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; RUN: llvm-upgrade < %s | llvm-as | opt -reassociate -dce | llvm-dis | \
; RUN:   not grep {\\(and\\|sub\\)}

int %test1(int %a, int %b) {
        %tmp.2 = and int %b, %a
        %tmp.4 = xor int %a, -1
        %tmp.5 = and int %tmp.2, %tmp.4 ; (A&B)&~A == 0
        ret int %tmp.5
}

int %test2(int %a, int %b) {
	%tmp.1 = and int %a, 1234
        %tmp.2 = and int %b, %tmp.1
        %tmp.4 = xor int %a, -1
        %tmp.5 = and int %tmp.2, %tmp.4 ; A&~A == 0
        ret int %tmp.5
}

int %test3(int %b, int %a) {
	%tmp.1 = add int %a, 1234
        %tmp.2 = add int %b, %tmp.1
        %tmp.4 = sub int 0, %a
        %tmp.5 = add int %tmp.2, %tmp.4   ; (b+(a+1234))+-a -> b+1234
        ret int %tmp.5
}