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* [gcc r13-726] OpenMP: Support nowait with Fortran [PR105378]
@ 2022-05-24 8:45 Tobias Burnus
0 siblings, 0 replies; only message in thread
From: Tobias Burnus @ 2022-05-24 8:45 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:4fb2b4f7ea6b80ae75d3efb6f86e7c6179080535
commit r13-726-g4fb2b4f7ea6b80ae75d3efb6f86e7c6179080535
Author: Tobias Burnus <tobias@codesourcery.com>
Date: Tue May 24 10:41:43 2022 +0200
OpenMP: Support nowait with Fortran [PR105378]
Fortran part to C/C++/libgomp
commit r13-724-gb43836914bdc2a37563cf31359b2c4803bfe4374
gcc/fortran/
PR c/105378
* openmp.cc (gfc_match_omp_taskwait): Accept nowait.
gcc/testsuite/
PR c/105378
* gfortran.dg/gomp/taskwait-depend-nowait-1.f90: New.
libgomp/
PR c/105378
* libgomp.texi (OpenMP 5.1): Set 'taskwait nowait' to 'Y'.
* testsuite/libgomp.fortran/taskwait-depend-nowait-1.f90: New.
Diff:
---
gcc/fortran/openmp.cc | 3 +-
.../gfortran.dg/gomp/taskwait-depend-nowait-1.f90 | 14 ++++++++
libgomp/libgomp.texi | 2 +-
.../libgomp.fortran/taskwait-depend-nowait-1.f90 | 42 ++++++++++++++++++++++
4 files changed, 59 insertions(+), 2 deletions(-)
diff --git a/gcc/fortran/openmp.cc b/gcc/fortran/openmp.cc
index 63fd4dd2767..6172ec27687 100644
--- a/gcc/fortran/openmp.cc
+++ b/gcc/fortran/openmp.cc
@@ -5701,7 +5701,8 @@ gfc_match_omp_taskwait (void)
new_st.ext.omp_clauses = NULL;
return MATCH_YES;
}
- return match_omp (EXEC_OMP_TASKWAIT, omp_mask (OMP_CLAUSE_DEPEND));
+ return match_omp (EXEC_OMP_TASKWAIT,
+ omp_mask (OMP_CLAUSE_DEPEND) | OMP_CLAUSE_NOWAIT);
}
diff --git a/gcc/testsuite/gfortran.dg/gomp/taskwait-depend-nowait-1.f90 b/gcc/testsuite/gfortran.dg/gomp/taskwait-depend-nowait-1.f90
new file mode 100644
index 00000000000..cd2f1d288be
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/gomp/taskwait-depend-nowait-1.f90
@@ -0,0 +1,14 @@
+subroutine foo (p)
+ integer :: p(*)
+ !$omp taskwait depend(iterator(i = 1:17) , in : p(i)) nowait depend(out : p(32))
+end
+
+subroutine bar (p)
+ implicit none
+ integer :: p(*)
+ !$omp taskwait depend(mutexinoutset : p(1)) nowait ! { dg-error "'mutexinoutset' kind in 'depend' clause on a 'taskwait' construct" }
+end
+
+subroutine baz
+ !$omp taskwait nowait ! { dg-error "'taskwait' construct with 'nowait' clause but no 'depend' clauses" }
+end
diff --git a/libgomp/libgomp.texi b/libgomp/libgomp.texi
index b54555d0ccb..56724687fb4 100644
--- a/libgomp/libgomp.texi
+++ b/libgomp/libgomp.texi
@@ -303,7 +303,7 @@ The OpenMP 4.5 specification is fully supported.
@code{target} regions @tab N @tab
@item @code{interop} directive @tab N @tab
@item @code{omp_interop_t} object support in runtime routines @tab N @tab
-@item @code{nowait} clause in @code{taskwait} directive @tab N @tab
+@item @code{nowait} clause in @code{taskwait} directive @tab Y @tab
@item Extensions to the @code{atomic} directive @tab Y @tab
@item @code{seq_cst} clause on a @code{flush} construct @tab Y @tab
@item @code{inoutset} argument to the @code{depend} clause @tab Y @tab
diff --git a/libgomp/testsuite/libgomp.fortran/taskwait-depend-nowait-1.f90 b/libgomp/testsuite/libgomp.fortran/taskwait-depend-nowait-1.f90
new file mode 100644
index 00000000000..a5b058d4a4f
--- /dev/null
+++ b/libgomp/testsuite/libgomp.fortran/taskwait-depend-nowait-1.f90
@@ -0,0 +1,42 @@
+program main
+ implicit none
+ integer :: a(0:63), b = 1
+ !$omp parallel num_threads (4)
+ block
+ !$omp single
+ block
+ integer :: i
+ !$omp taskwait depend(in: a) nowait
+ !$omp taskwait depend(in: a) nowait
+ !$omp taskwait
+ !$omp taskgroup
+ block
+ !$omp taskwait depend(in: a) nowait
+ !$omp taskwait depend(in: a) nowait
+ end block
+ do i = 0, 63
+ !$omp task depend(in: a) shared(a)
+ block
+ a(i) = i
+ end block
+ end do
+ !$omp taskwait depend(inout: a) nowait
+ do i = 0, 63
+ !$omp task depend(inoutset: a) shared(a)
+ block
+ if (a(i) /= i) then
+ error stop
+ else
+ a(i) = 2 * i + 1
+ end if
+ end block
+ end do
+ !$omp taskwait nowait depend(out: a) depend(in: b)
+ !$omp taskwait depend(inout: b)
+ do i = 0, 63
+ if (a(i) /= 2 * i + 1) &
+ error stop
+ end do
+ end block
+ end block
+end program
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