| Dan Gohman | 78a38db | 2008-09-16 01:37:08 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -scalar-evolution -analyze | grep {Loop header: (0 smax %n) iterations!} |
| Evan Cheng | 1d18308 | 2008-02-25 03:57:32 +0000 | [diff] [blame] | 2 | ; XFAIL: * |
| Wojciech Matyjewicz | ffba5f8 | 2008-02-11 18:37:34 +0000 | [diff] [blame] | 3 | |
| 4 | define void @foo(i32 %n) { |
| 5 | entry: |
| 6 | br label %header |
| 7 | header: |
| 8 | %i = phi i32 [ 0, %entry ], [ %i.inc, %next ] |
| 9 | %cond = icmp sgt i32 %n, %i |
| 10 | br i1 %cond, label %next, label %return |
| 11 | next: |
| 12 | %i.inc = add i32 %i, 1 |
| 13 | br label %header |
| 14 | return: |
| 15 | ret void |
| 16 | } |