[ignition] Eliminate hole checks where statically possible for loads and stores

src/full-codegen/ppc/full-codegen-ppc.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_PPC
 
 #include "src/full-codegen/full-codegen.h"
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
@@ skipping 1239 matching lines @@
       context()->Plug(r3);
       break;
     }
 
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL:
     case VariableLocation::CONTEXT: {
       DCHECK_EQ(NOT_INSIDE_TYPEOF, typeof_mode);
       Comment cmnt(masm_, var->IsContextSlot() ? "[ Context variable"
                                                : "[ Stack variable");
-      if (NeedsHoleCheckForLoad(proxy)) {
+      if (proxy->needs_hole_check()) {
         // Throw a reference error when using an uninitialized let/const
         // binding in harmony mode.
         Label done;
         GetVar(r3, var);
         __ CompareRoot(r3, Heap::kTheHoleValueRootIndex);
         __ bne(&done);
         __ mov(r3, Operand(var->name()));
         __ push(r3);
         __ CallRuntime(Runtime::kThrowReferenceError);
         __ bind(&done);
@@ skipping 2349 matching lines @@
 
   DCHECK(Assembler::IsCrSet(Assembler::instr_at(cmp_address)));
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC