| Eli Friedman | 71ad2c9 | 2011-04-02 22:45:17 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -jump-threading |
| 2 | ; PR9446 |
| 3 | ; Just check that it doesn't crash |
| 4 | |
| 5 | define void @int327() nounwind { |
| 6 | entry: |
| 7 | unreachable |
| 8 | |
| 9 | for.cond: ; preds = %for.cond4 |
| 10 | %tobool3 = icmp eq i8 undef, 0 |
| 11 | br i1 %tobool3, label %for.cond23, label %for.cond4 |
| 12 | |
| 13 | for.cond4: ; preds = %for.cond |
| 14 | br label %for.cond |
| 15 | |
| 16 | for.cond23: ; preds = %for.body28, %for.cond23, %for.cond |
| 17 | %conv321 = phi i32 [ %conv32, %for.body28 ], [ 0, %for.cond ], [ %conv321, %for.cond23 ] |
| 18 | %l_266.0 = phi i32 [ %phitmp, %for.body28 ], [ 0, %for.cond ], [ 0, %for.cond23 ] |
| 19 | %cmp26 = icmp eq i32 %l_266.0, 0 |
| 20 | br i1 %cmp26, label %for.body28, label %for.cond23 |
| 21 | |
| 22 | for.body28: ; preds = %for.cond23 |
| 23 | %and = and i32 %conv321, 1 |
| 24 | %conv32 = zext i8 undef to i32 |
| 25 | %add = add nsw i32 %l_266.0, 1 |
| 26 | %phitmp = and i32 %add, 255 |
| 27 | br label %for.cond23 |
| 28 | |
| 29 | if.end43: ; No predecessors! |
| 30 | ret void |
| 31 | } |
| 32 | |