Jakub Jelinek 58ce047087 openmp: Fix up taskloop reduction ICE if taskloop has no iterations [PR100471] ... When a taskloop doesn't have any iterations, GOMP_taskloop* takes an early return, doesn't create any tasks and more importantly, doesn't create a taskgroup and doesn't register task reductions. But, the code emitted in the callers assumes task reductions have been registered and performs the reduction handling and task reduction unregistration. The pointer to the task reduction private variables is reused, on input it is the alignment and only on output it is the pointer, so in the case taskloop with no iterations the caller attempts to dereference the alignment value as if it was a pointer and crashes. We could in the early returns register the task reductions only to have them looped over and unregistered in the caller, but I think it is better to tell the caller there is nothing to task reduce and bypass all that. 2021-05-11 Jakub Jelinek <jakub@redhat.com> PR middle-end/100471 * omp-low.c (lower_omp_task_reductions): For OMP_TASKLOOP, if data is 0, bypass the reduction loop including GOMP_taskgroup_reduction_unregister call. * taskloop.c (GOMP_taskloop): If GOMP_TASK_FLAG_REDUCTION and not GOMP_TASK_FLAG_NOGROUP, when doing early return clear the task reduction pointer. * testsuite/libgomp.c/task-reduction-4.c: New test. (cherry picked from commit 98acbb3111)		2021-05-12 15:19:29 +02:00
..
appendix-a	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
examples-4
affinity-1.c	Update copyright years.	2021-01-04 10:26:59 +01:00
affinity-2.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
atomic-1.c
atomic-2.c
atomic-3.c
atomic-4.c
atomic-5.c
atomic-6.c
atomic-10.c
atomic-11.c
atomic-12.c
atomic-13.c
atomic-14.c
atomic-15.c
atomic-16.c
atomic-17.c
autopar-1.c
autopar-2.c
autopar-3.c
autopar-4.c
autopar-5.c
autopar-6.c
autopar-7.c
autopar-8.c
barrier-1.c
c.exp
cancel-for-1.c
cancel-for-2.c
cancel-parallel-1.c
cancel-parallel-2.c
cancel-parallel-3.c
cancel-sections-1.c
collapse-1.c
collapse-2.c
collapse-3.c
copyin-1.c
copyin-2.c
copyin-3.c
critical-1.c
critical-2.c
debug-1.c
declare-variant-1.c	lto: LTO cgraph support for late declare variant resolution [PR96680]	2020-10-28 10:29:09 +01:00
depend-1.c
depend-2.c
depend-3.c
depend-4.c
depend-5.c
depend-6.c
depend-7.c
depend-8.c
depend-9.c
depend-10.c
doacross-1.c
doacross-2.c
doacross-3.c
icv-1.c
icv-2.c
lib-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
lib-2.c	openmp: Add support for the omp_get_supported_active_levels runtime library routine	2020-10-13 13:21:02 -07:00
linear-1.c
lock-1.c
lock-2.c
lock-3.c
loop-1.c
loop-2.c
loop-3.c
loop-4.c
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-16.c
loop-17.c
loop-18.c
loop-19.c
loop-20.c
loop-21.c	openmp: Adjust outer bounds of non-rect loops	2020-07-14 10:31:59 +02:00
loop-22.c	openmp: Add support for non-rectangular loops in taskloop construct	2020-08-13 09:06:05 +02:00
loop-23.c	openmp: Add support for non-rectangular loops in taskloop construct	2020-08-13 09:06:05 +02:00
loop-24.c	openmp: Add support for non-rectangular loops in taskloop construct	2020-08-13 09:06:05 +02:00
loop-25.c	openmp: Add support for non-rect simd and improve collapsed simd support	2020-09-25 10:43:37 +02:00
nested-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
nested-2.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
nested-3.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
nestedfn-1.c
nestedfn-2.c
nestedfn-3.c
nestedfn-4.c
nestedfn-5.c
nestedfn-6.c
nqueens-1.c
omp_hello.c
omp_matvec.c
omp_orphan.c
omp_reduction.c
omp_workshare1.c
omp_workshare2.c
omp_workshare3.c
omp_workshare4.c
omp-loop01.c
omp-loop02.c
omp-loop03.c
omp-nested-1.c
omp-nested-2.c
omp-nested-3.c
omp-parallel-for.c
omp-parallel-if.c
omp-single-1.c
omp-single-2.c
omp-single-3.c
ordered-1.c
ordered-2.c
ordered-3.c
ordered-5.c
parallel-1.c
parloops-exit-first-loop-alt-2.c
parloops-exit-first-loop-alt-3.c
parloops-exit-first-loop-alt-4.c
parloops-exit-first-loop-alt-5.c
parloops-exit-first-loop-alt-6.c
parloops-exit-first-loop-alt-7.c
parloops-exit-first-loop-alt.c
pr24455-1.c
pr24455.c
pr26171.c
pr26943-1.c
pr26943-2.c
pr26943-3.c
pr26943-4.c
pr29947-1.c
pr29947-2.c
pr30494.c
pr32362-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr32362-2.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr32362-3.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr32468.c
pr33880.c
pr34513.c
pr35130.c
pr35196.c
pr35549.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr35625.c
pr36802-1.c
pr36802-2.c
pr36802-3.c
pr38650.c
pr39154.c
pr39591-1.c
pr39591-2.c
pr39591-3.c
pr42029.c
pr42942.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr43893.c
pr46032-2.c
pr46032.c
pr46193.c
pr46886.c
pr48591.c
pr49897-1.c
pr49897-2.c
pr49898-1.c
pr49898-2.c
pr52547.c
pr58392.c
pr58756.c
pr61200.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
pr64734.c
pr66133.c
pr66714.c
pr68960.c
pr69110.c
pr69805.c
pr70680-1.c
pr70680-2.c
pr79940.c
pr80394.c
pr80809-1.c
pr80809-2.c
pr80809-3.c
pr80853.c
pr81687-1.c
pr81687-2.c
pr86416-1.c	libgomp/testsuite: Fix checks for dg-excess-errors	2021-04-27 18:09:21 +02:00
pr86416-2.c	libgomp/testsuite: Fix checks for dg-excess-errors	2021-04-27 18:09:21 +02:00
pr86660.c
pr89002.c
pr90779.c
pr90811.c
pr93566.c
pr95620.c	x86-64: Define ASM_OUTPUT_ALIGNED_DECL_LOCAL	2020-07-18 08:51:54 -07:00
pr99555-1.c	XFAIL OpenMP/nvptx execution-time hangs for simple nested OpenMP 'target'/'parallel'/'task' constructs [PR99555]	2021-04-15 11:13:27 +02:00
priority.c
private-1.c
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
reduction-13.c
reduction-14.c
reduction-15.c
scan-1.c
scan-2.c
scan-3.c
scan-4.c
scan-5.c
scan-6.c
scan-7.c
scan-8.c
scan-9.c
scan-10.c
scan-11.c
scan-12.c
scan-13.c
scan-14.c
scan-15.c
scan-16.c
scan-17.c
scan-18.c
scan-19.c
scan-20.c
scan-21.c
scan-22.c
sections-1.c
sections-2.c
shared-1.c
shared-2.c
shared-3.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
simd-10.c
simd-11.c
simd-12.c
simd-13.c
single-1.c
single-2.c
sort-1.c	Update copyright years.	2021-01-04 10:26:59 +01:00
static-chunk-size-one.c
switch-conversion-2.c
switch-conversion.c
target-3.c
target-4.c
target-5.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
target-6.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
target-7.c
target-8.c
target-9.c
target-11.c
target-12.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
target-23.c
target-24.c
target-25.c
target-26.c
target-27.c
target-28.c
target-29.c
target-30.c
target-31.c
target-32.c	xfail and improve some failing libgomp tests [PR81690]	2020-10-28 10:30:41 +01:00
target-33.c
target-34.c
target-35.c
target-36.c
target-37.c
target-38.c
target-39.c
target-40.c	openmp: Change omp_get_initial_device () to match OpenMP 5.1 requirements	2020-10-22 09:31:01 +02:00
target-41.c	openmp: Add test for OMP_TARGET_OFFLOAD=mandatory for cases where it must not fail	2020-10-22 09:36:18 +02:00
target-42.c	openmp: Implicitly discover declare target for variants of declare variant calls	2020-10-28 10:36:31 +01:00
target-43.c	[omp, simt] Fix expand_GOMP_SIMT_*	2021-04-29 10:40:06 +02:00
target-critical-1.c
target-link-1.c
target-print-1.c
target-teams-1.c
task-1.c
task-2.c
task-3.c
task-4.c
task-5.c
task-6.c	openmp: Don't optimize shared to firstprivate on task with depend clause	2020-12-18 21:43:20 +01:00
task-reduction-1.c
task-reduction-2.c
task-reduction-3.c
task-reduction-4.c	openmp: Fix up taskloop reduction ICE if taskloop has no iterations [PR100471]	2021-05-12 15:19:29 +02:00
teams-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
teams-2.c
teams-3.c	openmp: Handle reduction clauses on host teams construct [PR96459]	2020-08-05 10:40:10 +02:00
thread-limit-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
thread-limit-2.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
thread-limit-3.c
thread-limit-4.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
thread-limit-5.c
udr-2.c
udr-3.c
uns-outer-4.c
usleep.h	testsuite/libgomp.c/usleep.h: Use sleep-loop also for GCN	2020-11-18 14:11:27 +01:00
vla-1.c