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330d8983d2
In a nutshell, this moves our libomptarget code to populate the offload subproject. With this commit, users need to enable the new LLVM/Offload subproject as a runtime in their cmake configuration. No further changes are expected for downstream code. Tests and other components still depend on OpenMP and have also not been renamed. The results below are for a build in which OpenMP and Offload are enabled runtimes. In addition to the pure `git mv`, we needed to adjust some CMake files. Nothing is intended to change semantics. ``` ninja check-offload ``` Works with the X86 and AMDGPU offload tests ``` ninja check-openmp ``` Still works but doesn't build offload tests anymore. ``` ls install/lib ``` Shows all expected libraries, incl. - `libomptarget.devicertl.a` - `libomptarget-nvptx-sm_90.bc` - `libomptarget.rtl.amdgpu.so` -> `libomptarget.rtl.amdgpu.so.18git` - `libomptarget.so` -> `libomptarget.so.18git` Fixes: https://github.com/llvm/llvm-project/issues/75124 --------- Co-authored-by: Saiyedul Islam <Saiyedul.Islam@amd.com>
40 lines
927 B
C
40 lines
927 B
C
// RUN: %libomptarget-compile-and-run-generic
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#include <assert.h>
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#include <omp.h>
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#include <stdlib.h>
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#define N 1024
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#define OFFSET 16
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int main(int argc, char *argv[]) {
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int *host_data = (int *)malloc(sizeof(int) * N);
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void *device_ptr = omp_get_mapped_ptr(host_data, 0);
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assert(device_ptr == NULL && "the pointer should not be mapped right now");
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#pragma omp target enter data map(to: host_data[:N])
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device_ptr = omp_get_mapped_ptr(host_data, 0);
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assert(device_ptr && "the pointer should be mapped now");
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void *ptr = NULL;
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#pragma omp target map(from: ptr)
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{ ptr = host_data; }
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assert(ptr == device_ptr && "wrong pointer mapping");
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device_ptr = omp_get_mapped_ptr(host_data + OFFSET, 0);
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assert(device_ptr && "the pointer with offset should be mapped");
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#pragma omp target map(from: ptr)
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{ ptr = host_data + OFFSET; }
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assert(ptr == device_ptr && "wrong pointer mapping");
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return 0;
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}
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