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annotate test/test_align.h @ 29:e59c91d050c0

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*: add aligned malloc stuff :)
author Paper <paper@tflc.us>
date Thu, 24 Apr 2025 17:12:05 -0400
parents 41dd962abdd1
children 641d8c79b1da
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3c5545b1568f *: much better alignment support & tests
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1 static int test_align(void)
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2 {
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3 int ret = 0;
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4 int i;
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6 #define RUN_TEST(sign, csign, bits, size) \
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7 do { \
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8 /* allocate the aligned array */ \
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9 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(vec_arr); \
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10 \
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11 /* fill the values */ \
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12 for (i = 0; i < size; i++) \
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13 vec_arr[i] = i; \
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14 \
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15 /* try to load it */ \
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16 v##sign##int##bits##x##size vec = v##sign##int##bits##x##size##_load_aligned(vec_arr); \
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17 \
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18 /* now allocate an output array */ \
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19 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(vec_arr_out); \
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20 \
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21 /* try storing it */ \
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22 v##sign##int##bits##x##size##_store_aligned(vec, vec_arr_out); \
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23 \
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24 /* mark success or failure */ \
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25 ret |= !!memcmp(vec_arr, vec_arr_out, size * sizeof(*vec_arr)); \
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75ab77f874e2 *: aligned generics, fixed altivec, aligned tests...
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26 \
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27 ret |= !V##csign##INT##bits##x##size##_PTR_ALIGNED(vec_arr); \
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28 ret |= !V##csign##INT##bits##x##size##_PTR_ALIGNED(vec_arr_out); \
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29 } while (0);
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31 #define RUN_TESTS(bits, size) \
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32 RUN_TEST( , , bits, size) \
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33 RUN_TEST(u, U, bits, size)
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35 RUN_TESTS(8, 2)
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37 RUN_TESTS(8, 4)
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38 RUN_TESTS(16, 2)
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40 RUN_TESTS(8, 8)
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41 RUN_TESTS(16, 4)
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42 RUN_TESTS(32, 2)
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44 RUN_TESTS(8, 16)
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45 RUN_TESTS(16, 8)
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46 RUN_TESTS(32, 4)
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47 RUN_TESTS(64, 2)
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49 RUN_TESTS(8, 32)
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50 RUN_TESTS(16, 16)
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51 RUN_TESTS(32, 8)
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52 RUN_TESTS(64, 4)
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54 RUN_TESTS(8, 64)
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55 RUN_TESTS(16, 32)
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56 RUN_TESTS(32, 16)
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57 RUN_TESTS(64, 8)
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6ff0b7a44bb6 generic: add initial support for 256-bit and 512-bit types
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59 #undef RUN_TESTS
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60 #undef RUN_TEST
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61
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62 for (i = 0; i < 50; i++) {
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63 void *q = vec_malloc(i);
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65 ret |= !!((uintptr_t)q & 63);
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66
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67 /* try a bigger size */
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68 q = vec_realloc(q, i + 10);
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70 ret |= !!((uintptr_t)q & 63);
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72 /* now a smaller one */
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73 q = vec_realloc(q, i - 10);
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75 ret |= !!((uintptr_t)q & 63);
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77 vec_free(q);
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78 }
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79
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80 return ret;
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81 }