| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -tailduplicate -taildup-threshold=2 -S | grep add | not grep uses=1 |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 2 | |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 3 | define i32 @test1(i1 %C, i32 %A, i32* %P) { |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 4 | entry: |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 5 | br i1 %C, label %L1, label %L2 |
| 6 | L1: ; preds = %entry |
| 7 | store i32 1, i32* %P |
| 8 | br label %L2 |
| 9 | L2: ; preds = %L1, %entry |
| 10 | %X = add i32 %A, 17 ; <i32> [#uses=1] |
| 11 | ret i32 %X |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 12 | } |
| 13 | |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 14 | define i32 @test2(i1 %C, i32 %A, i32* %P) { |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 15 | entry: |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 16 | br i1 %C, label %L1, label %L2 |
| 17 | L1: ; preds = %entry |
| 18 | store i32 1, i32* %P |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 19 | br label %L3 |
| Tanya Lattner | 003eae5 | 2008-03-10 07:21:50 +0000 | [diff] [blame] | 20 | L2: ; preds = %entry |
| 21 | store i32 7, i32* %P |
| 22 | br label %L3 |
| 23 | L3: ; preds = %L2, %L1 |
| 24 | %X = add i32 %A, 17 ; <i32> [#uses=1] |
| 25 | ret i32 %X |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 26 | } |
| 27 | |