44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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/* Check OMP_TARGET_OFFLOAD on systems with non-host devices but no executable
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code due to -foffload=disable.
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Note: While one might expect that -foffload=disable implies no non-host
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devices, libgomp actually detects the devices and only fails when trying to
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run as no executable code is availale for that device.
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(Without MANDATORY it simply uses host fallback, which should usually be fine
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but might have issues in corner cases.)
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We have default-device-var = 0 (default but also explicitly set), which will
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fail at runtime. For -foffload=disable without non-host devices, see
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target-50.c testcase. */
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/* { dg-do run { target offload_device } } */
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/* { dg-additional-options "-foffload=disable" } */
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/* { dg-set-target-env-var OMP_TARGET_OFFLOAD "mandatory" } */
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/* { dg-set-target-env-var OMP_DEFAULT_DEVICE "0" } */
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/* { dg-set-target-env-var OMP_DISPLAY_ENV "true" } */
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/* { dg-output ".*OMP_DEFAULT_DEVICE = '0'.*OMP_TARGET_OFFLOAD = 'MANDATORY'.*" } */
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#include <omp.h>
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int
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main ()
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{
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int x;
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/* We know that there are non-host devices. With GCC, we still find them as
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available devices, hence, check for it. */
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if (omp_get_num_devices() <= 0)
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__builtin_abort ();
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/* But due to -foffload=disable, there are no binary code for (default) device '0' */
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/* { dg-output ".*libgomp: OMP_TARGET_OFFLOAD is set to MANDATORY, but device cannot be used for offloading.*" } */
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/* { dg-shouldfail "OMP_TARGET_OFFLOAD=mandatory and no binary code for a non-host device" } */
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#pragma omp target map(tofrom:x)
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x = 5;
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if (x != 5)
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__builtin_abort ();
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return 0;
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}
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