[ic] LoadGlobalIC caches PropertyCells in the feedback vector.

src/s390/code-stubs-s390.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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 5010 matching lines @@
     __ Pop(r2, r4);
   }
   __ b(&done_allocate);
 
   // Fall back to %NewStrictArguments.
   __ bind(&too_big_for_new_space);
   __ push(r3);
   __ TailCallRuntime(Runtime::kNewStrictArguments);
 }
 
-void LoadGlobalViaContextStub::Generate(MacroAssembler* masm) {
-  Register context = cp;
-  Register result = r2;
-  Register slot = r4;
-
-  // Go up the context chain to the script context.
-  for (int i = 0; i < depth(); ++i) {
-    __ LoadP(result, ContextMemOperand(context, Context::PREVIOUS_INDEX));
-    context = result;
-  }
-
-  // Load the PropertyCell value at the specified slot.
-  __ ShiftLeftP(r0, slot, Operand(kPointerSizeLog2));
-  __ AddP(result, context, r0);
-  __ LoadP(result, ContextMemOperand(result));
-  __ LoadP(result, FieldMemOperand(result, PropertyCell::kValueOffset));
-
-  // If the result is not the_hole, return. Otherwise, handle in the runtime.
-  __ CompareRoot(result, Heap::kTheHoleValueRootIndex);
-  Label runtime;
-  __ beq(&runtime);
-  __ Ret();
-  __ bind(&runtime);
-
-  // Fallback to runtime.
-  __ SmiTag(slot);
-  __ Push(slot);
-  __ TailCallRuntime(Runtime::kLoadGlobalViaContext);
-}
-
 void StoreGlobalViaContextStub::Generate(MacroAssembler* masm) {
   Register value = r2;
   Register slot = r4;
 
   Register cell = r3;
   Register cell_details = r5;
   Register cell_value = r6;
   Register cell_value_map = r7;
   Register scratch = r8;
 
@@ skipping 460 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390