[turbofan] Cache common Loop, Merge and 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 94 matching lines @@
 
 #define CACHED_OP_LIST(V)                     \
   V(Dead, Operator::kFoldable, 0, 0, 0, 1)    \
   V(End, Operator::kFoldable, 0, 0, 1, 0)     \
   V(IfTrue, Operator::kFoldable, 0, 0, 1, 1)  \
   V(IfFalse, Operator::kFoldable, 0, 0, 1, 1) \
   V(Throw, Operator::kFoldable, 1, 1, 1, 1)   \
   V(Return, Operator::kNoProperties, 1, 1, 1, 1)
 
 
+#define CACHED_LOOP_LIST(V) \
+  V(1)                      \
+  V(2)
+
+
+#define CACHED_MERGE_LIST(V) \
+  V(1)                       \
+  V(2)                       \
+  V(3)                       \
+  V(4)                       \
+  V(5)                       \
+  V(6)                       \
+  V(7)                       \
+  V(8)
+
+
+#define CACHED_PARAMETER_LIST(V) \
+  V(0)                           \
+  V(1)                           \
+  V(2)                           \
+  V(3)                           \
+  V(4)                           \
+  V(5)                           \
+  V(6)
+
+
 struct CommonOperatorGlobalCache FINAL {
 #define CACHED(Name, properties, value_input_count, effect_input_count,     \
                control_input_count, control_output_count)                   \
   struct Name##Operator FINAL : public Operator {                           \
     Name##Operator()                                                        \
         : Operator(IrOpcode::k##Name, properties, #Name, value_input_count, \
                    effect_input_count, control_input_count, 0, 0,           \
                    control_output_count) {}                                 \
   };                                                                        \
   Name##Operator k##Name##Operator;
   CACHED_OP_LIST(CACHED)
 #undef CACHED
 
   template <BranchHint kBranchHint>
   struct BranchOperator FINAL : public Operator1<BranchHint> {
     BranchOperator()
         : Operator1<BranchHint>(                       // --
               IrOpcode::kBranch, Operator::kFoldable,  // opcode
               "Branch",                                // name
               1, 0, 1, 0, 0, 2,                        // counts
               kBranchHint) {}                          // parameter
   };
   BranchOperator<BranchHint::kNone> kBranchNoneOperator;
   BranchOperator<BranchHint::kTrue> kBranchTrueOperator;
   BranchOperator<BranchHint::kFalse> kBranchFalseOperator;
+
+  template <size_t kInputCount>
+  struct LoopOperator FINAL : public Operator {
+    LoopOperator()
+        : Operator(                                  // --
+              IrOpcode::kLoop, Operator::kFoldable,  // opcode
+              "Loop",                                // name
+              0, 0, kInputCount, 0, 0, 1) {}         // counts
+  };
+#define CACHED_LOOP(input_count) \
+  LoopOperator<input_count> kLoop##input_count##Operator;
+  CACHED_LOOP_LIST(CACHED_LOOP)
+#undef CACHED_LOOP
+
+  template <size_t kInputCount>
+  struct MergeOperator FINAL : public Operator {
+    MergeOperator()
+        : Operator(                                   // --
+              IrOpcode::kMerge, Operator::kFoldable,  // opcode
+              "Merge",                                // name
+              0, 0, kInputCount, 0, 0, 1) {}          // counts
+  };
+#define CACHED_MERGE(input_count) \
+  MergeOperator<input_count> kMerge##input_count##Operator;
+  CACHED_MERGE_LIST(CACHED_MERGE)
+#undef CACHED_MERGE
+
+  template <int kIndex>
+  struct ParameterOperator FINAL : public Operator1<int> {
+    ParameterOperator()
+        : Operator1<int>(                             // --
+              IrOpcode::kParameter, Operator::kPure,  // opcode
+              "Parameter",                            // name
+              1, 0, 0, 1, 0, 0,                       // counts,
+              kIndex) {}                              // parameter
+  };
+#define CACHED_PARAMETER(index) \
+  ParameterOperator<index> kParameter##index##Operator;
+  CACHED_PARAMETER_LIST(CACHED_PARAMETER)
+#undef CACHED_PARAMETER
 };
 
 
 static base::LazyInstance<CommonOperatorGlobalCache>::type kCache =
     LAZY_INSTANCE_INITIALIZER;
 
 
 CommonOperatorBuilder::CommonOperatorBuilder(Zone* zone)
     : cache_(kCache.Get()), zone_(zone) {}
 
@@ skipping 24 matching lines @@
 const Operator* CommonOperatorBuilder::Start(int num_formal_parameters) {
   // Outputs are formal parameters, plus context, receiver, and JSFunction.
   const int value_output_count = num_formal_parameters + 3;
   return new (zone()) Operator(               // --
       IrOpcode::kStart, Operator::kFoldable,  // opcode
       "Start",                                // name
       0, 0, 0, value_output_count, 1, 1);     // counts
 }
 
 
-const Operator* CommonOperatorBuilder::Merge(int controls) {
+const Operator* CommonOperatorBuilder::Loop(int control_input_count) {
+  switch (control_input_count) {
+#define CACHED_LOOP(input_count) \
+  case input_count:              \
+    return &cache_.kLoop##input_count##Operator;
+    CACHED_LOOP_LIST(CACHED_LOOP)
+#undef CACHED_LOOP
+    default:
+      break;
+  }
+  // Uncached.
+  return new (zone()) Operator(              // --
+      IrOpcode::kLoop, Operator::kFoldable,  // opcode
+      "Loop",                                // name
+      0, 0, control_input_count, 0, 0, 1);   // counts
+}
+
+
+const Operator* CommonOperatorBuilder::Merge(int control_input_count) {
+  switch (control_input_count) {
+#define CACHED_MERGE(input_count) \
+  case input_count:               \
+    return &cache_.kMerge##input_count##Operator;
+    CACHED_MERGE_LIST(CACHED_MERGE)
+#undef CACHED_MERGE
+    default:
+      break;
+  }
+  // Uncached.
   return new (zone()) Operator(               // --
       IrOpcode::kMerge, Operator::kFoldable,  // opcode
       "Merge",                                // name
-      0, 0, controls, 0, 0, 1);               // counts
+      0, 0, control_input_count, 0, 0, 1);    // counts
 }
 
 
-const Operator* CommonOperatorBuilder::Loop(int controls) {
-  return new (zone()) Operator(              // --
-      IrOpcode::kLoop, Operator::kFoldable,  // opcode
-      "Loop",                                // name
-      0, 0, controls, 0, 0, 1);              // counts
-}
-
-
 const Operator* CommonOperatorBuilder::Terminate(int effects) {
   return new (zone()) Operator(               // --
       IrOpcode::kTerminate, Operator::kPure,  // opcode
       "Terminate",                            // name
       0, effects, 1, 0, 0, 1);                // counts
 }
 
 
 const Operator* CommonOperatorBuilder::Parameter(int index) {
+  switch (index) {
+#define CACHED_PARAMETER(index) \
+  case index:                   \
+    return &cache_.kParameter##index##Operator;
+    CACHED_PARAMETER_LIST(CACHED_PARAMETER)
+#undef CACHED_PARAMETER
+    default:
+      break;
+  }
+  // Uncached.
   return new (zone()) Operator1<int>(         // --
       IrOpcode::kParameter, Operator::kPure,  // opcode
       "Parameter",                            // name
       1, 0, 0, 1, 0, 0,                       // counts
       index);                                 // parameter
 }
 
 
 const Operator* CommonOperatorBuilder::Int32Constant(int32_t value) {
   return new (zone()) Operator1<int32_t>(         // --
@@ skipping 153 matching lines @@
   return new (zone()) Operator1<size_t>(       // --
       IrOpcode::kProjection, Operator::kPure,  // opcode
       "Projection",                            // name
       1, 0, 0, 1, 0, 0,                        // counts
       index);                                  // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8