_LIST(CACHED_PROJECTION)
 #undef CACHED_PROJECTION
 
   template <int kInputCount>
   struct StateValuesOperator final : public Operator {
     StateValuesOperator()
@@ skipping 425 matching lines @@
   switch (index) {
 #define CACHED_PROJECTION(index) \
   case index:                    \
     return &cache_.kProjection##index##Operator;
     CACHED_PROJECTION_LIST(CACHED_PROJECTION)
 #undef CACHED_PROJECTION
     default:
       break;
   }
   // Uncached.
-  return new (zone()) Operator1<size_t>(         // --
-      IrOpcode::kProjection,                     // opcode
-      Operator::kFoldable | Operator::kNoThrow,  // flags
-      "Projection",                              // name
-      1, 0, 0, 1, 0, 0,                          // counts
-      index);                                    // parameter
+  return new (zone()) Operator1<size_t>(  // --
+      IrOpcode::kProjection,              // opcode
+      Operator::kPure,                    // flags
+      "Projection",                       // name
+      1, 0, 1, 1, 0, 0,                   // counts
+      index);                             // parameter
 }
 
 
 const Operator* CommonOperatorBuilder::ResizeMergeOrPhi(const Operator* op,
                                                         int size) {
   if (op->opcode() == IrOpcode::kPhi) {
     return Phi(PhiRepresentationOf(op), size);
   } else if (op->opcode() == IrOpcode::kEffectPhi) {
     return EffectPhi(size);
   } else if (op->opcode() == IrOpcode::kMerge) {
@@ skipping 11 matching lines @@
 CommonOperatorBuilder::CreateFrameStateFunctionInfo(
     FrameStateType type, int parameter_count, int local_count,
     Handle<SharedFunctionInfo> shared_info) {
   return new (zone()->New(sizeof(FrameStateFunctionInfo)))
       FrameStateFunctionInfo(type, parameter_count, local_count, shared_info);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8