1 ; This test makes sure that these instructions are properly eliminated.
4 ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep and
9 %B = and int %A, 0 ; zero result
14 %B = and int %A, -1 ; noop
18 bool %test3(bool %A) {
19 %B = and bool %A, false ; always = false
23 bool %test4(bool %A) {
24 %B = and bool %A, true ; noop
33 bool %test6(bool %A) {
38 int %test7(int %A) { ; A & ~A == 0
39 %NotA = xor int %A, -1
40 %B = and int %A, %NotA
44 ubyte %test8(ubyte %A) { ; AND associates
51 %B = and int %A, -2147483648 ; Test of sign bit, convert to setle %A, 0
56 bool %test9(uint %A) {
57 %B = and uint %A, 2147483648 ; Test of sign bit, convert to setle %A, 0
62 uint %test10(uint %A) {
65 %D = and uint %C, 1 ; (X ^ C1) & C2 --> (X & C2) ^ (C1&C2)
69 uint %test11(uint %A, uint* %P) {
72 store uint %C, uint* %P ; additional use of C
73 %D = and uint %C, 3 ; %C = and uint %B, 3 --> 3
77 bool %test12(uint %A, uint %B) {
78 %C1 = setlt uint %A, %B
79 %C2 = setle uint %A, %B
80 %D = and bool %C1, %C2 ; (A < B) & (A <= B) === (A < B)
84 bool %test13(uint %A, uint %B) {
85 %C1 = setlt uint %A, %B
86 %C2 = setgt uint %A, %B
87 %D = and bool %C1, %C2 ; (A < B) & (A > B) === false
91 bool %test14(ubyte %A) {
92 %B = and ubyte %A, 128
93 %C = setne ubyte %B, 0