1 ; This test makes sure that and instructions are properly eliminated. 2 ; This test is for Integer BitWidth > 64 && BitWidth <= 1024. 3 4 ; RUN: opt < %s -instcombine -S | not grep "and " 5 ; END. 6 7 8 define i999 @test0(i999 %A) { 9 %B = and i999 %A, 0 ; zero result 10 ret i999 %B 11 } 12 13 define i477 @test1(i477 %A, i477 %B) { 14 ;; (~A & ~B) == (~(A | B)) - De Morgan's Law 15 %NotA = xor i477 %A, -1 16 %NotB = xor i477 %B, -1 17 %C1 = and i477 %NotA, %NotB 18 ret i477 %C1 19 } 20 21 define i129 @tst(i129 %A, i129 %B) { 22 ;; (~A & ~B) == (~(A | B)) - De Morgan's Law 23 %NotA = xor i129 %A, -1 24 %NotB = xor i129 %B, -1 25 %C1 = and i129 %NotA, %NotB 26 ret i129 %C1 27 } 28 29 define i65 @test(i65 %A, i65 %B) { 30 ;; (~A & ~B) == (~(A | B)) - De Morgan's Law 31 %NotA = xor i65 %A, -1 32 %NotB = xor i65 -1, %B 33 %C1 = and i65 %NotA, %NotB 34 ret i65 %C1 35 } 36 37 define i66 @tes(i66 %A, i66 %B) { 38 ;; (~A & ~B) == (~(A | B)) - De Morgan's Law 39 %NotA = xor i66 %A, -1 40 %NotB = xor i66 %B, -1 41 %C1 = and i66 %NotA, %NotB 42 ret i66 %C1 43 } 44 45 define i1005 @test2(i1005 %x) { 46 %tmp.2 = and i1005 %x, -1 ; noop 47 ret i1005 %tmp.2 48 } 49 50 define i123 @test3(i123 %x) { 51 %tmp.0 = and i123 %x, 127 52 %tmp.2 = and i123 %tmp.0, 128 53 ret i123 %tmp.2 54 } 55 56 define i1 @test4(i737 %x) { 57 %A = and i737 %x, -2147483648 58 %B = icmp ne i737 %A, 0 59 ret i1 %B 60 } 61 62 define i117 @test5(i117 %A, i117* %P) { 63 %B = or i117 %A, 3 64 %C = xor i117 %B, 12 65 store i117 %C, i117* %P 66 %r = and i117 %C, 3 67 ret i117 %r 68 } 69 70 define i117 @test6(i117 %A, i117 %B) { 71 ;; ~(~X & Y) --> (X | ~Y) 72 %t0 = xor i117 %A, -1 73 %t1 = and i117 %t0, %B 74 %r = xor i117 %t1, -1 75 ret i117 %r 76 } 77 78 define i1024 @test7(i1024 %A) { 79 %X = ashr i1024 %A, 1016 ;; sign extend 80 %C1 = and i1024 %X, 255 81 ret i1024 %C1 82 } 83
