llvm-mirror/test/Analysis/BasicAA/tailcall-modref.ll
2008-08-16 00:00:54 +00:00

17 lines
472 B
LLVM

; RUN: llvm-as < %s | opt -basicaa -gvn -instcombine |\
; RUN: llvm-dis | grep {ret i32 0}
declare void @foo(i32*)
declare void @bar()
define i32 @test() {
%A = alloca i32 ; <i32*> [#uses=3]
call void @foo( i32* %A )
%X = load i32* %A ; <i32> [#uses=1]
tail call void @bar( )
%Y = load i32* %A ; <i32> [#uses=1]
%Z = sub i32 %X, %Y ; <i32> [#uses=1]
ret i32 %Z
}