llvm/test/MC/ARM/subtarget-nop.s

   1 // RUN: llvm-mc %s --triple=arm-linux-gnueabihf -filetype=obj | llvm-objdump --no-show-raw-insn --triple=armv7 -d - | FileCheck %s
   2
   3 // Check that the architectural nop is only produced for subtargets that
   4 // support it. This includes nop padding for alignment.
   5  .syntax unified
   6  .arch armv6
   7 foo:
   8  mov r1, r0
   9  nop
  10  .p2align 4
  11  bx lr
  12
  13  .arch armv7-a
  14 bar:
  15  mov r1, r0
  16  nop
  17  .p2align 4
  18  bx lr
  19
  20  .arch armv4t
  21 baz:
  22  mov r1, r0
  23  nop
  24  .p2align 4
  25  bx lr
  26
  27 // CHECK: 00000000 <foo>:
  28 // CHECK-NEXT:  0: mov     r1, r0
  29 // CHECK-NEXT:  4: mov     r0, r0
  30 // CHECK-NEXT:  8: mov     r0, r0
  31 // CHECK-NEXT:  c: mov     r0, r0
  32 // CHECK-NEXT: 10: bx      lr
  33
  34 // CHECK: 00000014 <bar>:
  35 // CHECK-NEXT: 14: mov     r1, r0
  36 // CHECK-NEXT: 18: nop
  37 // CHECK-NEXT: 1c: nop
  38 // CHECK-NEXT: 20: bx      lr
  39
  40 // CHECK: 00000024 <baz>:
  41 // CHECK-NEXT: 24: mov     r1, r0
  42 // CHECK-NEXT: 28: mov     r0, r0
  43 // CHECK-NEXT: 2c: mov     r0, r0
  44 // CHECK-NEXT: 30: bx      lr