[Turbofan]: generic lowering can use a constant vector

src/compiler/js-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/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 645 matching lines @@
       1, 1, 1, 1, 1, 0,                                       // counts
       convert_mode);                                          // parameter
 }
 
 const Operator* JSOperatorBuilder::LoadNamed(Handle<Name> name,
                                              const VectorSlotPair& feedback) {
   NamedAccess access(SLOPPY, name, feedback);
   return new (zone()) Operator1<NamedAccess>(           // --
       IrOpcode::kJSLoadNamed, Operator::kNoProperties,  // opcode
       "JSLoadNamed",                                    // name
-      2, 1, 1, 1, 1, 2,                                 // counts
+      1, 1, 1, 1, 1, 2,                                 // counts
       access);                                          // parameter
 }
 
 const Operator* JSOperatorBuilder::LoadProperty(
     VectorSlotPair const& feedback) {
   PropertyAccess access(SLOPPY, feedback);
   return new (zone()) Operator1<PropertyAccess>(           // --
       IrOpcode::kJSLoadProperty, Operator::kNoProperties,  // opcode
       "JSLoadProperty",                                    // name
-      3, 1, 1, 1, 1, 2,                                    // counts
+      2, 1, 1, 1, 1, 2,                                    // counts
       access);                                             // parameter
 }
 
 const Operator* JSOperatorBuilder::GeneratorStore(int register_count) {
   return new (zone()) Operator1<int>(                   // --
       IrOpcode::kJSGeneratorStore, Operator::kNoThrow,  // opcode
       "JSGeneratorStore",                               // name
       3 + register_count, 1, 1, 0, 1, 0,                // counts
       register_count);                                  // parameter
 }
 
 const Operator* JSOperatorBuilder::GeneratorRestoreRegister(int index) {
   return new (zone()) Operator1<int>(                             // --
       IrOpcode::kJSGeneratorRestoreRegister, Operator::kNoThrow,  // opcode
       "JSGeneratorRestoreRegister",                               // name
       1, 1, 1, 1, 1, 0,                                           // counts
       index);                                                     // parameter
 }
 
 const Operator* JSOperatorBuilder::StoreNamed(LanguageMode language_mode,
                                               Handle<Name> name,
                                               VectorSlotPair const& feedback) {
   NamedAccess access(language_mode, name, feedback);
   return new (zone()) Operator1<NamedAccess>(            // --
       IrOpcode::kJSStoreNamed, Operator::kNoProperties,  // opcode
       "JSStoreNamed",                                    // name
-      3, 1, 1, 0, 1, 2,                                  // counts
+      2, 1, 1, 0, 1, 2,                                  // counts
       access);                                           // parameter
 }
 
 
 const Operator* JSOperatorBuilder::StoreProperty(
     LanguageMode language_mode, VectorSlotPair const& feedback) {
   PropertyAccess access(language_mode, feedback);
   return new (zone()) Operator1<PropertyAccess>(            // --
       IrOpcode::kJSStoreProperty, Operator::kNoProperties,  // opcode
       "JSStoreProperty",                                    // name
-      4, 1, 1, 0, 1, 2,                                     // counts
+      3, 1, 1, 0, 1, 2,                                     // counts
       access);                                              // parameter
 }
 
 
 const Operator* JSOperatorBuilder::DeleteProperty(LanguageMode language_mode) {
   return new (zone()) Operator1<LanguageMode>(               // --
       IrOpcode::kJSDeleteProperty, Operator::kNoProperties,  // opcode
       "JSDeleteProperty",                                    // name
       2, 1, 1, 1, 1, 2,                                      // counts
       language_mode);                                        // parameter
 }
 
 
 const Operator* JSOperatorBuilder::LoadGlobal(const Handle<Name>& name,
                                               const VectorSlotPair& feedback,
                                               TypeofMode typeof_mode) {
   LoadGlobalParameters parameters(name, feedback, typeof_mode);
   return new (zone()) Operator1<LoadGlobalParameters>(   // --
       IrOpcode::kJSLoadGlobal, Operator::kNoProperties,  // opcode
       "JSLoadGlobal",                                    // name
-      1, 1, 1, 1, 1, 2,                                  // counts
+      0, 1, 1, 1, 1, 2,                                  // counts
       parameters);                                       // parameter
 }
 
 
 const Operator* JSOperatorBuilder::StoreGlobal(LanguageMode language_mode,
                                                const Handle<Name>& name,
                                                const VectorSlotPair& feedback) {
   StoreGlobalParameters parameters(language_mode, feedback, name);
   return new (zone()) Operator1<StoreGlobalParameters>(   // --
       IrOpcode::kJSStoreGlobal, Operator::kNoProperties,  // opcode
       "JSStoreGlobal",                                    // name
-      2, 1, 1, 0, 1, 2,                                   // counts
+      1, 1, 1, 0, 1, 2,                                   // counts
       parameters);                                        // parameter
 }
 
 
 const Operator* JSOperatorBuilder::LoadContext(size_t depth, size_t index,
                                                bool immutable) {
   ContextAccess access(depth, index, immutable);
   return new (zone()) Operator1<ContextAccess>(  // --
       IrOpcode::kJSLoadContext,                  // opcode
       Operator::kNoWrite | Operator::kNoThrow,   // flags
@@ skipping 142 matching lines @@
   return new (zone()) Operator1<Handle<ScopeInfo>>(               // --
       IrOpcode::kJSCreateScriptContext, Operator::kNoProperties,  // opcode
       "JSCreateScriptContext",                                    // name
       1, 1, 1, 1, 1, 2,                                           // counts
       scpope_info);                                               // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8