test/MC/ARM64/bitfield-encoding.s

   1 ; RUN: llvm-mc -triple arm64-apple-darwin -show-encoding < %s | FileCheck %s
   2
   3 foo:
   4 ;==---------------------------------------------------------------------------==
   5 ; 5.4.4 Bitfield Operations
   6 ;==---------------------------------------------------------------------------==
   7
   8   bfm  w1, w2, #1, #15
   9   bfm  x1, x2, #1, #15
  10   sbfm w1, w2, #1, #15
  11   sbfm x1, x2, #1, #15
  12   ubfm w1, w2, #1, #15
  13   ubfm x1, x2, #1, #15
  14
  15 ; CHECK: bfm  w1, w2, #1, #15        ; encoding: [0x41,0x3c,0x01,0x33]
  16 ; CHECK: bfm  x1, x2, #1, #15        ; encoding: [0x41,0x3c,0x41,0xb3]
  17 ; CHECK: sbfm w1, w2, #1, #15        ; encoding: [0x41,0x3c,0x01,0x13]
  18 ; CHECK: sbfm x1, x2, #1, #15        ; encoding: [0x41,0x3c,0x41,0x93]
  19 ; CHECK: ubfm w1, w2, #1, #15        ; encoding: [0x41,0x3c,0x01,0x53]
  20 ; CHECK: ubfm x1, x2, #1, #15        ; encoding: [0x41,0x3c,0x41,0xd3]
  21
  22 ;==---------------------------------------------------------------------------==
  23 ; 5.4.5 Extract (immediate)
  24 ;==---------------------------------------------------------------------------==
  25
  26   extr w1, w2, w3, #15
  27   extr x2, x3, x4, #1
  28
  29 ; CHECK: extr w1, w2, w3, #15        ; encoding: [0x41,0x3c,0x83,0x13]
  30 ; CHECK: extr x2, x3, x4, #1         ; encoding: [0x62,0x04,0xc4,0x93]