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/* { dg-do compile } */
/* { dg-options "-O1 -funswitch-loops -fdump-tree-unswitch-details -fdump-tree-optimized" } */
int ch;
int a[100];
void xxx(void)
{
int i;
for (i = 0; i < 100; i++)
{
if (ch)
a[i] = ch;
else
a[i] = i;
}
}
/* Loop should be unswitched. */
/* { dg-final { scan-tree-dump-times "Unswitching loop" 1 "unswitch" } } */
/* { dg-final { cleanup-tree-dump "unswitch" } } */
/* In effect there should be exactly three conditional jumps in the final program. */
/* { dg-final { scan-tree-dump-times "else" 3 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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