Commit Graph

21 Commits

Author SHA1 Message Date
Tom de Vries 8570cce7c7 [libgomp, testsuite] Scale down some OpenACC test-cases
When a display manager is running on an nvidia card, all CUDA kernel launches
get a 5 seconds watchdog timer.

Consequently, when running the libgomp testsuite with nvptx accelerator and
GOMP_NVPTX_JIT=-O0 we run into a few FAILs like this:
...
libgomp: cuStreamSynchronize error: the launch timed out and was terminated
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/parallel-dims.c \
  -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none -O0 \
  execution test
...

Fix this by scaling down the failing test-cases by default, and reverting to
the original behaviour for GCC_TEST_RUN_EXPENSIVE=1.

Tested on x86_64-linux with nvptx accelerator.

libgomp/ChangeLog:

2022-03-25  Tom de Vries  <tdevries@suse.de>

	PR libgomp/105042
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Reduce
	execution time.
	* testsuite/libgomp.oacc-c-c++-common/vred2d-128.c: Same.
	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Same.
2022-03-25 13:51:48 +01:00
Thomas Schwinge a07b8f4fb7 OpenACC 'kernels' decomposition: resolve wrong-code cases unless manually making certain variables addressable [PR100280, PR104892]
Currently in OpenACC 'kernels' decomposition, there is special handling of
'GOMP_MAP_FORCE_TOFROM', documented to be done to avoid "internal compiler
errors in later passes".  For performance reasons, the current repetitive
to/from device copying for every region is not ideal, compared to using
'present' clauses, as done for almost all other 'GOMP_MAP_*'.  Also, the
current special handling (incomplete, evidently) is the reason for the PR104892
misbehavior.  For PR100280 etc. we've resolved all such known ICEs -- removing
the special handling for 'GOMP_MAP_FORCE_TOFROM' now resolves PR104892.

	PR middle-end/100280
	PR middle-end/104892
	gcc/
	* omp-oacc-kernels-decompose.cc (omp_oacc_kernels_decompose_1):
	Remove special handling of 'GOMP_MAP_FORCE_TOFROM'.
	gcc/testsuite/
	* c-c++-common/goacc/kernels-decompose-2.c: Adjust.
	* c-c++-common/goacc/kernels-decompose-pr100400-1-1.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr100400-1-2.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr100400-1-3.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr100400-1-4.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104061-1-1.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104061-1-2.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104061-1-3.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104061-1-4.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104132-1.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104133-1.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-pr104774-1.c: Likewise.
	* gfortran.dg/goacc/classify-kernels.f95: Likewise.
	* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/declare-vla.c: Adjust.
	* testsuite/libgomp.oacc-c-c++-common/default-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-fortran/asyncwait-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90:
	Likewise.
2022-03-12 15:37:27 +01:00
Thomas Schwinge 535afbd959 OpenACC 'kernels' decomposition: wrong-code cases unless manually making certain variables addressable [PR104892]
Document a few examples of the status quo.

	PR middle-end/104892
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c: Point
	to PR104892.
	* testsuite/libgomp.oacc-c-c++-common/default-1.c: Likewise,
	enable '--param=openacc-kernels=decompose' and adjust.
	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90:
	Likewise.
2022-03-12 15:37:27 +01:00
Thomas Schwinge 2e53fa7bb2 Enhance further testcases to verify handling of OpenACC privatization level [PR90115]
As originally introduced in commit 11b8286a83
"[OpenACC privatization] Largely extend diagnostics and corresponding testsuite
coverage [PR90115]".

	PR middle-end/90115
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/default-1.c: Enhance.
	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90: Likewise.
2022-03-12 14:00:46 +01:00
Martin Liska 2aea19bdb1 nvptx: update fix for -Wformat-diag
gcc/ChangeLog:

	* config/nvptx/nvptx.cc (nvptx_goacc_validate_dims_1): Update
	warning messages.

libgomp/ChangeLog:

	* testsuite/libgomp.oacc-c++/privatized-ref-2.C: Update scanning
	patterns.
	* testsuite/libgomp.oacc-c++/privatized-ref-3.C: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-kernels-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr85486.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr95270-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-nohost-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/struct-copyout-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/struct-copyout-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/vector-length-64-1.c:
	Likewise.
	* testsuite/libgomp.oacc-fortran/attach-descriptor-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/derivedtypes-arrays-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-loop-2.f95: Likewise.
	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/privatized-ref-1.f95: Likewise.

Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
2022-01-19 08:27:00 +01:00
Martin Liska b1f3640912 nvptx: fix -Wformat-diag warnings
gcc/ChangeLog:

	* config/nvptx/nvptx.cc (nvptx_goacc_validate_dims_1): Wrap
	keyword.
	* config/nvptx/nvptx.md: Remove trailing dot.

libgomp/ChangeLog:

	* testsuite/libgomp.oacc-c++/privatized-ref-2.C: Update keyword
	in dg-warning.
	* testsuite/libgomp.oacc-c++/privatized-ref-3.C: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-kernels-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr85486.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr95270-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-nohost-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/struct-copyout-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/struct-copyout-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/vector-length-64-1.c: Likewise.
	* testsuite/libgomp.oacc-fortran/attach-descriptor-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/derivedtypes-arrays-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-loop-2.f95: Likewise.
	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/privatized-ref-1.f95: Likewise.
2022-01-18 17:25:36 +01:00
Julian Brown c408512e1f amdgcn: Enable OpenACC worker partitioning for AMD GCN
gcc/
	* config/gcn/gcn.c (gcn_init_builtins): Override decls for
	BUILT_IN_GOACC_SINGLE_START, BUILT_IN_GOACC_SINGLE_COPY_START,
	BUILT_IN_GOACC_SINGLE_COPY_END and BUILT_IN_GOACC_BARRIER.
	(gcn_goacc_validate_dims): Turn on worker partitioning unconditionally.
	(gcn_fork_join): Update comment.
	* config/gcn/gcn.opt (flag_worker_partitioning): Remove.
	(macc_experimental_workers): Remove unused option.
	libgomp/
	* plugin/plugin-gcn.c (gcn_exec): Change default number of workers to
	16.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
	[acc_device_radeon]: Update.
	* testsuite/libgomp.oacc-c-c++-common/loop-dim-default.c
	[ACC_DEVICE_TYPE_radeon]: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
	[acc_device_radeon]: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c
	[ACC_DEVICE_TYPE_radeon]: Likewise.
	* testsuite/libgomp.oacc-fortran/optional-reduction.f90: XFAIL for
	'openacc_radeon_accel_selected' and '-O0'.
	* testsuite/libgomp.oacc-fortran/reduction-7.f90: Likewise.

Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
2021-08-09 15:08:44 +02:00
Thomas Schwinge 30656822b3 [GCN] Fix run-time variable 'num_workers'
... which currently has *not* been forced to 'num_workers (1)'.

In addition to the testcases modified here, this also fixes:

    FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/mode-transitions.c -DACC_DEVICE_TYPE_radeon=1 -DACC_MEM_SHARED=0 -foffload=amdgcn-amdhsa  -O0  execution test
    [Etc.]

    mode-transitions.exe: [...]/libgomp.oacc-c-c++-common/mode-transitions.c:702: t17: Assertion `arr_b[i] == (i ^ 31) * 8' failed.

	libgomp/
	* plugin/plugin-gcn.c (gcn_exec): Force 'num_workers (1)'
	unconditionally.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-kernels-1.c:
	Update.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Likewise.
2021-06-08 12:00:15 +02:00
Thomas Schwinge 32099c0d24 Fix 'libgomp.oacc-fortran/parallel-dims.f90' for 'acc_device_radeon'
..., by simplifying 'libgomp.oacc-c-c++-common/parallel-dims.c', and updating
the former correspondingly.  '__builtin_goacc_parlevel_id' does the right thing
for all 'acc_device_*'.

Follow-up to commit 09e0ad6253 "Update OpenACC
tests for amdgcn".

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Simplify.
	* testsuite/libgomp.oacc-fortran/parallel-dims-aux.c: Update.
2021-06-08 11:41:52 +02:00
Thomas Schwinge 0886426f5f Revert PR80547 workaround in 'libgomp.oacc-c-c++-common/parallel-dims.c'
This problem has been fixed long ago, in r267934 (commit
d41d952c9b) "[nvptx] Handle assignment to
gang-level reduction variable".

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Revert
	PR80547 workaround.
2021-06-08 11:10:55 +02:00
Thomas Schwinge e64d62c700 [nvptx] Update comment in 'libgomp.oacc-c-c++-common/parallel-dims.c'
Small fix-up for r267889 (commit 2b9d9e3937)
"[nvptx] Enable large vectors":

> 	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Expect vector
> 	length 2097152 to be reduced to 1024 instead of 32.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
	<acc_device_nvidia>: Update comment.
2021-06-08 11:06:30 +02:00
Thomas Schwinge 22cff118f7 Add '-Wopenacc-parallelism'
... to diagnose potentially suboptimal choices regarding OpenACC parallelism.

Not enabled by default: too noisy ("*potentially* suboptimal choices"); see
XFAILed 'dg-bogus'es.

	gcc/c-family/
	* c.opt (Wopenacc-parallelism): New.
	gcc/fortran/
	* lang.opt (Wopenacc-parallelism): New.
	gcc/
	* omp-offload.c (oacc_validate_dims): Implement
	'-Wopenacc-parallelism'.
	* doc/invoke.texi (-Wopenacc-parallelism): Document.
	gcc/testsuite/
	* c-c++-common/goacc/diag-parallelism-1.c: New.
	* c-c++-common/goacc/acc-icf.c: Specify '-Wopenacc-parallelism',
	and match diagnostics, as appropriate.
	* c-c++-common/goacc/classify-kernels-unparallelized.c: Likewise.
	* c-c++-common/goacc/classify-kernels.c: Likewise.
	* c-c++-common/goacc/classify-parallel.c: Likewise.
	* c-c++-common/goacc/classify-routine.c: Likewise.
	* c-c++-common/goacc/classify-serial.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-1.c: Likewise.
	* c-c++-common/goacc/kernels-decompose-2.c: Likewise.
	* c-c++-common/goacc/parallel-dims-1.c: Likewise.
	* c-c++-common/goacc/parallel-reduction.c: Likewise.
	* c-c++-common/goacc/pr70688.c: Likewise.
	* c-c++-common/goacc/routine-1.c: Likewise.
	* c-c++-common/goacc/routine-level-of-parallelism-2.c: Likewise.
	* c-c++-common/goacc/uninit-dim-clause.c: Likewise.
	* gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
	* gfortran.dg/goacc/classify-kernels.f95: Likewise.
	* gfortran.dg/goacc/classify-parallel.f95: Likewise.
	* gfortran.dg/goacc/classify-routine.f95: Likewise.
	* gfortran.dg/goacc/classify-serial.f95: Likewise.
	* gfortran.dg/goacc/kernels-decompose-1.f95: Likewise.
	* gfortran.dg/goacc/kernels-decompose-2.f95: Likewise.
	* gfortran.dg/goacc/parallel-tree.f95: Likewise.
	* gfortran.dg/goacc/routine-4.f90: Likewise.
	* gfortran.dg/goacc/routine-level-of-parallelism-1.f90: Likewise.
	* gfortran.dg/goacc/routine-module-mod-1.f90: Likewise.
	* gfortran.dg/goacc/routine-multiple-directives-1.f90: Likewise.
	* gfortran.dg/goacc/uninit-dim-clause.f95: Likewise.
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/firstprivate-1.c: Specify
	'-Wopenacc-parallelism', and match diagnostics, as appropriate.
	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-w-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/mode-transitions.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-reduction.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr85381-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/private-variables.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-7.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-g-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-w-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/static-variable-1.c:
	Likewise.
	* testsuite/libgomp.oacc-fortran/optional-private.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f: Likewise.
	* testsuite/libgomp.oacc-fortran/par-reduction-2-2.f: Likewise.
	* testsuite/libgomp.oacc-fortran/parallel-dims.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/pr84028.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/private-variables.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-5.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/routine-7.f90: Likewise.

Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>
Co-Authored-By: Tom de Vries <vries@codesourcery.com>
Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
2021-04-26 12:32:00 +02:00
Andrew Stubbs 09e0ad6253 Update OpenACC tests for amdgcn
2020-01-20  Andrew Stubbs  <ams@codesourcery.com>

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Skip test on gcn.
	* testsuite/libgomp.oacc-c-c++-common/loop-dim-default.c (main):
	Adjust test dimensions for amdgcn.
	* testsuite/libgomp.oacc-c-c++-common/loop-gwv-1.c (main): Adjust
	gang/worker/vector expectations dynamically.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-gwv-1.c
	(main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-v-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-v-2.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-v-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-w-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-wv-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c
	(acc_gang): Recognise acc_device_radeon.
	(acc_worker): Likewise.
	(acc_vector): Likewise.
	(main): Set expectations for amdgcn.
	* testsuite/libgomp.oacc-c-c++-common/routine-gwv-1.c
	(main): Adjust gang/worker/vector expectations dynamically.
	* testsuite/libgomp.oacc-c-c++-common/routine-v-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-w-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-1.c (main): Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Set expectations
	for amdgcn.
2020-01-20 16:51:06 +00:00
Maciej W. Rozycki 62aee289e4 Add OpenACC 2.6 `serial' construct support
The `serial' construct (cf. section 2.5.3 of the OpenACC 2.6 standard)
    is equivalent to a `parallel' construct with clauses `num_gangs(1)
    num_workers(1) vector_length(1)' implied.
    These clauses are therefore not supported with the `serial'
    construct. All the remaining clauses accepted with `parallel' are also
    accepted with `serial'.

    The `serial' construct is implemented like `parallel', except for
    hardcoding dimensions rather than taking them from the relevant
    clauses, in `expand_omp_target'.

    Separate codes are used to denote the `serial' construct throughout the
    middle end, even though the mapping of `serial' to an equivalent
    `parallel' construct could have been done in the individual language
    frontends. In particular, this allows to distinguish between compute
    constructs in warnings, error messages, dumps etc.

    2019-11-12  Maciej W. Rozycki  <macro@codesourcery.com>
                Tobias Burnus  <tobias@codesourcery.com>
                Frederik Harwath  <frederik@codesourcery.com>
                Thomas Schwinge  <thomas@codesourcery.com>

    gcc/
    * gimple.h (gf_mask): Add GF_OMP_TARGET_KIND_OACC_SERIAL
    enumeration constant.
    (is_gimple_omp_oacc): Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (is_gimple_omp_offloaded): Likewise.
    * gimplify.c (omp_region_type): Add ORT_ACC_SERIAL enumeration
    constant.  Adjust the value of ORT_NONE accordingly.
    (is_gimple_stmt): Handle OACC_SERIAL.
    (oacc_default_clause): Handle ORT_ACC_SERIAL.
    (gomp_needs_data_present): Likewise.
    (gimplify_adjust_omp_clauses): Likewise.
    (gimplify_omp_workshare): Handle OACC_SERIAL.
    (gimplify_expr): Likewise.
    * omp-expand.c (expand_omp_target):
    Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (build_omp_regions_1, omp_make_gimple_edges): Likewise.
    * omp-low.c (is_oacc_parallel): Rename function to...
    (is_oacc_parallel_or_serial): ... this.
    Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (scan_sharing_clauses): Adjust accordingly.
    (scan_omp_for): Likewise.
    (lower_oacc_head_mark): Likewise.
    (convert_from_firstprivate_int): Likewise.
    (lower_omp_target): Likewise.
    (check_omp_nesting_restrictions): Handle
    GF_OMP_TARGET_KIND_OACC_SERIAL.
    (lower_oacc_reductions): Likewise.
    (lower_omp_target): Likewise.
    * tree.def (OACC_SERIAL): New tree code.
    * tree-pretty-print.c (dump_generic_node): Handle OACC_SERIAL.

    * doc/generic.texi (OpenACC): Document OACC_SERIAL.

    gcc/c-family/
    * c-pragma.h (pragma_kind): Add PRAGMA_OACC_SERIAL enumeration
    constant.
    * c-pragma.c (oacc_pragmas): Add "serial" entry.

    gcc/c/
    * c-parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
    (c_parser_oacc_kernels_parallel): Rename function to...
    (c_parser_oacc_compute): ... this.  Handle PRAGMA_OACC_SERIAL.
    (c_parser_omp_construct): Update accordingly.

    gcc/cp/
    * constexpr.c (potential_constant_expression_1): Handle
    OACC_SERIAL.
    * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
    (cp_parser_oacc_kernels_parallel): Rename function to...
    (cp_parser_oacc_compute): ... this.  Handle PRAGMA_OACC_SERIAL.
    (cp_parser_omp_construct): Update accordingly.
    (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL.  Fix alphabetic
    order.
    * pt.c (tsubst_expr): Handle OACC_SERIAL.

    gcc/fortran/
    * gfortran.h (gfc_statement): Add ST_OACC_SERIAL_LOOP,
    ST_OACC_END_SERIAL_LOOP, ST_OACC_SERIAL and ST_OACC_END_SERIAL
    enumeration constants.
    (gfc_exec_op): Add EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL
    enumeration constants.
    * match.h (gfc_match_oacc_serial): New prototype.
    (gfc_match_oacc_serial_loop): Likewise.
    * dump-parse-tree.c (show_omp_node, show_code_node): Handle
    EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
    * match.c (match_exit_cycle): Handle EXEC_OACC_SERIAL_LOOP.
    * openmp.c (OACC_SERIAL_CLAUSES): New macro.
    (gfc_match_oacc_serial_loop): New function.
    (gfc_match_oacc_serial): Likewise.
    (oacc_is_loop): Handle EXEC_OACC_SERIAL_LOOP.
    (resolve_omp_clauses): Handle EXEC_OACC_SERIAL.
    (oacc_code_to_statement): Handle EXEC_OACC_SERIAL and
    EXEC_OACC_SERIAL_LOOP.
    (gfc_resolve_oacc_directive): Likewise.
    * parse.c (decode_oacc_directive) <'s'>: Add case for "serial"
    and "serial loop".
    (next_statement): Handle ST_OACC_SERIAL_LOOP and ST_OACC_SERIAL.
    (gfc_ascii_statement): Likewise.  Handle ST_OACC_END_SERIAL_LOOP
    and ST_OACC_END_SERIAL.
    (parse_oacc_structured_block): Handle ST_OACC_SERIAL.
    (parse_oacc_loop): Handle ST_OACC_SERIAL_LOOP and
    ST_OACC_END_SERIAL_LOOP.
    (parse_executable): Handle ST_OACC_SERIAL_LOOP and
    ST_OACC_SERIAL.
    (is_oacc): Handle EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
    * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
    * st.c (gfc_free_statement): Likewise.
    * trans-openmp.c (gfc_trans_oacc_construct): Handle
    EXEC_OACC_SERIAL.
    (gfc_trans_oacc_combined_directive): Handle
    EXEC_OACC_SERIAL_LOOP.
    (gfc_trans_oacc_directive): Handle EXEC_OACC_SERIAL_LOOP and
    EXEC_OACC_SERIAL.
    * trans.c (trans_code): Likewise.

    gcc/testsuite/
    * c-c++-common/goacc/parallel-dims.c: New test.
    * gfortran.dg/goacc/parallel-dims.f90: New test.

    libgomp/
    * testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims-aux.c: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims.f89: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims-2.f90: New test.

Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>


Co-Authored-By: Frederik Harwath <frederik@codesourcery.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Tobias Burnus <tobias@codesourcery.com>

From-SVN: r278082
2019-11-12 08:45:35 +00:00
Thomas Schwinge b03d721a62 [libgomp] In OpenACC testing, by default only build for the offload target that we're actually going to test
... to avoid compilation overhead, and to keep simple '-foffload=[...]'
handling in test cases.

	libgomp/
	* testsuite/libgomp.oacc-c++/c++.exp: Specify
	"-foffload=$offload_target".
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.
	* testsuite/lib/libgomp.exp
	(check_effective_target_openacc_nvidia_accel_configured): Remove,
	as (conceptually) merged into
	check_effective_target_openacc_nvidia_accel_selected.  Adjust all
	users.

From-SVN: r269109
2019-02-22 11:51:35 +01:00
Tom de Vries 2b9d9e3937 [nvptx] Enable large vectors
Allow vector_length clauses to accept values larger than warp size.  Note that
this does not enable setting vector_length to values larger than warp size using
-fopenacc-dim.

2019-01-12  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Take larger vector
	lengths into account.

	* testsuite/libgomp.oacc-c-c++-common/vector-length-128-1.c: Expect
	vector length to be 128.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Expect vector
	length 2097152 to be reduced to 1024 instead of 32.

From-SVN: r267889
2019-01-12 22:17:42 +00:00
Tom de Vries 1f62d6375b [openacc] Add __builtin_goacc_parlevel_{id,size}
2018-05-02  Tom de Vries  <tom@codesourcery.com>

	PR libgomp/82428
	* builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
	* omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
	(BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
	* builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
	(expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
	* doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
	__builtin_goacc_parlevel_size.

	* f95-lang.c (DEF_GOACC_BUILTIN_ONLY): Define.

	* c-c++-common/goacc/builtin-goacc-parlevel-id-size-2.c: New test.
	* c-c++-common/goacc/builtin-goacc-parlevel-id-size.c: New test.

	* testsuite/libgomp.oacc-c-c++-common/gang-static-2.c: Use
	__builtin_goacc_parlevel_{id,size}.
	* testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-dim-default.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-g-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-g-2.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-gwv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-g-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-gwv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-v-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-v-2.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-v-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-w-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/loop-wv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-g-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-gwv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-v-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-w-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-1.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Same.
	* testsuite/libgomp.oacc-c-c++-common/tile-1.c: Same.

From-SVN: r259850
2018-05-02 17:53:29 +00:00
Thomas Schwinge fd71a9a24d OpenACC 2.5 kernels construct: num_gangs, num_workers, vector_length clauses
gcc/c/
	* c-parser.c (OACC_KERNELS_CLAUSE_MASK): Add
	"PRAGMA_OACC_CLAUSE_NUM_GANGS", "PRAGMA_OACC_CLAUSE_NUM_WORKERS",
	"VECTOR_LENGTH".
	gcc/cp/
	* parser.c (OACC_KERNELS_CLAUSE_MASK): Add
	"PRAGMA_OACC_CLAUSE_NUM_GANGS", "PRAGMA_OACC_CLAUSE_NUM_WORKERS",
	"VECTOR_LENGTH".
	gcc/fortran/
	* openmp.c (OACC_KERNELS_CLAUSES): Add "OMP_CLAUSE_NUM_GANGS",
	"OMP_CLAUSE_NUM_WORKERS", "OMP_CLAUSE_VECTOR_LENGTH".
	gcc/
	* omp-offload.c (execute_oacc_device_lower): Remove the
	parallelism dimensions function attributes for unparallelized
	OpenACC kernels constructs.
	gcc/testsuite/
	* c-c++-common/goacc/parallel-dims-1.c: Update.
	* c-c++-common/goacc/parallel-dims-2.c: Likewise.
	* c-c++-common/goacc/routine-1.c: Likewise.
	* c-c++-common/goacc/uninit-dim-clause.c: Likewise.
	* g++.dg/goacc/template.C: Likewise.
	* gfortran.dg/goacc/kernels-tree.f95: Likewise.
	* gfortran.dg/goacc/routine-3.f90: Likewise.
	* gfortran.dg/goacc/sie.f95: Likewise.
	* gfortran.dg/goacc/uninit-dim-clause.f95: Likewise.
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Update.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-loop-2.f95: Likewise.

From-SVN: r248370
2017-05-23 17:47:32 +02:00
Thomas Schwinge 0c36d0d571 Runtime checking of OpenACC parallelism dimensions clauses
libgomp/
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Rewrite.
	* testsuite/lib/libgomp.exp
	(check_effective_target_openacc_nvidia_accel_configured): New
	proc.
	* testsuite/libgomp.oacc-c++/c++.exp (check_effective_target_c)
	(check_effective_target_c++): New procs.
	* testsuite/libgomp.oacc-c/c.exp (check_effective_target_c)
	(check_effective_target_c++): Likewise.

From-SVN: r248358
2017-05-23 11:16:05 +02:00
Cesar Philippidis c42cfb5ca3 re PR lto/70289 ([openacc] ICE in input_varpool_node)
gcc/
	PR lto/70289
	PR ipa/70348
	PR tree-optimization/70373
	PR middle-end/70533
	PR middle-end/70534
	PR middle-end/70535
	* gimplify.c (gimplify_adjust_omp_clauses): Add or adjust data
	clauses for acc parallel reductions as necessary.  Error on those
	that are private.
	* omp-low.c (scan_sharing_clauses): Don't install variables which
	are used in acc parallel reductions.
	(lower_rec_input_clauses): Remove dead code.
	(lower_oacc_reductions): Add support for reference reductions.
	(lower_reduction_clauses): Remove dead code.
	(lower_omp_target): Don't remap variables appearing in acc parallel
	reductions.
	* tree.h (OMP_CLAUSE_MAP_IN_REDUCTION): New macro.

	gcc/testsuite/
	* c-c++-common/goacc/reduction-5.c: New test.
	* c-c++-common/goacc/reduction-promotions.c: New test.
	* gfortran.dg/goacc/reduction-3.f95: New test.
	* gfortran.dg/goacc/reduction-promotions.f90: New test.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gang-np-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gw-np-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gwv-np-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gwv-np-2.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gwv-np-3.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-gwv-np-4.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-vector-p-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-vector-p-2.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-worker-p-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-wv-p-1.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-wv-p-2.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/loop-reduction-wv-p-3.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-1.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-2.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-3.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-4.c: New
	test.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Add test
	coverage.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-reduction.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/pr70289.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/pr70373.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/reduction-1.c: Add test
	coverage.
	* testsuite/libgomp.oacc-c-c++-common/reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-6.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/reduction.h: New test.
	* testsuite/libgomp.oacc-fortran/parallel-reduction.f90: New test.
	* testsuite/libgomp.oacc-fortran/pr70289.f90: New test.
	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Add test coverage.
	* testsuite/libgomp.oacc-fortran/reduction-2.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-3.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-4.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-5.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-7.f90: New test.

From-SVN: r234840
2016-04-08 14:09:47 -07:00
Nathan Sidwell ccc8282bab nvptx.c (nvptx_goacc_validate_dims): Add checking.
gcc/
	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Add checking.

	libgomp/
	* testsuite/libgomp.oacc-fortran/reduction-1.f90: Fix dimensions
	and reduction copy.
	* testsuite/libgomp.oacc-fortran/reduction-2.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-3.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-4.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/collapse-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/par-reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-initial-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-5.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: New.

From-SVN: r229780
2015-11-04 20:48:05 +00:00