| ; This testcase makes sure that size is taken to account when alias analysis |
| ; is performed. It is not legal to delete the second load instruction because |
| ; the value computed by the first load instruction is changed by the store. |
| |
| ; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | grep DONOTREMOVE |
| |
| int %test() { |
| %A = alloca int |
| store int 0, int* %A |
| %X = load int* %A |
| %B = cast int* %A to sbyte* |
| %C = getelementptr sbyte* %B, long 1 |
| store sbyte 1, sbyte* %C ; Aliases %A |
| %Y.DONOTREMOVE = load int* %A |
| %Z = sub int %X, %Y.DONOTREMOVE |
| ret int %Z |
| } |
| |
