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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-79.c] - Blame information for rev 816

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Line No. Rev Author Line
1 149 jeremybenn
/* { dg-require-effective-target vect_float } */
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#include <stdarg.h>
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#include "tree-vect.h"
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#define N 16
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float fa[N] __attribute__ ((__aligned__(16)));
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float fb[N+4] __attribute__ ((__aligned__(16))) = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 7.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0};
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float fc[N] __attribute__ ((__aligned__(16))) = {0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5};
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/* Like vect-80.c but the pointers are not annotated as restricted,
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   and therefore can't be antialiased.  */
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int
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main1 (float *pa, float *pb, float *pc)
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{
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  int i;
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  float *q = pb + 4;
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  for (i = 0; i < N; i++)
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    {
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      pa[i] = q[i] * pc[i];
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    }
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  for (i = 0; i < N; i++)
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    {
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      if (pa[i] != q[i] * pc[i])
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        abort();
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    }
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  return 0;
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}
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int main (void)
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{
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  check_vect ();
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  main1 (fa, fb, fc);
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  return 0;
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}
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/* Currently the loops fail to vectorize due to aliasing problems.
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  If/when the aliasing problems are resolved, unalignment may
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  prevent vectorization on some targets.  */
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/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { xfail *-*-* } } } */
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/* { dg-final { scan-tree-dump-times "can't determine dependence between" 1 "vect" } } */
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/* { dg-final { cleanup-tree-dump "vect" } } */

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