test/MC/AArch64/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   sbfiz wzr, w0, #31, #1
  15   sbfiz xzr, x0, #31, #1
  16   ubfiz wzr, w0, #31, #1
  17   ubfiz xzr, x0, #31, #1
  18
  19 ; CHECK: bfxil w1, w2, #1, #15       ; encoding: [0x41,0x3c,0x01,0x33]
  20 ; CHECK: bfxil x1, x2, #1, #15       ; encoding: [0x41,0x3c,0x41,0xb3]
  21 ; CHECK: sbfx w1, w2, #1, #15        ; encoding: [0x41,0x3c,0x01,0x13]
  22 ; CHECK: sbfx x1, x2, #1, #15        ; encoding: [0x41,0x3c,0x41,0x93]
  23 ; CHECK: ubfx w1, w2, #1, #15        ; encoding: [0x41,0x3c,0x01,0x53]
  24 ; CHECK: ubfx x1, x2, #1, #15        ; encoding: [0x41,0x3c,0x41,0xd3]
  25 ; CHECK: sbfiz wzr, w0, #31, #1      ; encoding: [0x1f,0x00,0x01,0x13]
  26 ; CHECK: sbfiz xzr, x0, #31, #1      ; encoding: [0x1f,0x00,0x61,0x93]
  27 ; CHECK: lsl  wzr, w0, #31           ; encoding: [0x1f,0x00,0x01,0x53]
  28 ; CHECK: ubfiz xzr, x0, #31, #1      ; encoding: [0x1f,0x00,0x61,0xd3]
  29
  30 ;==---------------------------------------------------------------------------==
  31 ; 5.4.5 Extract (immediate)
  32 ;==---------------------------------------------------------------------------==
  33
  34   extr w1, w2, w3, #15
  35   extr x2, x3, x4, #1
  36
  37 ; CHECK: extr w1, w2, w3, #15        ; encoding: [0x41,0x3c,0x83,0x13]
  38 ; CHECK: extr x2, x3, x4, #1         ; encoding: [0x62,0x04,0xc4,0x93]