| Dan Gohman | f2f6ce6 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -simplifycfg -S | grep {br i1 } | count 4 |
| Chris Lattner | 6ff645b | 2009-01-19 23:03:13 +0000 | [diff] [blame] | 2 | ; PR3354 |
| 3 | ; Do not merge bb1 into the entry block, it might trap. |
| 4 | |
| 5 | @G = extern_weak global i32 |
| 6 | |
| 7 | define i32 @test(i32 %tmp21, i32 %tmp24) { |
| 8 | %tmp25 = icmp sle i32 %tmp21, %tmp24 |
| 9 | br i1 %tmp25, label %bb2, label %bb1 |
| 10 | |
| 11 | bb1: ; preds = %bb |
| 12 | %tmp26 = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0 |
| 13 | br i1 %tmp26, label %bb6, label %bb2 |
| 14 | bb2: |
| 15 | ret i32 42 |
| 16 | |
| 17 | bb6: |
| Bill Wendling | 47e208b | 2011-09-02 22:41:11 +0000 | [diff] [blame] | 18 | ret i32 927 |
| Chris Lattner | 6ff645b | 2009-01-19 23:03:13 +0000 | [diff] [blame] | 19 | } |
| 20 | |
| Chris Lattner | 63bf29b | 2009-01-20 01:15:41 +0000 | [diff] [blame] | 21 | define i32 @test2(i32 %tmp21, i32 %tmp24, i1 %tmp34) { |
| 22 | br i1 %tmp34, label %bb5, label %bb6 |
| 23 | |
| 24 | bb5: ; preds = %bb4 |
| Chris Lattner | 1c2ad9f | 2009-01-22 07:08:58 +0000 | [diff] [blame] | 25 | br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7 |
| Chris Lattner | 63bf29b | 2009-01-20 01:15:41 +0000 | [diff] [blame] | 26 | bb6: |
| 27 | ret i32 42 |
| 28 | bb7: |
| Bill Wendling | 47e208b | 2011-09-02 22:41:11 +0000 | [diff] [blame] | 29 | ret i32 927 |
| Chris Lattner | 63bf29b | 2009-01-20 01:15:41 +0000 | [diff] [blame] | 30 | } |
| 31 | |