55 lines · cpp
1// RUN: %clang_cc1 %s -triple=amdgcn-amd-amdhsa -emit-llvm -o - | FileCheck %s2 3template<typename T, unsigned int n> struct my_vector_base;4 5 template<typename T>6 struct my_vector_base<T, 1> {7 typedef T Native_vec_ __attribute__((ext_vector_type(1)));8 9 union {10 Native_vec_ data;11 struct {12 T x;13 };14 };15 };16 17 template<typename T, unsigned int rank>18 struct my_vector_type : public my_vector_base<T, rank> {19 using my_vector_base<T, rank>::data;20 using typename my_vector_base<T, rank>::Native_vec_;21 22 template< typename U>23 my_vector_type(U x) noexcept24 {25 for (auto i = 0u; i != rank; ++i) data[i] = x;26 }27 my_vector_type& operator+=(const my_vector_type& x) noexcept28 {29 data += x.data;30 return *this;31 }32 };33 34template<typename T, unsigned int n>35 inline36 my_vector_type<T, n> operator+(37 const my_vector_type<T, n>& x, const my_vector_type<T, n>& y) noexcept38 {39 return my_vector_type<T, n>{x} += y;40 }41 42using char1 = my_vector_type<char, 1>;43 44void mane() {45 46 char1 f1{1};47 char1 f2{1};48 49// CHECK: [[CALL:%.*]] = call i1650// CHECK: [[TRUNC:%.*]] = trunc i16 [[CALL]] to i851// CHECK: store i8 [[TRUNC]]52 53 char1 f3 = f1 + f2;54}55