From 5f6f60d942bc81e034313dc1925bf07d7aa7095d Mon Sep 17 00:00:00 2001 From: Vladimir Sukharev Date: Tue, 2 Jun 2015 10:58:41 +0000 Subject: [AArch64] Add v8.1a atomic instructions Patch by: Tom Coxon Reviewers: t.p.northover Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8501 llvm-svn: 238818 --- .../AArch64/Disassembler/AArch64Disassembler.cpp | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp') diff --git a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp index a1ed703d1bf..359c2e734e2 100644 --- a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp +++ b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp @@ -169,6 +169,14 @@ static DecodeStatus DecodeVecShiftL16Imm(llvm::MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); static DecodeStatus DecodeVecShiftL8Imm(llvm::MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); +static DecodeStatus DecodeWSeqPairsClassRegisterClass(MCInst &Inst, + unsigned RegNo, + uint64_t Addr, + const void *Decoder); +static DecodeStatus DecodeXSeqPairsClassRegisterClass(MCInst &Inst, + unsigned RegNo, + uint64_t Addr, + const void *Decoder); static bool Check(DecodeStatus &Out, DecodeStatus In) { switch (In) { @@ -1543,3 +1551,35 @@ static DecodeStatus DecodeTestAndBranch(llvm::MCInst &Inst, uint32_t insn, return Success; } + +static DecodeStatus DecodeGPRSeqPairsClassRegisterClass(MCInst &Inst, + unsigned RegClassID, + unsigned RegNo, + uint64_t Addr, + const void *Decoder) { + // Register number must be even (see CASP instruction) + if (RegNo & 0x1) + return Fail; + + unsigned Register = AArch64MCRegisterClasses[RegClassID].getRegister(RegNo); + Inst.addOperand(MCOperand::createReg(Register)); + return Success; +} + +static DecodeStatus DecodeWSeqPairsClassRegisterClass(MCInst &Inst, + unsigned RegNo, + uint64_t Addr, + const void *Decoder) { + return DecodeGPRSeqPairsClassRegisterClass(Inst, + AArch64::WSeqPairsClassRegClassID, + RegNo, Addr, Decoder); +} + +static DecodeStatus DecodeXSeqPairsClassRegisterClass(MCInst &Inst, + unsigned RegNo, + uint64_t Addr, + const void *Decoder) { + return DecodeGPRSeqPairsClassRegisterClass(Inst, + AArch64::XSeqPairsClassRegClassID, + RegNo, Addr, Decoder); +} -- cgit v1.2.3