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>
115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
// --------------------------------------------------
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// Check extends before
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// --------------------------------------------------
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// RUN: %libomptarget-compile-generic \
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// RUN: -DEXTENDS=BEFORE
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// RUN: %libomptarget-run-generic 2>&1 \
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// RUN: | %fcheck-generic
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// --------------------------------------------------
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// Check extends after
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// --------------------------------------------------
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// RUN: %libomptarget-compile-generic \
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// RUN: -DEXTENDS=AFTER
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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 <stdio.h>
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#define BEFORE 0
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#define AFTER 1
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#define SIZE 100
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#if EXTENDS == BEFORE
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#define SMALL_BEG (SIZE - 2)
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#define SMALL_END SIZE
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#define LARGE_BEG 0
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#define LARGE_END SIZE
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#elif EXTENDS == AFTER
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#define SMALL_BEG 0
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#define SMALL_END 2
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#define LARGE_BEG 0
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#define LARGE_END SIZE
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#else
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#error EXTENDS undefined
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#endif
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#define SMALL \
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SMALL_BEG: \
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(SMALL_END - SMALL_BEG)
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#define LARGE \
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LARGE_BEG: \
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(LARGE_END - LARGE_BEG)
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void check_not_present() {
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int arr[SIZE];
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for (int i = 0; i < SIZE; ++i)
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arr[i] = 99;
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// CHECK-LABEL: checking not present
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fprintf(stderr, "checking not present\n");
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// arr[LARGE] isn't (fully) present at the end of the target data region, so
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// the device-to-host transfer should not be performed, or it might fail.
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#pragma omp target data map(tofrom : arr[LARGE])
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{
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#pragma omp target exit data map(delete : arr[LARGE])
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#pragma omp target enter data map(alloc : arr[SMALL])
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#pragma omp target map(alloc : arr[SMALL])
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for (int i = SMALL_BEG; i < SMALL_END; ++i)
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arr[i] = 88;
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}
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// CHECK-NOT: omptarget
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// CHECK-NOT: error
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for (int i = 0; i < SIZE; ++i) {
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if (arr[i] != 99)
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fprintf(stderr, "error: arr[%d]=%d\n", i, arr[i]);
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}
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}
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void check_is_present() {
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int arr[SIZE];
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for (int i = 0; i < SIZE; ++i)
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arr[i] = 99;
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// CHECK-LABEL: checking is present
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fprintf(stderr, "checking is present\n");
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// arr[SMALL] is (fully) present at the end of the target data region, and the
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// device-to-host transfer should be performed only for it even though more
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// of the array is then present.
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#pragma omp target data map(tofrom : arr[SMALL])
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{
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#pragma omp target exit data map(delete : arr[SMALL])
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#pragma omp target enter data map(alloc : arr[LARGE])
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#pragma omp target map(alloc : arr[LARGE])
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for (int i = LARGE_BEG; i < LARGE_END; ++i)
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arr[i] = 88;
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}
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// CHECK-NOT: omptarget
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// CHECK-NOT: error
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for (int i = 0; i < SIZE; ++i) {
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if (SMALL_BEG <= i && i < SMALL_END) {
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if (arr[i] != 88)
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fprintf(stderr, "error: arr[%d]=%d\n", i, arr[i]);
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} else if (arr[i] != 99) {
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fprintf(stderr, "error: arr[%d]=%d\n", i, arr[i]);
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}
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}
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}
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int main() {
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check_not_present();
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check_is_present();
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return 0;
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}
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