| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-ivopts-details" } */ |
| |
| double g; |
| |
| int foo(char *flags, long len, long i, long steps) |
| { |
| register long step, iter; |
| |
| if(*(flags + i)) |
| { |
| step = i + i + 3; |
| for(iter = i + step ; iter <= len ; iter += step) |
| { |
| steps++; |
| *(flags + iter)=0; |
| } |
| } |
| g = 5.0*(double)steps; |
| |
| return 0; |
| } |
| |
| /* Don't expand iv {base+step, step}_loop into {base+x+y, step}_loop |
| even if "step == x + y". */ |
| /* { dg-final { scan-tree-dump "Base:\\tstep_\[0-9\]* \\+ iter|Base:\\titer_\[0-9\]* \\+ step" "ivopts"} } */ |
