1; RUN: llc -o - %s -mtriple=aarch64-- | FileCheck %s 2 3; CHECK-LABEL: and1: 4; CHECK: and {{w[0-9]+}}, w0, #0xfffffffd 5 6define void @and1(i32 %a, i8* nocapture %p) { 7entry: 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 19define i32 @and2(i32 %a) { 20entry: 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 31define i32 @and3(i32 %a) { 32entry: 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 43define i32 @and4(i32 %a) { 44entry: 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: mov [[R0:w[0-9]+]], #56 56; CHECK: bic {{w[0-9]+}}, [[R0]], w0, lsl #3 57 58define i32 @xor1(i32 %a) { 59entry: 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 73define i64 @PR33100(i64 %arg) { 74entry: 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