Embedded constant pools.

src/ppc/frames-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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/assembler.h"
 #include "src/frames.h"
 #include "src/macro-assembler.h"
 
 #include "src/ppc/assembler-ppc.h"
 #include "src/ppc/assembler-ppc-inl.h"
 #include "src/ppc/macro-assembler-ppc.h"
 
 namespace v8 {
 namespace internal {
 
 
 Register JavaScriptFrame::fp_register() { return v8::internal::fp; }
 Register JavaScriptFrame::context_register() { return cp; }
 Register JavaScriptFrame::constant_pool_pointer_register() {
-  UNREACHABLE();
-  return no_reg;
+  DCHECK(FLAG_enable_embedded_constant_pool);
+  return kConstantPoolRegister;
 }
 
 
 Register StubFailureTrampolineFrame::fp_register() { return v8::internal::fp; }
 Register StubFailureTrampolineFrame::context_register() { return cp; }
 Register StubFailureTrampolineFrame::constant_pool_pointer_register() {
-  UNREACHABLE();
-  return no_reg;
-}
-
-
-Object*& ExitFrame::constant_pool_slot() const {
-  UNREACHABLE();
-  return Memory::Object_at(NULL);
+  DCHECK(FLAG_enable_embedded_constant_pool);
+  return kConstantPoolRegister;
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_PPC