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			4.0 KiB
		
	
	
	
		
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			112 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
| // RUN: %clang_cc1 -std=gnu++11 -fsyntax-only -verify %s
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| 
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| #include "Inputs/cuda.h"
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| 
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| //------------------------------------------------------------------------------
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| // Test 1: collision between two bases
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| 
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| struct A1_with_host_ctor {
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|   A1_with_host_ctor() {}
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| };
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| 
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| struct B1_with_device_ctor {
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|   __device__ B1_with_device_ctor() {}
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| };
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| 
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| struct C1_with_collision : A1_with_host_ctor, B1_with_device_ctor {
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| };
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| 
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| // expected-note@-3 {{candidate constructor (the implicit default constructor) not viable}}
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| // expected-note@-4 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}}
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| // expected-note@-5 {{candidate constructor (the implicit copy constructor) not viable}}
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| // expected-note@-6 {{candidate constructor (the implicit move constructor) not viable}}
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| 
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| void hostfoo1() {
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|   C1_with_collision c; // expected-error {{no matching constructor}}
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| }
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| 
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| //------------------------------------------------------------------------------
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| // Test 2: collision between two fields
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| 
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| struct C2_with_collision {
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|   A1_with_host_ctor aa;
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|   B1_with_device_ctor bb;
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| };
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| 
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| // expected-note@-5 {{candidate constructor (the implicit default constructor}} not viable
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| // expected-note@-6 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}}
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| // expected-note@-7 {{candidate constructor (the implicit copy constructor}} not viable
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| // expected-note@-8 {{candidate constructor (the implicit move constructor}} not viable
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| 
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| void hostfoo2() {
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|   C2_with_collision c; // expected-error {{no matching constructor}}
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| }
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| 
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| //------------------------------------------------------------------------------
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| // Test 3: collision between a field and a base
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| 
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| struct C3_with_collision : A1_with_host_ctor {
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|   B1_with_device_ctor bb;
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| };
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| 
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| // expected-note@-4 {{candidate constructor (the implicit default constructor}} not viable
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| // expected-note@-5 {{implicit default constructor inferred target collision: call to both __host__ and __device__ members}}
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| // expected-note@-6 {{candidate constructor (the implicit copy constructor}} not viable
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| // expected-note@-7 {{candidate constructor (the implicit move constructor}} not viable
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| 
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| void hostfoo3() {
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|   C3_with_collision c; // expected-error {{no matching constructor}}
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| }
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| 
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| //------------------------------------------------------------------------------
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| // Test 4: collision on resolving a copy ctor
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| 
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| struct A4_with_host_copy_ctor {
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|   A4_with_host_copy_ctor() {}
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|   A4_with_host_copy_ctor(const A4_with_host_copy_ctor&) {}
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| };
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| 
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| struct B4_with_device_copy_ctor {
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|   B4_with_device_copy_ctor() {}
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|   __device__ B4_with_device_copy_ctor(const B4_with_device_copy_ctor&) {}
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| };
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| 
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| struct C4_with_collision : A4_with_host_copy_ctor, B4_with_device_copy_ctor {
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| };
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| 
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| // expected-note@-3 {{candidate constructor (the implicit default constructor}} not viable
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| // expected-note@-4 {{implicit copy constructor inferred target collision}}
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| // expected-note@-5 {{candidate constructor (the implicit copy constructor}} not viable
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| 
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| void hostfoo4() {
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|   C4_with_collision c;
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|   C4_with_collision c2 = c; // expected-error {{no matching constructor}}
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| }
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| 
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| //------------------------------------------------------------------------------
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| // Test 5: collision on resolving a move ctor
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| 
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| struct A5_with_host_move_ctor {
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|   A5_with_host_move_ctor() {}
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|   A5_with_host_move_ctor(A5_with_host_move_ctor&&) {}
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| // expected-note@-1 {{copy constructor is implicitly deleted because 'A5_with_host_move_ctor' has a user-declared move constructor}}
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| };
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| 
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| struct B5_with_device_move_ctor {
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|   B5_with_device_move_ctor() {}
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|   __device__ B5_with_device_move_ctor(B5_with_device_move_ctor&&) {}
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| };
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| 
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| struct C5_with_collision : A5_with_host_move_ctor, B5_with_device_move_ctor {
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| };
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| // expected-note@-2 {{deleted}}
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| 
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| void hostfoo5() {
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|   C5_with_collision c;
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|   // What happens here:
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|   // This tries to find the move ctor. Since the move ctor is deleted due to
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|   // collision, it then looks for a copy ctor. But copy ctors are implicitly
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|   // deleted when move ctors are declared explicitly.
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|   C5_with_collision c2(static_cast<C5_with_collision&&>(c)); // expected-error {{call to implicitly-deleted}}
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| }
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