| 1 | // RUN: %libomp-compile-and-run |
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| 2 | // critial with hint was introduced with icc 19 |
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| 3 | // UNSUPPORTED: icc-18 |
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| 4 | |
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| 5 | #include <stdio.h> |
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| 6 | #include <omp.h> |
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| 7 | #include "omp_testsuite.h" |
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| 8 | |
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| 9 | int test_omp_critical(int iter) { |
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| 10 | int sum; |
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| 11 | int known_sum; |
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| 12 | |
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| 13 | sum = 0; |
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| 14 | #pragma omp parallel |
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| 15 | { |
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| 16 | int mysum = 0; |
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| 17 | int i; |
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| 18 | #pragma omp for |
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| 19 | for (i = 0; i < 1000; i++) |
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| 20 | mysum = mysum + i; |
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| 21 | |
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| 22 | switch (iter % 4) { |
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| 23 | case 0: |
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| 24 | #pragma omp critical(c0) hint(omp_sync_hint_uncontended) |
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| 25 | sum = mysum + sum; |
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| 26 | break; |
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| 27 | case 1: |
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| 28 | #pragma omp critical(c1) hint(omp_sync_hint_contended) |
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| 29 | sum = mysum + sum; |
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| 30 | break; |
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| 31 | case 2: |
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| 32 | #pragma omp critical(c2) hint(omp_sync_hint_nonspeculative) |
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| 33 | sum = mysum + sum; |
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| 34 | break; |
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| 35 | case 3: |
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| 36 | #pragma omp critical(c3) hint(omp_sync_hint_speculative) |
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| 37 | sum = mysum + sum; |
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| 38 | break; |
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| 39 | default:; |
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| 40 | } |
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| 41 | } |
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| 42 | known_sum = 999 * 1000 / 2; |
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| 43 | return (known_sum == sum); |
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| 44 | } |
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| 45 | |
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| 46 | int main() { |
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| 47 | int i; |
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| 48 | int num_failed = 0; |
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| 49 | |
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| 50 | for (i = 0; i < 4 * REPETITIONS; i++) { |
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| 51 | if (!test_omp_critical(iter: i)) { |
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| 52 | num_failed++; |
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| 53 | } |
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| 54 | } |
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| 55 | return num_failed; |
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| 56 | } |
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| 57 | |
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