Mercurial > vec

annotate test/test_align.h @ 25:92156fe32755

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impl/ppc/altivec: update to new implementation the signed average function is wrong; it needs to round up the number when only one of them is odd, but that doesn't necessarily seem to be true because altivec is weird, and that's what we need to emulate the quirks for. ugh. also the altivec backend uses the generic functions instead of fallbacks because it does indeed use the exact same memory structure as the generic implementation...
author Paper <paper@tflc.us>
date Sun, 24 Nov 2024 11:15:59 +0000
parents 41dd962abdd1
children
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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
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5 #define RUN_TEST(sign, csign, bits, size) \
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6 do { \
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7 /* allocate the aligned array */ \
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8 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(vec_arr); \
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9 \
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10 /* fill the values */ \
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11 for (int i = 0; i < size; i++) \
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12 vec_arr[i] = i; \
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13 \
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14 /* try to load it */ \
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15 v##sign##int##bits##x##size vec = v##sign##int##bits##x##size##_load_aligned(vec_arr); \
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16 \
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17 /* now allocate an output array */ \
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18 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(vec_arr_out); \
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19 \
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20 /* try storing it */ \
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21 v##sign##int##bits##x##size##_store_aligned(vec, vec_arr_out); \
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22 \
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23 /* mark success or failure */ \
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24 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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25 \
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26 ret |= !V##csign##INT##bits##x##size##_PTR_ALIGNED(vec_arr); \
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27 ret |= !V##csign##INT##bits##x##size##_PTR_ALIGNED(vec_arr_out); \
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28 } while (0);
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30 #define RUN_TESTS(bits, size) \
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31 RUN_TEST( , , bits, size) \
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32 RUN_TEST(u, U, bits, size)
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34 RUN_TESTS(8, 2)
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36 RUN_TESTS(8, 4)
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37 RUN_TESTS(16, 2)
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39 RUN_TESTS(8, 8)
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40 RUN_TESTS(16, 4)
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41 RUN_TESTS(32, 2)
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43 RUN_TESTS(8, 16)
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44 RUN_TESTS(16, 8)
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45 RUN_TESTS(32, 4)
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46 RUN_TESTS(64, 2)
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48 RUN_TESTS(8, 32)
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49 RUN_TESTS(16, 16)
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50 RUN_TESTS(32, 8)
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51 RUN_TESTS(64, 4)
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53 RUN_TESTS(8, 64)
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54 RUN_TESTS(16, 32)
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55 RUN_TESTS(32, 16)
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56 RUN_TESTS(64, 8)
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6ff0b7a44bb6 generic: add initial support for 256-bit and 512-bit types
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58 #undef RUN_TESTS
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59 #undef RUN_TEST
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60
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61 return ret;
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62 }