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https://github.com/autc04/Retro68.git
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51 lines
750 B
C
51 lines
750 B
C
/* { dg-do run { target vect_simd_clones } } */
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/* { dg-additional-options "-msse2" { target sse2_runtime } } */
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/* { dg-additional-options "-mavx" { target avx_runtime } } */
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#include <stdio.h>
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#include <stdlib.h>
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#define N 30
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int a[N], a_ref[N], b[N];
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#pragma omp declare simd inbranch
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int fib( int n )
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{
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if (n <= 1)
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return n;
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else
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return fib(n-1) + fib(n-2);
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}
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void fib_ref()
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{
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int i;
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a_ref[0] = 0;
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a_ref[1] = 1;
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for (i=2; i < N; i++)
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a_ref[i] = a_ref[i-2] + a_ref[i-1];
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}
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int main(void)
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{
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int i;
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#pragma omp simd
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for (i=0; i < N; i++)
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b[i] = i;
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#pragma omp simd
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for (i=0; i < N; i++)
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a[i] = fib(b[i]);
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fib_ref ();
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for (i=0; i < N; i++)
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if (a[i] != a_ref[i])
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abort ();
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return 0;
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}
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