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gcc/libgomp/testsuite/libgomp.c++
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Marek Polacek 0801f41944 c++: Change the default dialect to C++17. 
Since GCC 9, C++17 support is no longer experimental.  It was too late
to change the default C++ dialect to C++17 in GCC 10, but I think now
it's time to pull the trigger (C++14 was made the default in GCC 6.1).
We're still missing two C++17 library features, but that shouldn't stop
us.  See
<https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2017>
and
<https://gcc.gnu.org/projects/cxx-status.html#cxx17>
for the C++17 status.

I won't list all C++17 features here, but just a few heads-up:

- trigraphs were removed (hardly anyone cares, unless your keyboard is
  missing the # key),
- operator++(bool) was removed (so some tests now run in C++14 and down
  only),
- the keyword register was removed (some legacy code might trip on
  this),
- noexcept specification is now part of the type system and C++17 does
  not allow dynamic exception specifications anymore (the empty throw
  specification is still available, but it is deprecated),
- the evaluation order rules are different in C++17,
- static constexpr data members are now implicitly inline (which makes
  them definitions),
- C++17 requires guaranteed copy elision, meaning that a copy/move
  constructor call might be elided completely.  That means that if
  something relied on a constructor being instantiated via e.g. copying
  a function parameter, it might now fail.

I'll post an update for cxx-status.html and add a new caveat to changes.html
once this is in.

gcc/ChangeLog:
	* doc/invoke.texi (C Dialect Options): Adjust -std default for C++.
	* doc/standards.texi (C Language): Correct the default dialect.
	(C++ Language): Update the default for C++ to gnu++17.

gcc/c-family/ChangeLog:
	* c-opts.c (c_common_init_options): Default to gnu++17.

gcc/testsuite/ChangeLog:
	* c-c++-common/torture/vector-subscript-3.c: In C++17, define away
	the keyword register.
	* g++.dg/cpp1z/attributes-enum-1a.C: Only run pre-C++17.
	* g++.dg/cpp1z/fold7a.C: Likewise.
	* g++.dg/cpp1z/nontype3a.C: Likewise.
	* g++.dg/cpp1z/utf8-2a.C: Likewise.
	* g++.dg/parse/error11.C: Update expected diagnostics for C++17.
	* g++.dg/torture/pr34850.C: Add -Wno-attribute-warning.
	* g++.dg/torture/pr49394.C: In C++17, use noexcept(false).
	* g++.dg/torture/pr82154.C: Use -std=c++14.
	* lib/target-supports.exp: Set to C++17.
	* obj-c++.dg/try-catch-9.mm: Use -Wno-register.

libgomp/ChangeLog:
	* testsuite/libgomp.c++/atomic-3.C: Use -std=gnu++14.
2020-06-26 15:29:07 -04:00
..
examples-4
affinity-1.C
atomic-1.C
atomic-2.C
atomic-3.C c++: Change the default dialect to C++17. 2020-06-26 15:29:07 -04:00
atomic-4.C
atomic-5.C
atomic-6.C
atomic-7.C
atomic-8.C
atomic-9.C
atomic-10.C
atomic-11.C
atomic-12.C
atomic-13.C
atomic-14.C
atomic-15.C
c++.exp Introduce libgomp/testsuite/libgomp.c-c++-common 2017-09-14 21:15:40 +00:00
cancel-for-1.C
cancel-for-2.C
cancel-parallel-1.C
cancel-parallel-2.C
cancel-parallel-3.C
cancel-sections-1.C
cancel-taskgroup-3.C
cancel-test.h
collapse-1.C
collapse-2.C
copyin-1.C
copyin-2.C
ctor-1.C
ctor-2.C
ctor-3.C
ctor-4.C
ctor-5.C
ctor-6.C
ctor-7.C
ctor-8.C
ctor-9.C
ctor-10.C
ctor-11.C
ctor-12.C
ctor-13.C
declare_target-1.C
depend-1.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
depend-iterator-1.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
depobj-1.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
doacross-1.C
for-1.C
for-2.C
for-3.C
for-4.C
for-5.C
for-6.C
for-7.C
for-8.C
for-15.C re PR middle-end/86660 (libgomp.c++/for-15.C ICEs with nvptx offloading) 2018-07-26 18:12:58 +02:00
for-16.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-21.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-22.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-23.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-24.C re PR libgomp/88460 ([nvptx] FAIL: libgomp.c++/for-24.C (internal compiler error)) 2018-12-13 13:53:19 +01:00
for-25.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-26.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-27.C re PR middle-end/91301 (ICE in omp_add_variable on random access iterator distribute parallel for private (iterator)) 2019-07-31 09:49:56 +02:00
lastprivate-conditional-1.C omp-low.c (lower_rec_input_clauses): For lastprivate conditional references... 2019-06-05 09:37:40 +02:00
lastprivate-conditional-2.C omp-low.c (lower_rec_input_clauses): For lastprivate conditional references... 2019-06-05 09:37:40 +02:00
linear-1.C
loop-1.C
loop-2.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
loop-3.C
loop-4.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
loop-5.C
loop-6.C
loop-7.C
loop-8.C
loop-9.C
loop-10.C
loop-11.C
loop-12.C
loop-13.C tree.h (OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV): Rename to ... 2019-08-06 09:26:32 +02:00
loop-14.C tree.h (OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV): Rename to ... 2019-08-06 09:26:32 +02:00
loop-15.C tree.h (OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV): Rename to ... 2019-08-06 09:26:32 +02:00
master-1.C
member-1.C
member-2.C
member-3.C
member-4.C
member-5.C
member-6.C
member-7.C
nested-1.C
parallel-1.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
pr24455-1.C
pr24455.C
pr26691.C
pr26943.C
pr27337.C
pr30703.C
pr34513.C
pr35185.C
pr38650.C
pr39573.C
pr43893.C
pr48869.C
pr49043.C
pr56217.C
pr58706.C re PR c++/58706 (ICE with lambda in OpenMP for-loop) 2016-08-08 21:50:29 +02:00
pr63248.C
pr66702-1.C
pr66702-2.C
pr69393.C Remove superfluous -fopenmp from libgomp testcases 2017-09-28 09:32:00 +00:00
pr69555-1.C
pr69555-2.C
pr70376.C
pr81130.C re PR c++/81130 (ICE OpenMP shared clause in gimplify_var_or_parm_decl, at gimplify.c:2584) 2017-06-21 12:58:00 +02:00
pr81314.C re PR c++/81314 (Undefined reference to a function with -fopenmp) 2017-09-14 22:18:17 +02:00
pr82835.C re PR c++/82835 (ICE on valid code with -fopenmp) 2017-11-07 21:51:05 +01:00
pr86291.C re PR c++/86291 (OpenMP incorrect for-loop collapsing with iterators and at least 5 nested loops) 2018-06-26 12:40:50 +02:00
pr86539.C re PR middle-end/86539 (OpenMP wrong-code with taskloop and references) 2018-07-17 10:06:25 +02:00
pr86542.C re PR middle-end/86542 (wrong-code for collapsed taskloop which needs omp_cpyfn) 2018-07-17 12:54:52 +02:00
pr88988.C re PR c++/88988 (ICE: Segmentation fault (in lookup_name_real_1)) 2019-01-31 00:28:53 +01:00
pr93931.C c++: Fix up handling of captured vars in lambdas in OpenMP clauses [PR93931] 2020-03-19 12:22:47 +01:00
reduction-1.C
reduction-2.C
reduction-3.C
reduction-4.C
reduction-5.C
reduction-6.C
reduction-7.C
reduction-8.C
reduction-9.C
reduction-10.C
reduction-11.C
reduction-12.C
reference-1.C
scan-1.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-2.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-3.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-4.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-5.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-6.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-7.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-8.C tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_ clause. 2019-07-03 07:03:58 +02:00
scan-9.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-10.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-11.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-12.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-13.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-14.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-15.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
scan-16.C re PR libgomp/91530 (Several libgomp.*/scan-* tests FAIL without avx_runtime) 2019-08-27 12:45:55 +02:00
sections-1.C
shared-1.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
shared-2.C
simd14.C
simd-1.C
simd-2.C
simd-3.C
simd-4.C
simd-5.C
simd-6.C
simd-7.C
simd-8.C
simd-9.C
single-1.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
single-2.C Fix -Wreturn-type fallout. 2017-11-06 13:41:35 +00:00
single-3.C
target-2-aux.cc
target-2.C
target-6.C
target-7.C
target-8.C
target-9.C tree-core.h (enum omp_clause_code): Adjust OMP_CLAUSE_USE_DEVICE_PTR OpenMP description. 2019-08-07 09:27:10 +02:00
target-10.C
target-11.C
target-12.C
target-13.C
target-14.C
target-15.C
target-16.C
target-17.C
target-18.C
target-19.C
target-20.C
target-21.C
target-22.C gimplify.c (omp_add_variable): Use GOVD_PRIVATE | GOVD_EXPLICIT for VLA helper variables on target data even if... 2019-08-08 08:39:02 +02:00
task-1.C
task-2.C
task-3.C
task-4.C
task-5.C
task-6.C
task-7.C
task-8.C
task-reduction-1.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-2.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-3.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-4.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-5.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-6.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-7.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-8.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-9.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-10.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-11.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-12.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-13.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-14.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-15.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-16.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-17.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-18.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
task-reduction-19.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
taskloop-5.C
taskloop-6.C
taskloop-7.C
taskloop-8.C
taskloop-9.C
taskloop-reduction-1.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
taskloop-reduction-2.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
taskloop-reduction-3.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
taskloop-reduction-4.C builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
tls-init1.C
udr-1.C
udr-2.C
udr-3.C
udr-4.C
udr-5.C
udr-6.C
udr-7.C
udr-8.C
udr-11.C
udr-12.C
udr-13.C
udr-14.C
udr-15.C
udr-16.C
udr-17.C
udr-18.C
udr-19.C [libgomp, testsuite] Move tests to libgomp.c-c++-common 2018-05-02 17:53:43 +00:00
udr-20.C re PR c++/60228 (ICE using lambda in #pragma omp declare reduction) 2019-11-29 10:10:44 +01:00
udr-21.C re PR c++/60228 (ICE using lambda in #pragma omp declare reduction) 2019-11-29 10:10:44 +01:00