1; This test makes sure that add instructions are properly eliminated.
2; This test is for Integer BitWidth <= 64 && BitWidth % 8 != 0.
3
4; RUN: opt < %s -instcombine -S | \
5; RUN:    grep -v OK | not grep add
6
7
8define i1 @test1(i1 %x) {
9        %tmp.2 = xor i1 %x, 1
10        ;; Add of sign bit -> xor of sign bit.
11        %tmp.4 = add i1 %tmp.2, 1
12        ret i1 %tmp.4
13}
14
15define i47 @test2(i47 %x) {
16        %tmp.2 = xor i47 %x, 70368744177664
17        ;; Add of sign bit -> xor of sign bit.
18        %tmp.4 = add i47 %tmp.2, 70368744177664
19        ret i47 %tmp.4
20}
21
22define i15 @test3(i15 %x) {
23        %tmp.2 = xor i15 %x, 16384
24        ;; Add of sign bit -> xor of sign bit.
25        %tmp.4 = add i15 %tmp.2, 16384
26        ret i15 %tmp.4
27}
28
29define i49 @test6(i49 %x) {
30        ;; (x & 254)+1 -> (x & 254)|1
31        %tmp.2 = and i49 %x, 562949953421310
32        %tmp.4 = add i49 %tmp.2, 1
33        ret i49 %tmp.4
34}
35