8a880db519
Consider checking whether a pointer has been mapped can be achieved via omp_get_mapped_ptr. omp_target_is_present is more needed to check whether the storage being pointed is mapped. This restore the old behavior of omp_target_is_present before D123093 Fixes https://github.com/llvm/llvm-project/issues/54899 Reviewed By: jdenny Differential Revision: https://reviews.llvm.org/D123891
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
// RUN: %libomptarget-compile-generic
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// RUN: %libomptarget-run-generic 2>&1 \
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// RUN: | %fcheck-generic
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// END.
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#include <omp.h>
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#include <stdio.h>
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int main() {
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int arr[100];
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#pragma omp target data map(alloc: arr[50:2]) // partially mapped
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{
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// CHECK: arr[50] must present: 1
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fprintf(stderr, "arr[50] must present: %d\n",
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omp_target_is_present(&arr[50], omp_get_default_device()));
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// CHECK: arr[0] should not present: 0
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fprintf(stderr, "arr[0] should not present: %d\n",
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omp_target_is_present(&arr[0], omp_get_default_device()));
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// CHECK: arr[49] should not present: 0
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fprintf(stderr, "arr[49] should not present: %d\n",
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omp_target_is_present(&arr[49], omp_get_default_device()));
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#pragma omp target // would implicitly map with full size but already present
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{
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arr[50] = 5;
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arr[51] = 6;
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} // must treat as present (dec ref count) even though full size not present
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} // wouldn't delete if previous ref count dec didn't happen
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// CHECK: arr[50] still present: 0
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fprintf(stderr, "arr[50] still present: %d\n",
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omp_target_is_present(&arr[50], omp_get_default_device()));
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return 0;
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}
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