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llvm-mirror/test/MC/AArch64/armv8.2a-statistical-profiling.s
Luke Geeson fa507d6291 [AArch64] Make Read Write System Registers Read Only
This patch makes the following System Registers Read Only:

 - CurrentEL
 - ICH_MISR_EL2
 - PMBIDR_EL1
 - PMSIDR_EL1

as found in:
https://developer.arm.com/docs/ddi0595/e/aarch64-system-registers

Relative line numbers were also added to the tests so we get more
informative error messages on failure.

Change-Id: I963b4f01ca5737b58f9e8e7abe9ca1d99e328758
2020-02-10 14:34:24 +00:00

99 lines
4.7 KiB
ArmAsm

// RUN: not llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mattr=+spe < %s 2> %t | FileCheck %s
// RUN: FileCheck --check-prefix=ERROR %s < %t
// RUN: not llvm-mc -triple aarch64-none-linux-gnu -show-encoding -mcpu=neoverse-n1 < %s 2> %t | FileCheck %s
// RUN: FileCheck --check-prefix=ERROR %s < %t
// RUN: not llvm-mc -triple aarch64-none-linux-gnu -show-encoding < %s 2> %t | FileCheck --check-prefix=NO_SPE_OUT %s
// RUN: FileCheck --check-prefix=NO_SPE %s < %t
// NO_SPE_OUT-NOT: msr
// NO_SPE_OUT-NOT: mrs
// NO_SPE_OUT-NOT: psb
psb csync
// CHECK: psb csync // encoding: [0x3f,0x22,0x03,0xd5]
// NO_SPE: instruction requires: spe
msr pmblimitr_el1, x0
msr pmbptr_el1, x0
msr pmbsr_el1, x0
msr pmscr_el2, x0
msr pmscr_el12, x0
msr pmscr_el1, x0
msr pmsicr_el1, x0
msr pmsirr_el1, x0
msr pmsfcr_el1, x0
msr pmsevfr_el1, x0
msr pmslatfr_el1, x0
// CHECK: msr PMBLIMITR_EL1, x0 // encoding: [0x00,0x9a,0x18,0xd5]
// CHECK: msr PMBPTR_EL1, x0 // encoding: [0x20,0x9a,0x18,0xd5]
// CHECK: msr PMBSR_EL1, x0 // encoding: [0x60,0x9a,0x18,0xd5]
// CHECK: msr PMSCR_EL2, x0 // encoding: [0x00,0x99,0x1c,0xd5]
// CHECK: msr PMSCR_EL12, x0 // encoding: [0x00,0x99,0x1d,0xd5]
// CHECK: msr PMSCR_EL1, x0 // encoding: [0x00,0x99,0x18,0xd5]
// CHECK: msr PMSICR_EL1, x0 // encoding: [0x40,0x99,0x18,0xd5]
// CHECK: msr PMSIRR_EL1, x0 // encoding: [0x60,0x99,0x18,0xd5]
// CHECK: msr PMSFCR_EL1, x0 // encoding: [0x80,0x99,0x18,0xd5]
// CHECK: msr PMSEVFR_EL1, x0 // encoding: [0xa0,0x99,0x18,0xd5]
// CHECK: msr PMSLATFR_EL1, x0 // encoding: [0xc0,0x99,0x18,0xd5]
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// NO_SPE: error: expected writable system register or pstate
// Readonly system registers: writing to them gives an error
msr pmbidr_el1, x0
msr pmsidr_el1, x0
// ERROR: :[[@LINE-2]]:7: error: expected writable system register or pstate
// ERROR: :[[@LINE-2]]:7: error: expected writable system register or pstate
// NO_SPE: :[[@LINE-4]]:7: error: expected writable system register or pstate
// NO_SPE: :[[@LINE-4]]:7: error: expected writable system register or pstate
mrs x0, pmblimitr_el1
mrs x0, pmbptr_el1
mrs x0, pmbsr_el1
mrs x0, pmbidr_el1
mrs x0, pmscr_el2
mrs x0, pmscr_el12
mrs x0, pmscr_el1
mrs x0, pmsicr_el1
mrs x0, pmsirr_el1
mrs x0, pmsfcr_el1
mrs x0, pmsevfr_el1
mrs x0, pmslatfr_el1
mrs x0, pmsidr_el1
// CHECK: mrs x0, PMBLIMITR_EL1 // encoding: [0x00,0x9a,0x38,0xd5]
// CHECK: mrs x0, PMBPTR_EL1 // encoding: [0x20,0x9a,0x38,0xd5]
// CHECK: mrs x0, PMBSR_EL1 // encoding: [0x60,0x9a,0x38,0xd5]
// CHECK: mrs x0, PMBIDR_EL1 // encoding: [0xe0,0x9a,0x38,0xd5]
// CHECK: mrs x0, PMSCR_EL2 // encoding: [0x00,0x99,0x3c,0xd5]
// CHECK: mrs x0, PMSCR_EL12 // encoding: [0x00,0x99,0x3d,0xd5]
// CHECK: mrs x0, PMSCR_EL1 // encoding: [0x00,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSICR_EL1 // encoding: [0x40,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSIRR_EL1 // encoding: [0x60,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSFCR_EL1 // encoding: [0x80,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSEVFR_EL1 // encoding: [0xa0,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSLATFR_EL1 // encoding: [0xc0,0x99,0x38,0xd5]
// CHECK: mrs x0, PMSIDR_EL1 // encoding: [0xe0,0x99,0x38,0xd5]
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register
// NO_SPE: error: expected readable system register