[ic] LoadGlobalIC caches PropertyCells in the feedback vector.

src/mips/code-stubs-mips.cc

 // Copyright 2012 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_MIPS
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 5080 matching lines @@
   }
   __ jmp(&done_allocate);
 
   // Fall back to %NewStrictArguments.
   __ bind(&too_big_for_new_space);
   __ Push(a1);
   __ TailCallRuntime(Runtime::kNewStrictArguments);
 }
 
 
-void LoadGlobalViaContextStub::Generate(MacroAssembler* masm) {
-  Register context_reg = cp;
-  Register slot_reg = a2;
-  Register result_reg = v0;
-  Label slow_case;
-
-  // Go up context chain to the script context.
-  for (int i = 0; i < depth(); ++i) {
-    __ lw(result_reg, ContextMemOperand(context_reg, Context::PREVIOUS_INDEX));
-    context_reg = result_reg;
-  }
-
-  // Load the PropertyCell value at the specified slot.
-  __ Lsa(at, context_reg, slot_reg, kPointerSizeLog2);
-  __ lw(result_reg, ContextMemOperand(at, 0));
-  __ lw(result_reg, FieldMemOperand(result_reg, PropertyCell::kValueOffset));
-
-  // Check that value is not the_hole.
-  __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
-  __ Branch(&slow_case, eq, result_reg, Operand(at));
-  __ Ret();
-
-  // Fallback to the runtime.
-  __ bind(&slow_case);
-  __ SmiTag(slot_reg);
-  __ Push(slot_reg);
-  __ TailCallRuntime(Runtime::kLoadGlobalViaContext);
-}
-
-
 void StoreGlobalViaContextStub::Generate(MacroAssembler* masm) {
   Register context_reg = cp;
   Register slot_reg = a2;
   Register value_reg = a0;
   Register cell_reg = t0;
   Register cell_value_reg = t1;
   Register cell_details_reg = t2;
   Label fast_heapobject_case, fast_smi_case, slow_case;
 
   if (FLAG_debug_code) {
@@ skipping 405 matching lines @@
                            kStackUnwindSpace, kInvalidStackOffset,
                            return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS