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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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Rev 298 |
Rev 384 |
/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
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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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void foo (int * __restrict__ ia,
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int * __restrict__ ib,
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int * __restrict__ ib,
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int * __restrict__ oxa,
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int * __restrict__ oxa,
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int * __restrict__ oxb,
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int * __restrict__ oxb,
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int * __restrict__ oya,
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int * __restrict__ oya,
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int * __restrict__ oyb)
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int * __restrict__ oyb)
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{
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{
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int i;
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int i;
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long int mya[52];
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long int mya[52];
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long int myb[52];
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long int myb[52];
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for (i=0; i < 52; i++)
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for (i=0; i < 52; i++)
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{
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{
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mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
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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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myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
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oya[i] = 0;
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oya[i] = 0;
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oyb[i] = myb[i] >> 10;
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oyb[i] = myb[i] >> 10;
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}
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}
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/* This loop should be distributed, and the result should look like
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/* This loop should be distributed, and the result should look like
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this:
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this:
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| memset (oya, 0, 208);
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| memset (oya, 0, 208);
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| for (i=0; i < 52; i++)
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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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| oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
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*/
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*/
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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 "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 { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */
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/* { dg-final { cleanup-tree-dump "ldist" } } */
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/* { dg-final { cleanup-tree-dump "ldist" } } */
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