| Jakub Kuderski | d2e371f | 2018-01-19 21:27:24 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -jump-threading -disable-output -verify-dom-info |
| 2 | @global = external global i64, align 8 |
| 3 | |
| 4 | define void @f() { |
| 5 | bb: |
| 6 | br label %bb1 |
| 7 | |
| 8 | bb1: |
| 9 | %tmp = load i64, i64* @global, align 8 |
| 10 | %tmp2 = icmp eq i64 %tmp, 0 |
| 11 | br i1 %tmp2, label %bb27, label %bb3 |
| 12 | |
| 13 | bb3: |
| 14 | %tmp4 = load i64, i64* @global, align 8 |
| 15 | %tmp5 = icmp eq i64 %tmp4, 0 |
| 16 | br i1 %tmp5, label %bb6, label %bb7 |
| 17 | |
| 18 | bb6: |
| 19 | br label %bb7 |
| 20 | |
| 21 | bb7: |
| 22 | %tmp8 = phi i1 [ true, %bb3 ], [ undef, %bb6 ] |
| 23 | %tmp9 = select i1 %tmp8, i64 %tmp4, i64 0 |
| 24 | br i1 false, label %bb10, label %bb23 |
| 25 | |
| 26 | bb10: |
| 27 | %tmp11 = load i64, i64* @global, align 8 |
| 28 | %tmp12 = icmp slt i64 %tmp11, 5 |
| 29 | br i1 %tmp12, label %bb13, label %bb17 |
| 30 | |
| 31 | bb13: |
| 32 | br label %bb14 |
| 33 | |
| 34 | bb14: |
| 35 | br i1 undef, label %bb15, label %bb16 |
| 36 | |
| 37 | bb15: |
| 38 | unreachable |
| 39 | |
| 40 | bb16: |
| 41 | br label %bb10 |
| 42 | |
| 43 | bb17: |
| 44 | br label %bb18 |
| 45 | |
| 46 | bb18: |
| 47 | br i1 undef, label %bb22, label %bb13 |
| 48 | |
| 49 | bb19: |
| 50 | br i1 undef, label %bb20, label %bb21 |
| 51 | |
| 52 | bb20: |
| 53 | unreachable |
| 54 | |
| 55 | bb21: |
| 56 | br label %bb18 |
| 57 | |
| 58 | bb22: |
| 59 | br label %bb23 |
| 60 | |
| 61 | bb23: |
| 62 | br i1 undef, label %bb24, label %bb13 |
| 63 | |
| 64 | bb24: |
| 65 | br i1 undef, label %bb26, label %bb25 |
| 66 | |
| 67 | bb25: |
| 68 | br label %bb19 |
| 69 | |
| 70 | bb26: |
| 71 | br label %bb1 |
| 72 | |
| 73 | bb27: |
| 74 | br label %bb24 |
| 75 | } |