1 // RUN: %libomp-compile-and-run 2 3 // XFAIL: icc 4 // UNSUPPORTED: clang-4, clang-5, clang-6, clang-7, clang-8, clang-9, clang-10 5 // UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7, gcc-8 6 7 #include <stdio.h> 8 #include <stdlib.h> 9 10 int a = 0, b = 1; 11 12 int main(int argc, char **argv) { 13 14 #pragma omp parallel reduction(task, +:a) reduction(task, *:b) 15 { 16 #pragma omp single 17 { 18 int i; 19 for (i = 1; i <= 5; ++i) { 20 #pragma omp task in_reduction(+: a) in_reduction(*: b) 21 { 22 a += i; 23 b *= i; 24 } 25 } 26 } 27 } 28 29 if (a != 15) { 30 fprintf(stderr, "error: a != 15. Instead a = %d\n", a); 31 exit(EXIT_FAILURE); 32 } 33 if (b != 120) { 34 fprintf(stderr, "error: b != 120. Instead b = %d\n", b); 35 exit(EXIT_FAILURE); 36 } 37 38 return EXIT_SUCCESS; 39 } 40