[turbofan] Introduce CheckTaggedSigned and CheckTaggedPointer operators.

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 149 matching lines @@
 
 size_t hash_value(RelocatablePtrConstantInfo const& p) {
   return base::hash_combine(p.value(), p.rmode(), p.type());
 }
 
 std::ostream& operator<<(std::ostream& os,
                          RelocatablePtrConstantInfo const& p) {
   return os << p.value() << "|" << p.rmode() << "|" << p.type();
 }
 
+size_t hash_value(RegionObservability observability) {
+  return static_cast<size_t>(observability);
+}
+
+std::ostream& operator<<(std::ostream& os, RegionObservability observability) {
+  switch (observability) {
+    case RegionObservability::kObservable:
+      return os << "observable";
+    case RegionObservability::kNotObservable:
+      return os << "not-observable";
+  }
+  UNREACHABLE();
+  return os;
+}
+
+RegionObservability RegionObservabilityOf(Operator const* op) {
+  DCHECK_EQ(IrOpcode::kBeginRegion, op->opcode());
+  return OpParameter<RegionObservability>(op);
+}
+
 std::ostream& operator<<(std::ostream& os,
                          const ZoneVector<MachineType>* types) {
   // Print all the MachineTypes, separated by commas.
   bool first = true;
   for (MachineType elem : *types) {
     if (!first) {
       os << ", ";
     }
     first = false;
     os << elem;
   }
   return os;
 }
 
 #define CACHED_OP_LIST(V)                                    \
   V(Dead, Operator::kFoldable, 0, 0, 0, 1, 1, 1)             \
   V(DeoptimizeIf, Operator::kFoldable, 2, 1, 1, 0, 1, 1)     \
   V(DeoptimizeUnless, Operator::kFoldable, 2, 1, 1, 0, 1, 1) \
   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(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)         \
   V(OsrNormalEntry, Operator::kFoldable, 0, 1, 1, 0, 1, 1)   \
   V(OsrLoopEntry, Operator::kFoldable, 0, 1, 1, 0, 1, 1)     \
   V(Checkpoint, Operator::kKontrol, 0, 1, 1, 0, 1, 0)        \
-  V(BeginRegion, Operator::kNoThrow, 0, 1, 0, 0, 1, 0)       \
-  V(FinishRegion, Operator::kNoThrow, 1, 1, 0, 1, 1, 0)
+  V(FinishRegion, Operator::kKontrol, 1, 1, 0, 1, 1, 0)
 
 #define CACHED_RETURN_LIST(V) \
   V(1)                        \
   V(2)                        \
   V(3)
 
 
 #define CACHED_END_LIST(V) \
   V(1)                     \
   V(2)                     \
@@ skipping 158 matching lines @@
         : Operator(                                   // --
               IrOpcode::kEffectPhi, Operator::kPure,  // opcode
               "EffectPhi",                            // name
               0, kEffectInputCount, 1, 0, 1, 0) {}    // counts
   };
 #define CACHED_EFFECT_PHI(input_count) \
   EffectPhiOperator<input_count> kEffectPhi##input_count##Operator;
   CACHED_EFFECT_PHI_LIST(CACHED_EFFECT_PHI)
 #undef CACHED_EFFECT_PHI
 
+  template <RegionObservability kRegionObservability>
+  struct BeginRegionOperator final : public Operator1<RegionObservability> {
+    BeginRegionOperator()
+        : Operator1<RegionObservability>(                  // --
+              IrOpcode::kBeginRegion, Operator::kKontrol,  // opcode
+              "BeginRegion",                               // name
+              0, 1, 0, 0, 1, 0,                            // counts
+              kRegionObservability) {}                     // parameter
+  };
+  BeginRegionOperator<RegionObservability::kObservable>
+      kBeginRegionObservableOperator;
+  BeginRegionOperator<RegionObservability::kNotObservable>
+      kBeginRegionNotObservableOperator;
+
   template <size_t kInputCount>
   struct LoopOperator final : public Operator {
     LoopOperator()
         : Operator(                                 // --
               IrOpcode::kLoop, Operator::kKontrol,  // opcode
               "Loop",                               // name
               0, 0, kInputCount, 0, 0, 1) {}        // counts
   };
 #define CACHED_LOOP(input_count) \
   LoopOperator<input_count> kLoop##input_count##Operator;
@@ skipping 379 matching lines @@
     default:
       break;
   }
   // Uncached.
   return new (zone()) Operator(               // --
       IrOpcode::kEffectPhi, Operator::kPure,  // opcode
       "EffectPhi",                            // name
       0, effect_input_count, 1, 0, 1, 0);     // counts
 }
 
+const Operator* CommonOperatorBuilder::BeginRegion(
+    RegionObservability region_observability) {
+  switch (region_observability) {
+    case RegionObservability::kObservable:
+      return &cache_.kBeginRegionObservableOperator;
+    case RegionObservability::kNotObservable:
+      return &cache_.kBeginRegionNotObservableOperator;
+  }
+  UNREACHABLE();
+  return nullptr;
+}
 
 const Operator* CommonOperatorBuilder::StateValues(int arguments) {
   switch (arguments) {
 #define CACHED_STATE_VALUES(arguments) \
   case arguments:                      \
     return &cache_.kStateValues##arguments##Operator;
     CACHED_STATE_VALUES_LIST(CACHED_STATE_VALUES)
 #undef CACHED_STATE_VALUES
     default:
       break;
@@ skipping 115 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