diff --git a/llvm/include/llvm/ADT/IntrusiveRefCntPtr.h b/llvm/include/llvm/ADT/IntrusiveRefCntPtr.h --- a/llvm/include/llvm/ADT/IntrusiveRefCntPtr.h +++ b/llvm/include/llvm/ADT/IntrusiveRefCntPtr.h @@ -297,6 +297,12 @@ } }; +/// Factory function for creating intrusive ref counted pointers. +template +IntrusiveRefCntPtr makeIntrusiveRefCnt(Args &&...A) { + return IntrusiveRefCntPtr(new T(std::forward(A)...)); +} + } // end namespace llvm #endif // LLVM_ADT_INTRUSIVEREFCNTPTR_H diff --git a/llvm/unittests/ADT/IntrusiveRefCntPtrTest.cpp b/llvm/unittests/ADT/IntrusiveRefCntPtrTest.cpp --- a/llvm/unittests/ADT/IntrusiveRefCntPtrTest.cpp +++ b/llvm/unittests/ADT/IntrusiveRefCntPtrTest.cpp @@ -53,6 +53,22 @@ EXPECT_EQ(0, NumInstances); } +TYPED_TEST(IntrusiveRefCntPtrTest, MakeIntrusiveRefCnt) { + EXPECT_EQ(0, NumInstances); + { + auto S1 = makeIntrusiveRefCnt(); + auto S2 = makeIntrusiveRefCnt(); + EXPECT_EQ(2, NumInstances); + static_assert( + std::is_same>::value, + "Non-const type mismatch"); + static_assert( + std::is_same>::value, + "Const type mismatch"); + } + EXPECT_EQ(0, NumInstances); +} + struct InterceptRefCounted : public RefCountedBase { InterceptRefCounted(bool *Released, bool *Retained) : Released(Released), Retained(Retained) {}