diff options
Diffstat (limited to 'lib/VMCore/Type.cpp')
-rw-r--r-- | lib/VMCore/Type.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/VMCore/Type.cpp b/lib/VMCore/Type.cpp index a393556..1fdec94 100644 --- a/lib/VMCore/Type.cpp +++ b/lib/VMCore/Type.cpp @@ -33,6 +33,25 @@ using namespace llvm; AbstractTypeUser::~AbstractTypeUser() {} + +//===----------------------------------------------------------------------===// +// Type PATypeHolder Implementation +//===----------------------------------------------------------------------===// + +// This routine was moved here to resolve a cyclic dependency caused by +// inline heuristics. + +/// get - This implements the forwarding part of the union-find algorithm for +/// abstract types. Before every access to the Type*, we check to see if the +/// type we are pointing to is forwarding to a new type. If so, we drop our +/// reference to the type. +/// +Type* PATypeHolder::get() const { + const Type *NewTy = Ty->getForwardedType(); + if (!NewTy) return const_cast<Type*>(Ty); + return *const_cast<PATypeHolder*>(this) = NewTy; +} + //===----------------------------------------------------------------------===// // Type Class Implementation //===----------------------------------------------------------------------===// |