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gcc/libgomp/testsuite/libgomp.c-c++-common
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Tom de Vries 4ac7b66958 [libgomp, nvptx] Add __sync_compare_and_swap_16 
As reported here
( https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553070.html  ),
when running test-case libgomp.c-c++-common/reduction-16.c for powerpc host
with nvptx accelerator, we run into:
...
unresolved symbol __sync_val_compare_and_swap_16
...

I can reproduce the problem on x86_64 with a trigger patch that:
- initializes ix86_isa_flags2 to TARGET_ISA2_CX16
- enables define_expand "atomic_load<mode>" in gcc/config/i386/sync.md
  for TImode

The problem is that omp-expand.c generates atomic builtin calls based on
checks whether those are supported on the host, which forces the target to
support these, even though those checks fail for the accelerator target.

Fix this by:
- adding a __sync_val_compare_and_swap_16 in libgomp for nvptx,
  which falls back onto libatomic's __atomic_compare_and_swap_16
- adding -foffload=-latomic in the test-case

Tested libgomp on x86_64-linux with nvptx accelerator.

Tested libgomp with trigger patch on x86_64-linux with nvptx accelerator.

libgomp/ChangeLog:

	* config/nvptx/atomic.c: New file.  Add
	__sync_val_compare_and_swap_16.
	* testsuite/libgomp.c-c++-common/reduction-16.c: Add -latomic for
	target offload_target_nvptx.
2020-09-14 08:28:56 +02:00
..
alloc-1.c openmp: Add basic library allocator support. 2020-05-19 10:11:01 +02:00
alloc-2.c libgomp: Add Fortran routine support for allocators 2020-07-15 08:33:20 +02:00
alloc-3.c openmp: Add basic library allocator support. 2020-05-19 10:11:01 +02:00
alloc-4.c openmp: omp_alloc(0, ...) should return NULL. 2020-05-30 14:02:56 +02:00
atomic-18.c
cancel-parallel-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
cancel-taskgroup-1.c
cancel-taskgroup-2.c
cancel-taskgroup-3.c re PR libgomp/87995 (libgomp.c/../libgomp.c-c++-common/cancel-taskgroup-3.c fails consistently after r265930) 2018-12-08 09:58:24 +01:00
cancel-taskgroup-4.c omp-low.c (check_omp_nesting_restrictions): Allow cancel or cancellation point with taskgroup clause inside of taskloop. 2018-12-02 13:48:42 +01:00
critical-hint-1.c critical-hint-*.{c,f90}: Move from gcc/testsuite to libgomp/testsuite 2020-07-22 12:14:22 +02:00
critical-hint-2.c critical-hint-*.{c,f90}: Move from gcc/testsuite to libgomp/testsuite 2020-07-22 12:14:22 +02:00
depend-iterator-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
depend-iterator-2.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
depend-mutexinout-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
depend-mutexinout-2.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
display-affinity-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-1.c
for-1.h
for-2.c
for-2.h openmp: Handle reduction clauses on host teams construct [PR96459] 2020-08-05 10:40:10 +02:00
for-3.c
for-4.c
for-5.c
for-6.c
for-7.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-8.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-9.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-10.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-11.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-12.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-13.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-14.c openmp: Handle reduction clauses on host teams construct [PR96459] 2020-08-05 10:40:10 +02:00
for-15.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
for-16.c omp-builtins.def (BUILT_IN_GOMP_LOOP_NONMONOTONIC_RUNTIME_START, [...]): Fix up function types - remove one argument. 2018-12-12 23:47:55 +01:00
function-not-offloaded-aux.c [offloading] Error on missing symbols 2018-12-14 13:48:56 +00:00
function-not-offloaded.c [gcn] Set 'UI_NONE' for 'TARGET_EXCEPT_UNWIND_INFO' [PR94282] 2020-04-29 09:39:03 +02:00
lastprivate-conditional-1.c tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__CONDTEMP_. 2019-05-24 23:31:59 +02:00
lastprivate-conditional-2.c tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__CONDTEMP_. 2019-05-24 23:31:59 +02:00
lastprivate-conditional-3.c omp-low.c (lower_omp_1): Look through ordered... 2019-05-27 23:31:40 +02:00
lastprivate-conditional-4.c gimplify.c (struct gimplify_omp_ctx): Add clauses member. 2019-05-29 09:51:43 +02:00
lastprivate-conditional-5.c gimplify.c (struct gimplify_omp_ctx): Add clauses member. 2019-05-29 09:51:43 +02:00
lastprivate-conditional-6.c gimplify.c (struct gimplify_omp_ctx): Add clauses member. 2019-05-29 09:51:43 +02:00
lastprivate-conditional-7.c gimplify.c (gimplify_scan_omp_clauses): Don't sorry_at on lastprivate conditional on combined for simd. 2019-06-04 14:49:03 +02:00
lastprivate-conditional-8.c gimplify.c (gimplify_scan_omp_clauses): Don't sorry_at on lastprivate conditional on combined for simd. 2019-06-04 14:49:03 +02:00
lastprivate-conditional-9.c gimplify.c (gimplify_scan_omp_clauses): Don't sorry_at on lastprivate conditional on combined for simd. 2019-06-04 14:49:03 +02:00
lastprivate-conditional-10.c gimplify.c (gimplify_scan_omp_clauses): Don't sorry_at on lastprivate conditional on combined for simd. 2019-06-04 14:49:03 +02:00
loop-1.c tree.def (OMP_LOOP): New tree code. 2019-07-20 13:21:42 +02:00
loop-13.c
loop-14.c
loop-15.c
master-combined-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
monotonic-1.c
monotonic-2.c
nonmonotonic-1.c
nonmonotonic-2.c
ordered-4.c
pause-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pause-2.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr45784.c
pr64824.c
pr64868.c
pr66199-1.c
pr66199-2.c
pr66199-3.c
pr66199-4.c
pr66199-5.c
pr66199-6.c
pr66199-7.c
pr66199-8.c
pr66199-9.c
pr66199-10.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr66199-11.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr66199-12.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr66199-13.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr66199-14.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
pr69389.c
pr81875.c
pr83046.c
pr93515.c openmp: Fix handling of non-addressable shared scalars in parallel nested inside of target [PR93515] 2020-02-06 09:19:08 +01:00
reduction-16.c [libgomp, nvptx] Add __sync_compare_and_swap_16 2020-09-14 08:28:56 +02:00
simd-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
simd-14.c
simd-15.c
simd-16.c
simd-17.c
target-1.c
target-2.c
target-10.c
target-13.c
target-40.c openmp: Also implicitly mark as declare target to functions mentioned in target regions 2020-05-14 09:48:32 +02:00
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 task-reduction-8.c (bar): Add in_reduction clause for s[0]. 2018-11-08 20:38:21 +01:00
task-reduction-9.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 workshare-reduction-1.c: New test. 2018-11-09 14:02:50 +01:00
task-reduction-14.c workshare-reduction-1.c: New test. 2018-11-09 14:02:50 +01:00
taskgroup-1.c
taskloop-1.c
taskloop-2.c
taskloop-3.c
taskloop-4.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
taskwait-depend-1.c builtin-types.def (BT_FN_VOID_BOOL, [...]): New. 2018-11-08 18:13:04 +01:00
udr-1.c
unmap-infinity-2.c OpenACC reference count overhaul 2019-12-20 01:20:16 +00:00
variable-not-offloaded.c [offloading] Error on missing symbols 2018-12-14 13:48:56 +00:00