This test utility does: "T t = T();" to guarantee value-init, and then some std::atomic tests have dg-error directives to handle the errors that happen because atomics are non-copyable. In C++17 there is no error, because of guaranteed elision, so the dg-errors FAIL.
For C++11 we can us "T t{};" instead, which means there are no errors for non-copyable types, and we don't get different errors for C++11 and C++17. * testsuite/util/testsuite_common_types.h (bitwise_assignment_operators): Use direct-initialization for C++11 and later, to avoid CopyConstructible requirement. * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line numbers. * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc: Adjust expected errors and line numbers. Tested powerpc64le-linux, committed to trunk.
commit 588104840e79d4fdad1eba26ac83a511d9b6ab27 Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Oct 12 13:17:05 2016 +0100 Make test helper work with non-copyable types * testsuite/util/testsuite_common_types.h (bitwise_assignment_operators): Use direct-initialization for C++11 and later, to avoid CopyConstructible requirement. * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line numbers. * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc: Adjust expected errors and line numbers. diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc index eb0111d..4136944 100644 --- a/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc +++ b/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc @@ -27,5 +27,5 @@ int main() return 0; } -// { dg-error "deleted" "" { target *-*-* } 615 } +// { dg-error "deleted" "" { target *-*-* } 620 } // { dg-prune-output "include" } diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc index 546ac50..ffc2dc2 100644 --- a/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc +++ b/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc @@ -27,5 +27,5 @@ int main() return 0; } -// { dg-error "deleted" "" { target *-*-* } 654 } +// { dg-error "deleted" "" { target *-*-* } 659 } // { dg-prune-output "include" } diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/assign_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/assign_neg.cc index c5b6103..20f263c 100644 --- a/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/assign_neg.cc +++ b/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/assign_neg.cc @@ -28,5 +28,5 @@ int main() return 0; } -// { dg-error "deleted" "" { target *-*-* } 615 } +// { dg-error "deleted" "" { target *-*-* } 620 } // { dg-prune-output "include" } diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/copy_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/copy_neg.cc index 49e1eb1..bf7cda8 100644 --- a/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/copy_neg.cc +++ b/libstdc++-v3/testsuite/29_atomics/atomic_integral/cons/copy_neg.cc @@ -28,5 +28,5 @@ int main() return 0; } -// { dg-error "deleted" "" { target *-*-* } 654 } +// { dg-error "deleted" "" { target *-*-* } 659 } // { dg-prune-output "include" } diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc index db0c3c1..731513b 100644 --- a/libstdc++-v3/testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc +++ b/libstdc++-v3/testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc @@ -26,10 +26,8 @@ int main() return 0; } -// { dg-error "deleted" "" { target *-*-* } 469 } -// { dg-error "deleted" "" { target *-*-* } 470 } -// { dg-error "operator" "" { target *-*-* } 471 } -// { dg-error "operator" "" { target *-*-* } 472 } -// { dg-error "operator" "" { target *-*-* } 473 } +// { dg-error "operator" "" { target *-*-* } 476 } +// { dg-error "operator" "" { target *-*-* } 477 } +// { dg-error "operator" "" { target *-*-* } 478 } // { dg-prune-output "declared here" } diff --git a/libstdc++-v3/testsuite/util/testsuite_common_types.h b/libstdc++-v3/testsuite/util/testsuite_common_types.h index 2f3732e..3233676 100644 --- a/libstdc++-v3/testsuite/util/testsuite_common_types.h +++ b/libstdc++-v3/testsuite/util/testsuite_common_types.h @@ -466,8 +466,13 @@ namespace __gnu_test void bitwise_assignment_operators() { +#if __cplusplus >= 201103L + _Tp a{}; + _Tp b{}; +#else _Tp a = _Tp(); _Tp b = _Tp(); +#endif a |= b; // set a &= ~b; // clear a ^= b;