diff options
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassembler.cpp')
| -rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassembler.cpp | 95 |
1 files changed, 89 insertions, 6 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp index fc6b9a11f8..15e1c71eb5 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp +++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp @@ -126,6 +126,8 @@ static DecodeStatus DecodeDPR_VFP2RegisterClass(llvm::MCInst &Inst, const void *Decoder); static DecodeStatus DecodeQPRRegisterClass(llvm::MCInst &Inst, unsigned RegNo, uint64_t Address, const void *Decoder); +static DecodeStatus DecodeDPairRegisterClass(llvm::MCInst &Inst, unsigned RegNo, + uint64_t Address, const void *Decoder); static DecodeStatus DecodePredicateOperand(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder); @@ -987,6 +989,25 @@ static DecodeStatus DecodeQPRRegisterClass(llvm::MCInst &Inst, unsigned RegNo, return MCDisassembler::Success; } +static const unsigned DPairDecoderTable[] = { + ARM::Q0, ARM::D1_D2, ARM::Q1, ARM::D3_D4, ARM::Q2, ARM::D5_D6, + ARM::Q3, ARM::D7_D8, ARM::Q4, ARM::D9_D10, ARM::Q5, ARM::D11_D12, + ARM::Q6, ARM::D13_D14, ARM::Q7, ARM::D15_D16, ARM::Q8, ARM::D17_D18, + ARM::Q9, ARM::D19_D20, ARM::Q10, ARM::D21_D22, ARM::Q11, ARM::D23_D24, + ARM::Q12, ARM::D25_D26, ARM::Q13, ARM::D27_D28, ARM::Q14, ARM::D29_D30, + ARM::Q15 +}; + +static DecodeStatus DecodeDPairRegisterClass(llvm::MCInst &Inst, unsigned RegNo, + uint64_t Address, const void *Decoder) { + if (RegNo > 30) + return MCDisassembler::Fail; + + unsigned Register = DPairDecoderTable[RegNo]; + Inst.addOperand(MCOperand::CreateReg(Register)); + return MCDisassembler::Success; +} + static DecodeStatus DecodePredicateOperand(llvm::MCInst &Inst, unsigned Val, uint64_t Address, const void *Decoder) { if (Val == 0xF) return MCDisassembler::Fail; @@ -1953,8 +1974,35 @@ static DecodeStatus DecodeVLDInstruction(llvm::MCInst &Inst, unsigned Insn, unsigned Rm = fieldFromInstruction32(Insn, 0, 4); // First output register - if (!Check(S, DecodeDPRRegisterClass(Inst, Rd, Address, Decoder))) - return MCDisassembler::Fail; + switch (Inst.getOpcode()) { + case ARM::VLD1q16: + case ARM::VLD1q32: + case ARM::VLD1q64: + case ARM::VLD1q8: + case ARM::VLD1q16wb_fixed: + case ARM::VLD1q16wb_register: + case ARM::VLD1q32wb_fixed: + case ARM::VLD1q32wb_register: + case ARM::VLD1q64wb_fixed: + case ARM::VLD1q64wb_register: + case ARM::VLD1q8wb_fixed: + case ARM::VLD1q8wb_register: + case ARM::VLD2d16: + case ARM::VLD2d32: + case ARM::VLD2d8: + case ARM::VLD2d16wb_fixed: + case ARM::VLD2d16wb_register: + case ARM::VLD2d32wb_fixed: + case ARM::VLD2d32wb_register: + case ARM::VLD2d8wb_fixed: + case ARM::VLD2d8wb_register: + if (!Check(S, DecodeDPairRegisterClass(Inst, Rd, Address, Decoder))) + return MCDisassembler::Fail; + break; + default: + if (!Check(S, DecodeDPRRegisterClass(Inst, Rd, Address, Decoder))) + return MCDisassembler::Fail; + } // Second output register switch (Inst.getOpcode()) { @@ -2285,8 +2333,35 @@ static DecodeStatus DecodeVSTInstruction(llvm::MCInst &Inst, unsigned Insn, // First input register - if (!Check(S, DecodeDPRRegisterClass(Inst, Rd, Address, Decoder))) - return MCDisassembler::Fail; + switch (Inst.getOpcode()) { + case ARM::VST1q16: + case ARM::VST1q32: + case ARM::VST1q64: + case ARM::VST1q8: + case ARM::VST1q16wb_fixed: + case ARM::VST1q16wb_register: + case ARM::VST1q32wb_fixed: + case ARM::VST1q32wb_register: + case ARM::VST1q64wb_fixed: + case ARM::VST1q64wb_register: + case ARM::VST1q8wb_fixed: + case ARM::VST1q8wb_register: + case ARM::VST2d16: + case ARM::VST2d32: + case ARM::VST2d8: + case ARM::VST2d16wb_fixed: + case ARM::VST2d16wb_register: + case ARM::VST2d32wb_fixed: + case ARM::VST2d32wb_register: + case ARM::VST2d8wb_fixed: + case ARM::VST2d8wb_register: + if (!Check(S, DecodeDPairRegisterClass(Inst, Rd, Address, Decoder))) + return MCDisassembler::Fail; + break; + default: + if (!Check(S, DecodeDPRRegisterClass(Inst, Rd, Address, Decoder))) + return MCDisassembler::Fail; + } // Second input register switch (Inst.getOpcode()) { @@ -2652,8 +2727,16 @@ static DecodeStatus DecodeTBLInstruction(llvm::MCInst &Inst, unsigned Insn, return MCDisassembler::Fail; // Writeback } - if (!Check(S, DecodeDPRRegisterClass(Inst, Rn, Address, Decoder))) - return MCDisassembler::Fail; + switch (Inst.getOpcode()) { + case ARM::VTBL2: + case ARM::VTBX2: + if (!Check(S, DecodeDPairRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + break; + default: + if (!Check(S, DecodeDPRRegisterClass(Inst, Rn, Address, Decoder))) + return MCDisassembler::Fail; + } if (!Check(S, DecodeDPRRegisterClass(Inst, Rm, Address, Decoder))) return MCDisassembler::Fail; |