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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ldist-11.c] - Blame information for rev 826

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Line No. Rev Author Line
1 298 jeremybenn
/* { dg-do compile } */
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/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
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void foo (int * __restrict__ ia,
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          int * __restrict__ ib,
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          int * __restrict__ oxa,
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          int * __restrict__ oxb,
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          int * __restrict__ oya,
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          int * __restrict__ oyb)
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{
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  int i;
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  long int mya[52];
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  long int myb[52];
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  for (i=0; i < 52; i++)
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    {
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      mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
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      myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
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      oya[i] = 0;
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      oyb[i] = myb[i] >> 10;
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    }
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  /* This loop should be distributed, and the result should look like
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     this:
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     |  memset (oya, 0, 208);
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     |  for (i=0; i < 52; i++)
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     |    oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
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  */
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}
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/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" } } */
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/* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */
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/* { dg-final { cleanup-tree-dump "ldist" } } */

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