1 // RUN: %clang_cc1 -std=gnu++11 -fsyntax-only -verify %s 2 3 #include "Inputs/cuda.h" 4 5 //------------------------------------------------------------------------------ 6 // Test 1: collision between two bases 7 8 struct A1_with_host_ctor { A1_with_host_ctorA1_with_host_ctor9 A1_with_host_ctor() {} 10 }; 11 12 struct B1_with_device_ctor { B1_with_device_ctorB1_with_device_ctor13 __device__ B1_with_device_ctor() {} 14 }; 15 16 struct C1_with_collision : A1_with_host_ctor, B1_with_device_ctor { 17 }; 18 19 // expected-note@-3 {{candidate constructor (the implicit default constructor) not viable}} 20 // expected-note@-4 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}} 21 // expected-note@-5 {{candidate constructor (the implicit copy constructor) not viable}} 22 // expected-note@-6 {{candidate constructor (the implicit move constructor) not viable}} 23 hostfoo1()24void hostfoo1() { 25 C1_with_collision c; // expected-error {{no matching constructor}} 26 } 27 28 //------------------------------------------------------------------------------ 29 // Test 2: collision between two fields 30 31 struct C2_with_collision { 32 A1_with_host_ctor aa; 33 B1_with_device_ctor bb; 34 }; 35 36 // expected-note@-5 {{candidate constructor (the implicit default constructor}} not viable 37 // expected-note@-6 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}} 38 // expected-note@-7 {{candidate constructor (the implicit copy constructor}} not viable 39 // expected-note@-8 {{candidate constructor (the implicit move constructor}} not viable 40 hostfoo2()41void hostfoo2() { 42 C2_with_collision c; // expected-error {{no matching constructor}} 43 } 44 45 //------------------------------------------------------------------------------ 46 // Test 3: collision between a field and a base 47 48 struct C3_with_collision : A1_with_host_ctor { 49 B1_with_device_ctor bb; 50 }; 51 52 // expected-note@-4 {{candidate constructor (the implicit default constructor}} not viable 53 // expected-note@-5 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}} 54 // expected-note@-6 {{candidate constructor (the implicit copy constructor}} not viable 55 // expected-note@-7 {{candidate constructor (the implicit move constructor}} not viable 56 hostfoo3()57void hostfoo3() { 58 C3_with_collision c; // expected-error {{no matching constructor}} 59 } 60 61 //------------------------------------------------------------------------------ 62 // Test 4: collision on resolving a copy ctor 63 64 struct A4_with_host_copy_ctor { A4_with_host_copy_ctorA4_with_host_copy_ctor65 A4_with_host_copy_ctor() {} A4_with_host_copy_ctorA4_with_host_copy_ctor66 A4_with_host_copy_ctor(const A4_with_host_copy_ctor&) {} 67 }; 68 69 struct B4_with_device_copy_ctor { B4_with_device_copy_ctorB4_with_device_copy_ctor70 B4_with_device_copy_ctor() {} B4_with_device_copy_ctorB4_with_device_copy_ctor71 __device__ B4_with_device_copy_ctor(const B4_with_device_copy_ctor&) {} 72 }; 73 74 struct C4_with_collision : A4_with_host_copy_ctor, B4_with_device_copy_ctor { 75 }; 76 77 // expected-note@-3 {{candidate constructor (the implicit default constructor}} not viable 78 // expected-note@-4 {{implicit copy constructor inferred target collision}} 79 // expected-note@-5 {{candidate constructor (the implicit copy constructor}} not viable 80 hostfoo4()81void hostfoo4() { 82 C4_with_collision c; 83 C4_with_collision c2 = c; // expected-error {{no matching constructor}} 84 } 85 86 //------------------------------------------------------------------------------ 87 // Test 5: collision on resolving a move ctor 88 89 struct A5_with_host_move_ctor { A5_with_host_move_ctorA5_with_host_move_ctor90 A5_with_host_move_ctor() {} A5_with_host_move_ctorA5_with_host_move_ctor91 A5_with_host_move_ctor(A5_with_host_move_ctor&&) {} 92 // expected-note@-1 {{copy constructor is implicitly deleted because 'A5_with_host_move_ctor' has a user-declared move constructor}} 93 }; 94 95 struct B5_with_device_move_ctor { B5_with_device_move_ctorB5_with_device_move_ctor96 B5_with_device_move_ctor() {} B5_with_device_move_ctorB5_with_device_move_ctor97 __device__ B5_with_device_move_ctor(B5_with_device_move_ctor&&) {} 98 }; 99 100 struct C5_with_collision : A5_with_host_move_ctor, B5_with_device_move_ctor { 101 }; 102 // expected-note@-2 {{deleted}} 103 hostfoo5()104void hostfoo5() { 105 C5_with_collision c; 106 // What happens here: 107 // This tries to find the move ctor. Since the move ctor is deleted due to 108 // collision, it then looks for a copy ctor. But copy ctors are implicitly 109 // deleted when move ctors are declared explicitly. 110 C5_with_collision c2(static_cast<C5_with_collision&&>(c)); // expected-error {{call to implicitly-deleted}} 111 } 112