1 ; RUN: llc -o - %s -mtriple=aarch64-- | FileCheck %s 2 3 ; CHECK-LABEL: and1: 4 ; CHECK: and {{w[0-9]+}}, w0, #0xfffffffd 5 6 define void @and1(i32 %a, i8* nocapture %p) { 7 entry: 8 %and = and i32 %a, 253 9 %conv = trunc i32 %and to i8 10 store i8 %conv, i8* %p, align 1 11 ret void 12 } 13 14 ; (a & 0x3dfd) | 0xffffc000 15 ; 16 ; CHECK-LABEL: and2: 17 ; CHECK: and {{w[0-9]+}}, w0, #0xfdfdfdfd 18 19 define i32 @and2(i32 %a) { 20 entry: 21 %and = and i32 %a, 15869 22 %or = or i32 %and, -16384 23 ret i32 %or 24 } 25 26 ; (a & 0x19) | 0xffffffc0 27 ; 28 ; CHECK-LABEL: and3: 29 ; CHECK: and {{w[0-9]+}}, w0, #0x99999999 30 31 define i32 @and3(i32 %a) { 32 entry: 33 %and = and i32 %a, 25 34 %or = or i32 %and, -64 35 ret i32 %or 36 } 37 38 ; (a & 0xc5600) | 0xfff1f1ff 39 ; 40 ; CHECK-LABEL: and4: 41 ; CHECK: and {{w[0-9]+}}, w0, #0xfffc07ff 42 43 define i32 @and4(i32 %a) { 44 entry: 45 %and = and i32 %a, 787968 46 %or = or i32 %and, -921089 47 ret i32 %or 48 } 49 50 ; Make sure we don't shrink or optimize an XOR's immediate operand if the 51 ; immediate is -1. Instruction selection turns (and ((xor $mask, -1), $v0)) into 52 ; a BIC. 53 54 ; CHECK-LABEL: xor1: 55 ; CHECK: orr [[R0:w[0-9]+]], wzr, #0x38 56 ; CHECK: bic {{w[0-9]+}}, [[R0]], w0, lsl #3 57 58 define i32 @xor1(i32 %a) { 59 entry: 60 %shl = shl i32 %a, 3 61 %xor = and i32 %shl, 56 62 %and = xor i32 %xor, 56 63 ret i32 %and 64 } 65 66 ; Check that, when (and %t1, 129) is transformed to (and %t0, 0), 67 ; (xor %arg, 129) doesn't get transformed to (xor %arg, 0). 68 ; 69 ; CHECK-LABEL: PR33100: 70 ; CHECK: mov w[[R0:[0-9]+]], #129 71 ; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, x[[R0]] 72 73 define i64 @PR33100(i64 %arg) { 74 entry: 75 %alloca0 = alloca i64 76 store i64 8, i64* %alloca0, align 4 77 %t0 = load i64, i64* %alloca0, align 4 78 %t1 = shl i64 %arg, %t0 79 %and0 = and i64 %t1, 129 80 %xor0 = xor i64 %arg, 129 81 %t2 = add i64 %and0, %xor0 82 ret i64 %t2 83 } 84
