| # RUN: llvm-mc -triple aarch64-none-linux-gnu -mattr=+v8.4a --disassemble < %s | FileCheck %s | |
| # RUN: llvm-mc -triple aarch64-none-linux-gnu -mattr=-v8.4a --disassemble < %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-V84 | |
| [0x00,0x22,0x3c,0xd5] | |
| [0x00,0x22,0x1c,0xd5] | |
| # CHECK: mrs x0, VNCR_EL2 | |
| # CHECK: msr VNCR_EL2, x0 | |
| # CHECK-NO-V84: mrs x0, S3_4_C2_C2_0 | |
| # CHECK-NO-V84: msr S3_4_C2_C2_0, x0 |