Jakub Jelinek 8b60459465 openmp: Don't optimize shared to firstprivate on task with depend clause ... The attached testcase is miscompiled, because we optimize shared clauses to firstprivate when task body can't modify the variable even when the task has depend clause. That is wrong, because firstprivate means the variable will be copied immediately when the task is created, while with depend clause some other task might change it later before the dependencies are satisfied and the task should observe the value only after the change. 2020-12-18 Jakub Jelinek <jakub@redhat.com> * gimplify.c (struct gimplify_omp_ctx): Add has_depend member. (gimplify_scan_omp_clauses): Set it to true if OMP_CLAUSE_DEPEND appears on OMP_TASK. (gimplify_adjust_omp_clauses_1, gimplify_adjust_omp_clauses): Force GOVD_WRITTEN on shared variables if task construct has depend clause. * testsuite/libgomp.c/task-6.c: New test.		2020-12-18 21:43:20 +01:00
..
appendix-a	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
examples-4
affinity-1.c	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
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	openmp: Non-rectangular loop support for non-composite worksharing loops and distribute	2020-06-27 12:43:36 +02:00
loop-18.c	openmp: Non-rectangular loop support for non-composite worksharing loops and distribute	2020-06-27 12:43:36 +02:00
loop-19.c	openmp: Optimize triangular loop logical iterator to actual iterators computation using search for quadratic equation root(s)	2020-07-09 12:07:17 +02:00
loop-20.c	openmp: Optimize triangular loop logical iterator to actual iterators computation using search for quadratic equation root(s)	2020-07-09 12:07:17 +02:00
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
pr86416-2.c
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
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	openmp: Mark deprecated symbols in OpenMP 5.0	2020-11-05 10:32:56 -08:00
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-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
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