| Dan Gohman | f2f6ce6 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -adce -simplifycfg -S | not grep then: |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 2 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 3 | define void @dead_test8(i32* %data.1, i32 %idx.1) { |
| 4 | entry: |
| 5 | %tmp.1 = load i32* %data.1 ; <i32> [#uses=2] |
| 6 | %tmp.41 = icmp sgt i32 %tmp.1, 0 ; <i1> [#uses=1] |
| 7 | br i1 %tmp.41, label %no_exit.preheader, label %return |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 8 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 9 | no_exit.preheader: ; preds = %entry |
| 10 | %tmp.11 = getelementptr i32* %data.1, i64 1 ; <i32*> [#uses=1] |
| 11 | %tmp.22-idxcast = sext i32 %idx.1 to i64 ; <i64> [#uses=1] |
| 12 | %tmp.28 = getelementptr i32* %data.1, i64 %tmp.22-idxcast ; <i32*> [#uses=1] |
| 13 | br label %no_exit |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 14 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 15 | no_exit: ; preds = %endif, %no_exit.preheader |
| 16 | %k.1 = phi i32 [ %k.0, %endif ], [ 0, %no_exit.preheader ] ; <i32> [#uses=3] |
| 17 | %i.0 = phi i32 [ %inc.1, %endif ], [ 0, %no_exit.preheader ] ; <i32> [#uses=1] |
| 18 | %tmp.12 = load i32* %tmp.11 ; <i32> [#uses=1] |
| 19 | %tmp.14 = sub i32 0, %tmp.12 ; <i32> [#uses=1] |
| 20 | %tmp.161 = icmp ne i32 %k.1, %tmp.14 ; <i1> [#uses=1] |
| 21 | br i1 %tmp.161, label %then, label %else |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 22 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 23 | then: ; preds = %no_exit |
| 24 | %inc.0 = add i32 %k.1, 1 ; <i32> [#uses=1] |
| 25 | br label %endif |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 26 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 27 | else: ; preds = %no_exit |
| 28 | %dec = add i32 %k.1, -1 ; <i32> [#uses=1] |
| 29 | br label %endif |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 30 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 31 | endif: ; preds = %else, %then |
| 32 | %k.0 = phi i32 [ %dec, %else ], [ %inc.0, %then ] ; <i32> [#uses=1] |
| 33 | store i32 2, i32* %tmp.28 |
| 34 | %inc.1 = add i32 %i.0, 1 ; <i32> [#uses=2] |
| 35 | %tmp.4 = icmp slt i32 %inc.1, %tmp.1 ; <i1> [#uses=1] |
| 36 | br i1 %tmp.4, label %no_exit, label %return |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 37 | |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 38 | return: ; preds = %endif, %entry |
| 39 | ret void |
| Chris Lattner | ad0f417 | 2003-06-24 21:22:09 +0000 | [diff] [blame] | 40 | } |
| Tanya Lattner | ec9a35a | 2008-03-01 09:15:35 +0000 | [diff] [blame] | 41 | |