| Wojciech Matyjewicz | 24dfd0a | 2008-07-19 13:26:15 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -analyze -scalar-evolution \ |
| 2 | ; RUN: -scalar-evolution-max-iterations=0 | grep {13 iterations} |
| Nick Lewycky | a0facae | 2007-09-27 14:12:54 +0000 | [diff] [blame] | 3 | ; PR1706 |
| 4 | |
| 5 | define i32 @f() { |
| 6 | entry: |
| 7 | br label %bb5 |
| 8 | |
| 9 | bb: ; preds = %bb5 |
| 10 | %tmp2 = shl i32 %j.0, 1 ; <i32> [#uses=1] |
| 11 | %tmp4 = add i32 %i.0, 268435456 ; <i32> [#uses=1] |
| 12 | br label %bb5 |
| 13 | |
| 14 | bb5: ; preds = %bb, %entry |
| 15 | %j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=2] |
| 16 | %i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] |
| 17 | %tmp7 = icmp slt i32 %i.0, 1610612736 ; <i1> [#uses=1] |
| 18 | br i1 %tmp7, label %bb, label %return |
| 19 | |
| 20 | return: ; preds = %bb5 |
| 21 | ret i32 %j.0 |
| 22 | } |