| 1 | // Check that omp tile (introduced in OpenMP 5.1) is permitted and behaves when |
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| 2 | // strictly nested within omp target. |
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| 3 | |
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| 4 | // RUN: %libomptarget-compile-generic -fopenmp-version=51 |
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| 5 | // RUN: %libomptarget-run-generic 2>&1 | %fcheck-generic |
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| 6 | |
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| 7 | #include <stdio.h> |
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| 8 | |
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| 9 | #define I_NTILES 8 |
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| 10 | #define J_NTILES 9 |
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| 11 | #define I_NELEMS 2 |
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| 12 | #define J_NELEMS 3 |
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| 13 | |
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| 14 | int main() { |
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| 15 | int order[I_NTILES][J_NTILES][I_NELEMS][J_NELEMS]; |
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| 16 | int i, j; |
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| 17 | #pragma omp target map(tofrom: i, j) |
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| 18 | { |
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| 19 | int next = 0; |
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| 20 | #pragma omp tile sizes(I_NELEMS, J_NELEMS) |
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| 21 | for (i = 0; i < I_NTILES * I_NELEMS; ++i) { |
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| 22 | for (j = 0; j < J_NTILES * J_NELEMS; ++j) { |
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| 23 | int iTile = i / I_NELEMS; |
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| 24 | int jTile = j / J_NELEMS; |
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| 25 | int iElem = i % I_NELEMS; |
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| 26 | int jElem = j % J_NELEMS; |
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| 27 | order[iTile][jTile][iElem][jElem] = next++; |
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| 28 | } |
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| 29 | } |
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| 30 | } |
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| 31 | int expected = 0; |
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| 32 | for (int iTile = 0; iTile < I_NTILES; ++iTile) { |
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| 33 | for (int jTile = 0; jTile < J_NTILES; ++jTile) { |
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| 34 | for (int iElem = 0; iElem < I_NELEMS; ++iElem) { |
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| 35 | for (int jElem = 0; jElem < J_NELEMS; ++jElem) { |
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| 36 | int actual = order[iTile][jTile][iElem][jElem]; |
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| 37 | if (expected != actual) { |
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| 38 | printf(format: "error: order[%d][%d][%d][%d] = %d, expected %d\n" , |
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| 39 | iTile, jTile, iElem, jElem, actual, expected); |
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| 40 | return 1; |
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| 41 | } |
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| 42 | ++expected; |
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| 43 | } |
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| 44 | } |
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| 45 | } |
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| 46 | } |
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| 47 | // Tiling leaves the loop variables with their values from the final iteration |
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| 48 | // rather than with the usual +1. |
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| 49 | expected = I_NTILES * I_NELEMS - 1; |
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| 50 | if (i != expected) { |
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| 51 | printf(format: "error: i = %d, expected %d\n" , i, expected); |
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| 52 | return 1; |
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| 53 | } |
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| 54 | expected = J_NTILES * J_NELEMS - 1; |
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| 55 | if (j != expected) { |
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| 56 | printf(format: "error: j = %d, expected %d\n" , j, expected); |
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| 57 | return 1; |
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| 58 | } |
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| 59 | // CHECK: success |
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| 60 | printf(format: "success\n" ); |
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| 61 | return 0; |
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| 62 | } |
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| 63 | |
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