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1// RUN: %libomptarget-compilexx-run-and-check-generic2//3// REQUIRES: gpu4 5#include <assert.h>6#include <ompx.h>7#include <stdint.h>8#include <stdio.h>9#include <stdlib.h>10 11#pragma omp begin declare variant match(device = {arch(amdgcn)})12unsigned get_warp_size() { return __builtin_amdgcn_wavefrontsize(); }13#pragma omp end declare variant14 15#pragma omp begin declare variant match(device = {arch(nvptx64)})16unsigned get_warp_size() { return __nvvm_read_ptx_sreg_warpsize(); }17#pragma omp end declare variant18 19#pragma omp begin declare variant match(device = {kind(cpu)})20unsigned get_warp_size() { return 1; }21#pragma omp end declare variant22 23int main(int argc, char *argv[]) {24 const int num_blocks = 1;25 const int block_size = 256;26 const int N = num_blocks * block_size;27 int *res = (int *)malloc(N * sizeof(int));28 29#pragma omp target teams ompx_bare num_teams(num_blocks) \30 thread_limit(block_size) map(from : res[0 : N])31 {32 int tid = ompx_thread_id_x();33 uint64_t mask = ompx_ballot_sync(~0LU, tid & 0x1);34 if (get_warp_size() == 64)35 res[tid] = mask == 0xaaaaaaaaaaaaaaaa;36 else37 res[tid] = mask == 0xaaaaaaaa;38 }39 40 for (int i = 0; i < N; ++i)41 assert(res[i]);42 43 // CHECK: PASS44 printf("PASS\n");45 46 free(res);47 48 return 0;49}50