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annotate test/test_align.h @ 26:6c91cd9a2f2d

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include/vec/vec: fix vec_avg implementation now it's exactly the same as AltiVec's
author Paper <paper@tflc.us>
date Mon, 25 Nov 2024 04:43:22 +0000
parents 41dd962abdd1
children e59c91d050c0
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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
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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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29
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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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41dd962abdd1 *: allow compiling vec in a C++ translation unit
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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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3c5545b1568f *: much better alignment support & tests
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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 }