blob: cb9451e260293e1402949317b9e48f6bd4888356 (
plain)
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
|
/* { dg-do compile } */
/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
int loop1 (int k)
{
unsigned int i;
unsigned int j;
int a[100], b[100][100];
a[0] = k;
for (i = 1; i < 100; i ++)
{
for (j = 0; j < 100; j++)
{
a[j] = k * i;
b[i][j] = a[j-1] + k;
}
}
return b[100-1][0];
}
/* We used to distribute also innermost loops, but these could produce
too much code in the outer loop, degrading performance of scalar
code. So this test was XFAILed because the cost model of the stand
alone distribution pass has evolved. Now it passes. */
/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" } } */
/* { dg-final { cleanup-tree-dump "ldist" } } */
|
