[turbofan] Optimized lowering of DYNAMIC_GLOBAL lookup slot loads.

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 75 matching lines @@
 
 ContextAccess const& ContextAccessOf(Operator const* op) {
   DCHECK(op->opcode() == IrOpcode::kJSLoadContext ||
          op->opcode() == IrOpcode::kJSStoreContext);
   return OpParameter<ContextAccess>(op);
 }
 
 
 DynamicGlobalAccess::DynamicGlobalAccess(const Handle<String>& name,
                                          uint32_t check_bitset,
+                                         const VectorSlotPair& feedback,
                                          ContextualMode mode)
-    : name_(name), check_bitset_(check_bitset), mode_(mode) {
+    : name_(name),
+      check_bitset_(check_bitset),
+      feedback_(feedback),
+      mode_(mode) {
   DCHECK(check_bitset == kFullCheckRequired || check_bitset < 0x80000000U);
 }
 
 
 bool operator==(DynamicGlobalAccess const& lhs,
                 DynamicGlobalAccess const& rhs) {
   UNIMPLEMENTED();
   return true;
 }
 
@@ skipping 405 matching lines @@
   ContextAccess access(depth, index, false);
   return new (zone()) Operator1<ContextAccess>(  // --
       IrOpcode::kJSStoreContext,                 // opcode
       Operator::kNoRead | Operator::kNoThrow,    // flags
       "JSStoreContext",                          // name
       2, 1, 1, 0, 1, 0,                          // counts
       access);                                   // parameter
 }
 
 
-const Operator* JSOperatorBuilder::LoadDynamicGlobal(const Handle<String>& name,
-                                                     uint32_t check_bitset,
-                                                     ContextualMode mode) {
-  DynamicGlobalAccess access(name, check_bitset, mode);
+const Operator* JSOperatorBuilder::LoadDynamicGlobal(
+    const Handle<String>& name, uint32_t check_bitset,
+    const VectorSlotPair& feedback, ContextualMode mode) {
+  DynamicGlobalAccess access(name, check_bitset, feedback, mode);
   return new (zone()) Operator1<DynamicGlobalAccess>(           // --
       IrOpcode::kJSLoadDynamicGlobal, Operator::kNoProperties,  // opcode
       "JSLoadDynamicGlobal",                                    // name
       1, 1, 1, 1, 1, 2,                                         // counts
       access);                                                  // parameter
 }
 
 
 const Operator* JSOperatorBuilder::LoadDynamicContext(
     const Handle<String>& name, uint32_t check_bitset, size_t depth,
@@ skipping 42 matching lines @@
   return new (zone()) Operator1<Unique<String>>(                 // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
       2, 1, 1, 1, 1, 2,                                          // counts
       name);                                                     // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8