llvm/test/MC/AArch64/armv8.6a-ecv.s

   1 // RUN: not llvm-mc -triple aarch64 -show-encoding -mattr=+ecv   < %s 2> %t | FileCheck %s
   2 // RUN: FileCheck --check-prefix=ERROR %s < %t
   3 // RUN: not llvm-mc -triple aarch64 -show-encoding -mattr=+v8.6a < %s 2> %t | FileCheck %s
   4 // RUN: FileCheck --check-prefix=ERROR %s < %t
   5 // RUN: not llvm-mc -triple aarch64 -show-encoding               < %s 2> %t | FileCheck --check-prefix=NOECV-OUT %s
   6 // RUN: FileCheck --check-prefix=NOECV %s < %t
   7
   8 // Expect no successful code generation at all with ECV disabled
   9 // NOECV-OUT-NOT: {{msr|mrs}}
  10
  11 // Writable system registers
  12 msr CNTSCALE_EL2, x1
  13 msr CNTISCALE_EL2, x11
  14 msr CNTPOFF_EL2, x22
  15 msr CNTVFRQ_EL2, x3
  16 // CHECK: msr     CNTSCALE_EL2, x1        // encoding: [0x81,0xe0,0x1c,0xd5]
  17 // CHECK: msr     CNTISCALE_EL2, x11      // encoding: [0xab,0xe0,0x1c,0xd5]
  18 // CHECK: msr     CNTPOFF_EL2, x22        // encoding: [0xd6,0xe0,0x1c,0xd5]
  19 // CHECK: msr     CNTVFRQ_EL2, x3         // encoding: [0xe3,0xe0,0x1c,0xd5]
  20 // NOECV: :[[@LINE-8]]:5: error: expected writable system register or pstate
  21 // NOECV: :[[@LINE-8]]:5: error: expected writable system register or pstate
  22 // NOECV: :[[@LINE-8]]:5: error: expected writable system register or pstate
  23 // NOECV: :[[@LINE-8]]:5: error: expected writable system register or pstate
  24
  25 // Readonly system registers: writing them gives an error even with
  26 // ECV enabled
  27 msr CNTPCTSS_EL0, x13
  28 msr CNTVCTSS_EL0, x23
  29 // ERROR: :[[@LINE-2]]:5: error: expected writable system register or pstate
  30 // ERROR: :[[@LINE-2]]:5: error: expected writable system register or pstate
  31 // NOECV: :[[@LINE-4]]:5: error: expected writable system register or pstate
  32 // NOECV: :[[@LINE-4]]:5: error: expected writable system register or pstate
  33
  34 mrs x0, CNTSCALE_EL2
  35 mrs x5, CNTISCALE_EL2
  36 mrs x10, CNTPOFF_EL2
  37 mrs x15, CNTVFRQ_EL2
  38 mrs x20, CNTPCTSS_EL0
  39 mrs x30, CNTVCTSS_EL0
  40 // CHECK: mrs     x0, CNTSCALE_EL2        // encoding: [0x80,0xe0,0x3c,0xd5]
  41 // CHECK: mrs     x5, CNTISCALE_EL2       // encoding: [0xa5,0xe0,0x3c,0xd5]
  42 // CHECK: mrs     x10, CNTPOFF_EL2        // encoding: [0xca,0xe0,0x3c,0xd5]
  43 // CHECK: mrs     x15, CNTVFRQ_EL2        // encoding: [0xef,0xe0,0x3c,0xd5]
  44 // CHECK: mrs     x20, CNTPCTSS_EL0       // encoding: [0xb4,0xe0,0x3b,0xd5]
  45 // CHECK: mrs     x30, CNTVCTSS_EL0       // encoding: [0xde,0xe0,0x3b,0xd5]
  46 // NOECV: :[[@LINE-12]]:9: error: expected readable system register
  47 // NOECV: :[[@LINE-12]]:9: error: expected readable system register
  48 // NOECV: :[[@LINE-12]]:10: error: expected readable system register
  49 // NOECV: :[[@LINE-12]]:10: error: expected readable system register
  50 // NOECV: :[[@LINE-12]]:10: error: expected readable system register
  51 // NOECV: :[[@LINE-12]]:10: error: expected readable system register