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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [slp-28.c] - Blame information for rev 478

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Line No. Rev Author Line
1 298 jeremybenn 
/* { dg-require-effective-target vect_int } */
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#include <stdarg.h>
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#include <stdio.h>
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#include "tree-vect.h"
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#define N 32
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unsigned short in[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
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unsigned short in2[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
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unsigned short in3[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
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unsigned short check[N] = {0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18,20,21,22,23,25,26,27,28,30,31,32,33,35,36,37,38};
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unsigned short check3[N] = {0,1,2,3,4,5,6,7,8,9,10,11,5,6,7,8,9,10,11,12,13,14,15,16,10,11,12,13,14,15,16,17};
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int
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main1 ()
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{
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  int i;
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  for (i = 0; i < N/4; i++)
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    {
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      in[i*4] = in[i*4] + 5;
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      in[i*4 + 1] = in[i*4 + 1] + 5;
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      in[i*4 + 2] = in[i*4 + 2] + 5;
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      in[i*4 + 3] = in[i*4 + 3] + 5;
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    }
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  /* check results:  */
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  for (i = 0; i < N; i++)
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    {
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      if (in[i] != i+5)
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        abort ();
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    }
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  /* Not vectorizable because of data dependencies.  */
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  for (i = 1; i < N/4; i++)
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    {
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      in2[i*4] = in2[(i-1)*4] + 5;
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      in2[i*4 + 1] = in2[(i-1)*4 + 1] + 5;
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      in2[i*4 + 2] = in2[(i-1)*4 + 2] + 5;
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      in2[i*4 + 3] = in2[(i-1)*4 + 3] + 5;
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    }
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  /* check results:  */
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  for (i = 4; i < N; i++)
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    {
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      if (in2[i] != check[i])
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        abort ();
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    }
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  /* Not vectorizable because of data dependencies: distance 3 is greater than
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     the actual VF with SLP (2), but the analysis fail to detect that for now.  */
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  for (i = 3; i < N/4; i++)
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    {
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      in3[i*4] = in3[(i-3)*4] + 5;
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      in3[i*4 + 1] = in3[(i-3)*4 + 1] + 5;
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      in3[i*4 + 2] = in3[(i-3)*4 + 2] + 5;
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      in3[i*4 + 3] = in3[(i-3)*4 + 3] + 5;
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    }
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  /* check results:  */
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  for (i = 12; i < N; i++)
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    {
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      if (in3[i] != check3[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 ();
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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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/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect"  } } */
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/* { dg-final { cleanup-tree-dump "vect" } } */
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