[turbofan] Add a debug_name to Parameter 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 91 matching lines @@
             << info.state_combine();
 }
 
 
 size_t ProjectionIndexOf(const Operator* const op) {
   DCHECK_EQ(IrOpcode::kProjection, op->opcode());
   return OpParameter<size_t>(op);
 }
 
 
+int ParameterIndexOf(const Operator* const op) {
+  DCHECK_EQ(IrOpcode::kParameter, op->opcode());
+  return OpParameter<ParameterInfo>(op).index();
+}
+
+
+const ParameterInfo& ParameterInfoOf(const Operator* const op) {
+  DCHECK_EQ(IrOpcode::kParameter, op->opcode());
+  return OpParameter<ParameterInfo>(op);
+}
+
+
+bool operator==(ParameterInfo const& lhs, ParameterInfo const& rhs) {
+  return lhs.index() == rhs.index();
+}
+
+
+bool operator!=(ParameterInfo const& lhs, ParameterInfo const& rhs) {
+  return !(lhs == rhs);
+}
+
+
+size_t hash_value(ParameterInfo const& p) { return p.index(); }
+
+
+std::ostream& operator<<(std::ostream& os, ParameterInfo const& i) {
+  if (i.debug_name()) os << i.debug_name() << '#';
+  os << i.index();
+  return os;
+}
+
+
 #define CACHED_OP_LIST(V)                                  \
   V(Always, Operator::kPure, 0, 0, 0, 1, 0, 0)             \
   V(Dead, Operator::kFoldable, 0, 0, 0, 0, 0, 1)           \
   V(End, Operator::kKontrol, 0, 0, 1, 0, 0, 0)             \
   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, 0, 1, 1, 0, 1)     \
   V(IfDefault, Operator::kKontrol, 0, 0, 1, 0, 0, 1)       \
   V(Throw, Operator::kKontrol, 1, 1, 1, 0, 0, 1)           \
@@ skipping 147 matching lines @@
               "Phi",                            // name
               kInputCount, 0, 1, 1, 0, 0,       // counts
               kType) {}                         // parameter
   };
 #define CACHED_PHI(type, input_count) \
   PhiOperator<type, input_count> kPhi##type##input_count##Operator;
   CACHED_PHI_LIST(CACHED_PHI)
 #undef CACHED_PHI
 
   template <int kIndex>
-  struct ParameterOperator final : public Operator1<int> {
+  struct ParameterOperator final : public Operator1<ParameterInfo> {
     ParameterOperator()
-        : Operator1<int>(                             // --
+        : Operator1<ParameterInfo>(                   // --
               IrOpcode::kParameter, Operator::kPure,  // opcode
               "Parameter",                            // name
               1, 0, 0, 1, 0, 0,                       // counts,
-              kIndex) {}                              // parameter
+              ParameterInfo(kIndex, nullptr)) {}      // parameter and name
   };
 #define CACHED_PARAMETER(index) \
   ParameterOperator<index> kParameter##index##Operator;
   CACHED_PARAMETER_LIST(CACHED_PARAMETER)
 #undef CACHED_PARAMETER
 
   template <size_t kIndex>
   struct ProjectionOperator final : public Operator1<size_t> {
     ProjectionOperator()
         : Operator1<size_t>(          // --
@@ skipping 113 matching lines @@
       break;
   }
   // Uncached.
   return new (zone()) Operator(              // --
       IrOpcode::kMerge, Operator::kKontrol,  // opcode
       "Merge",                               // name
       0, 0, control_input_count, 0, 0, 1);   // counts
 }
 
 
-const Operator* CommonOperatorBuilder::Parameter(int index) {
-  switch (index) {
+const Operator* CommonOperatorBuilder::Parameter(int index,
+                                                 const char* debug_name) {
+  if (!debug_name) {
+    switch (index) {
 #define CACHED_PARAMETER(index) \
   case index:                   \
     return &cache_.kParameter##index##Operator;
-    CACHED_PARAMETER_LIST(CACHED_PARAMETER)
+      CACHED_PARAMETER_LIST(CACHED_PARAMETER)
 #undef CACHED_PARAMETER
-    default:
-      break;
+      default:
+        break;
+    }
   }
   // Uncached.
-  return new (zone()) Operator1<int>(         // --
-      IrOpcode::kParameter, Operator::kPure,  // opcode
-      "Parameter",                            // name
-      1, 0, 0, 1, 0, 0,                       // counts
-      index);                                 // parameter
+  return new (zone()) Operator1<ParameterInfo>(  // --
+      IrOpcode::kParameter, Operator::kPure,     // opcode
+      "Parameter",                               // name
+      1, 0, 0, 1, 0, 0,                          // counts
+      ParameterInfo(index, debug_name));         // parameter info
 }
 
 
 const Operator* CommonOperatorBuilder::OsrValue(int index) {
   return new (zone()) Operator1<int>(                // --
       IrOpcode::kOsrValue, Operator::kNoProperties,  // opcode
       "OsrValue",                                    // name
       0, 0, 1, 1, 0, 0,                              // counts
       index);                                        // parameter
 }
@@ skipping 233 matching lines @@
   } else {
     UNREACHABLE();
     return nullptr;
   }
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8