Chris Lattner | 5abaa0c | 2002-05-16 01:03:12 +0000 | [diff] [blame] | 1 | ; This testcase ensures that redundant loads are eliminated when they should |
| 2 | ; be. All RL variables (redundant loads) should be eliminated. |
| 3 | ; |
Misha Brukman | e78760e | 2003-09-16 15:29:54 +0000 | [diff] [blame] | 4 | ; RUN: llvm-as < %s | opt -load-vn -gcse | llvm-dis | not grep %RL |
Chris Lattner | 5abaa0c | 2002-05-16 01:03:12 +0000 | [diff] [blame] | 5 | ; |
| 6 | int "test1"(int* %P) { |
| 7 | %A = load int* %P |
| 8 | %RL = load int* %P |
| 9 | %C = add int %A, %RL |
| 10 | ret int %C |
| 11 | } |
| 12 | |
| 13 | int "test2"(int* %P) { |
| 14 | %A = load int* %P |
| 15 | br label %BB2 |
| 16 | BB2: |
| 17 | br label %BB3 |
| 18 | BB3: |
| 19 | %RL = load int* %P |
| 20 | %B = add int %A, %RL |
| 21 | ret int %B |
| 22 | } |
| 23 | |