| Dan Gohman | 8a977e2 | 2010-01-26 19:25:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution |
| Nick Lewycky | 8f4d5eb | 2008-11-03 02:43:49 +0000 | [diff] [blame] | 2 | ; PR1827 |
| 3 | |
| 4 | declare void @use(i32) |
| 5 | |
| 6 | define void @foo() { |
| 7 | entry: |
| 8 | br label %loop_1 |
| 9 | |
| 10 | loop_1: ; preds = %loop_1, %entry |
| 11 | %a = phi i32 [ 2, %entry ], [ %b, %loop_1 ] ; <i32> [#uses=2] |
| 12 | %c = phi i32 [ 5, %entry ], [ %d, %loop_1 ] ; <i32> [#uses=1] |
| 13 | %b = add i32 %a, 1 ; <i32> [#uses=1] |
| 14 | %d = add i32 %c, %a ; <i32> [#uses=3] |
| 15 | %A = icmp ult i32 %d, 50 ; <i1> [#uses=1] |
| 16 | br i1 %A, label %loop_1, label %endloop |
| 17 | |
| 18 | endloop: ; preds = %loop_1 |
| 19 | call void @use(i32 %d) |
| 20 | ret void |
| 21 | } |