[debug] use catch prediction flag for promise rejections.

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 57 matching lines @@
 
 std::ostream& operator<<(std::ostream& os, DeoptimizeParameters p) {
   return os << p.kind() << ":" << p.reason();
 }
 
 DeoptimizeParameters const& DeoptimizeParametersOf(Operator const* const op) {
   DCHECK_EQ(IrOpcode::kDeoptimize, op->opcode());
   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::kLocallyUncaught:
-      return os << "Uncaught";
+    case IfExceptionHint::kLocallyCaughtForPromiseReject:
+      return os << "CaughtForPromiseReject";
   }
   UNREACHABLE();
   return os;
 }
 
 
 bool operator==(SelectParameters const& lhs, SelectParameters const& rhs) {
   return lhs.representation() == rhs.representation() &&
          lhs.hint() == rhs.hint();
 }
@@ skipping 241 matching lines @@
 
   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::kLocallyUncaught> kIfExceptionUOperator;
+  IfExceptionOperator<IfExceptionHint::kLocallyCaughtForPromiseReject>
+      kIfExceptionPOperator;
 
   template <size_t kInputCount>
   struct EndOperator final : public Operator {
     EndOperator()
         : Operator(                                // --
               IrOpcode::kEnd, Operator::kKontrol,  // opcode
               "End",                               // name
               0, 0, kInputCount, 0, 0, 0) {}       // counts
   };
 #define CACHED_END(input_count) \
@@ skipping 235 matching lines @@
   return new (zone()) Operator1<DeoptimizeReason>(  // --
       IrOpcode::kDeoptimizeUnless,                  // opcode
       Operator::kFoldable | Operator::kNoThrow,     // properties
       "DeoptimizeUnless",                           // name
       2, 1, 1, 0, 1, 1,                             // counts
       reason);                                      // parameter
 }
 
 const Operator* CommonOperatorBuilder::IfException(IfExceptionHint hint) {
   switch (hint) {
+    case IfExceptionHint::kLocallyUncaught:
+      return &cache_.kIfExceptionUOperator;
     case IfExceptionHint::kLocallyCaught:
       return &cache_.kIfExceptionCOperator;
-    case IfExceptionHint::kLocallyUncaught:
-      return &cache_.kIfExceptionUOperator;
+    case IfExceptionHint::kLocallyCaughtForPromiseReject:
+      return &cache_.kIfExceptionPOperator;
   }
   UNREACHABLE();
   return nullptr;
 }
 
 
 const Operator* CommonOperatorBuilder::Switch(size_t control_output_count) {
   return new (zone()) Operator(               // --
       IrOpcode::kSwitch, Operator::kKontrol,  // opcode
       "Switch",                               // name
@@ skipping 353 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