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llvm-project/llvm/test/MC/AArch64/armv8.4a-vncr.s

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[AArch64] Armv8.4-A: system registers This adds the following system registers: - RAS registers, - MPAM registers, - Activitiy monitor registers, - Trace Extension registers, - Timing insensitivity of data processing instructions, - Enhanced Support for Nested Virtualization. Differential Revision: https://reviews.llvm.org/D48871 llvm-svn: 336193
2018-07-03 20:09:20 +08:00
// RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mattr=+v8.4a < %s 2> %t | FileCheck %s --check-prefix=CHECK
// RUN: not llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mattr=-v8.4a < %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-V84
//------------------------------------------------------------------------------
// ARMV8.4-A Enhanced Support for Nested Virtualization
//------------------------------------------------------------------------------
mrs x0, VNCR_EL2
msr VNCR_EL2, x0
// CHECK: mrs x0, VNCR_EL2 // encoding: [0x00,0x22,0x3c,0xd5]
// CHECK: msr VNCR_EL2, x0 // encoding: [0x00,0x22,0x1c,0xd5]
//CHECK-NO-V84: error: expected readable system register
//CHECK-NO-V84-NEXT: mrs x0, VNCR_EL2
//CHECK-NO-V84-NEXT: ^
//CHECK-NO-V84-NEXT: error: expected writable system register or pstate
//CHECK-NO-V84-NEXT: msr VNCR_EL2, x0
//CHECK-NO-V84-NEXT: ^