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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-cunrolli-details -fdump-rtl-loop2_unroll-details" } */
extern void bar (int);
int j;
void test (void)
{
#pragma GCC unroll 8
for (unsigned long i = 1; i <= 8; ++i)
bar(i);
/* { dg-final { scan-tree-dump "11:.*: loop with 8 iterations completely unrolled" "cunrolli" } } */
#pragma GCC unroll 8
for (unsigned long i = 1; i <= 7; ++i)
bar(i);
/* { dg-final { scan-tree-dump "16:.*: loop with 7 iterations completely unrolled" "cunrolli" } } */
#pragma GCC unroll 8
for (unsigned long i = 1; i <= 15; ++i)
bar(i);
/* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
#pragma GCC unroll 8
for (unsigned long i = 1; i <= j; ++i)
bar(i);
/* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
#pragma GCC unroll 7
for (unsigned long i = 1; i <= j; ++i)
bar(i);
/* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
unsigned long i = 0;
#pragma GCC unroll 3
do {
bar(i);
} while (++i < 9);
/* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
}
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