llvm/test/CodeGen/AArch64/and-mask-variable.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-none-elf -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SD
; RUN: llc -mtriple=aarch64-none-elf -global-isel -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-GI

define i32 @mask_pair(i32 %x, i32 %y) {
; CHECK-SD-LABEL: mask_pair:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    lsr w8, w0, w1
; CHECK-SD-NEXT:    lsl w0, w8, w1
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: mask_pair:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    mov w8, #-1 // =0xffffffff
; CHECK-GI-NEXT:    lsl w8, w8, w1
; CHECK-GI-NEXT:    and w0, w8, w0
; CHECK-GI-NEXT:    ret
  %shl = shl nsw i32 -1, %y
  %and = and i32 %shl, %x
  ret i32 %and
}

define i64 @mask_pair_64(i64 %x, i64 %y) {
; CHECK-SD-LABEL: mask_pair_64:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    lsr x8, x0, x1
; CHECK-SD-NEXT:    lsl x0, x8, x1
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: mask_pair_64:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    mov x8, #-1 // =0xffffffffffffffff
; CHECK-GI-NEXT:    lsl x8, x8, x1
; CHECK-GI-NEXT:    and x0, x8, x0
; CHECK-GI-NEXT:    ret
  %shl = shl nsw i64 -1, %y
  %and = and i64 %shl, %x
  ret i64 %and
}

define i128 @mask_pair_128(i128 %x, i128 %y) {
; CHECK-SD-LABEL: mask_pair_128:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    mov x8, #-1 // =0xffffffffffffffff
; CHECK-SD-NEXT:    mvn w9, w2
; CHECK-SD-NEXT:    mov x10, #9223372036854775807 // =0x7fffffffffffffff
; CHECK-SD-NEXT:    lsl x8, x8, x2
; CHECK-SD-NEXT:    lsr x9, x10, x9
; CHECK-SD-NEXT:    tst x2, #0x40
; CHECK-SD-NEXT:    orr x9, x8, x9
; CHECK-SD-NEXT:    csel x9, x8, x9, ne
; CHECK-SD-NEXT:    csel x8, xzr, x8, ne
; CHECK-SD-NEXT:    and x0, x8, x0
; CHECK-SD-NEXT:    and x1, x9, x1
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: mask_pair_128:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    mov x8, #-1 // =0xffffffffffffffff
; CHECK-GI-NEXT:    neg x9, x2
; CHECK-GI-NEXT:    cmp x2, #64
; CHECK-GI-NEXT:    lsl x10, x8, x2
; CHECK-GI-NEXT:    lsr x8, x8, x9
; CHECK-GI-NEXT:    orr x8, x8, x10
; CHECK-GI-NEXT:    csel x9, x10, xzr, lo
; CHECK-GI-NEXT:    csel x8, x8, x10, lo
; CHECK-GI-NEXT:    cmp x2, #0
; CHECK-GI-NEXT:    and x0, x9, x0
; CHECK-GI-NEXT:    csinv x8, x8, xzr, ne
; CHECK-GI-NEXT:    and x1, x8, x1
; CHECK-GI-NEXT:    ret
  %shl = shl nsw i128 -1, %y
  %and = and i128 %shl, %x
  ret i128 %and
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}