48 lines
912 B
C
48 lines
912 B
C
/* { dg-do run } */
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/* { dg-require-effective-target vect_float } */
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#include "tree-vect.h"
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void __attribute__((noinline,noclone))
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downscale_2 (const float* src, int src_n, float* dst)
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{
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int i;
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for (i = 0; i < src_n; i += 2) {
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const float* a = src;
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const float* b = src + 4;
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dst[0] = (a[0] + b[0]) / 2;
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dst[1] = (a[1] + b[1]) / 2;
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dst[2] = (a[2] + b[2]) / 2;
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dst[3] = (a[3] + b[3]) / 2;
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src += 2 * 4;
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dst += 4;
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}
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}
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int main ()
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{
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const float in[4 * 4] = {
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1, 2, 3, 4,
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5, 6, 7, 8,
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1, 2, 3, 4,
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5, 6, 7, 8
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};
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float out[2 * 4];
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check_vect ();
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downscale_2 (in, 4, out);
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if (out[0] != 3 || out[1] != 4 || out[2] != 5 || out[3] != 6
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|| out[4] != 3 || out[5] != 4 || out[6] != 5 || out[7] != 6)
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__builtin_abort ();
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return 0;
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}
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/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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