test/MC/ARM/basic-thumb2-instructions.s

   1 @ RUN: llvm-mc -triple=thumbv7-apple-darwin -show-encoding < %s | FileCheck %s
   2   .syntax unified
   3   .globl _func
   4
   5 @ Check that the assembler can handle the documented syntax from the ARM ARM.
   6 @ For complex constructs like shifter operands, check more thoroughly for them
   7 @ once then spot check that following instructions accept the form generally.
   8 @ This gives us good coverage while keeping the overall size of the test
   9 @ more reasonable.
  10
  11
  12 @ FIXME: Some 3-operand instructions have a 2-operand assembly syntax.
  13
  14 _func:
  15 @ CHECK: _func
  16
  17 @------------------------------------------------------------------------------
  18 @ ADC (immediate)
  19 @------------------------------------------------------------------------------
  20         adc r0, r1, #4
  21         adcs r0, r1, #0
  22         adc r1, r2, #255
  23         adc r3, r7, #0x00550055
  24         adc r8, r12, #0xaa00aa00
  25         adc r9, r7, #0xa5a5a5a5
  26         adc r5, r3, #0x87000000
  27         adc r4, r2, #0x7f800000
  28         adc r4, r2, #0x00000680
  29
  30 @ CHECK: adc    r0, r1, #4              @ encoding: [0x41,0xf1,0x04,0x00]
  31 @ CHECK: adcs   r0, r1, #0              @ encoding: [0x51,0xf1,0x00,0x00]
  32 @ CHECK: adc    r1, r2, #255            @ encoding: [0x42,0xf1,0xff,0x01]
  33 @ CHECK: adc    r3, r7, #5570645        @ encoding: [0x47,0xf1,0x55,0x13]
  34 @ CHECK: adc    r8, r12, #2852170240    @ encoding: [0x4c,0xf1,0xaa,0x28]
  35 @ CHECK: adc    r9, r7, #2779096485     @ encoding: [0x47,0xf1,0xa5,0x39]
  36 @ CHECK: adc    r5, r3, #2264924160     @ encoding: [0x43,0xf1,0x07,0x45]
  37 @ CHECK: adc    r4, r2, #2139095040     @ encoding: [0x42,0xf1,0xff,0x44]
  38 @ CHECK: adc    r4, r2, #1664           @ encoding: [0x42,0xf5,0xd0,0x64]
  39
  40 @------------------------------------------------------------------------------
  41 @ CBZ/CBNZ
  42 @------------------------------------------------------------------------------
  43         cbnz    r7, #6
  44         cbnz    r7, #12
  45
  46 @ CHECK: cbnz    r7, #6                  @ encoding: [0x1f,0xb9]
  47 @ CHECK: cbnz    r7, #12                 @ encoding: [0x37,0xb9]
  48
  49 @------------------------------------------------------------------------------
  50 @ IT
  51 @------------------------------------------------------------------------------
  52 @ Test encodings of a few full IT blocks, not just the IT instruction
  53
  54         iteet eq
  55         addeq r0, r1, r2
  56         nopne
  57         subne r5, r6, r7
  58         addeq r1, r2, #4
  59
  60 @ CHECK: iteet  eq                      @ encoding: [0x0d,0xbf]
  61 @ CHECK: addeq  r0, r1, r2              @ encoding: [0x88,0x18]
  62 @ CHECK: nopne                          @ encoding: [0x00,0xbf]
  63 @ CHECK: subne  r5, r6, r7              @ encoding: [0xf5,0x1b]
  64 @ CHECK: addeq  r1, r2, #4              @ encoding: [0x11,0x1d]