X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FARM%2FMCTargetDesc%2FARMMCCodeEmitter.cpp;h=3b2ca73aecd1d7677a9c8d68eaf46d524edf7329;hb=3d3e407e5f4de8a39ba3027dcc731dbf60e133cc;hp=2caf548f888e1b583c555869cec83d37df2b0456;hpb=16578b50889329eb62774148091ba0f38b681a09;p=oota-llvm.git diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp index 2caf548f888..3b2ca73aecd 100644 --- a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp +++ b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp @@ -12,19 +12,21 @@ //===----------------------------------------------------------------------===// #define DEBUG_TYPE "mccodeemitter" +#include "MCTargetDesc/ARMMCTargetDesc.h" #include "MCTargetDesc/ARMAddressingModes.h" #include "MCTargetDesc/ARMBaseInfo.h" #include "MCTargetDesc/ARMFixupKinds.h" #include "MCTargetDesc/ARMMCExpr.h" -#include "MCTargetDesc/ARMMCTargetDesc.h" +#include "llvm/ADT/APFloat.h" +#include "llvm/ADT/Statistic.h" #include "llvm/MC/MCCodeEmitter.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrInfo.h" #include "llvm/MC/MCRegisterInfo.h" #include "llvm/MC/MCSubtargetInfo.h" -#include "llvm/ADT/APFloat.h" -#include "llvm/ADT/Statistic.h" +#include "llvm/Support/ErrorHandling.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; @@ -34,127 +36,162 @@ STATISTIC(MCNumCPRelocations, "Number of constant pool relocations created."); namespace { class ARMMCCodeEmitter : public MCCodeEmitter { - ARMMCCodeEmitter(const ARMMCCodeEmitter &); // DO NOT IMPLEMENT - void operator=(const ARMMCCodeEmitter &); // DO NOT IMPLEMENT + ARMMCCodeEmitter(const ARMMCCodeEmitter &) LLVM_DELETED_FUNCTION; + void operator=(const ARMMCCodeEmitter &) LLVM_DELETED_FUNCTION; const MCInstrInfo &MCII; - const MCSubtargetInfo &STI; + const MCContext &CTX; public: - ARMMCCodeEmitter(const MCInstrInfo &mcii, const MCSubtargetInfo &sti, - MCContext &ctx) - : MCII(mcii), STI(sti) { + ARMMCCodeEmitter(const MCInstrInfo &mcii, MCContext &ctx) + : MCII(mcii), CTX(ctx) { } ~ARMMCCodeEmitter() {} - bool isThumb() const { - // FIXME: Can tablegen auto-generate this? + bool isThumb(const MCSubtargetInfo &STI) const { return (STI.getFeatureBits() & ARM::ModeThumb) != 0; } - bool isThumb2() const { - return isThumb() && (STI.getFeatureBits() & ARM::FeatureThumb2) != 0; + bool isThumb2(const MCSubtargetInfo &STI) const { + return isThumb(STI) && (STI.getFeatureBits() & ARM::FeatureThumb2) != 0; } - bool isTargetDarwin() const { + bool isTargetMachO(const MCSubtargetInfo &STI) const { Triple TT(STI.getTargetTriple()); - Triple::OSType OS = TT.getOS(); - return OS == Triple::Darwin || OS == Triple::MacOSX || OS == Triple::IOS; + return TT.isOSBinFormatMachO(); } unsigned getMachineSoImmOpValue(unsigned SoImm) const; // getBinaryCodeForInstr - TableGen'erated function for getting the // binary encoding for an instruction. - unsigned getBinaryCodeForInstr(const MCInst &MI, - SmallVectorImpl &Fixups) const; + uint64_t getBinaryCodeForInstr(const MCInst &MI, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getMachineOpValue - Return binary encoding of operand. If the machine /// operand requires relocation, record the relocation and return zero. unsigned getMachineOpValue(const MCInst &MI,const MCOperand &MO, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getHiLo16ImmOpValue - Return the encoding for the hi / low 16-bit of /// the specified operand. This is used for operands with :lower16: and /// :upper16: prefixes. uint32_t getHiLo16ImmOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; bool EncodeAddrModeOpValues(const MCInst &MI, unsigned OpIdx, unsigned &Reg, unsigned &Imm, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbBLTargetOpValue - Return encoding info for Thumb immediate /// BL branch target. uint32_t getThumbBLTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbBLXTargetOpValue - Return encoding info for Thumb immediate /// BLX branch target. uint32_t getThumbBLXTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbBRTargetOpValue - Return encoding info for Thumb branch target. uint32_t getThumbBRTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbBCCTargetOpValue - Return encoding info for Thumb branch target. uint32_t getThumbBCCTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbCBTargetOpValue - Return encoding info for Thumb branch target. uint32_t getThumbCBTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getBranchTargetOpValue - Return encoding info for 24-bit immediate /// branch target. uint32_t getBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getUnconditionalBranchTargetOpValue - Return encoding info for 24-bit /// immediate Thumb2 direct branch target. uint32_t getUnconditionalBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; - + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + /// getARMBranchTargetOpValue - Return encoding info for 24-bit immediate /// branch target. uint32_t getARMBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + uint32_t getARMBLTargetOpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + uint32_t getARMBLXTargetOpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAdrLabelOpValue - Return encoding info for 12-bit immediate /// ADR label target. uint32_t getAdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; uint32_t getThumbAdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; uint32_t getT2AdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrModeImm12OpValue - Return encoding info for 'reg +/- imm12' /// operand. uint32_t getAddrModeImm12OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getThumbAddrModeRegRegOpValue - Return encoding for 'reg + reg' operand. uint32_t getThumbAddrModeRegRegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups)const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getT2AddrModeImm8s4OpValue - Return encoding info for 'reg +/- imm8<<2' /// operand. uint32_t getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + + /// getT2AddrModeImm0_1020s4OpValue - Return encoding info for 'reg + imm8<<2' + /// operand. + uint32_t getT2AddrModeImm0_1020s4OpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + + /// getT2Imm8s4OpValue - Return encoding info for '+/- imm8<<2' + /// operand. + uint32_t getT2Imm8s4OpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getLdStSORegOpValue - Return encoding info for 'reg +/- reg shop imm' /// operand as needed by load/store instructions. uint32_t getLdStSORegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getLdStmModeOpValue - Return encoding for load/store multiple mode. uint32_t getLdStmModeOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { ARM_AM::AMSubMode Mode = (ARM_AM::AMSubMode)MI.getOperand(OpIdx).getImm(); switch (Mode) { - default: assert(0 && "Unknown addressing sub-mode!"); + default: llvm_unreachable("Unknown addressing sub-mode!"); case ARM_AM::da: return 0; case ARM_AM::ia: return 1; case ARM_AM::db: return 2; @@ -165,7 +202,6 @@ public: /// unsigned getShiftOp(ARM_AM::ShiftOpc ShOpc) const { switch (ShOpc) { - default: llvm_unreachable("Unknown shift opc!"); case ARM_AM::no_shift: case ARM_AM::lsl: return 0; case ARM_AM::lsr: return 1; @@ -173,49 +209,59 @@ public: case ARM_AM::ror: case ARM_AM::rrx: return 3; } - return 0; + llvm_unreachable("Invalid ShiftOpc!"); } /// getAddrMode2OpValue - Return encoding for addrmode2 operands. uint32_t getAddrMode2OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrMode2OffsetOpValue - Return encoding for am2offset operands. uint32_t getAddrMode2OffsetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getPostIdxRegOpValue - Return encoding for postidx_reg operands. uint32_t getPostIdxRegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrMode3OffsetOpValue - Return encoding for am3offset operands. uint32_t getAddrMode3OffsetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrMode3OpValue - Return encoding for addrmode3 operands. uint32_t getAddrMode3OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrModeThumbSPOpValue - Return encoding info for 'reg +/- imm12' /// operand. uint32_t getAddrModeThumbSPOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrModeISOpValue - Encode the t_addrmode_is# operands. uint32_t getAddrModeISOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrModePCOpValue - Return encoding for t_addrmode_pc operands. uint32_t getAddrModePCOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getAddrMode5OpValue - Return encoding info for 'reg +/- imm8' operand. uint32_t getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getCCOutOpValue - Return encoding of the 's' bit. unsigned getCCOutOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // The operand is either reg0 or CPSR. The 's' bit is encoded as '0' or // '1' respectively. return MI.getOperand(Op).getReg() == ARM::CPSR; @@ -223,7 +269,8 @@ public: /// getSOImmOpValue - Return an encoded 12-bit shifted-immediate value. unsigned getSOImmOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { unsigned SoImm = MI.getOperand(Op).getImm(); int SoImmVal = ARM_AM::getSOImmVal(SoImm); assert(SoImmVal != -1 && "Not a valid so_imm value!"); @@ -239,7 +286,8 @@ public: /// getT2SOImmOpValue - Return an encoded 12-bit shifted-immediate value. unsigned getT2SOImmOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { unsigned SoImm = MI.getOperand(Op).getImm(); unsigned Encoded = ARM_AM::getT2SOImmVal(SoImm); assert(Encoded != ~0U && "Not a Thumb2 so_imm value?"); @@ -247,62 +295,88 @@ public: } unsigned getT2AddrModeSORegOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getT2AddrModeImm8OpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getT2AddrModeImm8OffsetOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getT2AddrModeImm12OffsetOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; /// getSORegOpValue - Return an encoded so_reg shifted register value. unsigned getSORegRegOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getSORegImmOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getT2SORegOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getNEONVcvtImm32OpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { return 64 - MI.getOperand(Op).getImm(); } unsigned getBitfieldInvertedMaskOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; - - unsigned getMsbOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getRegisterListOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getAddrMode6AddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getAddrMode6OneLane32AddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getAddrMode6DupAddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getAddrMode6OffsetOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getShiftRight8Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getShiftRight16Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getShiftRight32Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned getShiftRight64Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; + + unsigned getThumbSRImmOpValue(const MCInst &MI, unsigned Op, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const; unsigned NEONThumb2DataIPostEncoder(const MCInst &MI, - unsigned EncodedValue) const; + unsigned EncodedValue, + const MCSubtargetInfo &STI) const; unsigned NEONThumb2LoadStorePostEncoder(const MCInst &MI, - unsigned EncodedValue) const; + unsigned EncodedValue, + const MCSubtargetInfo &STI) const; unsigned NEONThumb2DupPostEncoder(const MCInst &MI, - unsigned EncodedValue) const; + unsigned EncodedValue, + const MCSubtargetInfo &STI) const; + unsigned NEONThumb2V8PostEncoder(const MCInst &MI, + unsigned EncodedValue, + const MCSubtargetInfo &STI) const; unsigned VFPThumb2PostEncoder(const MCInst &MI, - unsigned EncodedValue) const; + unsigned EncodedValue, + const MCSubtargetInfo &STI) const; void EmitByte(unsigned char C, raw_ostream &OS) const { OS << (char)C; @@ -317,23 +391,26 @@ public: } void EncodeInstruction(const MCInst &MI, raw_ostream &OS, - SmallVectorImpl &Fixups) const; + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const override; }; } // end anonymous namespace MCCodeEmitter *llvm::createARMMCCodeEmitter(const MCInstrInfo &MCII, + const MCRegisterInfo &MRI, const MCSubtargetInfo &STI, MCContext &Ctx) { - return new ARMMCCodeEmitter(MCII, STI, Ctx); + return new ARMMCCodeEmitter(MCII, Ctx); } /// NEONThumb2DataIPostEncoder - Post-process encoded NEON data-processing /// instructions, and rewrite them to their Thumb2 form if we are currently in /// Thumb2 mode. unsigned ARMMCCodeEmitter::NEONThumb2DataIPostEncoder(const MCInst &MI, - unsigned EncodedValue) const { - if (isThumb2()) { + unsigned EncodedValue, + const MCSubtargetInfo &STI) const { + if (isThumb2(STI)) { // NEON Thumb2 data-processsing encodings are very simple: bit 24 is moved // to bit 12 of the high half-word (i.e. bit 28), and bits 27-24 are // set to 1111. @@ -351,8 +428,9 @@ unsigned ARMMCCodeEmitter::NEONThumb2DataIPostEncoder(const MCInst &MI, /// instructions, and rewrite them to their Thumb2 form if we are currently in /// Thumb2 mode. unsigned ARMMCCodeEmitter::NEONThumb2LoadStorePostEncoder(const MCInst &MI, - unsigned EncodedValue) const { - if (isThumb2()) { + unsigned EncodedValue, + const MCSubtargetInfo &STI) const { + if (isThumb2(STI)) { EncodedValue &= 0xF0FFFFFF; EncodedValue |= 0x09000000; } @@ -364,8 +442,9 @@ unsigned ARMMCCodeEmitter::NEONThumb2LoadStorePostEncoder(const MCInst &MI, /// instructions, and rewrite them to their Thumb2 form if we are currently in /// Thumb2 mode. unsigned ARMMCCodeEmitter::NEONThumb2DupPostEncoder(const MCInst &MI, - unsigned EncodedValue) const { - if (isThumb2()) { + unsigned EncodedValue, + const MCSubtargetInfo &STI) const { + if (isThumb2(STI)) { EncodedValue &= 0x00FFFFFF; EncodedValue |= 0xEE000000; } @@ -373,11 +452,24 @@ unsigned ARMMCCodeEmitter::NEONThumb2DupPostEncoder(const MCInst &MI, return EncodedValue; } +/// Post-process encoded NEON v8 instructions, and rewrite them to Thumb2 form +/// if we are in Thumb2. +unsigned ARMMCCodeEmitter::NEONThumb2V8PostEncoder(const MCInst &MI, + unsigned EncodedValue, + const MCSubtargetInfo &STI) const { + if (isThumb2(STI)) { + EncodedValue |= 0xC000000; // Set bits 27-26 + } + + return EncodedValue; +} + /// VFPThumb2PostEncoder - Post-process encoded VFP instructions and rewrite /// them to their Thumb2 form if we are currently in Thumb2 mode. unsigned ARMMCCodeEmitter:: -VFPThumb2PostEncoder(const MCInst &MI, unsigned EncodedValue) const { - if (isThumb2()) { +VFPThumb2PostEncoder(const MCInst &MI, unsigned EncodedValue, + const MCSubtargetInfo &STI) const { + if (isThumb2(STI)) { EncodedValue &= 0x0FFFFFFF; EncodedValue |= 0xE0000000; } @@ -388,10 +480,11 @@ VFPThumb2PostEncoder(const MCInst &MI, unsigned EncodedValue) const { /// operand requires relocation, record the relocation and return zero. unsigned ARMMCCodeEmitter:: getMachineOpValue(const MCInst &MI, const MCOperand &MO, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { if (MO.isReg()) { unsigned Reg = MO.getReg(); - unsigned RegNo = getARMRegisterNumbering(Reg); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg); // Q registers are encoded as 2x their register number. switch (Reg) { @@ -411,24 +504,26 @@ getMachineOpValue(const MCInst &MI, const MCOperand &MO, } llvm_unreachable("Unable to encode MCOperand!"); - return 0; } /// getAddrModeImmOpValue - Return encoding info for 'reg +/- imm' operand. bool ARMMCCodeEmitter:: EncodeAddrModeOpValues(const MCInst &MI, unsigned OpIdx, unsigned &Reg, - unsigned &Imm, SmallVectorImpl &Fixups) const { + unsigned &Imm, SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO = MI.getOperand(OpIdx); const MCOperand &MO1 = MI.getOperand(OpIdx + 1); - Reg = getARMRegisterNumbering(MO.getReg()); + Reg = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); int32_t SImm = MO1.getImm(); bool isAdd = true; // Special value for #-0 - if (SImm == INT32_MIN) + if (SImm == INT32_MIN) { SImm = 0; + isAdd = false; + } // Immediate is always encoded as positive. The 'U' bit controls add vs sub. if (SImm < 0) { @@ -444,7 +539,8 @@ EncodeAddrModeOpValues(const MCInst &MI, unsigned OpIdx, unsigned &Reg, /// which is either an immediate or requires a fixup. static uint32_t getBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, unsigned FixupKind, - SmallVectorImpl &Fixups) { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) { const MCOperand &MO = MI.getOperand(OpIdx); // If the destination is an immediate, we have nothing to do. @@ -452,46 +548,89 @@ static uint32_t getBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, assert(MO.isExpr() && "Unexpected branch target type!"); const MCExpr *Expr = MO.getExpr(); MCFixupKind Kind = MCFixupKind(FixupKind); - Fixups.push_back(MCFixup::Create(0, Expr, Kind)); + Fixups.push_back(MCFixup::Create(0, Expr, Kind, MI.getLoc())); // All of the information is in the fixup. return 0; } +// Thumb BL and BLX use a strange offset encoding where bits 22 and 21 are +// determined by negating them and XOR'ing them with bit 23. +static int32_t encodeThumbBLOffset(int32_t offset) { + offset >>= 1; + uint32_t S = (offset & 0x800000) >> 23; + uint32_t J1 = (offset & 0x400000) >> 22; + uint32_t J2 = (offset & 0x200000) >> 21; + J1 = (~J1 & 0x1); + J2 = (~J2 & 0x1); + J1 ^= S; + J2 ^= S; + + offset &= ~0x600000; + offset |= J1 << 22; + offset |= J2 << 21; + + return offset; +} + /// getThumbBLTargetOpValue - Return encoding info for immediate branch target. uint32_t ARMMCCodeEmitter:: getThumbBLTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_bl, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_bl, + Fixups, STI); + return encodeThumbBLOffset(MO.getImm()); } /// getThumbBLXTargetOpValue - Return encoding info for Thumb immediate /// BLX branch target. uint32_t ARMMCCodeEmitter:: getThumbBLXTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_blx, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_blx, + Fixups, STI); + return encodeThumbBLOffset(MO.getImm()); } /// getThumbBRTargetOpValue - Return encoding info for Thumb branch target. uint32_t ARMMCCodeEmitter:: getThumbBRTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_br, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_br, + Fixups, STI); + return (MO.getImm() >> 1); } /// getThumbBCCTargetOpValue - Return encoding info for Thumb branch target. uint32_t ARMMCCodeEmitter:: getThumbBCCTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_bcc, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_bcc, + Fixups, STI); + return (MO.getImm() >> 1); } /// getThumbCBTargetOpValue - Return encoding info for Thumb branch target. uint32_t ARMMCCodeEmitter:: getThumbCBTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_cb, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_cb, Fixups, STI); + return (MO.getImm() >> 1); } /// Return true if this branch has a non-always predication @@ -501,9 +640,9 @@ static bool HasConditionalBranch(const MCInst &MI) { for (int i = 0; i < NumOp-1; ++i) { const MCOperand &MCOp1 = MI.getOperand(i); const MCOperand &MCOp2 = MI.getOperand(i + 1); - if (MCOp1.isImm() && MCOp2.isReg() && + if (MCOp1.isImm() && MCOp2.isReg() && (MCOp2.getReg() == 0 || MCOp2.getReg() == ARM::CPSR)) { - if (ARMCC::CondCodes(MCOp1.getImm()) != ARMCC::AL) + if (ARMCC::CondCodes(MCOp1.getImm()) != ARMCC::AL) return true; } } @@ -515,37 +654,74 @@ static bool HasConditionalBranch(const MCInst &MI) { /// target. uint32_t ARMMCCodeEmitter:: getBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // FIXME: This really, really shouldn't use TargetMachine. We don't want // coupling between MC and TM anywhere we can help it. - if (isThumb2()) + if (isThumb2(STI)) return - ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_condbranch, Fixups); - return getARMBranchTargetOpValue(MI, OpIdx, Fixups); + ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_condbranch, Fixups, STI); + return getARMBranchTargetOpValue(MI, OpIdx, Fixups, STI); } /// getBranchTargetOpValue - Return encoding info for 24-bit immediate branch /// target. uint32_t ARMMCCodeEmitter:: getARMBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - if (HasConditionalBranch(MI)) + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) { + if (HasConditionalBranch(MI)) + return ::getBranchTargetOpValue(MI, OpIdx, + ARM::fixup_arm_condbranch, Fixups, STI); return ::getBranchTargetOpValue(MI, OpIdx, - ARM::fixup_arm_condbranch, Fixups); - return ::getBranchTargetOpValue(MI, OpIdx, - ARM::fixup_arm_uncondbranch, Fixups); + ARM::fixup_arm_uncondbranch, Fixups, STI); + } + + return MO.getImm() >> 2; } +uint32_t ARMMCCodeEmitter:: +getARMBLTargetOpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) { + if (HasConditionalBranch(MI)) + return ::getBranchTargetOpValue(MI, OpIdx, + ARM::fixup_arm_condbl, Fixups, STI); + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_uncondbl, Fixups, STI); + } + return MO.getImm() >> 2; +} +uint32_t ARMMCCodeEmitter:: +getARMBLXTargetOpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_blx, Fixups, STI); + + return MO.getImm() >> 1; +} /// getUnconditionalBranchTargetOpValue - Return encoding info for 24-bit /// immediate branch target. uint32_t ARMMCCodeEmitter:: getUnconditionalBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - unsigned Val = - ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_uncondbranch, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + unsigned Val = 0; + const MCOperand MO = MI.getOperand(OpIdx); + + if(MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_uncondbranch, Fixups, STI); + else + Val = MO.getImm() >> 1; + bool I = (Val & 0x800000); bool J1 = (Val & 0x400000); bool J2 = (Val & 0x200000); @@ -562,55 +738,101 @@ getUnconditionalBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, return Val; } -/// getAdrLabelOpValue - Return encoding info for 12-bit immediate ADR label -/// target. +/// getAdrLabelOpValue - Return encoding info for 12-bit shifted-immediate +/// ADR label target. uint32_t ARMMCCodeEmitter:: getAdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - assert(MI.getOperand(OpIdx).isExpr() && "Unexpected adr target type!"); - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_adr_pcrel_12, - Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_adr_pcrel_12, + Fixups, STI); + int64_t offset = MO.getImm(); + uint32_t Val = 0x2000; + + int SoImmVal; + if (offset == INT32_MIN) { + Val = 0x1000; + SoImmVal = 0; + } else if (offset < 0) { + Val = 0x1000; + offset *= -1; + SoImmVal = ARM_AM::getSOImmVal(offset); + if(SoImmVal == -1) { + Val = 0x2000; + offset *= -1; + SoImmVal = ARM_AM::getSOImmVal(offset); + } + } else { + SoImmVal = ARM_AM::getSOImmVal(offset); + if(SoImmVal == -1) { + Val = 0x1000; + offset *= -1; + SoImmVal = ARM_AM::getSOImmVal(offset); + } + } + + assert(SoImmVal != -1 && "Not a valid so_imm value!"); + + Val |= SoImmVal; + return Val; } -/// getAdrLabelOpValue - Return encoding info for 12-bit immediate ADR label +/// getT2AdrLabelOpValue - Return encoding info for 12-bit immediate ADR label /// target. uint32_t ARMMCCodeEmitter:: getT2AdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - assert(MI.getOperand(OpIdx).isExpr() && "Unexpected adr target type!"); - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_adr_pcrel_12, - Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_t2_adr_pcrel_12, + Fixups, STI); + int32_t Val = MO.getImm(); + if (Val == INT32_MIN) + Val = 0x1000; + else if (Val < 0) { + Val *= -1; + Val |= 0x1000; + } + return Val; } -/// getAdrLabelOpValue - Return encoding info for 8-bit immediate ADR label +/// getThumbAdrLabelOpValue - Return encoding info for 8-bit immediate ADR label /// target. uint32_t ARMMCCodeEmitter:: getThumbAdrLabelOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - assert(MI.getOperand(OpIdx).isExpr() && "Unexpected adr target type!"); - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_thumb_adr_pcrel_10, - Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_thumb_adr_pcrel_10, + Fixups, STI); + return MO.getImm(); } /// getThumbAddrModeRegRegOpValue - Return encoding info for 'reg + reg' /// operand. uint32_t ARMMCCodeEmitter:: getThumbAddrModeRegRegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &) const { + SmallVectorImpl &, + const MCSubtargetInfo &STI) const { // [Rn, Rm] // {5-3} = Rm // {2-0} = Rn const MCOperand &MO1 = MI.getOperand(OpIdx); const MCOperand &MO2 = MI.getOperand(OpIdx + 1); - unsigned Rn = getARMRegisterNumbering(MO1.getReg()); - unsigned Rm = getARMRegisterNumbering(MO2.getReg()); + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg()); + unsigned Rm = CTX.getRegisterInfo()->getEncodingValue(MO2.getReg()); return (Rm << 3) | Rn; } /// getAddrModeImm12OpValue - Return encoding info for 'reg +/- imm12' operand. uint32_t ARMMCCodeEmitter:: getAddrModeImm12OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {17-13} = reg // {12} = (U)nsigned (add == '1', sub == '0') // {11-0} = imm12 @@ -619,23 +841,35 @@ getAddrModeImm12OpValue(const MCInst &MI, unsigned OpIdx, // If The first operand isn't a register, we have a label reference. const MCOperand &MO = MI.getOperand(OpIdx); if (!MO.isReg()) { - Reg = getARMRegisterNumbering(ARM::PC); // Rn is PC. + Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC. Imm12 = 0; - isAdd = false ; // 'U' bit is set as part of the fixup. - assert(MO.isExpr() && "Unexpected machine operand type!"); - const MCExpr *Expr = MO.getExpr(); - - MCFixupKind Kind; - if (isThumb2()) - Kind = MCFixupKind(ARM::fixup_t2_ldst_pcrel_12); - else - Kind = MCFixupKind(ARM::fixup_arm_ldst_pcrel_12); - Fixups.push_back(MCFixup::Create(0, Expr, Kind)); + if (MO.isExpr()) { + const MCExpr *Expr = MO.getExpr(); + isAdd = false ; // 'U' bit is set as part of the fixup. - ++MCNumCPRelocations; + MCFixupKind Kind; + if (isThumb2(STI)) + Kind = MCFixupKind(ARM::fixup_t2_ldst_pcrel_12); + else + Kind = MCFixupKind(ARM::fixup_arm_ldst_pcrel_12); + Fixups.push_back(MCFixup::Create(0, Expr, Kind, MI.getLoc())); + + ++MCNumCPRelocations; + } else { + Reg = ARM::PC; + int32_t Offset = MO.getImm(); + if (Offset == INT32_MIN) { + Offset = 0; + isAdd = false; + } else if (Offset < 0) { + Offset *= -1; + isAdd = false; + } + Imm12 = Offset; + } } else - isAdd = EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm12, Fixups); + isAdd = EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm12, Fixups, STI); uint32_t Binary = Imm12 & 0xfff; // Immediate is always encoded as positive. The 'U' bit controls add vs sub. @@ -645,11 +879,44 @@ getAddrModeImm12OpValue(const MCInst &MI, unsigned OpIdx, return Binary; } +/// getT2Imm8s4OpValue - Return encoding info for +/// '+/- imm8<<2' operand. +uint32_t ARMMCCodeEmitter:: +getT2Imm8s4OpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + // FIXME: The immediate operand should have already been encoded like this + // before ever getting here. The encoder method should just need to combine + // the MI operands for the register and the offset into a single + // representation for the complex operand in the .td file. This isn't just + // style, unfortunately. As-is, we can't represent the distinct encoding + // for #-0. + + // {8} = (U)nsigned (add == '1', sub == '0') + // {7-0} = imm8 + int32_t Imm8 = MI.getOperand(OpIdx).getImm(); + bool isAdd = Imm8 >= 0; + + // Immediate is always encoded as positive. The 'U' bit controls add vs sub. + if (Imm8 < 0) + Imm8 = -(uint32_t)Imm8; + + // Scaled by 4. + Imm8 /= 4; + + uint32_t Binary = Imm8 & 0xff; + // Immediate is always encoded as positive. The 'U' bit controls add vs sub. + if (isAdd) + Binary |= (1 << 8); + return Binary; +} + /// getT2AddrModeImm8s4OpValue - Return encoding info for /// 'reg +/- imm8<<2' operand. uint32_t ARMMCCodeEmitter:: getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {12-9} = reg // {8} = (U)nsigned (add == '1', sub == '0') // {7-0} = imm8 @@ -658,19 +925,25 @@ getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx, // If The first operand isn't a register, we have a label reference. const MCOperand &MO = MI.getOperand(OpIdx); if (!MO.isReg()) { - Reg = getARMRegisterNumbering(ARM::PC); // Rn is PC. + Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC. Imm8 = 0; isAdd = false ; // 'U' bit is set as part of the fixup. assert(MO.isExpr() && "Unexpected machine operand type!"); const MCExpr *Expr = MO.getExpr(); - MCFixupKind Kind = MCFixupKind(ARM::fixup_arm_pcrel_10); - Fixups.push_back(MCFixup::Create(0, Expr, Kind)); + MCFixupKind Kind = MCFixupKind(ARM::fixup_t2_pcrel_10); + Fixups.push_back(MCFixup::Create(0, Expr, Kind, MI.getLoc())); ++MCNumCPRelocations; } else - isAdd = EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm8, Fixups); - + isAdd = EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm8, Fixups, STI); + + // FIXME: The immediate operand should have already been encoded like this + // before ever getting here. The encoder method should just need to combine + // the MI operands for the register and the offset into a single + // representation for the complex operand in the .td file. This isn't just + // style, unfortunately. As-is, we can't represent the distinct encoding + // for #-0. uint32_t Binary = (Imm8 >> 2) & 0xff; // Immediate is always encoded as positive. The 'U' bit controls add vs sub. if (isAdd) @@ -679,6 +952,21 @@ getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx, return Binary; } +/// getT2AddrModeImm0_1020s4OpValue - Return encoding info for +/// 'reg + imm8<<2' operand. +uint32_t ARMMCCodeEmitter:: +getT2AddrModeImm0_1020s4OpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + // {11-8} = reg + // {7-0} = imm8 + const MCOperand &MO = MI.getOperand(OpIdx); + const MCOperand &MO1 = MI.getOperand(OpIdx + 1); + unsigned Reg = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); + unsigned Imm8 = MO1.getImm(); + return (Reg << 8) | Imm8; +} + // FIXME: This routine assumes that a binary // expression will always result in a PCRel expression // In reality, its only true if one or more subexpressions @@ -686,7 +974,7 @@ getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx, // but this is good enough for now. static bool EvaluateAsPCRel(const MCExpr *Expr) { switch (Expr->getKind()) { - default: assert(0 && "Unexpected expression type"); + default: llvm_unreachable("Unexpected expression type"); case MCExpr::SymbolRef: return false; case MCExpr::Binary: return true; } @@ -694,7 +982,8 @@ static bool EvaluateAsPCRel(const MCExpr *Expr) { uint32_t ARMMCCodeEmitter::getHiLo16ImmOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {20-16} = imm{15-12} // {11-0} = imm{11-0} const MCOperand &MO = MI.getOperand(OpIdx); @@ -704,55 +993,85 @@ ARMMCCodeEmitter::getHiLo16ImmOpValue(const MCInst &MI, unsigned OpIdx, // Handle :upper16: and :lower16: assembly prefixes. const MCExpr *E = MO.getExpr(); + MCFixupKind Kind; if (E->getKind() == MCExpr::Target) { const ARMMCExpr *ARM16Expr = cast(E); E = ARM16Expr->getSubExpr(); - MCFixupKind Kind; + if (const MCConstantExpr *MCE = dyn_cast(E)) { + const int64_t Value = MCE->getValue(); + if (Value > UINT32_MAX) + report_fatal_error("constant value truncated (limited to 32-bit)"); + + switch (ARM16Expr->getKind()) { + case ARMMCExpr::VK_ARM_HI16: + return (int32_t(Value) & 0xffff0000) >> 16; + case ARMMCExpr::VK_ARM_LO16: + return (int32_t(Value) & 0x0000ffff); + default: llvm_unreachable("Unsupported ARMFixup"); + } + } + switch (ARM16Expr->getKind()) { - default: assert(0 && "Unsupported ARMFixup"); + default: llvm_unreachable("Unsupported ARMFixup"); case ARMMCExpr::VK_ARM_HI16: - if (!isTargetDarwin() && EvaluateAsPCRel(E)) - Kind = MCFixupKind(isThumb2() + if (!isTargetMachO(STI) && EvaluateAsPCRel(E)) + Kind = MCFixupKind(isThumb2(STI) ? ARM::fixup_t2_movt_hi16_pcrel : ARM::fixup_arm_movt_hi16_pcrel); else - Kind = MCFixupKind(isThumb2() + Kind = MCFixupKind(isThumb2(STI) ? ARM::fixup_t2_movt_hi16 : ARM::fixup_arm_movt_hi16); break; case ARMMCExpr::VK_ARM_LO16: - if (!isTargetDarwin() && EvaluateAsPCRel(E)) - Kind = MCFixupKind(isThumb2() + if (!isTargetMachO(STI) && EvaluateAsPCRel(E)) + Kind = MCFixupKind(isThumb2(STI) ? ARM::fixup_t2_movw_lo16_pcrel : ARM::fixup_arm_movw_lo16_pcrel); else - Kind = MCFixupKind(isThumb2() + Kind = MCFixupKind(isThumb2(STI) ? ARM::fixup_t2_movw_lo16 : ARM::fixup_arm_movw_lo16); break; } - Fixups.push_back(MCFixup::Create(0, E, Kind)); + Fixups.push_back(MCFixup::Create(0, E, Kind, MI.getLoc())); return 0; - }; - - llvm_unreachable("Unsupported MCExpr type in MCOperand!"); + } + // If the expression doesn't have :upper16: or :lower16: on it, + // it's just a plain immediate expression, and those evaluate to + // the lower 16 bits of the expression regardless of whether + // we have a movt or a movw. + if (!isTargetMachO(STI) && EvaluateAsPCRel(E)) + Kind = MCFixupKind(isThumb2(STI) + ? ARM::fixup_t2_movw_lo16_pcrel + : ARM::fixup_arm_movw_lo16_pcrel); + else + Kind = MCFixupKind(isThumb2(STI) + ? ARM::fixup_t2_movw_lo16 + : ARM::fixup_arm_movw_lo16); + Fixups.push_back(MCFixup::Create(0, E, Kind, MI.getLoc())); return 0; } uint32_t ARMMCCodeEmitter:: getLdStSORegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO = MI.getOperand(OpIdx); const MCOperand &MO1 = MI.getOperand(OpIdx+1); const MCOperand &MO2 = MI.getOperand(OpIdx+2); - unsigned Rn = getARMRegisterNumbering(MO.getReg()); - unsigned Rm = getARMRegisterNumbering(MO1.getReg()); + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); + unsigned Rm = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg()); unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm()); bool isAdd = ARM_AM::getAM2Op(MO2.getImm()) == ARM_AM::add; ARM_AM::ShiftOpc ShOp = ARM_AM::getAM2ShiftOpc(MO2.getImm()); unsigned SBits = getShiftOp(ShOp); + // While "lsr #32" and "asr #32" exist, they are encoded with a 0 in the shift + // amount. However, it would be an easy mistake to make so check here. + assert((ShImm & ~0x1f) == 0 && "Out of range shift amount"); + // {16-13} = Rn // {12} = isAdd // {11-0} = shifter @@ -771,21 +1090,23 @@ getLdStSORegOpValue(const MCInst &MI, unsigned OpIdx, uint32_t ARMMCCodeEmitter:: getAddrMode2OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {17-14} Rn // {13} 1 == imm12, 0 == Rm // {12} isAdd // {11-0} imm12/Rm const MCOperand &MO = MI.getOperand(OpIdx); - unsigned Rn = getARMRegisterNumbering(MO.getReg()); - uint32_t Binary = getAddrMode2OffsetOpValue(MI, OpIdx + 1, Fixups); + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); + uint32_t Binary = getAddrMode2OffsetOpValue(MI, OpIdx + 1, Fixups, STI); Binary |= Rn << 14; return Binary; } uint32_t ARMMCCodeEmitter:: getAddrMode2OffsetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {13} 1 == imm12, 0 == Rm // {12} isAdd // {11-0} imm12/Rm @@ -800,25 +1121,27 @@ getAddrMode2OffsetOpValue(const MCInst &MI, unsigned OpIdx, ARM_AM::ShiftOpc ShOp = ARM_AM::getAM2ShiftOpc(Imm); Binary <<= 7; // Shift amount is bits [11:7] Binary |= getShiftOp(ShOp) << 5; // Shift type is bits [6:5] - Binary |= getARMRegisterNumbering(MO.getReg()); // Rm is bits [3:0] + Binary |= CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); // Rm is bits [3:0] } return Binary | (isAdd << 12) | (isReg << 13); } uint32_t ARMMCCodeEmitter:: getPostIdxRegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {4} isAdd // {3-0} Rm const MCOperand &MO = MI.getOperand(OpIdx); const MCOperand &MO1 = MI.getOperand(OpIdx+1); bool isAdd = MO1.getImm() != 0; - return getARMRegisterNumbering(MO.getReg()) | (isAdd << 4); + return CTX.getRegisterInfo()->getEncodingValue(MO.getReg()) | (isAdd << 4); } uint32_t ARMMCCodeEmitter:: getAddrMode3OffsetOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {9} 1 == imm8, 0 == Rm // {8} isAdd // {7-4} imm7_4/zero @@ -831,13 +1154,14 @@ getAddrMode3OffsetOpValue(const MCInst &MI, unsigned OpIdx, uint32_t Imm8 = ARM_AM::getAM3Offset(Imm); // if reg +/- reg, Rm will be non-zero. Otherwise, we have reg +/- imm8 if (!isImm) - Imm8 = getARMRegisterNumbering(MO.getReg()); + Imm8 = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); return Imm8 | (isAdd << 8) | (isImm << 9); } uint32_t ARMMCCodeEmitter:: getAddrMode3OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {13} 1 == imm8, 0 == Rm // {12-9} Rn // {8} isAdd @@ -846,21 +1170,35 @@ getAddrMode3OpValue(const MCInst &MI, unsigned OpIdx, const MCOperand &MO = MI.getOperand(OpIdx); const MCOperand &MO1 = MI.getOperand(OpIdx+1); const MCOperand &MO2 = MI.getOperand(OpIdx+2); - unsigned Rn = getARMRegisterNumbering(MO.getReg()); + + // If The first operand isn't a register, we have a label reference. + if (!MO.isReg()) { + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC. + + assert(MO.isExpr() && "Unexpected machine operand type!"); + const MCExpr *Expr = MO.getExpr(); + MCFixupKind Kind = MCFixupKind(ARM::fixup_arm_pcrel_10_unscaled); + Fixups.push_back(MCFixup::Create(0, Expr, Kind, MI.getLoc())); + + ++MCNumCPRelocations; + return (Rn << 9) | (1 << 13); + } + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); unsigned Imm = MO2.getImm(); bool isAdd = ARM_AM::getAM3Op(Imm) == ARM_AM::add; bool isImm = MO1.getReg() == 0; uint32_t Imm8 = ARM_AM::getAM3Offset(Imm); // if reg +/- reg, Rm will be non-zero. Otherwise, we have reg +/- imm8 if (!isImm) - Imm8 = getARMRegisterNumbering(MO1.getReg()); + Imm8 = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg()); return (Rn << 9) | Imm8 | (isAdd << 8) | (isImm << 13); } /// getAddrModeThumbSPOpValue - Encode the t_addrmode_sp operands. uint32_t ARMMCCodeEmitter:: getAddrModeThumbSPOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // [SP, #imm] // {7-0} = imm8 const MCOperand &MO1 = MI.getOperand(OpIdx + 1); @@ -875,13 +1213,14 @@ getAddrModeThumbSPOpValue(const MCInst &MI, unsigned OpIdx, /// getAddrModeISOpValue - Encode the t_addrmode_is# operands. uint32_t ARMMCCodeEmitter:: getAddrModeISOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // [Rn, #imm] // {7-3} = imm5 // {2-0} = Rn const MCOperand &MO = MI.getOperand(OpIdx); const MCOperand &MO1 = MI.getOperand(OpIdx + 1); - unsigned Rn = getARMRegisterNumbering(MO.getReg()); + unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); unsigned Imm5 = MO1.getImm(); return ((Imm5 & 0x1f) << 3) | Rn; } @@ -889,14 +1228,19 @@ getAddrModeISOpValue(const MCInst &MI, unsigned OpIdx, /// getAddrModePCOpValue - Return encoding for t_addrmode_pc operands. uint32_t ARMMCCodeEmitter:: getAddrModePCOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { - return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_cp, Fixups); + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + const MCOperand MO = MI.getOperand(OpIdx); + if (MO.isExpr()) + return ::getBranchTargetOpValue(MI, OpIdx, ARM::fixup_arm_thumb_cp, Fixups, STI); + return (MO.getImm() >> 2); } /// getAddrMode5OpValue - Return encoding info for 'reg +/- imm10' operand. uint32_t ARMMCCodeEmitter:: getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // {12-9} = reg // {8} = (U)nsigned (add == '1', sub == '0') // {7-0} = imm8 @@ -905,22 +1249,22 @@ getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx, // If The first operand isn't a register, we have a label reference. const MCOperand &MO = MI.getOperand(OpIdx); if (!MO.isReg()) { - Reg = getARMRegisterNumbering(ARM::PC); // Rn is PC. + Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC. Imm8 = 0; isAdd = false; // 'U' bit is handled as part of the fixup. assert(MO.isExpr() && "Unexpected machine operand type!"); const MCExpr *Expr = MO.getExpr(); MCFixupKind Kind; - if (isThumb2()) + if (isThumb2(STI)) Kind = MCFixupKind(ARM::fixup_t2_pcrel_10); else Kind = MCFixupKind(ARM::fixup_arm_pcrel_10); - Fixups.push_back(MCFixup::Create(0, Expr, Kind)); + Fixups.push_back(MCFixup::Create(0, Expr, Kind, MI.getLoc())); ++MCNumCPRelocations; } else { - EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm8, Fixups); + EncodeAddrModeOpValues(MI, OpIdx, Reg, Imm8, Fixups, STI); isAdd = ARM_AM::getAM5Op(Imm8) == ARM_AM::add; } @@ -934,7 +1278,8 @@ getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx, unsigned ARMMCCodeEmitter:: getSORegRegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // Sub-operands are [reg, reg, imm]. The first register is Rm, the reg to be // shifted. The second is Rs, the amount to shift by, and the third specifies // the type of the shift. @@ -951,7 +1296,7 @@ getSORegRegOpValue(const MCInst &MI, unsigned OpIdx, ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO2.getImm()); // Encode Rm. - unsigned Binary = getARMRegisterNumbering(MO.getReg()); + unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); // Encode the shift opcode. unsigned SBits = 0; @@ -976,12 +1321,13 @@ getSORegRegOpValue(const MCInst &MI, unsigned OpIdx, // Encode the shift operation Rs. // Encode Rs bit[11:8]. assert(ARM_AM::getSORegOffset(MO2.getImm()) == 0); - return Binary | (getARMRegisterNumbering(Rs) << ARMII::RegRsShift); + return Binary | (CTX.getRegisterInfo()->getEncodingValue(Rs) << ARMII::RegRsShift); } unsigned ARMMCCodeEmitter:: getSORegImmOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // Sub-operands are [reg, imm]. The first register is Rm, the reg to be // shifted. The second is the amount to shift by. // @@ -995,7 +1341,7 @@ getSORegImmOpValue(const MCInst &MI, unsigned OpIdx, ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO1.getImm()); // Encode Rm. - unsigned Binary = getARMRegisterNumbering(MO.getReg()); + unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); // Encode the shift opcode. unsigned SBits = 0; @@ -1019,22 +1365,25 @@ getSORegImmOpValue(const MCInst &MI, unsigned OpIdx, // Encode shift_imm bit[11:7]. Binary |= SBits << 4; - return Binary | ARM_AM::getSORegOffset(MO1.getImm()) << 7; + unsigned Offset = ARM_AM::getSORegOffset(MO1.getImm()); + assert(Offset < 32 && "Offset must be in range 0-31!"); + return Binary | (Offset << 7); } unsigned ARMMCCodeEmitter:: getT2AddrModeSORegOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO1 = MI.getOperand(OpNum); const MCOperand &MO2 = MI.getOperand(OpNum+1); const MCOperand &MO3 = MI.getOperand(OpNum+2); // Encoded as [Rn, Rm, imm]. // FIXME: Needs fixup support. - unsigned Value = getARMRegisterNumbering(MO1.getReg()); + unsigned Value = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg()); Value <<= 4; - Value |= getARMRegisterNumbering(MO2.getReg()); + Value |= CTX.getRegisterInfo()->getEncodingValue(MO2.getReg()); Value <<= 2; Value |= MO3.getImm(); @@ -1043,12 +1392,13 @@ getT2AddrModeSORegOpValue(const MCInst &MI, unsigned OpNum, unsigned ARMMCCodeEmitter:: getT2AddrModeImm8OpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO1 = MI.getOperand(OpNum); const MCOperand &MO2 = MI.getOperand(OpNum+1); // FIXME: Needs fixup support. - unsigned Value = getARMRegisterNumbering(MO1.getReg()); + unsigned Value = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg()); // Even though the immediate is 8 bits long, we need 9 bits in order // to represent the (inverse of the) sign bit. @@ -1064,7 +1414,8 @@ getT2AddrModeImm8OpValue(const MCInst &MI, unsigned OpNum, unsigned ARMMCCodeEmitter:: getT2AddrModeImm8OffsetOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO1 = MI.getOperand(OpNum); // FIXME: Needs fixup support. @@ -1080,7 +1431,8 @@ getT2AddrModeImm8OffsetOpValue(const MCInst &MI, unsigned OpNum, unsigned ARMMCCodeEmitter:: getT2AddrModeImm12OffsetOpValue(const MCInst &MI, unsigned OpNum, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO1 = MI.getOperand(OpNum); // FIXME: Needs fixup support. @@ -1096,7 +1448,8 @@ getT2AddrModeImm12OffsetOpValue(const MCInst &MI, unsigned OpNum, unsigned ARMMCCodeEmitter:: getT2SORegOpValue(const MCInst &MI, unsigned OpIdx, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // Sub-operands are [reg, imm]. The first register is Rm, the reg to be // shifted. The second is the amount to shift by. // @@ -1110,7 +1463,7 @@ getT2SORegOpValue(const MCInst &MI, unsigned OpIdx, ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO1.getImm()); // Encode Rm. - unsigned Binary = getARMRegisterNumbering(MO.getReg()); + unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); // Encode the shift opcode. unsigned SBits = 0; @@ -1124,6 +1477,7 @@ getT2SORegOpValue(const MCInst &MI, unsigned OpIdx, case ARM_AM::lsl: SBits = 0x0; break; case ARM_AM::lsr: SBits = 0x2; break; case ARM_AM::asr: SBits = 0x4; break; + case ARM_AM::rrx: // FALLTHROUGH case ARM_AM::ror: SBits = 0x6; break; } @@ -1137,31 +1491,22 @@ getT2SORegOpValue(const MCInst &MI, unsigned OpIdx, unsigned ARMMCCodeEmitter:: getBitfieldInvertedMaskOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // 10 bits. lower 5 bits are are the lsb of the mask, high five bits are the // msb of the mask. const MCOperand &MO = MI.getOperand(Op); uint32_t v = ~MO.getImm(); - uint32_t lsb = CountTrailingZeros_32(v); - uint32_t msb = (32 - CountLeadingZeros_32 (v)) - 1; + uint32_t lsb = countTrailingZeros(v); + uint32_t msb = (32 - countLeadingZeros (v)) - 1; assert (v != 0 && lsb < 32 && msb < 32 && "Illegal bitfield mask!"); return lsb | (msb << 5); } -unsigned ARMMCCodeEmitter:: -getMsbOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { - // MSB - 5 bits. - uint32_t lsb = MI.getOperand(Op-1).getImm(); - uint32_t width = MI.getOperand(Op).getImm(); - uint32_t msb = lsb+width-1; - assert (width != 0 && msb < 32 && "Illegal bit width!"); - return msb; -} - unsigned ARMMCCodeEmitter:: getRegisterListOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // VLDM/VSTM: // {12-8} = Vd // {7-0} = Number of registers @@ -1169,14 +1514,14 @@ getRegisterListOpValue(const MCInst &MI, unsigned Op, // LDM/STM: // {15-0} = Bitfield of GPRs. unsigned Reg = MI.getOperand(Op).getReg(); - bool SPRRegs = llvm::ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg); - bool DPRRegs = llvm::ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg); + bool SPRRegs = ARMMCRegisterClasses[ARM::SPRRegClassID].contains(Reg); + bool DPRRegs = ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg); unsigned Binary = 0; if (SPRRegs || DPRRegs) { // VLDM/VSTM - unsigned RegNo = getARMRegisterNumbering(Reg); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg); unsigned NumRegs = (MI.getNumOperands() - Op) & 0xff; Binary |= (RegNo & 0x1f) << 8; if (SPRRegs) @@ -1185,7 +1530,7 @@ getRegisterListOpValue(const MCInst &MI, unsigned Op, Binary |= NumRegs * 2; } else { for (unsigned I = Op, E = MI.getNumOperands(); I < E; ++I) { - unsigned RegNo = getARMRegisterNumbering(MI.getOperand(I).getReg()); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(MI.getOperand(I).getReg()); Binary |= 1 << RegNo; } } @@ -1197,11 +1542,12 @@ getRegisterListOpValue(const MCInst &MI, unsigned Op, /// with the alignment operand. unsigned ARMMCCodeEmitter:: getAddrMode6AddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &Reg = MI.getOperand(Op); const MCOperand &Imm = MI.getOperand(Op + 1); - unsigned RegNo = getARMRegisterNumbering(Reg.getReg()); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg()); unsigned Align = 0; switch (Imm.getImm()) { @@ -1220,20 +1566,21 @@ getAddrMode6AddressOpValue(const MCInst &MI, unsigned Op, /// along with the alignment operand for use in VST1 and VLD1 with size 32. unsigned ARMMCCodeEmitter:: getAddrMode6OneLane32AddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &Reg = MI.getOperand(Op); const MCOperand &Imm = MI.getOperand(Op + 1); - unsigned RegNo = getARMRegisterNumbering(Reg.getReg()); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg()); unsigned Align = 0; switch (Imm.getImm()) { default: break; - case 2: - case 4: case 8: - case 16: Align = 0x00; break; - case 32: Align = 0x03; break; + case 16: + case 32: // Default '0' value for invalid alignments of 8, 16, 32 bytes. + case 2: Align = 0x00; break; + case 4: Align = 0x03; break; } return RegNo | (Align << 4); @@ -1246,11 +1593,12 @@ getAddrMode6OneLane32AddressOpValue(const MCInst &MI, unsigned Op, /// different for VLD4-dup. unsigned ARMMCCodeEmitter:: getAddrMode6DupAddressOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &Reg = MI.getOperand(Op); const MCOperand &Imm = MI.getOperand(Op + 1); - unsigned RegNo = getARMRegisterNumbering(Reg.getReg()); + unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg()); unsigned Align = 0; switch (Imm.getImm()) { @@ -1266,39 +1614,45 @@ getAddrMode6DupAddressOpValue(const MCInst &MI, unsigned Op, unsigned ARMMCCodeEmitter:: getAddrMode6OffsetOpValue(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { const MCOperand &MO = MI.getOperand(Op); if (MO.getReg() == 0) return 0x0D; - return MO.getReg(); + return CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); } unsigned ARMMCCodeEmitter:: getShiftRight8Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { return 8 - MI.getOperand(Op).getImm(); } unsigned ARMMCCodeEmitter:: getShiftRight16Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { return 16 - MI.getOperand(Op).getImm(); } unsigned ARMMCCodeEmitter:: getShiftRight32Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { return 32 - MI.getOperand(Op).getImm(); } unsigned ARMMCCodeEmitter:: getShiftRight64Imm(const MCInst &MI, unsigned Op, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { return 64 - MI.getOperand(Op).getImm(); } void ARMMCCodeEmitter:: EncodeInstruction(const MCInst &MI, raw_ostream &OS, - SmallVectorImpl &Fixups) const { + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { // Pseudo instructions don't get encoded. const MCInstrDesc &Desc = MCII.get(MI.getOpcode()); uint64_t TSFlags = Desc.TSFlags; @@ -1310,11 +1664,11 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, Size = Desc.getSize(); else llvm_unreachable("Unexpected instruction size!"); - - uint32_t Binary = getBinaryCodeForInstr(MI, Fixups); + + uint32_t Binary = getBinaryCodeForInstr(MI, Fixups, STI); // Thumb 32-bit wide instructions need to emit the high order halfword // first. - if (isThumb() && Size == 4) { + if (isThumb(STI) && Size == 4) { EmitConstant(Binary >> 16, 2, OS); EmitConstant(Binary & 0xffff, 2, OS); } else