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Inline the fastpath of PATypeHolder::get(). This is a small speedup in

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instcombine among other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-08-15 15:16:50 +00:00
parent 21066541ae
commit 3b12ab4519
2 changed files with 11 additions and 15 deletions
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11
include/llvm/Type.h
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@ -392,6 +392,17 @@ inline void PATypeHandle::removeUser() {
// Define inline methods for PATypeHolder.
/// 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.
///
inline Type* PATypeHolder::get() const {
const Type *NewTy = Ty->getForwardedType();
if (!NewTy) return const_cast<Type*>(Ty);
return *const_cast<PATypeHolder*>(this) = NewTy;
}
inline void PATypeHolder::addRef() {
assert(Ty && "Type Holder has a null type!");
if (Ty->isAbstract())

15
lib/VMCore/Type.cpp
View File

@ -34,21 +34,6 @@ using namespace llvm;
AbstractTypeUser::~AbstractTypeUser() {}
//===----------------------------------------------------------------------===//
// Type PATypeHolder Implementation
//===----------------------------------------------------------------------===//
/// 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
//===----------------------------------------------------------------------===//