[turbofan] Remove IfExceptionHint from exception projections.

src/compiler/common-operator.cc

Index: src/compiler/common-operator.cc
diff --git a/src/compiler/common-operator.cc b/src/compiler/common-operator.cc
index 28e5bbcb2be45a766382c5d19fdad7ec52209b2b..571775aacee330fb32b9a24226c377696d918b87 100644
--- a/src/compiler/common-operator.cc
+++ b/src/compiler/common-operator.cc
@@ -75,36 +75,6 @@ DeoptimizeParameters const& DeoptimizeParametersOf(Operator const* const op) {
   return OpParameter<DeoptimizeParameters>(op);
 }
 
-IfExceptionHint ExceptionHintFromCatchPrediction(
-    HandlerTable::CatchPrediction prediction) {
-  switch (prediction) {
-    case HandlerTable::UNCAUGHT:
-      return IfExceptionHint::kLocallyUncaught;
-    case HandlerTable::CAUGHT:
-      return IfExceptionHint::kLocallyCaught;
-    case HandlerTable::PROMISE:
-      return IfExceptionHint::kLocallyCaughtForPromiseReject;
-  }
-  UNREACHABLE();
-  return IfExceptionHint::kLocallyUncaught;
-}
-
-size_t hash_value(IfExceptionHint hint) { return static_cast<size_t>(hint); }
-
-
-std::ostream& operator<<(std::ostream& os, IfExceptionHint hint) {
-  switch (hint) {
-    case IfExceptionHint::kLocallyUncaught:
-      return os << "Uncaught";
-    case IfExceptionHint::kLocallyCaught:
-      return os << "Caught";
-    case IfExceptionHint::kLocallyCaughtForPromiseReject:
-      return os << "CaughtForPromiseReject";
-  }
-  UNREACHABLE();
-  return os;
-}
-
 
 bool operator==(SelectParameters const& lhs, SelectParameters const& rhs) {
   return lhs.representation() == rhs.representation() &&
@@ -240,6 +210,7 @@ std::ostream& operator<<(std::ostream& os,
   V(IfTrue, Operator::kKontrol, 0, 0, 1, 0, 0, 1)          \
   V(IfFalse, Operator::kKontrol, 0, 0, 1, 0, 0, 1)         \
   V(IfSuccess, Operator::kKontrol, 0, 0, 1, 0, 0, 1)       \
+  V(IfException, Operator::kKontrol, 0, 1, 1, 1, 1, 1)     \
   V(IfDefault, Operator::kKontrol, 0, 0, 1, 0, 0, 1)       \
   V(Throw, Operator::kKontrol, 1, 1, 1, 0, 0, 1)           \
   V(Terminate, Operator::kKontrol, 0, 1, 1, 0, 0, 1)       \
@@ -358,20 +329,6 @@ struct CommonOperatorGlobalCache final {
   CACHED_OP_LIST(CACHED)
 #undef CACHED
 
-  template <IfExceptionHint kCaughtLocally>
-  struct IfExceptionOperator final : public Operator1<IfExceptionHint> {
-    IfExceptionOperator()
-        : Operator1<IfExceptionHint>(                      // --
-              IrOpcode::kIfException, Operator::kKontrol,  // opcode
-              "IfException",                               // name
-              0, 1, 1, 1, 1, 1,                            // counts
-              kCaughtLocally) {}                           // parameter
-  };
-  IfExceptionOperator<IfExceptionHint::kLocallyUncaught> kIfExceptionUOperator;
-  IfExceptionOperator<IfExceptionHint::kLocallyCaught> kIfExceptionCOperator;
-  IfExceptionOperator<IfExceptionHint::kLocallyCaughtForPromiseReject>
-      kIfExceptionPOperator;
-
   template <size_t kInputCount>
   struct EndOperator final : public Operator {
     EndOperator()
@@ -638,19 +595,6 @@ const Operator* CommonOperatorBuilder::DeoptimizeUnless(
       reason);                                      // parameter
 }
 
-const Operator* CommonOperatorBuilder::IfException(IfExceptionHint hint) {
-  switch (hint) {
-    case IfExceptionHint::kLocallyUncaught:
-      return &cache_.kIfExceptionUOperator;
-    case IfExceptionHint::kLocallyCaught:
-      return &cache_.kIfExceptionCOperator;
-    case IfExceptionHint::kLocallyCaughtForPromiseReject:
-      return &cache_.kIfExceptionPOperator;
-  }
-  UNREACHABLE();
-  return nullptr;
-}
-
 
 const Operator* CommonOperatorBuilder::Switch(size_t control_output_count) {
   return new (zone()) Operator(               // --