diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp index 87b2d5096dd..f522ca59a9a 100644 --- a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp +++ b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp @@ -626,35 +626,19 @@ static DecodeStatus DecodeMemExtend(llvm::MCInst &Inst, unsigned Imm, static DecodeStatus DecodeMRSSystemRegister(llvm::MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder) { - const AArch64Disassembler *Dis = - static_cast<const AArch64Disassembler *>(Decoder); - const MCSubtargetInfo &STI = Dis->getSubtargetInfo(); - - Imm |= 0x8000; Inst.addOperand(MCOperand::CreateImm(Imm)); - bool ValidNamed; - (void)AArch64SysReg::MRSMapper(STI.getFeatureBits()) - .toString(Imm, ValidNamed); - - return ValidNamed ? Success : Fail; + // Every system register in the encoding space is valid with the syntax + // S<op0>_<op1>_<Cn>_<Cm>_<op2>, so decoding system registers always succeeds. + return Success; } static DecodeStatus DecodeMSRSystemRegister(llvm::MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder) { - const AArch64Disassembler *Dis = - static_cast<const AArch64Disassembler *>(Decoder); - const MCSubtargetInfo &STI = Dis->getSubtargetInfo(); - - Imm |= 0x8000; Inst.addOperand(MCOperand::CreateImm(Imm)); - bool ValidNamed; - (void)AArch64SysReg::MSRMapper(STI.getFeatureBits()) - .toString(Imm, ValidNamed); - - return ValidNamed ? Success : Fail; + return Success; } static DecodeStatus DecodeFMOVLaneInstruction(llvm::MCInst &Inst, unsigned Insn, |
