diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc/Disassembler')
| -rw-r--r-- | contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp | 121 |
1 files changed, 120 insertions, 1 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp b/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp index 51751ec..1dea379 100644 --- a/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp +++ b/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp @@ -14,7 +14,7 @@ #include "Sparc.h" #include "SparcRegisterInfo.h" #include "SparcSubtarget.h" -#include "llvm/MC/MCDisassembler.h" +#include "llvm/MC/MCDisassembler/MCDisassembler.h" #include "llvm/MC/MCFixedLenDisassembler.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCContext.h" @@ -130,6 +130,25 @@ static const uint16_t IntPairDecoderTable[] = { SP::I0_I1, SP::I2_I3, SP::I4_I5, SP::I6_I7, }; +static const unsigned CPRegDecoderTable[] = { + SP::C0, SP::C1, SP::C2, SP::C3, + SP::C4, SP::C5, SP::C6, SP::C7, + SP::C8, SP::C9, SP::C10, SP::C11, + SP::C12, SP::C13, SP::C14, SP::C15, + SP::C16, SP::C17, SP::C18, SP::C19, + SP::C20, SP::C21, SP::C22, SP::C23, + SP::C24, SP::C25, SP::C26, SP::C27, + SP::C28, SP::C29, SP::C30, SP::C31 +}; + + +static const uint16_t CPPairDecoderTable[] = { + SP::C0_C1, SP::C2_C3, SP::C4_C5, SP::C6_C7, + SP::C8_C9, SP::C10_C11, SP::C12_C13, SP::C14_C15, + SP::C16_C17, SP::C18_C19, SP::C20_C21, SP::C22_C23, + SP::C24_C25, SP::C26_C27, SP::C28_C29, SP::C30_C31 +}; + static DecodeStatus DecodeIntRegsRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, @@ -191,6 +210,17 @@ static DecodeStatus DecodeQFPRegsRegisterClass(MCInst &Inst, return MCDisassembler::Success; } +static DecodeStatus DecodeCPRegsRegisterClass(MCInst &Inst, + unsigned RegNo, + uint64_t Address, + const void *Decoder) { + if (RegNo > 31) + return MCDisassembler::Fail; + unsigned Reg = CPRegDecoderTable[RegNo]; + Inst.addOperand(MCOperand::createReg(Reg)); + return MCDisassembler::Success; +} + static DecodeStatus DecodeFCCRegsRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder) { @@ -233,6 +263,16 @@ static DecodeStatus DecodeIntPairRegisterClass(MCInst &Inst, unsigned RegNo, return S; } +static DecodeStatus DecodeCPPairRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Address, const void *Decoder) { + if (RegNo > 31) + return MCDisassembler::Fail; + + unsigned RegisterPair = CPPairDecoderTable[RegNo/2]; + Inst.addOperand(MCOperand::createReg(RegisterPair)); + return MCDisassembler::Success; +} + static DecodeStatus DecodeLoadInt(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeLoadIntPair(MCInst &Inst, unsigned insn, uint64_t Address, @@ -243,6 +283,10 @@ static DecodeStatus DecodeLoadDFP(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeLoadQFP(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeLoadCP(MCInst &Inst, unsigned insn, uint64_t Address, + const void *Decoder); +static DecodeStatus DecodeLoadCPPair(MCInst &Inst, unsigned insn, uint64_t Address, + const void *Decoder); static DecodeStatus DecodeStoreInt(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeStoreIntPair(MCInst &Inst, unsigned insn, @@ -253,6 +297,10 @@ static DecodeStatus DecodeStoreDFP(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeStoreQFP(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeStoreCP(MCInst &Inst, unsigned insn, + uint64_t Address, const void *Decoder); +static DecodeStatus DecodeStoreCPPair(MCInst &Inst, unsigned insn, + uint64_t Address, const void *Decoder); static DecodeStatus DecodeCall(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeSIMM13(MCInst &Inst, unsigned insn, @@ -263,6 +311,8 @@ static DecodeStatus DecodeReturn(MCInst &MI, unsigned insn, uint64_t Address, const void *Decoder); static DecodeStatus DecodeSWAP(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeTRAP(MCInst &Inst, unsigned insn, uint64_t Address, + const void *Decoder); #include "SparcGenDisassemblerTables.inc" @@ -298,6 +348,18 @@ DecodeStatus SparcDisassembler::getInstruction(MCInst &Instr, uint64_t &Size, return MCDisassembler::Fail; // Calling the auto-generated decoder function. + + if (STI.getFeatureBits()[Sparc::FeatureV9]) + { + Result = decodeInstruction(DecoderTableSparcV932, Instr, Insn, Address, this, STI); + } + else + { + Result = decodeInstruction(DecoderTableSparcV832, Instr, Insn, Address, this, STI); + } + if (Result != MCDisassembler::Fail) + return Result; + Result = decodeInstruction(DecoderTableSparc32, Instr, Insn, Address, this, STI); @@ -390,6 +452,18 @@ static DecodeStatus DecodeLoadQFP(MCInst &Inst, unsigned insn, uint64_t Address, DecodeQFPRegsRegisterClass); } +static DecodeStatus DecodeLoadCP(MCInst &Inst, unsigned insn, uint64_t Address, + const void *Decoder) { + return DecodeMem(Inst, insn, Address, Decoder, true, + DecodeCPRegsRegisterClass); +} + +static DecodeStatus DecodeLoadCPPair(MCInst &Inst, unsigned insn, uint64_t Address, + const void *Decoder) { + return DecodeMem(Inst, insn, Address, Decoder, true, + DecodeCPPairRegisterClass); +} + static DecodeStatus DecodeStoreInt(MCInst &Inst, unsigned insn, uint64_t Address, const void *Decoder) { return DecodeMem(Inst, insn, Address, Decoder, false, @@ -420,6 +494,18 @@ static DecodeStatus DecodeStoreQFP(MCInst &Inst, unsigned insn, DecodeQFPRegsRegisterClass); } +static DecodeStatus DecodeStoreCP(MCInst &Inst, unsigned insn, + uint64_t Address, const void *Decoder) { + return DecodeMem(Inst, insn, Address, Decoder, false, + DecodeCPRegsRegisterClass); +} + +static DecodeStatus DecodeStoreCPPair(MCInst &Inst, unsigned insn, + uint64_t Address, const void *Decoder) { + return DecodeMem(Inst, insn, Address, Decoder, false, + DecodeCPPairRegisterClass); +} + static bool tryAddingSymbolicOperand(int64_t Value, bool isBranch, uint64_t Address, uint64_t Offset, uint64_t Width, MCInst &MI, @@ -547,3 +633,36 @@ static DecodeStatus DecodeSWAP(MCInst &MI, unsigned insn, uint64_t Address, return MCDisassembler::Success; } + +static DecodeStatus DecodeTRAP(MCInst &MI, unsigned insn, uint64_t Address, + const void *Decoder) { + + unsigned rs1 = fieldFromInstruction(insn, 14, 5); + unsigned isImm = fieldFromInstruction(insn, 13, 1); + unsigned cc =fieldFromInstruction(insn, 25, 4); + unsigned rs2 = 0; + unsigned imm7 = 0; + if (isImm) + imm7 = fieldFromInstruction(insn, 0, 7); + else + rs2 = fieldFromInstruction(insn, 0, 5); + + // Decode RS1. + DecodeStatus status = DecodeIntRegsRegisterClass(MI, rs1, Address, Decoder); + if (status != MCDisassembler::Success) + return status; + + // Decode RS1 | IMM7. + if (isImm) + MI.addOperand(MCOperand::createImm(imm7)); + else { + status = DecodeIntRegsRegisterClass(MI, rs2, Address, Decoder); + if (status != MCDisassembler::Success) + return status; + } + + // Decode CC + MI.addOperand(MCOperand::createImm(cc)); + + return MCDisassembler::Success; +} |
