URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ldist-2.c] - Diff between revs 298 and 338

Rev 298	Rev 338
`/* { dg-do compile } */`	`/* { dg-do compile } */`
`/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */`	`/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */`

`void foo (int * __restrict__ a,`	`void foo (int * __restrict__ a,`
`int * __restrict__ b,`	`int * __restrict__ b,`
`int * __restrict__ c)`	`int * __restrict__ c)`
`{`	`{`
`int i;`	`int i;`

`for (i=1; i < 10; i++)`	`for (i=1; i < 10; i++)`
`{`	`{`
`a[i] += c[i];`	`a[i] += c[i];`
`b[i] = a[i - 1] + 1;`	`b[i] = a[i - 1] + 1;`
`}`	`}`

`/* This loop is not distributed because the cost of spliting it:`	`/* This loop is not distributed because the cost of spliting it:`

`\| for (i=1; i < N; i++)`	`\| for (i=1; i < N; i++)`
`\| a[i] += c[i];`	`\| a[i] += c[i];`
`\|`	`\|`
`\| for (i=1; i < N; i++)`	`\| for (i=1; i < N; i++)`
`\| b[i] = a[i - 1] + 1;`	`\| b[i] = a[i - 1] + 1;`

`is higher due to data in array A that is written and then read in`	`is higher due to data in array A that is written and then read in`
`another task. The cost model should forbid the transformation in`	`another task. The cost model should forbid the transformation in`
`this case.`	`this case.`
`*/`	`*/`
`}`	`}`

`/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 0 "ldist" } } */`	`/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 0 "ldist" } } */`
`/* { dg-final { cleanup-tree-dump "ldist" } } */`	`/* { dg-final { cleanup-tree-dump "ldist" } } */`