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// RUN: %libomptarget-compile-generic -fopenmp-version=51
// RUN: %libomptarget-run-generic 2>&1 \
// RUN: | %fcheck-generic
#include <stdio.h>
#include <stdlib.h>
#define N 1024
#define FROM 64
#define LENGTH 128
int main() {
float *A = (float *)malloc(N * sizeof(float));
float *B = (float *)malloc(N * sizeof(float));
float *C = (float *)malloc(N * sizeof(float));
for (int i = 0; i < N; i++) {
C[i] = 0.0;
}
for (int i = 0; i < N; i++) {
A[i] = i;
B[i] = 2 * i;
}
#pragma omp target enter data map(to : A [FROM:LENGTH], B [FROM:LENGTH])
#pragma omp target enter data map(alloc : C [FROM:LENGTH])
// A, B and C have been mapped starting at index FROM, but inside the kernel
// they are captured implicitly so the library must look them up using their
// base address.
#pragma omp target
{
for (int i = FROM; i < FROM + LENGTH; i++) {
C[i] = A[i] + B[i];
}
}
#pragma omp target exit data map(from : C [FROM:LENGTH])
#pragma omp target exit data map(delete : A [FROM:LENGTH], B [FROM:LENGTH])
int errors = 0;
for (int i = FROM; i < FROM + LENGTH; i++)
if (C[i] != A[i] + B[i])
++errors;
// CHECK: Success
if (errors)
fprintf(stderr, "Failure\n");
else
fprintf(stderr, "Success\n");
free(A);
free(B);
free(C);
return 0;
}
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