Commit Graph

12 Commits

Author SHA1 Message Date
Joseph Huber f8ffac5987 [OpenMP] Enable new driver tests for AMDGPU
This patch enables running the new driver tests for AMDGPU. Previously
this was disabled because some tests failed. This was only because the
new driver tests hadn't been listed as unsupported or expected to fail.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D119240
2022-02-08 09:55:29 -05:00
Joseph Huber 034adaf5be [OpenMP] Completely remove old device runtime
This patch completely removes the old OpenMP device runtime. Previously,
the old runtime had the prefix `libomptarget-new-` and the old runtime
was simply called `libomptarget-`. This patch makes the formerly new
runtime the only runtime available. The entire project has been deleted,
and all references to the `libomptarget-new` runtime has been replaced
with `libomptarget-`.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D118934
2022-02-04 15:31:33 -05:00
Jon Chesterfield 27177b82d4 [OpenMP] Lower printf to __llvm_omp_vprintf
Extension of D112504. Lower amdgpu printf to `__llvm_omp_vprintf`
which takes the same const char*, void* arguments as cuda vprintf and also
passes the size of the void* alloca which will be needed by a non-stub
implementation of `__llvm_omp_vprintf` for amdgpu.

This removes the amdgpu link error on any printf in a target region in favour
of silently compiling code that doesn't print anything to stdout.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D112680
2021-11-10 15:30:56 +00:00
Jon Chesterfield 0fa45d6d80 Revert "[OpenMP] Lower printf to __llvm_omp_vprintf"
This reverts commit db81d8f6c4.
2021-11-08 20:28:57 +00:00
Jon Chesterfield db81d8f6c4 [OpenMP] Lower printf to __llvm_omp_vprintf
Extension of D112504. Lower amdgpu printf to `__llvm_omp_vprintf`
which takes the same const char*, void* arguments as cuda vprintf and also
passes the size of the void* alloca which will be needed by a non-stub
implementation of `__llvm_omp_vprintf` for amdgpu.

This removes the amdgpu link error on any printf in a target region in favour
of silently compiling code that doesn't print anything to stdout.

The exact set of changes to check-openmp probably needs revision before commit

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D112680
2021-11-08 18:38:00 +00:00
Jon Chesterfield 4d50803ce4 [libomptarget] Build DeviceRTL for amdgpu
Passes same tests as the current deviceRTL. Includes cmake change from D111987.
CI is showing a different set of pass/fails to local, committing this
without the tests enabled by default while debugging that difference.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D112227
2021-10-28 12:34:01 +01:00
Jon Chesterfield 6c7b203d1d Revert "[libomptarget] Build DeviceRTL for amdgpu"
- more tests failing on CI than failed locally when writing this patch

This reverts commit 33427fdb7b.
2021-10-28 01:01:53 +01:00
Jon Chesterfield 33427fdb7b [libomptarget] Build DeviceRTL for amdgpu
Passes same tests as the current deviceRTL. Includes cmake change from D111987.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D112227
2021-10-28 00:41:45 +01:00
Pushpinder Singh ae845d6426 [AMDGPU][OpenMP] Enable Libomptarget runtime tests
This enables the runtime tests on amdgpu targets.
10 tests have been marked as XFAIL on amdgcn currently mostly due to
missing printf.

Reviewed By: protze.joachim

Differential Revision: https://reviews.llvm.org/D99656
2021-05-03 05:56:42 +00:00
Joachim Protze 24f836e8fd [OpenMP][libomptarget] Separate lit tests for different offloading targets (2/2)
This patch fuses the RUN lines for most libomptarget tests. The previous patch
D101315 created separate test targets for each supported offloading triple.

This patch updates the RUN lines in libomptarget tests to use a generic run
line independent of the offloading target selected for the lit instance.

In cases, where no RUN line was defined for a specific offloading target,
the corresponding target is declared as XFAIL. If it turns out that a test
actually supports the target, the XFAIL line can be removed.

Differential Revision: https://reviews.llvm.org/D101326
2021-04-27 15:54:32 +02:00
Joseph Huber 807466ef28 [OpenMP] Restore backwards compatibility for libomptarget
Summary:
The changes introduced in D87946 changed the API for libomptarget
functions. `__kmpc_push_target_tripcount` was a function in Clang 11.x
but was not given a backward-compatible interface. This change will
require people using Clang 13.x or 12.x to recompile their offloading
programs.

Reviewed By: jdoerfert cchen

Differential Revision: https://reviews.llvm.org/D98358
2021-03-11 09:52:11 -05:00
Joel E. Denny 10c18c69f2 [OpenMP] Fix support for device as host
Without this patch, when the offload device is set to
`omp_get_initial_device()`, the runtime fails with an error diagnostic
when entering target regions or target data regions.

However, OpenMP 5.1, sec. 2.14.5 "target Construct", "Restrictions",
p. 203, L3-5 states:

> The device clause expression must evaluate to a non-negative integer
> value that is less than or equal to the value of
> omp_get_num_devices().

Sec. 3.7.7 "omp_get_initial_device", p. 412, L2-3 states:

> The value of the device number is the value returned by the
> omp_get_num_devices routine.

Similarly, OpenMP 5.0, sec. 2.12.5 "target Construct", "Restrictions",
p. 174 L30-32 states:

> The device clause expression must evaluate to a non-negative integer
> value less than the value of omp_get_num_devices() or to the value
> of omp_get_initial_device().

This patch fixes this behavior by changing the runtime to behave as if
offloading is disabled whenever it finds the offload device (either
from a `device` clause or the default device) is set to the host
device.  In the case of mandatory offloading when
`omp_get_num_devices() == 0`, it incorporates the behavior proposed
for OpenMP 5.2 in OpenMP spec github issue 2669.

Reviewed By: grokos, RaviNarayanaswamy

Differential Revision: https://reviews.llvm.org/D97616
2021-03-04 12:03:42 -05:00