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>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
// RUN: %libomptarget-compile-run-and-check-generic
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#include <assert.h>
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#include <stdio.h>
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#pragma omp begin declare variant match(device = {kind(gpu)})
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// Provided by the runtime.
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void *__llvm_omp_indirect_call_lookup(void *host_ptr);
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#pragma omp declare target to(__llvm_omp_indirect_call_lookup) \
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device_type(nohost)
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#pragma omp end declare variant
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#pragma omp begin declare variant match(device = {kind(cpu)})
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// We assume unified addressing on the CPU target.
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void *__llvm_omp_indirect_call_lookup(void *host_ptr) { return host_ptr; }
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#pragma omp end declare variant
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#pragma omp begin declare target indirect
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void foo(int *x) { *x = *x + 1; }
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void bar(int *x) { *x = *x + 1; }
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void baz(int *x) { *x = *x + 1; }
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#pragma omp end declare target
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int main() {
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void *foo_ptr = foo;
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void *bar_ptr = bar;
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void *baz_ptr = baz;
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int count = 0;
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void *foo_res;
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void *bar_res;
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void *baz_res;
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#pragma omp target map(to : foo_ptr, bar_ptr, baz_ptr) map(tofrom : count)
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{
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foo_res = __llvm_omp_indirect_call_lookup(foo_ptr);
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((void (*)(int *))foo_res)(&count);
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bar_res = __llvm_omp_indirect_call_lookup(bar_ptr);
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((void (*)(int *))bar_res)(&count);
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baz_res = __llvm_omp_indirect_call_lookup(baz_ptr);
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((void (*)(int *))baz_res)(&count);
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}
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assert(count == 3 && "Calling failed");
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// CHECK: PASS
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printf("PASS\n");
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}
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