| ; RUN: llvm-as < %s | opt -scalar-evolution -analyze | grep {Loop header: (0 smax %n) iterations!} | |
| define void @foo(i32 %n) { | |
| entry: | |
| br label %header | |
| header: | |
| %i = phi i32 [ 0, %entry ], [ %i.inc, %next ] | |
| %cond = icmp sgt i32 %n, %i | |
| br i1 %cond, label %next, label %return | |
| next: | |
| %i.inc = add i32 %i, 1 | |
| br label %header | |
| return: | |
| ret void | |
| } |