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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-1.c] - Blame information for rev 154

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Line No. Rev Author Line
1 149 jeremybenn 
/* { dg-do compile } */
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/* { dg-require-effective-target vect_int } */
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/* { dg-require-effective-target vect_float } */
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#define N 16
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void fbar (float *);
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void ibar (int *);
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void sbar (short *);
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/* multiple loops */
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foo (int n)
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{
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  float a[N+1];
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  float b[N];
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  float c[N];
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  float d[N];
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  int ia[N];
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  int ib[N];
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  int ic[N];
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  short sa[N];
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  short sb[N];
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  short sc[N];
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  int i,j;
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  int diff = 0;
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  char cb[N];
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  char cc[N];
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  char image[N][N];
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  char block[N][N];
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  /* Not vectorizable yet (cross-iteration cycle).  */
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  diff = 0;
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  for (i = 0; i < N; i++) {
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    diff += (cb[i] - cc[i]);
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  }
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  ibar (&diff);
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  /* Not vectorizable yet (outer-loop: not attempted.
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     inner-loop: cross iteration cycle; multi-dimensional arrays).  */
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  diff = 0;
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  for (i = 0; i < N; i++) {
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    for (i = 0; i < N; i++) {
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      diff += (image[i][j] - block[i][j]);
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    }
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  }
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  ibar (&diff);
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  /* Vectorizable.  */
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  for (i = 0; i < N; i++){
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    a[i] = b[i];
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  }
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  fbar (a);
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  /* Vectorizable.  */
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  for (i = 0; i < N; i++){
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    a[i] = b[i] + c[i] + d[i];
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  }
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  fbar (a);
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  /* Not vectorizable yet (access pattern).  */
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  for (i = 0; i < N/2; i++){
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    a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];
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    d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];
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  }
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  fbar (a);
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  /* Vectorizable.  */
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  for (i = 0; i < N; i++){
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    a[i] = b[i] + c[i];
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    d[i] = b[i] + c[i];
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    ia[i] = ib[i] + ic[i];
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  }
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  ibar (ia);
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  fbar (a);
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  fbar (d);
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  /* Not vectorizable yet (two types with different nunits in vector).  */
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  for (i = 0; i < N; i++){
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    ia[i] = ib[i] + ic[i];
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    sa[i] = sb[i] + sc[i];
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  }
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  ibar (ia);
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  sbar (sa);
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  /* Not vetorizable yet (too conservative dependence test).  */
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  for (i = 0; i < N; i++){
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    a[i] = b[i] + c[i];
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    a[i+1] = b[i] + c[i];
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  }
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  fbar (a);
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}
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/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */
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/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
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/* { dg-final { cleanup-tree-dump "vect" } } */

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