llvm-project/llvm/test/Analysis/BasicAA/global-size.ll

18 lines
363 B
LLVM

; A store or load cannot alias a global if the accessed amount is larger then
; the global.
; RUN: llvm-upgrade < %s | llvm-as | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | not grep load
%B = global short 8
implementation
short %test(int *%P) {
%X = load short* %B
store int 7, int* %P
%Y = load short* %B
%Z = sub short %Y, %X
ret short %Z
}