diff options
Diffstat (limited to 'gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp')
| -rw-r--r-- | gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp | 291 |
1 files changed, 184 insertions, 107 deletions
diff --git a/gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp b/gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp index 7870dce5c9c..30438a159fb 100644 --- a/gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp +++ b/gnu/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp @@ -1,4 +1,4 @@ -//===- AArch64Disassembler.cpp - Disassembler for AArch64 -------*- C++ -*-===// +//===- AArch64Disassembler.cpp - Disassembler for AArch64 -----------------===// // // The LLVM Compiler Infrastructure // @@ -14,160 +14,171 @@ #include "AArch64ExternalSymbolizer.h" #include "AArch64Subtarget.h" #include "MCTargetDesc/AArch64AddressingModes.h" +#include "MCTargetDesc/AArch64MCTargetDesc.h" #include "Utils/AArch64BaseInfo.h" +#include "llvm-c/Disassembler.h" +#include "llvm/MC/MCDisassembler/MCRelocationInfo.h" #include "llvm/MC/MCFixedLenDisassembler.h" #include "llvm/MC/MCInst.h" +#include "llvm/Support/Compiler.h" #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/TargetRegistry.h" +#include <algorithm> +#include <memory> using namespace llvm; #define DEBUG_TYPE "aarch64-disassembler" // Pull DecodeStatus and its enum values into the global namespace. -typedef llvm::MCDisassembler::DecodeStatus DecodeStatus; +using DecodeStatus = MCDisassembler::DecodeStatus; // Forward declare these because the autogenerated code will reference them. // Definitions are further down. -static DecodeStatus DecodeFPR128RegisterClass(llvm::MCInst &Inst, +static DecodeStatus DecodeFPR128RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFPR128_loRegisterClass(llvm::MCInst &Inst, +static DecodeStatus DecodeFPR128_loRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFPR64RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeFPR64RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFPR32RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeFPR32RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFPR16RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeFPR16RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFPR8RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeFPR8RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeGPR64RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeGPR64RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeGPR64spRegisterClass(llvm::MCInst &Inst, +static DecodeStatus DecodeGPR64spRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeGPR32RegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeGPR32RegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeGPR32spRegisterClass(llvm::MCInst &Inst, +static DecodeStatus DecodeGPR32spRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeQQRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeQQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeQQQRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeQQQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeQQQQRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeDDRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeDDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeDDDRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeDDDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo, +static DecodeStatus DecodeDDDDRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeZPRRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Address, + const void *Decode); +static DecodeStatus DecodePPRRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Address, + const void *Decode); +LLVM_ATTRIBUTE_UNUSED static DecodeStatus +DecodePPR_3bRegisterClass(llvm::MCInst &Inst, unsigned RegNo, uint64_t Address, + const void *Decode); -static DecodeStatus DecodeFixedPointScaleImm32(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeFixedPointScaleImm32(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFixedPointScaleImm64(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeFixedPointScaleImm64(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodePCRelLabel19(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodePCRelLabel19(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeMemExtend(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMemExtend(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeMRSSystemRegister(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMRSSystemRegister(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeMSRSystemRegister(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMSRSystemRegister(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeThreeAddrSRegInstruction(llvm::MCInst &Inst, - uint32_t insn, +static DecodeStatus DecodeThreeAddrSRegInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeMoveImmInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeMoveImmInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeUnsignedLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, +static DecodeStatus DecodeUnsignedLdStInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeSignedLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Address, +static DecodeStatus DecodeSignedLdStInstruction(MCInst &Inst, uint32_t insn, + uint64_t Address, const void *Decoder); -static DecodeStatus DecodeExclusiveLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, +static DecodeStatus DecodeExclusiveLdStInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodePairLdStInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodePairLdStInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeAddSubERegInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Address, +static DecodeStatus DecodeAddSubERegInstruction(MCInst &Inst, uint32_t insn, + uint64_t Address, const void *Decoder); -static DecodeStatus DecodeLogicalImmInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Address, +static DecodeStatus DecodeLogicalImmInstruction(MCInst &Inst, uint32_t insn, + uint64_t Address, const void *Decoder); -static DecodeStatus DecodeModImmInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeModImmInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeModImmTiedInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Address, +static DecodeStatus DecodeModImmTiedInstruction(MCInst &Inst, uint32_t insn, + uint64_t Address, const void *Decoder); -static DecodeStatus DecodeAdrInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeAdrInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeBaseAddSubImm(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeBaseAddSubImm(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeUnconditionalBranch(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeUnconditionalBranch(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeSystemPStateInstruction(llvm::MCInst &Inst, - uint32_t insn, +static DecodeStatus DecodeSystemPStateInstruction(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeTestAndBranch(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeTestAndBranch(MCInst &Inst, uint32_t insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeFMOVLaneInstruction(llvm::MCInst &Inst, unsigned Insn, +static DecodeStatus DecodeFMOVLaneInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, const void *Decoder); -static DecodeStatus DecodeVecShiftR64Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR64Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR64ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR64ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR32Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR32Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR32ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR32ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR16Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR16Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR16ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR16ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftR8Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR8Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftL64Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL64Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftL32Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL32Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftL16Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL16Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); -static DecodeStatus DecodeVecShiftL8Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL8Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder); static DecodeStatus DecodeWSeqPairsClassRegisterClass(MCInst &Inst, unsigned RegNo, @@ -177,6 +188,9 @@ static DecodeStatus DecodeXSeqPairsClassRegisterClass(MCInst &Inst, unsigned RegNo, uint64_t Addr, const void *Decoder); +template<int Bits> +static DecodeStatus DecodeSImm(llvm::MCInst &Inst, uint64_t Imm, + uint64_t Address, const void *Decoder); static bool Check(DecodeStatus &Out, DecodeStatus In) { switch (In) { @@ -196,9 +210,9 @@ static bool Check(DecodeStatus &Out, DecodeStatus In) { #include "AArch64GenDisassemblerTables.inc" #include "AArch64GenInstrInfo.inc" -#define Success llvm::MCDisassembler::Success -#define Fail llvm::MCDisassembler::Fail -#define SoftFail llvm::MCDisassembler::SoftFail +#define Success MCDisassembler::Success +#define Fail MCDisassembler::Fail +#define SoftFail MCDisassembler::SoftFail static MCDisassembler *createAArch64Disassembler(const Target &T, const MCSubtargetInfo &STI, @@ -232,8 +246,8 @@ createAArch64ExternalSymbolizer(const Triple &TT, LLVMOpInfoCallback GetOpInfo, LLVMSymbolLookupCallback SymbolLookUp, void *DisInfo, MCContext *Ctx, std::unique_ptr<MCRelocationInfo> &&RelInfo) { - return new llvm::AArch64ExternalSymbolizer(*Ctx, move(RelInfo), GetOpInfo, - SymbolLookUp, DisInfo); + return new AArch64ExternalSymbolizer(*Ctx, std::move(RelInfo), GetOpInfo, + SymbolLookUp, DisInfo); } extern "C" void LLVMInitializeAArch64Disassembler() { @@ -431,6 +445,54 @@ static DecodeStatus DecodeGPR32spRegisterClass(MCInst &Inst, unsigned RegNo, Inst.addOperand(MCOperand::createReg(Register)); return Success; } +static const unsigned ZPRDecoderTable[] = { + AArch64::Z0, AArch64::Z1, AArch64::Z2, AArch64::Z3, + AArch64::Z4, AArch64::Z5, AArch64::Z6, AArch64::Z7, + AArch64::Z8, AArch64::Z9, AArch64::Z10, AArch64::Z11, + AArch64::Z12, AArch64::Z13, AArch64::Z14, AArch64::Z15, + AArch64::Z16, AArch64::Z17, AArch64::Z18, AArch64::Z19, + AArch64::Z20, AArch64::Z21, AArch64::Z22, AArch64::Z23, + AArch64::Z24, AArch64::Z25, AArch64::Z26, AArch64::Z27, + AArch64::Z28, AArch64::Z29, AArch64::Z30, AArch64::Z31 +}; + +static DecodeStatus DecodeZPRRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Address, + const void* Decoder) { + if (RegNo > 31) + return Fail; + + unsigned Register = ZPRDecoderTable[RegNo]; + Inst.addOperand(MCOperand::createReg(Register)); + return Success; +} + +static const unsigned PPRDecoderTable[] = { + AArch64::P0, AArch64::P1, AArch64::P2, AArch64::P3, + AArch64::P4, AArch64::P5, AArch64::P6, AArch64::P7, + AArch64::P8, AArch64::P9, AArch64::P10, AArch64::P11, + AArch64::P12, AArch64::P13, AArch64::P14, AArch64::P15 +}; + +static DecodeStatus DecodePPRRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Addr, const void *Decoder) { + if (RegNo > 15) + return Fail; + + unsigned Register = PPRDecoderTable[RegNo]; + Inst.addOperand(MCOperand::createReg(Register)); + return Success; +} + +static DecodeStatus DecodePPR_3bRegisterClass(MCInst &Inst, unsigned RegNo, + uint64_t Addr, + const void* Decoder) { + if (RegNo > 7) + return Fail; + + // Just reuse the PPR decode table + return DecodePPRRegisterClass(Inst, RegNo, Addr, Decoder); +} static const unsigned VectorDecoderTable[] = { AArch64::Q0, AArch64::Q1, AArch64::Q2, AArch64::Q3, AArch64::Q4, @@ -587,7 +649,7 @@ static DecodeStatus DecodeDDDDRegisterClass(MCInst &Inst, unsigned RegNo, return Success; } -static DecodeStatus DecodeFixedPointScaleImm32(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeFixedPointScaleImm32(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { // scale{5} is asserted as 1 in tblgen. @@ -596,14 +658,14 @@ static DecodeStatus DecodeFixedPointScaleImm32(llvm::MCInst &Inst, unsigned Imm, return Success; } -static DecodeStatus DecodeFixedPointScaleImm64(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeFixedPointScaleImm64(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { Inst.addOperand(MCOperand::createImm(64 - Imm)); return Success; } -static DecodeStatus DecodePCRelLabel19(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodePCRelLabel19(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { int64_t ImmVal = Imm; const AArch64Disassembler *Dis = @@ -619,14 +681,14 @@ static DecodeStatus DecodePCRelLabel19(llvm::MCInst &Inst, unsigned Imm, return Success; } -static DecodeStatus DecodeMemExtend(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMemExtend(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder) { Inst.addOperand(MCOperand::createImm((Imm >> 1) & 1)); Inst.addOperand(MCOperand::createImm(Imm & 1)); return Success; } -static DecodeStatus DecodeMRSSystemRegister(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMRSSystemRegister(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder) { Inst.addOperand(MCOperand::createImm(Imm)); @@ -636,7 +698,7 @@ static DecodeStatus DecodeMRSSystemRegister(llvm::MCInst &Inst, unsigned Imm, return Success; } -static DecodeStatus DecodeMSRSystemRegister(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeMSRSystemRegister(MCInst &Inst, unsigned Imm, uint64_t Address, const void *Decoder) { Inst.addOperand(MCOperand::createImm(Imm)); @@ -644,7 +706,7 @@ static DecodeStatus DecodeMSRSystemRegister(llvm::MCInst &Inst, unsigned Imm, return Success; } -static DecodeStatus DecodeFMOVLaneInstruction(llvm::MCInst &Inst, unsigned Insn, +static DecodeStatus DecodeFMOVLaneInstruction(MCInst &Inst, unsigned Insn, uint64_t Address, const void *Decoder) { // This decoder exists to add the dummy Lane operand to the MCInst, which must @@ -667,78 +729,78 @@ static DecodeStatus DecodeFMOVLaneInstruction(llvm::MCInst &Inst, unsigned Insn, return Success; } -static DecodeStatus DecodeVecShiftRImm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftRImm(MCInst &Inst, unsigned Imm, unsigned Add) { Inst.addOperand(MCOperand::createImm(Add - Imm)); return Success; } -static DecodeStatus DecodeVecShiftLImm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftLImm(MCInst &Inst, unsigned Imm, unsigned Add) { Inst.addOperand(MCOperand::createImm((Imm + Add) & (Add - 1))); return Success; } -static DecodeStatus DecodeVecShiftR64Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR64Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm, 64); } -static DecodeStatus DecodeVecShiftR64ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR64ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm | 0x20, 64); } -static DecodeStatus DecodeVecShiftR32Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR32Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm, 32); } -static DecodeStatus DecodeVecShiftR32ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR32ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm | 0x10, 32); } -static DecodeStatus DecodeVecShiftR16Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR16Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm, 16); } -static DecodeStatus DecodeVecShiftR16ImmNarrow(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR16ImmNarrow(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm | 0x8, 16); } -static DecodeStatus DecodeVecShiftR8Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftR8Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftRImm(Inst, Imm, 8); } -static DecodeStatus DecodeVecShiftL64Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL64Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftLImm(Inst, Imm, 64); } -static DecodeStatus DecodeVecShiftL32Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL32Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftLImm(Inst, Imm, 32); } -static DecodeStatus DecodeVecShiftL16Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL16Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftLImm(Inst, Imm, 16); } -static DecodeStatus DecodeVecShiftL8Imm(llvm::MCInst &Inst, unsigned Imm, +static DecodeStatus DecodeVecShiftL8Imm(MCInst &Inst, unsigned Imm, uint64_t Addr, const void *Decoder) { return DecodeVecShiftLImm(Inst, Imm, 8); } -static DecodeStatus DecodeThreeAddrSRegInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeThreeAddrSRegInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -799,7 +861,7 @@ static DecodeStatus DecodeThreeAddrSRegInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeMoveImmInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeMoveImmInstruction(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); @@ -832,8 +894,8 @@ static DecodeStatus DecodeMoveImmInstruction(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeUnsignedLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeUnsignedLdStInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rt = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -893,8 +955,8 @@ static DecodeStatus DecodeUnsignedLdStInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeSignedLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeSignedLdStInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rt = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -1078,8 +1140,8 @@ static DecodeStatus DecodeSignedLdStInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeExclusiveLdStInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeExclusiveLdStInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rt = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -1161,7 +1223,7 @@ static DecodeStatus DecodeExclusiveLdStInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodePairLdStInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodePairLdStInstruction(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { unsigned Rt = fieldFromInstruction(insn, 0, 5); @@ -1290,8 +1352,8 @@ static DecodeStatus DecodePairLdStInstruction(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeAddSubERegInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeAddSubERegInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -1347,8 +1409,8 @@ static DecodeStatus DecodeAddSubERegInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeLogicalImmInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeLogicalImmInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -1378,7 +1440,7 @@ static DecodeStatus DecodeLogicalImmInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeModImmInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeModImmInstruction(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); @@ -1417,8 +1479,8 @@ static DecodeStatus DecodeModImmInstruction(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeModImmTiedInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeModImmTiedInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); unsigned cmode = fieldFromInstruction(insn, 12, 4); @@ -1435,7 +1497,7 @@ static DecodeStatus DecodeModImmTiedInstruction(llvm::MCInst &Inst, return Success; } -static DecodeStatus DecodeAdrInstruction(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeAdrInstruction(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); int64_t imm = fieldFromInstruction(insn, 5, 19) << 2; @@ -1454,7 +1516,7 @@ static DecodeStatus DecodeAdrInstruction(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeBaseAddSubImm(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeBaseAddSubImm(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { unsigned Rd = fieldFromInstruction(insn, 0, 5); unsigned Rn = fieldFromInstruction(insn, 5, 5); @@ -1490,7 +1552,7 @@ static DecodeStatus DecodeBaseAddSubImm(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeUnconditionalBranch(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeUnconditionalBranch(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { int64_t imm = fieldFromInstruction(insn, 0, 26); @@ -1507,8 +1569,8 @@ static DecodeStatus DecodeUnconditionalBranch(llvm::MCInst &Inst, uint32_t insn, return Success; } -static DecodeStatus DecodeSystemPStateInstruction(llvm::MCInst &Inst, - uint32_t insn, uint64_t Addr, +static DecodeStatus DecodeSystemPStateInstruction(MCInst &Inst, uint32_t insn, + uint64_t Addr, const void *Decoder) { uint64_t op1 = fieldFromInstruction(insn, 16, 3); uint64_t op2 = fieldFromInstruction(insn, 5, 3); @@ -1531,7 +1593,7 @@ static DecodeStatus DecodeSystemPStateInstruction(llvm::MCInst &Inst, return Fail; } -static DecodeStatus DecodeTestAndBranch(llvm::MCInst &Inst, uint32_t insn, +static DecodeStatus DecodeTestAndBranch(MCInst &Inst, uint32_t insn, uint64_t Addr, const void *Decoder) { uint64_t Rt = fieldFromInstruction(insn, 0, 5); uint64_t bit = fieldFromInstruction(insn, 31, 1) << 5; @@ -1586,3 +1648,18 @@ static DecodeStatus DecodeXSeqPairsClassRegisterClass(MCInst &Inst, AArch64::XSeqPairsClassRegClassID, RegNo, Addr, Decoder); } + +template<int Bits> +static DecodeStatus DecodeSImm(llvm::MCInst &Inst, uint64_t Imm, + uint64_t Address, const void *Decoder) { + if (Imm & ~((1LL << Bits) - 1)) + return Fail; + + // Imm is a signed immediate, so sign extend it. + if (Imm & (1 << (Bits - 1))) + Imm |= ~((1LL << Bits) - 1); + + Inst.addOperand(MCOperand::createImm(Imm)); + return Success; +} + |