[runtime] First step to sanitize regexp literal creation.

src/code-stubs.h

 // 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.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 52 matching lines @@
   V(AllocateInNewSpace)                     \
   V(ArrayNArgumentsConstructor)             \
   V(ArrayNoArgumentConstructor)             \
   V(ArraySingleArgumentConstructor)         \
   V(BinaryOpIC)                             \
   V(BinaryOpWithAllocationSite)             \
   V(CompareNilIC)                           \
   V(CreateAllocationSite)                   \
   V(CreateWeakCell)                         \
   V(ElementsTransitionAndStore)             \
+  V(FastCloneRegExp)                        \
   V(FastCloneShallowArray)                  \
   V(FastCloneShallowObject)                 \
   V(FastNewClosure)                         \
   V(FastNewContext)                         \
   V(GrowArrayElements)                      \
   V(InternalArrayNArgumentsConstructor)     \
   V(InternalArrayNoArgumentConstructor)     \
   V(InternalArraySingleArgumentConstructor) \
   V(KeyedLoadGeneric)                       \
   V(LoadGlobalViaContext)                   \
@@ skipping 703 matching lines @@
   static const int kFunction = 0;
 
  private:
   class SlotsBits : public BitField<int, 0, 8> {};
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(FastNewContext);
   DEFINE_HYDROGEN_CODE_STUB(FastNewContext, HydrogenCodeStub);
 };
 
 
+class FastCloneRegExpStub final : public HydrogenCodeStub {
+ public:
+  explicit FastCloneRegExpStub(Isolate* isolate) : HydrogenCodeStub(isolate) {}
+
+ private:
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(FastCloneRegExp);
+  DEFINE_HYDROGEN_CODE_STUB(FastCloneRegExp, HydrogenCodeStub);
+};
+
+
 class FastCloneShallowArrayStub : public HydrogenCodeStub {
  public:
   FastCloneShallowArrayStub(Isolate* isolate,
                             AllocationSiteMode allocation_site_mode)
       : HydrogenCodeStub(isolate) {
     set_sub_minor_key(AllocationSiteModeBits::encode(allocation_site_mode));
   }
 
   AllocationSiteMode allocation_site_mode() const {
     return AllocationSiteModeBits::decode(sub_minor_key());
@@ skipping 2244 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_