| Chris Lattner | 9e762d0 | 2003-06-28 23:52:34 +0000 | [diff] [blame] | 1 | ; Test that ds-aa is returning must-alias information when it can. |
| 2 | |
| Misha Brukman | 14285c8 | 2003-09-15 20:02:53 +0000 | [diff] [blame] | 3 | ; RUN: llvm-as < %s | opt -no-aa -ds-aa -load-vn -gcse | llvm-dis | not grep load |
| Chris Lattner | 9e762d0 | 2003-06-28 23:52:34 +0000 | [diff] [blame] | 4 | |
| Chris Lattner | 1df3112 | 2003-06-29 00:57:34 +0000 | [diff] [blame] | 5 | %X = internal global int 20 |
| Chris Lattner | 9e762d0 | 2003-06-28 23:52:34 +0000 | [diff] [blame] | 6 | |
| 7 | implementation |
| 8 | |
| 9 | int* %id(int* %P) { ret int* %P } |
| 10 | |
| 11 | int %main() { |
| 12 | store int 0, int* %X |
| 13 | %XP = call int* %id(int* %X) |
| 14 | %A = load int* %XP ; Should eliminate load! |
| 15 | ret int %A |
| 16 | } |
| 17 | |