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Differential D36306

[ARM] Fix assembly and disassembly for VMRS/VMSR
ClosedPublic

Authored by avieira on Aug 4 2017, 4:57 AM.

Details

Reviewers
rengolin
t.p.northover
Commits
rG640527f7f13b: [ARM] Fix assembly and disassembly for VMRS/VMSR
rG7dffb9bfa608: [ARM] Fix assembly and disassembly for VMRS/VMSR
rL313979: [ARM] Fix assembly and disassembly for VMRS/VMSR
rL310243: [ARM] Fix assembly and disassembly for VMRS/VMSR
Summary

This patch addresses two issues with assembly and disassembly for VMRS/VMSR:

  1. currently VMRS/VMSR instructions accessing fpsid, mvfr{0-2} and fpexc, are accepted for non ARMv8-A targets.
  1. all VMRS/VMSR instructions accept writing/reading to PC and SP, when only ARMv7-A and ARMv8-A should be allowed to write/read to SP and none to PC.

This patch addresses those issues and adds tests for these cases.

Cheers,
Andre

Diff Detail

Event Timeline

avieira created this revision.Aug 4 2017, 4:57 AM
Herald added subscribers: kristof.beyls, javed.absar, aemerson. · View Herald TranscriptAug 4 2017, 4:57 AM
t.p.northover accepted this revision.Aug 4 2017, 1:48 PM
t.p.northover added a subscriber: t.p.northover.

Looks reasonable to me, though please remember to add llvm-commits as a subscriber next time.

Tim.

This revision is now accepted and ready to land.Aug 4 2017, 1:48 PM
avieira added a subscriber: llvm-commits.Aug 7 2017, 1:03 AM
Closed by commit rL310243: [ARM] Fix assembly and disassembly for VMRS/VMSR (authored by avieira). · Explain WhyAug 7 2017, 1:42 AM
This revision was automatically updated to reflect the committed changes.
avieira reopened this revision.Aug 21 2017, 4:01 AM

Reopening as this was reverted earlier, submitting new version.

This revision is now accepted and ready to land.Aug 21 2017, 4:01 AM
avieira updated this revision to Diff 111945.Aug 21 2017, 4:03 AM

Now only access to MVFR2 requires Armv8, both A and M profiles, all other instructions are available for any Arm architecture.

avieira requested review of this revision.Sep 21 2017, 8:27 AM
avieira edited edge metadata.

The new version of the patch hasnt been reviewed.

t.p.northover accepted this revision.Sep 22 2017, 1:16 AM
Thanks, this new one looks good too.
This revision is now accepted and ready to land.Sep 22 2017, 1:16 AM
Closed by commit rL313979: [ARM] Fix assembly and disassembly for VMRS/VMSR (authored by avieira). · Explain WhySep 22 2017, 5:19 AM
This revision was automatically updated to reflect the committed changes.

Revision Contents

PathSize
lib/
Target/
ARM/
80 lines
AsmParser/
5 lines
Disassembler/
24 lines
test/
MC/
ARM/
4 lines
16 lines
180 lines
Disassembler/
ARM/
60 lines
8 lines
123 lines

Diff 109710

lib/Target/ARM/ARMInstrVFP.td

Context not available.
def FMSTAT : MovFromVFP<0b0001 /* fpscr */, (outs), (ins), def FMSTAT : MovFromVFP<0b0001 /* fpscr */, (outs), (ins),
"vmrs", "\tAPSR_nzcv, fpscr", [(arm_fmstat)]>; "vmrs", "\tAPSR_nzcv, fpscr", [(arm_fmstat)]>;
// Application level FPSCR -> GPR let DecoderMethod = "DecodeForVMRSandVMSR" in {
let hasSideEffects = 1, Uses = [FPSCR] in // Application level FPSCR -> GPR
def VMRS : MovFromVFP<0b0001 /* fpscr */, (outs GPR:$Rt), (ins), let hasSideEffects = 1, Uses = [FPSCR] in
"vmrs", "\t$Rt, fpscr", def VMRS : MovFromVFP<0b0001 /* fpscr */, (outs GPRnopc:$Rt), (ins),
[(set GPR:$Rt, (int_arm_get_fpscr))]>; "vmrs", "\t$Rt, fpscr",
[(set GPRnopc:$Rt, (int_arm_get_fpscr))]>;
// System level FPEXC, FPSID -> GPR
let Uses = [FPSCR] in { // System level FPEXC, FPSID -> GPR
def VMRS_FPEXC : MovFromVFP<0b1000 /* fpexc */, (outs GPR:$Rt), (ins), let Uses = [FPSCR] in {
"vmrs", "\t$Rt, fpexc", []>; let Predicates = [HasV8, HasVFP2] in {
def VMRS_FPSID : MovFromVFP<0b0000 /* fpsid */, (outs GPR:$Rt), (ins), def VMRS_FPEXC : MovFromVFP<0b1000 /* fpexc */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, fpsid", []>; "vmrs", "\t$Rt, fpexc", []>;
def VMRS_MVFR0 : MovFromVFP<0b0111 /* mvfr0 */, (outs GPR:$Rt), (ins), def VMRS_FPSID : MovFromVFP<0b0000 /* fpsid */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, mvfr0", []>; "vmrs", "\t$Rt, fpsid", []>;
def VMRS_MVFR1 : MovFromVFP<0b0110 /* mvfr1 */, (outs GPR:$Rt), (ins), def VMRS_MVFR0 : MovFromVFP<0b0111 /* mvfr0 */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, mvfr1", []>; "vmrs", "\t$Rt, mvfr0", []>;
def VMRS_MVFR2 : MovFromVFP<0b0101 /* mvfr2 */, (outs GPR:$Rt), (ins), def VMRS_MVFR1 : MovFromVFP<0b0110 /* mvfr1 */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, mvfr2", []>, Requires<[HasFPARMv8]>; "vmrs", "\t$Rt, mvfr1", []>;
def VMRS_FPINST : MovFromVFP<0b1001 /* fpinst */, (outs GPR:$Rt), (ins), def VMRS_MVFR2 : MovFromVFP<0b0101 /* mvfr2 */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, fpinst", []>; "vmrs", "\t$Rt, mvfr2", []>;
def VMRS_FPINST2 : MovFromVFP<0b1010 /* fpinst2 */, (outs GPR:$Rt), (ins), }
"vmrs", "\t$Rt, fpinst2", []>; def VMRS_FPINST : MovFromVFP<0b1001 /* fpinst */, (outs GPRnopc:$Rt), (ins),
"vmrs", "\t$Rt, fpinst", []>;
def VMRS_FPINST2 : MovFromVFP<0b1010 /* fpinst2 */, (outs GPRnopc:$Rt),
(ins), "vmrs", "\t$Rt, fpinst2", []>;
}
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
Context not available.
let Inst{4} = 1; let Inst{4} = 1;
} }
let Defs = [FPSCR] in { let DecoderMethod = "DecodeForVMRSandVMSR" in {
// Application level GPR -> FPSCR let Defs = [FPSCR] in {
def VMSR : MovToVFP<0b0001 /* fpscr */, (outs), (ins GPR:$src), // Application level GPR -> FPSCR
"vmsr", "\tfpscr, $src", [(int_arm_set_fpscr GPR:$src)]>; def VMSR : MovToVFP<0b0001 /* fpscr */, (outs), (ins GPRnopc:$src),
// System level GPR -> FPEXC "vmsr", "\tfpscr, $src",
def VMSR_FPEXC : MovToVFP<0b1000 /* fpexc */, (outs), (ins GPR:$src), [(int_arm_set_fpscr GPRnopc:$src)]>;
"vmsr", "\tfpexc, $src", []>; let Predicates = [HasV8, HasVFP2] in {
// System level GPR -> FPSID // System level GPR -> FPEXC
def VMSR_FPSID : MovToVFP<0b0000 /* fpsid */, (outs), (ins GPR:$src), def VMSR_FPEXC : MovToVFP<0b1000 /* fpexc */, (outs), (ins GPRnopc:$src),
"vmsr", "\tfpsid, $src", []>; "vmsr", "\tfpexc, $src", []>;
// System level GPR -> FPSID
def VMSR_FPINST : MovToVFP<0b1001 /* fpinst */, (outs), (ins GPR:$src), def VMSR_FPSID : MovToVFP<0b0000 /* fpsid */, (outs), (ins GPRnopc:$src),
"vmsr", "\tfpsid, $src", []>;
}
def VMSR_FPINST : MovToVFP<0b1001 /* fpinst */, (outs), (ins GPRnopc:$src),
"vmsr", "\tfpinst, $src", []>; "vmsr", "\tfpinst, $src", []>;
def VMSR_FPINST2 : MovToVFP<0b1010 /* fpinst2 */, (outs), (ins GPR:$src), def VMSR_FPINST2 : MovToVFP<0b1010 /* fpinst2 */, (outs), (ins GPRnopc:$src),
"vmsr", "\tfpinst2, $src", []>; "vmsr", "\tfpinst2, $src", []>;
}
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
Context not available.

lib/Target/ARM/AsmParser/ARMAsmParser.cpp

Context not available.
return Match_RequiresV8; return Match_RequiresV8;
} }
// Use of SP for VMRS/VMSR is only allowed in ARM mode.
if ((Inst.getOpcode() == ARM::VMRS || Inst.getOpcode() == ARM::VMSR) &&
Inst.getOperand(0).getReg() == ARM::SP && (isThumb() && !hasV8Ops()))
return Match_InvalidOperand;
for (unsigned I = 0; I < MCID.NumOperands; ++I) for (unsigned I = 0; I < MCID.NumOperands; ++I)
if (MCID.OpInfo[I].RegClass == ARM::rGPRRegClassID) { if (MCID.OpInfo[I].RegClass == ARM::rGPRRegClassID) {
// rGPRRegClass excludes PC, and also excluded SP before ARMv8 // rGPRRegClass excludes PC, and also excluded SP before ARMv8
Context not available.

lib/Target/ARM/Disassembler/ARMDisassembler.cpp

Context not available.
uint64_t Address, const void *Decoder); uint64_t Address, const void *Decoder);
static DecodeStatus DecoderForMRRC2AndMCRR2(MCInst &Inst, unsigned Val, static DecodeStatus DecoderForMRRC2AndMCRR2(MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder); uint64_t Address, const void *Decoder);
static DecodeStatus DecodeForVMRSandVMSR(MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder);
#include "ARMGenDisassemblerTables.inc" #include "ARMGenDisassemblerTables.inc"
Context not available.
return S; return S;
} }
static DecodeStatus DecodeForVMRSandVMSR(MCInst &Inst, unsigned Val,
uint64_t Address,
const void *Decoder) {
const FeatureBitset &featureBits =
((const MCDisassembler *)Decoder)->getSubtargetInfo().getFeatureBits();
DecodeStatus S = MCDisassembler::Success;
unsigned Rt = fieldFromInstruction(Val, 12, 4);
if (featureBits[ARM::ModeThumb] && !featureBits[ARM::HasV8Ops]) {
if (Rt == 13 || Rt == 15)
S = MCDisassembler::SoftFail;
Check(S, DecodeGPRRegisterClass(Inst, Rt, Address, Decoder));
} else
Check(S, DecodeGPRnopcRegisterClass(Inst, Rt, Address, Decoder));
Inst.addOperand(MCOperand::createImm(ARMCC::AL));
Inst.addOperand(MCOperand::createReg(0));
return S;
}
Context not available.

test/MC/ARM/directive-arch_extension-fp.s

Context not available.
.type fp,%function .type fp,%function
fp: fp:
vmrs r0, mvfr2
@ CHECK-V7: error: instruction requires: FPARMv8
vselgt.f32 s0, s0, s0 vselgt.f32 s0, s0, s0
@ CHECK-V7: error: instruction requires: FPARMv8 @ CHECK-V7: error: instruction requires: FPARMv8
Context not available.
.type nofp,%function .type nofp,%function
nofp: nofp:
vmrs r0, mvfr2
@ CHECK: error: instruction requires: FPARMv8
vselgt.f32 s0, s0, s0 vselgt.f32 s0, s0, s0
@ CHECK: error: instruction requires: FPARMv8 @ CHECK: error: instruction requires: FPARMv8
Context not available.

test/MC/ARM/simple-fp-encoding.s

Context not available.
vmrs APSR_nzcv, fpscr vmrs APSR_nzcv, fpscr
vmrs apsr_nzcv, fpscr vmrs apsr_nzcv, fpscr
fmstat fmstat
vmrs r2, fpsid
vmrs r3, FPSID
vmrs r4, mvfr0
vmrs r5, MVFR1
@ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee] @ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
@ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee] @ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
@ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee] @ CHECK: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
@ CHECK: vmrs r2, fpsid @ encoding: [0x10,0x2a,0xf0,0xee]
@ CHECK: vmrs r3, fpsid @ encoding: [0x10,0x3a,0xf0,0xee]
@ CHECK: vmrs r4, mvfr0 @ encoding: [0x10,0x4a,0xf7,0xee]
@ CHECK: vmrs r5, mvfr1 @ encoding: [0x10,0x5a,0xf6,0xee]
@ CHECK: vnegne.f64 d16, d16 @ encoding: [0x60,0x0b,0xf1,0x1e] @ CHECK: vnegne.f64 d16, d16 @ encoding: [0x60,0x0b,0xf1,0x1e]
vnegne.f64 d16, d16 vnegne.f64 d16, d16
Context not available.
@ CHECK: vmrs r0, fpscr @ encoding: [0x10,0x0a,0xf1,0xee] @ CHECK: vmrs r0, fpscr @ encoding: [0x10,0x0a,0xf1,0xee]
vmrs r0, fpscr vmrs r0, fpscr
@ CHECK: vmrs r0, fpexc @ encoding: [0x10,0x0a,0xf8,0xee]
vmrs r0, fpexc
@ CHECK: vmrs r0, fpsid @ encoding: [0x10,0x0a,0xf0,0xee]
vmrs r0, fpsid
@ CHECK: vmrs r1, fpinst @ encoding: [0x10,0x1a,0xf9,0xee] @ CHECK: vmrs r1, fpinst @ encoding: [0x10,0x1a,0xf9,0xee]
vmrs r1, fpinst vmrs r1, fpinst
@ CHECK: vmrs r8, fpinst2 @ encoding: [0x10,0x8a,0xfa,0xee] @ CHECK: vmrs r8, fpinst2 @ encoding: [0x10,0x8a,0xfa,0xee]
Context not available.
@ CHECK: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee] @ CHECK: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee]
vmsr fpscr, r0 vmsr fpscr, r0
@ CHECK: vmsr fpexc, r0 @ encoding: [0x10,0x0a,0xe8,0xee]
vmsr fpexc, r0
@ CHECK: vmsr fpsid, r0 @ encoding: [0x10,0x0a,0xe0,0xee]
vmsr fpsid, r0
@ CHECK: vmsr fpinst, r3 @ encoding: [0x10,0x3a,0xe9,0xee] @ CHECK: vmsr fpinst, r3 @ encoding: [0x10,0x3a,0xe9,0xee]
vmsr fpinst, r3 vmsr fpinst, r3
@ CHECK: vmsr fpinst2, r4 @ encoding: [0x10,0x4a,0xea,0xee] @ CHECK: vmsr fpinst2, r4 @ encoding: [0x10,0x4a,0xea,0xee]
Context not available.

test/MC/ARM/vmrs_vmsr.s

  • This file was added.
// RUN: not llvm-mc -triple=armv7a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V7A-ARM %s
// RUN: FileCheck --check-prefix=ERROR-V7A-ARM < %t %s
// RUN: not llvm-mc -triple=thumbv7a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V7A-THUMB %s
// RUN: FileCheck --check-prefix=ERROR-V7A-THUMB < %t %s
// RUN: not llvm-mc -triple=thumbv7m-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V7M %s
// RUN: FileCheck --check-prefix=ERROR-V7M < %t %s
// RUN: not llvm-mc -triple=armv8a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V8A-ARM %s
// RUN: FileCheck --check-prefix=ERROR-V8A-ARM < %t %s
// RUN: not llvm-mc -triple=thumbv8a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V8A-THUMB %s
// RUN: FileCheck --check-prefix=ERROR-V8A-THUMB < %t %s
// RUN: not llvm-mc -triple=thumbv8m.main-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
// RUN: | FileCheck --check-prefix=CHECK-V8M %s
// RUN: FileCheck --check-prefix=ERROR-V8M < %t %s
// RUN: not llvm-mc -triple=thumbv7m-arm-none-eabi -show-encoding < %s 2>%t
// RUN: FileCheck --check-prefix=ERROR-NOVFP < %t %s
vmrs APSR_nzcv, fpscr
vmrs apsr_nzcv, fpscr
fmstat
vmrs r10, fpscr
vmrs r2, fpsid
vmrs r3, FPSID
vmrs r4, mvfr0
vmrs r5, MVFR1
vmrs r6, mvfr2
vmrs sp, fpscr
vmrs pc, fpscr
// CHECK-V7A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V7A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V7A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V7A-ARM: vmrs r10, fpscr @ encoding: [0x10,0xaa,0xf1,0xee]
// ERROR-V7A-ARM: instruction requires: armv8
// ERROR-V7A-ARM: instruction requires: armv8
// ERROR-V7A-ARM: instruction requires: armv8
// ERROR-V7A-ARM: instruction requires: armv8
// ERROR-V7A-ARM: instruction requires: armv8
// CHECK-V7A-ARM: vmrs sp, fpscr @ encoding: [0x10,0xda,0xf1,0xee]
// ERROR-V7A-ARM: invalid operand for instruction
// CHECK-V7A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7A-THUMB: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: invalid operand for instruction
// ERROR-V7A-THUMB: invalid operand for instruction
// CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V7M: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: invalid operand for instruction
// ERROR-V7M: invalid operand for instruction
// CHECK-V8A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V8A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V8A-ARM: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
// CHECK-V8A-ARM: vmrs r10, fpscr @ encoding: [0x10,0xaa,0xf1,0xee]
// CHECK-V8A-ARM: vmrs r2, fpsid @ encoding: [0x10,0x2a,0xf0,0xee]
// CHECK-V8A-ARM: vmrs r3, fpsid @ encoding: [0x10,0x3a,0xf0,0xee]
// CHECK-V8A-ARM: vmrs r4, mvfr0 @ encoding: [0x10,0x4a,0xf7,0xee]
// CHECK-V8A-ARM: vmrs r5, mvfr1 @ encoding: [0x10,0x5a,0xf6,0xee]
// CHECK-V8A-ARM: vmrs r6, mvfr2 @ encoding: [0x10,0x6a,0xf5,0xee]
// CHECK-V8A-ARM: vmrs sp, fpscr @ encoding: [0x10,0xda,0xf1,0xee]
// ERROR-V8A-ARM: invalid operand for instruction
// CHECK-V8A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8A-THUMB: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8A-THUMB: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
// CHECK-V8A-THUMB: vmrs r2, fpsid @ encoding: [0xf0,0xee,0x10,0x2a]
// CHECK-V8A-THUMB: vmrs r3, fpsid @ encoding: [0xf0,0xee,0x10,0x3a]
// CHECK-V8A-THUMB: vmrs r4, mvfr0 @ encoding: [0xf7,0xee,0x10,0x4a]
// CHECK-V8A-THUMB: vmrs r5, mvfr1 @ encoding: [0xf6,0xee,0x10,0x5a]
// CHECK-V8A-THUMB: vmrs r6, mvfr2 @ encoding: [0xf5,0xee,0x10,0x6a]
// CHECK-V8A-THUMB: vmrs sp, fpscr @ encoding: [0xf1,0xee,0x10,0xda]
// ERROR-V8A-THUMB: invalid operand for instruction
// CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
// CHECK-V8M: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: invalid operand for instruction
// ERROR-V8M: invalid operand for instruction
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: invalid operand for instruction
vmsr fpscr, APSR_nzcv
vmsr fpscr, r0
vmsr fpexc, r1
vmsr fpsid, r2
vmsr fpscr, r10
vmsr fpscr, sp
vmsr fpscr, pc
// ERROR-V7A-ARM: invalid operand for instruction
// CHECK-V7A-ARM: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee]
// ERROR-V7A-ARM: instruction requires: armv8
// ERROR-V7A-ARM: instruction requires: armv8
// CHECK-V7A-ARM: vmsr fpscr, r10 @ encoding: [0x10,0xaa,0xe1,0xee]
// CHECK-V7A-ARM: vmsr fpscr, sp @ encoding: [0x10,0xda,0xe1,0xee]
// ERROR-V7A-ARM: invalid operand for instruction
// ERROR-V7A-THUMB: invalid operand for instruction
// CHECK-V7A-THUMB: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
// ERROR-V7A-THUMB: instruction requires: armv8
// ERROR-V7A-THUMB: instruction requires: armv8
// CHECK-V7A-THUMB: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
// ERROR-V7A-THUMB: invalid operand for instruction
// ERROR-V7A-THUMB: invalid operand for instruction
// ERROR-V7M: invalid operand for instruction
// CHECK-V7M: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
// ERROR-V7M: instruction requires: armv8
// ERROR-V7M: instruction requires: armv8
// CHECK-V7M: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
// ERROR-V7M: invalid operand for instruction
// ERROR-V7M: invalid operand for instruction
// ERROR-V8A-ARM: invalid operand for instruction
// CHECK-V8A-ARM: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee]
// CHECK-V8A-ARM: vmsr fpexc, r1 @ encoding: [0x10,0x1a,0xe8,0xee]
// CHECK-V8A-ARM: vmsr fpsid, r2 @ encoding: [0x10,0x2a,0xe0,0xee]
// CHECK-V8A-ARM: vmsr fpscr, r10 @ encoding: [0x10,0xaa,0xe1,0xee]
// CHECK-V8A-ARM: vmsr fpscr, sp @ encoding: [0x10,0xda,0xe1,0xee]
// ERROR-V8A-ARM: invalid operand for instruction
// ERROR-V8A-THUMB: invalid operand for instruction
// CHECK-V8A-THUMB: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
// CHECK-V8A-THUMB: vmsr fpexc, r1 @ encoding: [0xe8,0xee,0x10,0x1a]
// CHECK-V8A-THUMB: vmsr fpsid, r2 @ encoding: [0xe0,0xee,0x10,0x2a]
// CHECK-V8A-THUMB: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
// CHECK-V8A-THUMB: vmsr fpscr, sp @ encoding: [0xe1,0xee,0x10,0xda]
// ERROR-V8A-THUMB: invalid operand for instruction
// ERROR-V8M: invalid operand for instruction
// CHECK-V8M: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
// ERROR-V8M: instruction requires: armv8
// ERROR-V8M: instruction requires: armv8
// CHECK-V8M: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
// ERROR-V8M: invalid operand for instruction
// ERROR-V8M: invalid operand for instruction
// ERROR-NOVFP: invalid operand for instruction
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: armv8
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: instruction requires: VFP2
// ERROR-NOVFP: invalid operand for instruction

test/MC/Disassembler/ARM/arm-vmrs_vmsr.txt

  • This file was added.
# RUN: not llvm-mc -disassemble -triple=armv7a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V7A %s
# RUN: FileCheck --check-prefix=ERROR-V7A < %t %s
# RUN: llvm-mc -disassemble -triple=armv8a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V8A %s
# RUN: FileCheck --check-prefix=ERROR-V8A < %t %s
[0x10,0xfa,0xf1,0xee]
[0x10,0xfa,0xf1,0xee]
[0x10,0xfa,0xf1,0xee]
[0x10,0xaa,0xf1,0xee]
[0x10,0x2a,0xf0,0xee]
[0x10,0x3a,0xf0,0xee]
[0x10,0x4a,0xf7,0xee]
[0x10,0x5a,0xf6,0xee]
[0x10,0x6a,0xf5,0xee]
[0x10,0xda,0xf1,0xee]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V7A: vmrs r10, fpscr @ encoding: [0x10,0xaa,0xf1,0xee]
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# CHECK-V7A: vmrs sp, fpscr @ encoding: [0x10,0xda,0xf1,0xee]
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0x10,0xfa,0xf1,0xee]
# CHECK-V8A: vmrs r10, fpscr @ encoding: [0x10,0xaa,0xf1,0xee]
# CHECK-V8A: vmrs r2, fpsid @ encoding: [0x10,0x2a,0xf0,0xee]
# CHECK-V8A: vmrs r3, fpsid @ encoding: [0x10,0x3a,0xf0,0xee]
# CHECK-V8A: vmrs r4, mvfr0 @ encoding: [0x10,0x4a,0xf7,0xee]
# CHECK-V8A: vmrs r5, mvfr1 @ encoding: [0x10,0x5a,0xf6,0xee]
# CHECK-V8A: vmrs r6, mvfr2 @ encoding: [0x10,0x6a,0xf5,0xee]
# CHECK-V8A: vmrs sp, fpscr @ encoding: [0x10,0xda,0xf1,0xee]
[0x10,0xfa,0xe1,0xee]
[0x10,0x0a,0xe1,0xee]
[0x10,0x1a,0xe8,0xee]
[0x10,0x2a,0xe0,0xee]
[0x10,0xaa,0xe1,0xee]
[0x10,0xda,0xe1,0xee]
# ERROR-V7A: potentially undefined instruction encoding
# CHECK-V7A: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee]
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# CHECK-V7A: vmsr fpscr, r10 @ encoding: [0x10,0xaa,0xe1,0xee]
# CHECK-V7A: vmsr fpscr, sp @ encoding: [0x10,0xda,0xe1,0xee]
# ERROR-V8A: potentially undefined instruction encoding
# CHECK-V8A: vmsr fpscr, r0 @ encoding: [0x10,0x0a,0xe1,0xee]
# CHECK-V8A: vmsr fpexc, r1 @ encoding: [0x10,0x1a,0xe8,0xee]
# CHECK-V8A: vmsr fpsid, r2 @ encoding: [0x10,0x2a,0xe0,0xee]
# CHECK-V8A: vmsr fpscr, r10 @ encoding: [0x10,0xaa,0xe1,0xee]
# CHECK-V8A: vmsr fpscr, sp @ encoding: [0x10,0xda,0xe1,0xee]

test/MC/Disassembler/ARM/fp-encoding.txt

Context not available.
0x10 0x0a 0xf1 0xee 0x10 0x0a 0xf1 0xee
# CHECK: vmrs r0, fpscr # CHECK: vmrs r0, fpscr
0x10 0x0a 0xf8 0xee
# CHECK: vmrs r0, fpexc
0x10 0x0a 0xf0 0xee
# CHECK: vmrs r0, fpsid
0x10 0x1a 0xf9 0xee 0x10 0x1a 0xf9 0xee
# CHECK: vmrs r1, fpinst # CHECK: vmrs r1, fpinst
0x10 0x8a 0xfa 0xee 0x10 0x8a 0xfa 0xee
Context not available.
0x10 0x0a 0xe1 0xee 0x10 0x0a 0xe1 0xee
# CHECK: vmsr fpscr, r0 # CHECK: vmsr fpscr, r0
0x10 0x0a 0xe8 0xee
# CHECK: vmsr fpexc, r0
0x10 0x0a 0xe0 0xee
# CHECK: vmsr fpsid, r0
0x10 0x3a 0xe9 0xee 0x10 0x3a 0xe9 0xee
# CHECK: vmsr fpinst, r3 # CHECK: vmsr fpinst, r3
0x10 0x4a 0xea 0xee 0x10 0x4a 0xea 0xee
Context not available.

test/MC/Disassembler/ARM/thumb-vmrs_vmsr.txt

  • This file was added.
# RUN: not llvm-mc -disassemble -triple=thumbv7a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V7A %s
# RUN: FileCheck --check-prefix=ERROR-V7A < %t %s
# RUN: not llvm-mc -disassemble -triple=thumbv7m-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V7M %s
# RUN: FileCheck --check-prefix=ERROR-V7M < %t %s
# RUN: llvm-mc -disassemble -triple=thumbv8a-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V8A %s
# RUN: FileCheck --check-prefix=ERROR-V8A < %t %s
# RUN: not llvm-mc -disassemble -triple=thumbv8m.main-arm-none-eabi -mattr=+vfp2 -show-encoding < %s 2>%t \
# RUN: | FileCheck --check-prefix=CHECK-V8M %s
# RUN: FileCheck --check-prefix=ERROR-V8M < %t %s
# RUN: not llvm-mc -disassemble -triple=thumbv7m-arm-none-eabi -show-encoding < %s 2>%t
# RUN: FileCheck --check-prefix=ERROR-NOVFP < %t %s
[0xf1,0xee,0x10,0xfa]
[0xf1,0xee,0x10,0xfa]
[0xf1,0xee,0x10,0xfa]
[0xf1,0xee,0x10,0xaa]
[0xf0,0xee,0x10,0x2a]
[0xf0,0xee,0x10,0x3a]
[0xf7,0xee,0x10,0x4a]
[0xf6,0xee,0x10,0x5a]
[0xf5,0xee,0x10,0x6a]
[0xf1,0xee,0x10,0xda]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7A: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: potentially undefined instruction encoding
# CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V7M: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: potentially undefined instruction encoding
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8A: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8A: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
# CHECK-V8A: vmrs r2, fpsid @ encoding: [0xf0,0xee,0x10,0x2a]
# CHECK-V8A: vmrs r3, fpsid @ encoding: [0xf0,0xee,0x10,0x3a]
# CHECK-V8A: vmrs r4, mvfr0 @ encoding: [0xf7,0xee,0x10,0x4a]
# CHECK-V8A: vmrs r5, mvfr1 @ encoding: [0xf6,0xee,0x10,0x5a]
# CHECK-V8A: vmrs r6, mvfr2 @ encoding: [0xf5,0xee,0x10,0x6a]
# CHECK-V8A: vmrs sp, fpscr @ encoding: [0xf1,0xee,0x10,0xda]
# CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8M: vmrs APSR_nzcv, fpscr @ encoding: [0xf1,0xee,0x10,0xfa]
# CHECK-V8M: vmrs r10, fpscr @ encoding: [0xf1,0xee,0x10,0xaa]
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: potentially undefined instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
[0xe1,0xee,0x10,0xfa]
[0xe1,0xee,0x10,0x0a]
[0xe8,0xee,0x10,0x1a]
[0xe0,0xee,0x10,0x2a]
[0xe1,0xee,0x10,0xaa]
[0xe1,0xee,0x10,0xda]
# ERROR-V7A: potentially undefined instruction encoding
# CHECK-V7A: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
# ERROR-V7A: invalid instruction encoding
# ERROR-V7A: invalid instruction encoding
# CHECK-V7A: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
# ERROR-V7A: potentially undefined instruction encoding
# ERROR-V7M: potentially undefined instruction encoding
# CHECK-V7M: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
# ERROR-V7M: invalid instruction encoding
# ERROR-V7M: invalid instruction encoding
# CHECK-V7M: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
# ERROR-V7M: potentially undefined instruction encoding
# ERROR-V8A: potentially undefined instruction encoding
# CHECK-V8A: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
# CHECK-V8A: vmsr fpexc, r1 @ encoding: [0xe8,0xee,0x10,0x1a]
# CHECK-V8A: vmsr fpsid, r2 @ encoding: [0xe0,0xee,0x10,0x2a]
# CHECK-V8A: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
# CHECK-V8A: vmsr fpscr, sp @ encoding: [0xe1,0xee,0x10,0xda]
# ERROR-V8M: potentially undefined instruction encoding
# CHECK-V8M: vmsr fpscr, r0 @ encoding: [0xe1,0xee,0x10,0x0a]
# ERROR-V8M: invalid instruction encoding
# ERROR-V8M: invalid instruction encoding
# CHECK-V8M: vmsr fpscr, r10 @ encoding: [0xe1,0xee,0x10,0xaa]
# ERROR-V8M: potentially undefined instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding
# ERROR-NOVFP: invalid instruction encoding