1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-ivopts-details" } */
3
4 double g;
5
foo(char * flags,long len,long i,long steps)6 int foo(char *flags, long len, long i, long steps)
7 {
8 register long step, iter;
9
10 if(*(flags + i))
11 {
12 step = i + i + 3;
13 for(iter = i + step ; iter <= len ; iter += step)
14 {
15 steps++;
16 *(flags + iter)=0;
17 }
18 }
19 g = 5.0*(double)steps;
20
21 return 0;
22 }
23
24 /* Don't expand iv {base+step, step}_loop into {base+x+y, step}_loop
25 even if "step == x + y". */
26 /* { dg-final { scan-tree-dump "Base:\\tstep_\[0-9\]* \\+ iter|Base:\\titer_\[0-9\]* \\+ step" "ivopts"} } */
27