| Chris Lattner | 20fad44 | 2005-05-08 23:57:34 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | grep 'ret int 0' |
| 2 | declare void %foo(int*) | ||||
| 3 | declare void %bar() | ||||
| 4 | |||||
| 5 | int %test() { | ||||
| 6 | %A = alloca int | ||||
| 7 | call void %foo(int* %A) | ||||
| 8 | |||||
| 9 | %X = load int* %A | ||||
| 10 | tail call void %bar() ;; Cannot modify *%A because it's on the stack. | ||||
| 11 | %Y = load int* %A | ||||
| 12 | %Z = sub int %X, %Y | ||||
| 13 | ret int %Z | ||||
| 14 | } | ||||
| 15 | |||||
| 16 | |||||