llvm/test/MC/AArch64/armv9.4a-chk.s

   1 // RUN: llvm-mc -triple aarch64 -mattr=+chk -show-encoding %s | FileCheck %s
   2 // RUN: llvm-mc -triple aarch64 -mattr=+v8.9a -show-encoding %s | FileCheck %s
   3 // RUN: llvm-mc -triple aarch64 -mattr=+v9.4a -show-encoding %s | FileCheck %s
   4 // RUN: llvm-mc -triple aarch64 -mattr=+v8a -show-encoding %s | FileCheck %s --check-prefix=NO-CHK
   5
   6 // FEAT_CHK is mandatory from v8.0-a, but a clang user may not be using the LLVM
   7 // integrated assembler, so we cannot just print `chkfeat x16` in all
   8 // circumstances. Thankfully, we can always print `hint #40` when we cannot
   9 // print `chkfeat x16`.
  10 //
  11 // So, in this case, we only print `chkfeat x16` from v8.9-a onwards, as an
  12 // assembler that understands v8.9-a will understand `chkfeat x16`, and those
  13 // that understand previous versions may not.
  14
  15 chkfeat x16
  16 // CHECK: chkfeat x16                       // encoding: [0x1f,0x25,0x03,0xd5]
  17 // NO-CHK: hint #40                              // encoding: [0x1f,0x25,0x03,0xd5]
  18
  19 hint #40
  20 // CHECK: chkfeat x16                      // encoding: [0x1f,0x25,0x03,0xd5]
  21 // NO-CHK: hint #40                             // encoding: [0x1f,0x25,0x03,0xd5]