| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 1 | ; RUN: llvm-upgrade < %s | llvm-as | opt -basicaa -load-vn -gcse -instcombine |\ |
| 2 | ; RUN: llvm-dis | grep {ret i32 0} | ||||
| 3 | declare void %foo(int*) | ||||
| 4 | declare void %bar() | ||||
| 5 | |||||
| 6 | int %test() { | ||||
| 7 | %A = alloca int | ||||
| 8 | call void %foo(int* %A) | ||||
| 9 | |||||
| 10 | %X = load int* %A | ||||
| 11 | tail call void %bar() ;; Cannot modify *%A because it's on the stack. | ||||
| 12 | %Y = load int* %A | ||||
| 13 | %Z = sub int %X, %Y | ||||
| 14 | ret int %Z | ||||
| 15 | } | ||||
| 16 | |||||
| 17 | |||||