#include "MCTargetDesc/MipsMCTargetDesc.h"
#include "MipsRegisterInfo.h"
+#include "MipsTargetStreamer.h"
+#include "llvm/ADT/APInt.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCParser/MCAsmLexer.h"
-#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
#include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
+namespace llvm {
+class MCInstrInfo;
+}
+
namespace {
class MipsAssemblerOptions {
public:
- MipsAssemblerOptions():
- aTReg(1), reorder(true), macro(true) {
- }
+ MipsAssemblerOptions() : aTReg(1), reorder(true), macro(true) {}
- unsigned getATRegNum() {return aTReg;}
+ unsigned getATRegNum() { return aTReg; }
bool setATReg(unsigned Reg);
- bool isReorder() {return reorder;}
- void setReorder() {reorder = true;}
- void setNoreorder() {reorder = false;}
+ bool isReorder() { return reorder; }
+ void setReorder() { reorder = true; }
+ void setNoreorder() { reorder = false; }
- bool isMacro() {return macro;}
- void setMacro() {macro = true;}
- void setNomacro() {macro = false;}
+ bool isMacro() { return macro; }
+ void setMacro() { macro = true; }
+ void setNomacro() { macro = false; }
private:
unsigned aTReg;
namespace {
class MipsAsmParser : public MCTargetAsmParser {
- enum FpFormatTy {
- FP_FORMAT_NONE = -1,
- FP_FORMAT_S,
- FP_FORMAT_D,
- FP_FORMAT_L,
- FP_FORMAT_W
- } FpFormat;
+ MipsTargetStreamer &getTargetStreamer() {
+ MCTargetStreamer &TS = *Parser.getStreamer().getTargetStreamer();
+ return static_cast<MipsTargetStreamer &>(TS);
+ }
MCSubtargetInfo &STI;
MCAsmParser &Parser;
MipsAssemblerOptions Options;
-
+ bool hasConsumedDollar;
#define GET_ASSEMBLER_HEADER
#include "MipsGenAsmMatcher.inc"
- bool MatchAndEmitInstruction(SMLoc IDLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands,
- MCStreamer &Out);
+ bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ MCStreamer &Out, unsigned &ErrorInfo,
+ bool MatchingInlineAsm);
bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
- bool ParseInstruction(StringRef Name, SMLoc NameLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands);
-
- bool parseMathOperation(StringRef Name, SMLoc NameLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands);
+ bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
+ SMLoc NameLoc,
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands);
bool ParseDirective(AsmToken DirectiveID);
MipsAsmParser::OperandMatchResultTy
- parseMemOperand(SmallVectorImpl<MCParsedAsmOperand*>&);
+ parseRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands, int RegKind);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSARegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands, int RegKind);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSACtrlRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMemOperand(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ bool parsePtrReg(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind);
+
+ MipsAsmParser::OperandMatchResultTy
+ parsePtrReg(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseGPR32(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseGPR64(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseHWRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseCCRRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseAFGR64Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseFGR64Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseFGR32Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseFGRH32Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseFCCRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseACC64DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseLO32DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseHI32DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseCOP2(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSA128BRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSA128HRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSA128WRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSA128DRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseMSA128CtrlRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseInvNum(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ MipsAsmParser::OperandMatchResultTy
+ parseLSAImm(SmallVectorImpl<MCParsedAsmOperand *> &Operands);
+
+ bool searchSymbolAlias(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ unsigned RegKind);
- bool ParseOperand(SmallVectorImpl<MCParsedAsmOperand*> &,
+ bool ParseOperand(SmallVectorImpl<MCParsedAsmOperand *> &,
StringRef Mnemonic);
- int tryParseRegister(StringRef Mnemonic);
+ int tryParseRegister(bool is64BitReg);
- bool tryParseRegisterOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
- StringRef Mnemonic);
+ bool tryParseRegisterOperand(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ bool is64BitReg);
bool needsExpansion(MCInst &Inst);
SmallVectorImpl<MCInst> &Instructions);
void expandLoadImm(MCInst &Inst, SMLoc IDLoc,
SmallVectorImpl<MCInst> &Instructions);
+ void expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+ void expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+ void expandMemInst(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions, bool isLoad,
+ bool isImmOpnd);
bool reportParseError(StringRef ErrorMsg);
- bool parseMemOffset(const MCExpr *&Res);
+ bool parseMemOffset(const MCExpr *&Res, bool isParenExpr);
bool parseRelocOperand(const MCExpr *&Res);
+ const MCExpr *evaluateRelocExpr(const MCExpr *Expr, StringRef RelocStr);
+
+ bool isEvaluated(const MCExpr *Expr);
bool parseDirectiveSet();
+ bool parseDirectiveMipsHackELFFlags();
+ bool parseDirectiveOption();
bool parseSetAtDirective();
bool parseSetNoAtDirective();
bool parseSetReorderDirective();
bool parseSetNoReorderDirective();
+ bool parseSetAssignment();
+
+ bool parseDirectiveWord(unsigned Size, SMLoc L);
+ bool parseDirectiveGpWord();
+
MCSymbolRefExpr::VariantKind getVariantKind(StringRef Symbol);
bool isMips64() const {
return (STI.getFeatureBits() & Mips::FeatureFP64Bit) != 0;
}
- int matchRegisterName(StringRef Symbol);
-
- int matchRegisterByNumber(unsigned RegNum, StringRef Mnemonic);
+ bool isN64() const { return STI.getFeatureBits() & Mips::FeatureN64; }
- void setFpFormat(FpFormatTy Format) {
- FpFormat = Format;
+ bool isMicroMips() const {
+ return STI.getFeatureBits() & Mips::FeatureMicroMips;
}
- void setDefaultFpFormat();
+ int matchRegisterName(StringRef Symbol, bool is64BitReg);
- void setFpFormat(StringRef Format);
+ int matchCPURegisterName(StringRef Symbol);
- FpFormatTy getFpFormat() {return FpFormat;}
+ int matchRegisterByNumber(unsigned RegNum, unsigned RegClass);
- bool requestsDoubleOperand(StringRef Mnemonic);
+ int matchFPURegisterName(StringRef Name);
- unsigned getReg(int RC,int RegNo);
+ int matchFCCRegisterName(StringRef Name);
+
+ int matchACRegisterName(StringRef Name);
+
+ int matchMSA128RegisterName(StringRef Name);
+
+ int matchMSA128CtrlRegisterName(StringRef Name);
+
+ int regKindToRegClass(int RegKind);
+
+ unsigned getReg(int RC, int RegNo);
+
+ int getATReg();
+
+ bool processInstruction(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions);
+
+ // Helper function that checks if the value of a vector index is within the
+ // boundaries of accepted values for each RegisterKind
+ // Example: INSERT.B $w0[n], $1 => 16 > n >= 0
+ bool validateMSAIndex(int Val, int RegKind);
- unsigned getATReg();
public:
- MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser)
- : MCTargetAsmParser(), STI(sti), Parser(parser) {
+ MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
+ const MCInstrInfo &MII)
+ : MCTargetAsmParser(), STI(sti), Parser(parser),
+ hasConsumedDollar(false) {
// Initialize the set of available features.
setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
}
MCAsmParser &getParser() const { return Parser; }
MCAsmLexer &getLexer() const { return Parser.getLexer(); }
-
};
}
/// instruction.
class MipsOperand : public MCParsedAsmOperand {
+public:
+ enum RegisterKind {
+ Kind_None,
+ Kind_GPR32,
+ Kind_GPR64,
+ Kind_HWRegs,
+ Kind_FGR32Regs,
+ Kind_FGRH32Regs,
+ Kind_FGR64Regs,
+ Kind_AFGR64Regs,
+ Kind_CCRRegs,
+ Kind_FCCRegs,
+ Kind_ACC64DSP,
+ Kind_LO32DSP,
+ Kind_HI32DSP,
+ Kind_COP2,
+ Kind_MSA128BRegs,
+ Kind_MSA128HRegs,
+ Kind_MSA128WRegs,
+ Kind_MSA128DRegs,
+ Kind_MSA128CtrlRegs
+ };
+
+private:
enum KindTy {
k_CondCode,
k_CoprocNum,
k_Memory,
k_PostIndexRegister,
k_Register,
- k_Token
+ k_PtrReg,
+ k_Token,
+ k_LSAImm
} Kind;
MipsOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
+ struct Token {
+ const char *Data;
+ unsigned Length;
+ };
+
+ struct RegOp {
+ unsigned RegNum;
+ RegisterKind Kind;
+ };
+
+ struct ImmOp {
+ const MCExpr *Val;
+ };
+
+ struct MemOp {
+ unsigned Base;
+ const MCExpr *Off;
+ };
+
union {
- struct {
- const char *Data;
- unsigned Length;
- } Tok;
-
- struct {
- unsigned RegNum;
- } Reg;
-
- struct {
- const MCExpr *Val;
- } Imm;
-
- struct {
- unsigned Base;
- const MCExpr *Off;
- } Mem;
+ struct Token Tok;
+ struct RegOp Reg;
+ struct ImmOp Imm;
+ struct MemOp Mem;
};
SMLoc StartLoc, EndLoc;
Inst.addOperand(MCOperand::CreateReg(getReg()));
}
- void addExpr(MCInst &Inst, const MCExpr *Expr) const{
+ void addPtrRegOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(getPtrReg()));
+ }
+
+ void addExpr(MCInst &Inst, const MCExpr *Expr) const {
// Add as immediate when possible. Null MCExpr = 0.
if (Expr == 0)
Inst.addOperand(MCOperand::CreateImm(0));
void addImmOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
const MCExpr *Expr = getImm();
- addExpr(Inst,Expr);
+ addExpr(Inst, Expr);
}
void addMemOperands(MCInst &Inst, unsigned N) const {
Inst.addOperand(MCOperand::CreateReg(getMemBase()));
const MCExpr *Expr = getMemOff();
- addExpr(Inst,Expr);
+ addExpr(Inst, Expr);
}
bool isReg() const { return Kind == k_Register; }
bool isImm() const { return Kind == k_Immediate; }
bool isToken() const { return Kind == k_Token; }
bool isMem() const { return Kind == k_Memory; }
+ bool isPtrReg() const { return Kind == k_PtrReg; }
+ bool isInvNum() const { return Kind == k_Immediate; }
+ bool isLSAImm() const { return Kind == k_LSAImm; }
StringRef getToken() const {
assert(Kind == k_Token && "Invalid access!");
return Reg.RegNum;
}
+ unsigned getPtrReg() const {
+ assert((Kind == k_PtrReg) && "Invalid access!");
+ return Reg.RegNum;
+ }
+
+ void setRegKind(RegisterKind RegKind) {
+ assert((Kind == k_Register || Kind == k_PtrReg) && "Invalid access!");
+ Reg.Kind = RegKind;
+ }
+
const MCExpr *getImm() const {
- assert((Kind == k_Immediate) && "Invalid access!");
+ assert((Kind == k_Immediate || Kind == k_LSAImm) && "Invalid access!");
return Imm.Val;
}
return Op;
}
+ static MipsOperand *CreatePtrReg(unsigned RegNum, SMLoc S, SMLoc E) {
+ MipsOperand *Op = new MipsOperand(k_PtrReg);
+ Op->Reg.RegNum = RegNum;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
static MipsOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
MipsOperand *Op = new MipsOperand(k_Immediate);
Op->Imm.Val = Val;
return Op;
}
+ static MipsOperand *CreateLSAImm(const MCExpr *Val, SMLoc S, SMLoc E) {
+ MipsOperand *Op = new MipsOperand(k_LSAImm);
+ Op->Imm.Val = Val;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
static MipsOperand *CreateMem(unsigned Base, const MCExpr *Off,
- SMLoc S, SMLoc E) {
+ SMLoc S, SMLoc E) {
MipsOperand *Op = new MipsOperand(k_Memory);
Op->Mem.Base = Base;
Op->Mem.Off = Off;
return Op;
}
+ bool isGPR32Asm() const {
+ return Kind == k_Register && Reg.Kind == Kind_GPR32;
+ }
+ void addRegAsmOperands(MCInst &Inst, unsigned N) const {
+ Inst.addOperand(MCOperand::CreateReg(Reg.RegNum));
+ }
+
+ bool isGPR64Asm() const {
+ return Kind == k_Register && Reg.Kind == Kind_GPR64;
+ }
+
+ bool isHWRegsAsm() const {
+ assert((Kind == k_Register) && "Invalid access!");
+ return Reg.Kind == Kind_HWRegs;
+ }
+
+ bool isCCRAsm() const {
+ assert((Kind == k_Register) && "Invalid access!");
+ return Reg.Kind == Kind_CCRRegs;
+ }
+
+ bool isAFGR64Asm() const {
+ return Kind == k_Register && Reg.Kind == Kind_AFGR64Regs;
+ }
+
+ bool isFGR64Asm() const {
+ return Kind == k_Register && Reg.Kind == Kind_FGR64Regs;
+ }
+
+ bool isFGR32Asm() const {
+ return (Kind == k_Register) && Reg.Kind == Kind_FGR32Regs;
+ }
+
+ bool isFGRH32Asm() const {
+ return (Kind == k_Register) && Reg.Kind == Kind_FGRH32Regs;
+ }
+
+ bool isFCCRegsAsm() const {
+ return (Kind == k_Register) && Reg.Kind == Kind_FCCRegs;
+ }
+
+ bool isACC64DSPAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_ACC64DSP;
+ }
+
+ bool isLO32DSPAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_LO32DSP;
+ }
+
+ bool isHI32DSPAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_HI32DSP;
+ }
+
+ bool isCOP2Asm() const { return Kind == k_Register && Reg.Kind == Kind_COP2; }
+
+ bool isMSA128BAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_MSA128BRegs;
+ }
+
+ bool isMSA128HAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_MSA128HRegs;
+ }
+
+ bool isMSA128WAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_MSA128WRegs;
+ }
+
+ bool isMSA128DAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_MSA128DRegs;
+ }
+
+ bool isMSA128CRAsm() const {
+ return Kind == k_Register && Reg.Kind == Kind_MSA128CtrlRegs;
+ }
+
/// getStartLoc - Get the location of the first token of this operand.
SMLoc getStartLoc() const { return StartLoc; }
/// getEndLoc - Get the location of the last token of this operand.
virtual void print(raw_ostream &OS) const {
llvm_unreachable("unimplemented!");
}
-};
+}; // class MipsOperand
+} // namespace
+
+namespace llvm {
+extern const MCInstrDesc MipsInsts[];
+}
+static const MCInstrDesc &getInstDesc(unsigned Opcode) {
+ return MipsInsts[Opcode];
}
-bool MipsAsmParser::needsExpansion(MCInst &Inst) {
+bool MipsAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
+ Inst.setLoc(IDLoc);
- switch(Inst.getOpcode()) {
- case Mips::LoadImm32Reg:
- return true;
+ if (MCID.isBranch() || MCID.isCall()) {
+ const unsigned Opcode = Inst.getOpcode();
+ MCOperand Offset;
+
+ switch (Opcode) {
default:
- return false;
+ break;
+ case Mips::BEQ:
+ case Mips::BNE:
+ assert (MCID.getNumOperands() == 3 && "unexpected number of operands");
+ Offset = Inst.getOperand(2);
+ if (!Offset.isImm())
+ break; // We'll deal with this situation later on when applying fixups.
+ if (!isIntN(isMicroMips() ? 17 : 18, Offset.getImm()))
+ return Error(IDLoc, "branch target out of range");
+ if (OffsetToAlignment (Offset.getImm(), 1LL << (isMicroMips() ? 1 : 2)))
+ return Error(IDLoc, "branch to misaligned address");
+ break;
+ case Mips::BGEZ:
+ case Mips::BGTZ:
+ case Mips::BLEZ:
+ case Mips::BLTZ:
+ case Mips::BGEZAL:
+ case Mips::BLTZAL:
+ case Mips::BC1F:
+ case Mips::BC1T:
+ assert (MCID.getNumOperands() == 2 && "unexpected number of operands");
+ Offset = Inst.getOperand(1);
+ if (!Offset.isImm())
+ break; // We'll deal with this situation later on when applying fixups.
+ if (!isIntN(isMicroMips() ? 17 : 18, Offset.getImm()))
+ return Error(IDLoc, "branch target out of range");
+ if (OffsetToAlignment (Offset.getImm(), 1LL << (isMicroMips() ? 1 : 2)))
+ return Error(IDLoc, "branch to misaligned address");
+ break;
+ }
+ }
+
+ if (MCID.hasDelaySlot() && Options.isReorder()) {
+ // If this instruction has a delay slot and .set reorder is active,
+ // emit a NOP after it.
+ Instructions.push_back(Inst);
+ MCInst NopInst;
+ NopInst.setOpcode(Mips::SLL);
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ NopInst.addOperand(MCOperand::CreateImm(0));
+ Instructions.push_back(NopInst);
+ return false;
+ }
+
+ if (MCID.mayLoad() || MCID.mayStore()) {
+ // Check the offset of memory operand, if it is a symbol
+ // reference or immediate we may have to expand instructions.
+ for (unsigned i = 0; i < MCID.getNumOperands(); i++) {
+ const MCOperandInfo &OpInfo = MCID.OpInfo[i];
+ if ((OpInfo.OperandType == MCOI::OPERAND_MEMORY) ||
+ (OpInfo.OperandType == MCOI::OPERAND_UNKNOWN)) {
+ MCOperand &Op = Inst.getOperand(i);
+ if (Op.isImm()) {
+ int MemOffset = Op.getImm();
+ if (MemOffset < -32768 || MemOffset > 32767) {
+ // Offset can't exceed 16bit value.
+ expandMemInst(Inst, IDLoc, Instructions, MCID.mayLoad(), true);
+ return false;
+ }
+ } else if (Op.isExpr()) {
+ const MCExpr *Expr = Op.getExpr();
+ if (Expr->getKind() == MCExpr::SymbolRef) {
+ const MCSymbolRefExpr *SR =
+ static_cast<const MCSymbolRefExpr *>(Expr);
+ if (SR->getKind() == MCSymbolRefExpr::VK_None) {
+ // Expand symbol.
+ expandMemInst(Inst, IDLoc, Instructions, MCID.mayLoad(), false);
+ return false;
+ }
+ } else if (!isEvaluated(Expr)) {
+ expandMemInst(Inst, IDLoc, Instructions, MCID.mayLoad(), false);
+ return false;
+ }
+ }
+ }
+ } // for
+ } // if load/store
+
+ if (needsExpansion(Inst))
+ expandInstruction(Inst, IDLoc, Instructions);
+ else
+ Instructions.push_back(Inst);
+
+ return false;
+}
+
+bool MipsAsmParser::needsExpansion(MCInst &Inst) {
+
+ switch (Inst.getOpcode()) {
+ case Mips::LoadImm32Reg:
+ case Mips::LoadAddr32Imm:
+ case Mips::LoadAddr32Reg:
+ return true;
+ default:
+ return false;
}
}
void MipsAsmParser::expandInstruction(MCInst &Inst, SMLoc IDLoc,
- SmallVectorImpl<MCInst> &Instructions){
- switch(Inst.getOpcode()) {
- case Mips::LoadImm32Reg:
- return expandLoadImm(Inst, IDLoc, Instructions);
- }
+ SmallVectorImpl<MCInst> &Instructions) {
+ switch (Inst.getOpcode()) {
+ case Mips::LoadImm32Reg:
+ return expandLoadImm(Inst, IDLoc, Instructions);
+ case Mips::LoadAddr32Imm:
+ return expandLoadAddressImm(Inst, IDLoc, Instructions);
+ case Mips::LoadAddr32Reg:
+ return expandLoadAddressReg(Inst, IDLoc, Instructions);
+ }
}
void MipsAsmParser::expandLoadImm(MCInst &Inst, SMLoc IDLoc,
- SmallVectorImpl<MCInst> &Instructions){
+ SmallVectorImpl<MCInst> &Instructions) {
MCInst tmpInst;
const MCOperand &ImmOp = Inst.getOperand(1);
- assert(ImmOp.isImm() && "expected imediate operand kind");
+ assert(ImmOp.isImm() && "expected immediate operand kind");
const MCOperand &RegOp = Inst.getOperand(0);
assert(RegOp.isReg() && "expected register operand kind");
int ImmValue = ImmOp.getImm();
tmpInst.setLoc(IDLoc);
- if ( 0 <= ImmValue && ImmValue <= 65535) {
- // for 0 <= j <= 65535.
+ if (0 <= ImmValue && ImmValue <= 65535) {
+ // For 0 <= j <= 65535.
// li d,j => ori d,$zero,j
- tmpInst.setOpcode(isMips64() ? Mips::ORi64 : Mips::ORi);
+ tmpInst.setOpcode(Mips::ORi);
tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
- tmpInst.addOperand(
- MCOperand::CreateReg(isMips64() ? Mips::ZERO_64 : Mips::ZERO));
+ tmpInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
Instructions.push_back(tmpInst);
- } else if ( ImmValue < 0 && ImmValue >= -32768) {
- // for -32768 <= j < 0.
+ } else if (ImmValue < 0 && ImmValue >= -32768) {
+ // For -32768 <= j < 0.
// li d,j => addiu d,$zero,j
- tmpInst.setOpcode(Mips::ADDiu); //TODO:no ADDiu64 in td files?
+ tmpInst.setOpcode(Mips::ADDiu);
tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
- tmpInst.addOperand(
- MCOperand::CreateReg(isMips64() ? Mips::ZERO_64 : Mips::ZERO));
+ tmpInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
Instructions.push_back(tmpInst);
} else {
- // for any other value of j that is representable as a 32-bit integer.
+ // For any other value of j that is representable as a 32-bit integer.
// li d,j => lui d,hi16(j)
- // ori d,d,lo16(j)
- tmpInst.setOpcode(isMips64() ? Mips::LUi64 : Mips::LUi);
+ // ori d,d,lo16(j)
+ tmpInst.setOpcode(Mips::LUi);
tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16));
Instructions.push_back(tmpInst);
tmpInst.clear();
- tmpInst.setOpcode(isMips64() ? Mips::ORi64 : Mips::ORi);
+ tmpInst.setOpcode(Mips::ORi);
tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff));
}
}
-bool MipsAsmParser::
-MatchAndEmitInstruction(SMLoc IDLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands,
- MCStreamer &Out) {
+void
+MipsAsmParser::expandLoadAddressReg(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ MCInst tmpInst;
+ const MCOperand &ImmOp = Inst.getOperand(2);
+ assert(ImmOp.isImm() && "expected immediate operand kind");
+ const MCOperand &SrcRegOp = Inst.getOperand(1);
+ assert(SrcRegOp.isReg() && "expected register operand kind");
+ const MCOperand &DstRegOp = Inst.getOperand(0);
+ assert(DstRegOp.isReg() && "expected register operand kind");
+ int ImmValue = ImmOp.getImm();
+ if (-32768 <= ImmValue && ImmValue <= 65535) {
+ // For -32768 <= j <= 65535.
+ // la d,j(s) => addiu d,s,j
+ tmpInst.setOpcode(Mips::ADDiu);
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(SrcRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
+ Instructions.push_back(tmpInst);
+ } else {
+ // For any other value of j that is representable as a 32-bit integer.
+ // la d,j(s) => lui d,hi16(j)
+ // ori d,d,lo16(j)
+ // addu d,d,s
+ tmpInst.setOpcode(Mips::LUi);
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16));
+ Instructions.push_back(tmpInst);
+ tmpInst.clear();
+ tmpInst.setOpcode(Mips::ORi);
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff));
+ Instructions.push_back(tmpInst);
+ tmpInst.clear();
+ tmpInst.setOpcode(Mips::ADDu);
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(DstRegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(SrcRegOp.getReg()));
+ Instructions.push_back(tmpInst);
+ }
+}
+
+void
+MipsAsmParser::expandLoadAddressImm(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions) {
+ MCInst tmpInst;
+ const MCOperand &ImmOp = Inst.getOperand(1);
+ assert(ImmOp.isImm() && "expected immediate operand kind");
+ const MCOperand &RegOp = Inst.getOperand(0);
+ assert(RegOp.isReg() && "expected register operand kind");
+ int ImmValue = ImmOp.getImm();
+ if (-32768 <= ImmValue && ImmValue <= 65535) {
+ // For -32768 <= j <= 65535.
+ // la d,j => addiu d,$zero,j
+ tmpInst.setOpcode(Mips::ADDiu);
+ tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(Mips::ZERO));
+ tmpInst.addOperand(MCOperand::CreateImm(ImmValue));
+ Instructions.push_back(tmpInst);
+ } else {
+ // For any other value of j that is representable as a 32-bit integer.
+ // la d,j => lui d,hi16(j)
+ // ori d,d,lo16(j)
+ tmpInst.setOpcode(Mips::LUi);
+ tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateImm((ImmValue & 0xffff0000) >> 16));
+ Instructions.push_back(tmpInst);
+ tmpInst.clear();
+ tmpInst.setOpcode(Mips::ORi);
+ tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateReg(RegOp.getReg()));
+ tmpInst.addOperand(MCOperand::CreateImm(ImmValue & 0xffff));
+ Instructions.push_back(tmpInst);
+ }
+}
+
+void MipsAsmParser::expandMemInst(MCInst &Inst, SMLoc IDLoc,
+ SmallVectorImpl<MCInst> &Instructions,
+ bool isLoad, bool isImmOpnd) {
+ const MCSymbolRefExpr *SR;
+ MCInst TempInst;
+ unsigned ImmOffset, HiOffset, LoOffset;
+ const MCExpr *ExprOffset;
+ unsigned TmpRegNum;
+ unsigned AtRegNum = getReg(
+ (isMips64()) ? Mips::GPR64RegClassID : Mips::GPR32RegClassID, getATReg());
+ // 1st operand is either the source or destination register.
+ assert(Inst.getOperand(0).isReg() && "expected register operand kind");
+ unsigned RegOpNum = Inst.getOperand(0).getReg();
+ // 2nd operand is the base register.
+ assert(Inst.getOperand(1).isReg() && "expected register operand kind");
+ unsigned BaseRegNum = Inst.getOperand(1).getReg();
+ // 3rd operand is either an immediate or expression.
+ if (isImmOpnd) {
+ assert(Inst.getOperand(2).isImm() && "expected immediate operand kind");
+ ImmOffset = Inst.getOperand(2).getImm();
+ LoOffset = ImmOffset & 0x0000ffff;
+ HiOffset = (ImmOffset & 0xffff0000) >> 16;
+ // If msb of LoOffset is 1(negative number) we must increment HiOffset.
+ if (LoOffset & 0x8000)
+ HiOffset++;
+ } else
+ ExprOffset = Inst.getOperand(2).getExpr();
+ // All instructions will have the same location.
+ TempInst.setLoc(IDLoc);
+ // 1st instruction in expansion is LUi. For load instruction we can use
+ // the dst register as a temporary if base and dst are different,
+ // but for stores we must use $at.
+ TmpRegNum = (isLoad && (BaseRegNum != RegOpNum)) ? RegOpNum : AtRegNum;
+ TempInst.setOpcode(Mips::LUi);
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ if (isImmOpnd)
+ TempInst.addOperand(MCOperand::CreateImm(HiOffset));
+ else {
+ if (ExprOffset->getKind() == MCExpr::SymbolRef) {
+ SR = static_cast<const MCSymbolRefExpr *>(ExprOffset);
+ const MCSymbolRefExpr *HiExpr = MCSymbolRefExpr::Create(
+ SR->getSymbol().getName(), MCSymbolRefExpr::VK_Mips_ABS_HI,
+ getContext());
+ TempInst.addOperand(MCOperand::CreateExpr(HiExpr));
+ } else {
+ const MCExpr *HiExpr = evaluateRelocExpr(ExprOffset, "hi");
+ TempInst.addOperand(MCOperand::CreateExpr(HiExpr));
+ }
+ }
+ // Add the instruction to the list.
+ Instructions.push_back(TempInst);
+ // Prepare TempInst for next instruction.
+ TempInst.clear();
+ // Add temp register to base.
+ TempInst.setOpcode(Mips::ADDu);
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ TempInst.addOperand(MCOperand::CreateReg(BaseRegNum));
+ Instructions.push_back(TempInst);
+ TempInst.clear();
+ // And finaly, create original instruction with low part
+ // of offset and new base.
+ TempInst.setOpcode(Inst.getOpcode());
+ TempInst.addOperand(MCOperand::CreateReg(RegOpNum));
+ TempInst.addOperand(MCOperand::CreateReg(TmpRegNum));
+ if (isImmOpnd)
+ TempInst.addOperand(MCOperand::CreateImm(LoOffset));
+ else {
+ if (ExprOffset->getKind() == MCExpr::SymbolRef) {
+ const MCSymbolRefExpr *LoExpr = MCSymbolRefExpr::Create(
+ SR->getSymbol().getName(), MCSymbolRefExpr::VK_Mips_ABS_LO,
+ getContext());
+ TempInst.addOperand(MCOperand::CreateExpr(LoExpr));
+ } else {
+ const MCExpr *LoExpr = evaluateRelocExpr(ExprOffset, "lo");
+ TempInst.addOperand(MCOperand::CreateExpr(LoExpr));
+ }
+ }
+ Instructions.push_back(TempInst);
+ TempInst.clear();
+}
+
+bool MipsAsmParser::MatchAndEmitInstruction(
+ SMLoc IDLoc, unsigned &Opcode,
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands, MCStreamer &Out,
+ unsigned &ErrorInfo, bool MatchingInlineAsm) {
MCInst Inst;
- unsigned Kind;
- unsigned ErrorInfo;
- MatchInstMapAndConstraints MapAndConstraints;
- unsigned MatchResult = MatchInstructionImpl(Operands, Kind, Inst,
- MapAndConstraints, ErrorInfo,
- /*matchingInlineAsm*/ false);
+ SmallVector<MCInst, 8> Instructions;
+ unsigned MatchResult =
+ MatchInstructionImpl(Operands, Inst, ErrorInfo, MatchingInlineAsm);
switch (MatchResult) {
- default: break;
+ default:
+ break;
case Match_Success: {
- if (needsExpansion(Inst)) {
- SmallVector<MCInst, 4> Instructions;
- expandInstruction(Inst, IDLoc, Instructions);
- for(unsigned i =0; i < Instructions.size(); i++){
- Out.EmitInstruction(Instructions[i]);
- }
- } else {
- Inst.setLoc(IDLoc);
- Out.EmitInstruction(Inst);
- }
+ if (processInstruction(Inst, IDLoc, Instructions))
+ return true;
+ for (unsigned i = 0; i < Instructions.size(); i++)
+ Out.EmitInstruction(Instructions[i]);
return false;
}
case Match_MissingFeature:
if (ErrorInfo >= Operands.size())
return Error(IDLoc, "too few operands for instruction");
- ErrorLoc = ((MipsOperand*)Operands[ErrorInfo])->getStartLoc();
- if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
+ ErrorLoc = ((MipsOperand *)Operands[ErrorInfo])->getStartLoc();
+ if (ErrorLoc == SMLoc())
+ ErrorLoc = IDLoc;
}
return Error(ErrorLoc, "invalid operand for instruction");
return true;
}
-int MipsAsmParser::matchRegisterName(StringRef Name) {
-
- int CC;
- if (!isMips64())
- CC = StringSwitch<unsigned>(Name)
- .Case("zero", Mips::ZERO)
- .Case("a0", Mips::A0)
- .Case("a1", Mips::A1)
- .Case("a2", Mips::A2)
- .Case("a3", Mips::A3)
- .Case("v0", Mips::V0)
- .Case("v1", Mips::V1)
- .Case("s0", Mips::S0)
- .Case("s1", Mips::S1)
- .Case("s2", Mips::S2)
- .Case("s3", Mips::S3)
- .Case("s4", Mips::S4)
- .Case("s5", Mips::S5)
- .Case("s6", Mips::S6)
- .Case("s7", Mips::S7)
- .Case("k0", Mips::K0)
- .Case("k1", Mips::K1)
- .Case("sp", Mips::SP)
- .Case("fp", Mips::FP)
- .Case("gp", Mips::GP)
- .Case("ra", Mips::RA)
- .Case("t0", Mips::T0)
- .Case("t1", Mips::T1)
- .Case("t2", Mips::T2)
- .Case("t3", Mips::T3)
- .Case("t4", Mips::T4)
- .Case("t5", Mips::T5)
- .Case("t6", Mips::T6)
- .Case("t7", Mips::T7)
- .Case("t8", Mips::T8)
- .Case("t9", Mips::T9)
- .Case("at", Mips::AT)
- .Case("fcc0", Mips::FCC0)
- .Default(-1);
- else
+int MipsAsmParser::matchCPURegisterName(StringRef Name) {
+ int CC;
+
+ if (Name == "at")
+ return getATReg();
+
+ CC = StringSwitch<unsigned>(Name)
+ .Case("zero", 0)
+ .Case("a0", 4)
+ .Case("a1", 5)
+ .Case("a2", 6)
+ .Case("a3", 7)
+ .Case("v0", 2)
+ .Case("v1", 3)
+ .Case("s0", 16)
+ .Case("s1", 17)
+ .Case("s2", 18)
+ .Case("s3", 19)
+ .Case("s4", 20)
+ .Case("s5", 21)
+ .Case("s6", 22)
+ .Case("s7", 23)
+ .Case("k0", 26)
+ .Case("k1", 27)
+ .Case("sp", 29)
+ .Case("fp", 30)
+ .Case("gp", 28)
+ .Case("ra", 31)
+ .Case("t0", 8)
+ .Case("t1", 9)
+ .Case("t2", 10)
+ .Case("t3", 11)
+ .Case("t4", 12)
+ .Case("t5", 13)
+ .Case("t6", 14)
+ .Case("t7", 15)
+ .Case("t8", 24)
+ .Case("t9", 25)
+ .Default(-1);
+
+ // Although SGI documentation just cuts out t0-t3 for n32/n64,
+ // GNU pushes the values of t0-t3 to override the o32/o64 values for t4-t7
+ // We are supporting both cases, so for t0-t3 we'll just push them to t4-t7.
+ if (isMips64() && 8 <= CC && CC <= 11)
+ CC += 4;
+
+ if (CC == -1 && isMips64())
CC = StringSwitch<unsigned>(Name)
- .Case("zero", Mips::ZERO_64)
- .Case("at", Mips::AT_64)
- .Case("v0", Mips::V0_64)
- .Case("v1", Mips::V1_64)
- .Case("a0", Mips::A0_64)
- .Case("a1", Mips::A1_64)
- .Case("a2", Mips::A2_64)
- .Case("a3", Mips::A3_64)
- .Case("a4", Mips::T0_64)
- .Case("a5", Mips::T1_64)
- .Case("a6", Mips::T2_64)
- .Case("a7", Mips::T3_64)
- .Case("t4", Mips::T4_64)
- .Case("t5", Mips::T5_64)
- .Case("t6", Mips::T6_64)
- .Case("t7", Mips::T7_64)
- .Case("s0", Mips::S0_64)
- .Case("s1", Mips::S1_64)
- .Case("s2", Mips::S2_64)
- .Case("s3", Mips::S3_64)
- .Case("s4", Mips::S4_64)
- .Case("s5", Mips::S5_64)
- .Case("s6", Mips::S6_64)
- .Case("s7", Mips::S7_64)
- .Case("t8", Mips::T8_64)
- .Case("t9", Mips::T9_64)
- .Case("kt0", Mips::K0_64)
- .Case("kt1", Mips::K1_64)
- .Case("gp", Mips::GP_64)
- .Case("sp", Mips::SP_64)
- .Case("fp", Mips::FP_64)
- .Case("s8", Mips::FP_64)
- .Case("ra", Mips::RA_64)
- .Default(-1);
+ .Case("a4", 8)
+ .Case("a5", 9)
+ .Case("a6", 10)
+ .Case("a7", 11)
+ .Case("kt0", 26)
+ .Case("kt1", 27)
+ .Case("s8", 30)
+ .Default(-1);
- if (CC != -1)
- return CC;
+ return CC;
+}
+
+int MipsAsmParser::matchFPURegisterName(StringRef Name) {
if (Name[0] == 'f') {
StringRef NumString = Name.substr(1);
unsigned IntVal;
- if( NumString.getAsInteger(10, IntVal))
- return -1; // not integer
- if (IntVal > 31)
+ if (NumString.getAsInteger(10, IntVal))
+ return -1; // This is not an integer.
+ if (IntVal > 31) // Maximum index for fpu register.
return -1;
+ return IntVal;
+ }
+ return -1;
+}
- FpFormatTy Format = getFpFormat();
+int MipsAsmParser::matchFCCRegisterName(StringRef Name) {
- if (Format == FP_FORMAT_S || Format == FP_FORMAT_W)
- return getReg(Mips::FGR32RegClassID, IntVal);
- if (Format == FP_FORMAT_D) {
- if(isFP64()) {
- return getReg(Mips::FGR64RegClassID, IntVal);
- }
- // only even numbers available as register pairs
- if (( IntVal > 31) || (IntVal%2 != 0))
- return -1;
- return getReg(Mips::AFGR64RegClassID, IntVal/2);
- }
+ if (Name.startswith("fcc")) {
+ StringRef NumString = Name.substr(3);
+ unsigned IntVal;
+ if (NumString.getAsInteger(10, IntVal))
+ return -1; // This is not an integer.
+ if (IntVal > 7) // There are only 8 fcc registers.
+ return -1;
+ return IntVal;
}
-
return -1;
}
-void MipsAsmParser::setDefaultFpFormat() {
- if (isMips64() || isFP64())
- FpFormat = FP_FORMAT_D;
- else
- FpFormat = FP_FORMAT_S;
+int MipsAsmParser::matchACRegisterName(StringRef Name) {
+
+ if (Name.startswith("ac")) {
+ StringRef NumString = Name.substr(2);
+ unsigned IntVal;
+ if (NumString.getAsInteger(10, IntVal))
+ return -1; // This is not an integer.
+ if (IntVal > 3) // There are only 3 acc registers.
+ return -1;
+ return IntVal;
+ }
+ return -1;
}
-bool MipsAsmParser::requestsDoubleOperand(StringRef Mnemonic){
+int MipsAsmParser::matchMSA128RegisterName(StringRef Name) {
+ unsigned IntVal;
- bool IsDouble = StringSwitch<bool>(Mnemonic.lower())
- .Case("ldxc1", true)
- .Case("ldc1", true)
- .Case("sdxc1", true)
- .Case("sdc1", true)
- .Default(false);
+ if (Name.front() != 'w' || Name.drop_front(1).getAsInteger(10, IntVal))
+ return -1;
- return IsDouble;
-}
-void MipsAsmParser::setFpFormat(StringRef Format) {
+ if (IntVal > 31)
+ return -1;
- FpFormat = StringSwitch<FpFormatTy>(Format.lower())
- .Case(".s", FP_FORMAT_S)
- .Case(".d", FP_FORMAT_D)
- .Case(".l", FP_FORMAT_L)
- .Case(".w", FP_FORMAT_W)
- .Default(FP_FORMAT_NONE);
+ return IntVal;
}
-bool MipsAssemblerOptions::setATReg(unsigned Reg) {
- if (Reg > 31)
- return false;
-
- aTReg = Reg;
- return true;
-}
+int MipsAsmParser::matchMSA128CtrlRegisterName(StringRef Name) {
+ int CC;
-unsigned MipsAsmParser::getATReg() {
- unsigned Reg = Options.getATRegNum();
- if (isMips64())
- return getReg(Mips::CPU64RegsRegClassID,Reg);
-
- return getReg(Mips::CPURegsRegClassID,Reg);
-}
+ CC = StringSwitch<unsigned>(Name)
+ .Case("msair", 0)
+ .Case("msacsr", 1)
+ .Case("msaaccess", 2)
+ .Case("msasave", 3)
+ .Case("msamodify", 4)
+ .Case("msarequest", 5)
+ .Case("msamap", 6)
+ .Case("msaunmap", 7)
+ .Default(-1);
-unsigned MipsAsmParser::getReg(int RC,int RegNo) {
- return *(getContext().getRegisterInfo().getRegClass(RC).begin() + RegNo);
+ return CC;
}
-int MipsAsmParser::matchRegisterByNumber(unsigned RegNum, StringRef Mnemonic) {
+int MipsAsmParser::matchRegisterName(StringRef Name, bool is64BitReg) {
- if (Mnemonic.lower() == "rdhwr") {
- // at the moment only hwreg29 is supported
- if (RegNum != 29)
- return -1;
- return Mips::HWR29;
+ int CC;
+ CC = matchCPURegisterName(Name);
+ if (CC != -1)
+ return matchRegisterByNumber(CC, is64BitReg ? Mips::GPR64RegClassID
+ : Mips::GPR32RegClassID);
+ CC = matchFPURegisterName(Name);
+ // TODO: decide about fpu register class
+ if (CC != -1)
+ return matchRegisterByNumber(CC, isFP64() ? Mips::FGR64RegClassID
+ : Mips::FGR32RegClassID);
+ return matchMSA128RegisterName(Name);
+}
+
+int MipsAsmParser::regKindToRegClass(int RegKind) {
+
+ switch (RegKind) {
+ case MipsOperand::Kind_GPR32:
+ return Mips::GPR32RegClassID;
+ case MipsOperand::Kind_GPR64:
+ return Mips::GPR64RegClassID;
+ case MipsOperand::Kind_HWRegs:
+ return Mips::HWRegsRegClassID;
+ case MipsOperand::Kind_FGR32Regs:
+ return Mips::FGR32RegClassID;
+ case MipsOperand::Kind_FGRH32Regs:
+ return Mips::FGRH32RegClassID;
+ case MipsOperand::Kind_FGR64Regs:
+ return Mips::FGR64RegClassID;
+ case MipsOperand::Kind_AFGR64Regs:
+ return Mips::AFGR64RegClassID;
+ case MipsOperand::Kind_CCRRegs:
+ return Mips::CCRRegClassID;
+ case MipsOperand::Kind_ACC64DSP:
+ return Mips::ACC64DSPRegClassID;
+ case MipsOperand::Kind_FCCRegs:
+ return Mips::FCCRegClassID;
+ case MipsOperand::Kind_MSA128BRegs:
+ return Mips::MSA128BRegClassID;
+ case MipsOperand::Kind_MSA128HRegs:
+ return Mips::MSA128HRegClassID;
+ case MipsOperand::Kind_MSA128WRegs:
+ return Mips::MSA128WRegClassID;
+ case MipsOperand::Kind_MSA128DRegs:
+ return Mips::MSA128DRegClassID;
+ case MipsOperand::Kind_MSA128CtrlRegs:
+ return Mips::MSACtrlRegClassID;
+ default:
+ return -1;
}
+}
+
+bool MipsAssemblerOptions::setATReg(unsigned Reg) {
+ if (Reg > 31)
+ return false;
- if (RegNum > 31)
+ aTReg = Reg;
+ return true;
+}
+
+int MipsAsmParser::getATReg() { return Options.getATRegNum(); }
+
+unsigned MipsAsmParser::getReg(int RC, int RegNo) {
+ return *(getContext().getRegisterInfo()->getRegClass(RC).begin() + RegNo);
+}
+
+int MipsAsmParser::matchRegisterByNumber(unsigned RegNum, unsigned RegClass) {
+ if (RegNum >
+ getContext().getRegisterInfo()->getRegClass(RegClass).getNumRegs())
return -1;
- // MIPS64 registers are numbered 1 after the 32-bit equivalents
- return getReg(Mips::CPURegsRegClassID, RegNum) + isMips64();
+ return getReg(RegClass, RegNum);
}
-int MipsAsmParser::tryParseRegister(StringRef Mnemonic) {
+int MipsAsmParser::tryParseRegister(bool is64BitReg) {
const AsmToken &Tok = Parser.getTok();
int RegNum = -1;
if (Tok.is(AsmToken::Identifier)) {
std::string lowerCase = Tok.getString().lower();
- RegNum = matchRegisterName(lowerCase);
+ RegNum = matchRegisterName(lowerCase, is64BitReg);
} else if (Tok.is(AsmToken::Integer))
RegNum = matchRegisterByNumber(static_cast<unsigned>(Tok.getIntVal()),
- Mnemonic.lower());
- else
- return RegNum; //error
- // 64 bit div operations require Mips::ZERO instead of MIPS::ZERO_64
- if (isMips64() && RegNum == Mips::ZERO_64) {
- if (Mnemonic.find("ddiv") != StringRef::npos)
- RegNum = Mips::ZERO;
- }
+ is64BitReg ? Mips::GPR64RegClassID
+ : Mips::GPR32RegClassID);
return RegNum;
}
-bool MipsAsmParser::
- tryParseRegisterOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
- StringRef Mnemonic){
+bool MipsAsmParser::tryParseRegisterOperand(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands, bool is64BitReg) {
SMLoc S = Parser.getTok().getLoc();
int RegNo = -1;
- // FIXME: we should make a more generic method for CCR
- if ((Mnemonic == "cfc1" || Mnemonic == "ctc1")
- && Operands.size() == 2 && Parser.getTok().is(AsmToken::Integer)){
- RegNo = Parser.getTok().getIntVal(); // get the int value
- // at the moment only fcc0 is supported
- if (RegNo == 0)
- RegNo = Mips::FCC0;
- } else
- RegNo = tryParseRegister(Mnemonic);
+ RegNo = tryParseRegister(is64BitReg);
if (RegNo == -1)
return true;
- Operands.push_back(MipsOperand::CreateReg(RegNo, S,
- Parser.getTok().getLoc()));
+ Operands.push_back(
+ MipsOperand::CreateReg(RegNo, S, Parser.getTok().getLoc()));
Parser.Lex(); // Eat register token.
return false;
}
-bool MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand*>&Operands,
- StringRef Mnemonic) {
+bool
+MipsAsmParser::ParseOperand(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ StringRef Mnemonic) {
// Check if the current operand has a custom associated parser, if so, try to
// custom parse the operand, or fallback to the general approach.
OperandMatchResultTy ResTy = MatchOperandParserImpl(Operands, Mnemonic);
Error(Parser.getTok().getLoc(), "unexpected token in operand");
return true;
case AsmToken::Dollar: {
- // parse register
+ // Parse the register.
SMLoc S = Parser.getTok().getLoc();
Parser.Lex(); // Eat dollar token.
- // parse register operand
- if (!tryParseRegisterOperand(Operands, Mnemonic)) {
+ // Parse the register operand.
+ if (!tryParseRegisterOperand(Operands, isMips64())) {
if (getLexer().is(AsmToken::LParen)) {
- // check if it is indexed addressing operand
+ // Check if it is indexed addressing operand.
Operands.push_back(MipsOperand::CreateToken("(", S));
- Parser.Lex(); // eat parenthesis
+ Parser.Lex(); // Eat the parenthesis.
if (getLexer().isNot(AsmToken::Dollar))
return true;
- Parser.Lex(); // eat dollar
- if (tryParseRegisterOperand(Operands, Mnemonic))
+ Parser.Lex(); // Eat the dollar
+ if (tryParseRegisterOperand(Operands, isMips64()))
return true;
if (!getLexer().is(AsmToken::RParen))
}
return false;
}
- // maybe it is a symbol reference
+ // Maybe it is a symbol reference.
StringRef Identifier;
- if (Parser.ParseIdentifier(Identifier))
+ if (Parser.parseIdentifier(Identifier))
return true;
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
-
MCSymbol *Sym = getContext().GetOrCreateSymbol("$" + Identifier);
-
- // Otherwise create a symbol ref.
- const MCExpr *Res = MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None,
- getContext());
+ // Otherwise create a symbol reference.
+ const MCExpr *Res =
+ MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None, getContext());
Operands.push_back(MipsOperand::CreateImm(Res, S, E));
return false;
}
case AsmToken::Identifier:
+ // For instruction aliases like "bc1f $Label" dedicated parser will
+ // eat the '$' sign before failing. So in order to look for appropriate
+ // label we must check first if we have already consumed '$'.
+ if (hasConsumedDollar) {
+ hasConsumedDollar = false;
+ SMLoc S = Parser.getTok().getLoc();
+ StringRef Identifier;
+ if (Parser.parseIdentifier(Identifier))
+ return true;
+ SMLoc E =
+ SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
+ MCSymbol *Sym = getContext().GetOrCreateSymbol("$" + Identifier);
+ // Create a symbol reference.
+ const MCExpr *Res =
+ MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_None, getContext());
+
+ Operands.push_back(MipsOperand::CreateImm(Res, S, E));
+ return false;
+ }
+ // Look for the existing symbol, we should check if
+ // we need to assigne the propper RegisterKind.
+ if (searchSymbolAlias(Operands, MipsOperand::Kind_None))
+ return false;
+ // Else drop to expression parsing.
case AsmToken::LParen:
case AsmToken::Minus:
case AsmToken::Plus:
case AsmToken::Integer:
case AsmToken::String: {
- // quoted label names
+ // Quoted label names.
const MCExpr *IdVal;
SMLoc S = Parser.getTok().getLoc();
- if (getParser().ParseExpression(IdVal))
+ if (getParser().parseExpression(IdVal))
return true;
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
Operands.push_back(MipsOperand::CreateImm(IdVal, S, E));
return false;
}
case AsmToken::Percent: {
- // it is a symbol reference or constant expression
+ // It is a symbol reference or constant expression.
const MCExpr *IdVal;
- SMLoc S = Parser.getTok().getLoc(); // start location of the operand
+ SMLoc S = Parser.getTok().getLoc(); // Start location of the operand.
if (parseRelocOperand(IdVal))
return true;
return true;
}
-bool MipsAsmParser::parseRelocOperand(const MCExpr *&Res) {
+const MCExpr *MipsAsmParser::evaluateRelocExpr(const MCExpr *Expr,
+ StringRef RelocStr) {
+ const MCExpr *Res;
+ // Check the type of the expression.
+ if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Expr)) {
+ // It's a constant, evaluate lo or hi value.
+ if (RelocStr == "lo") {
+ short Val = MCE->getValue();
+ Res = MCConstantExpr::Create(Val, getContext());
+ } else if (RelocStr == "hi") {
+ int Val = MCE->getValue();
+ int LoSign = Val & 0x8000;
+ Val = (Val & 0xffff0000) >> 16;
+ // Lower part is treated as a signed int, so if it is negative
+ // we must add 1 to the hi part to compensate.
+ if (LoSign)
+ Val++;
+ Res = MCConstantExpr::Create(Val, getContext());
+ } else {
+ llvm_unreachable("Invalid RelocStr value");
+ }
+ return Res;
+ }
- Parser.Lex(); // eat % token
- const AsmToken &Tok = Parser.getTok(); // get next token, operation
+ if (const MCSymbolRefExpr *MSRE = dyn_cast<MCSymbolRefExpr>(Expr)) {
+ // It's a symbol, create a symbolic expression from the symbol.
+ StringRef Symbol = MSRE->getSymbol().getName();
+ MCSymbolRefExpr::VariantKind VK = getVariantKind(RelocStr);
+ Res = MCSymbolRefExpr::Create(Symbol, VK, getContext());
+ return Res;
+ }
+
+ if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr)) {
+ const MCExpr *LExp = evaluateRelocExpr(BE->getLHS(), RelocStr);
+ const MCExpr *RExp = evaluateRelocExpr(BE->getRHS(), RelocStr);
+ Res = MCBinaryExpr::Create(BE->getOpcode(), LExp, RExp, getContext());
+ return Res;
+ }
+
+ if (const MCUnaryExpr *UN = dyn_cast<MCUnaryExpr>(Expr)) {
+ const MCExpr *UnExp = evaluateRelocExpr(UN->getSubExpr(), RelocStr);
+ Res = MCUnaryExpr::Create(UN->getOpcode(), UnExp, getContext());
+ return Res;
+ }
+ // Just return the original expression.
+ return Expr;
+}
+
+bool MipsAsmParser::isEvaluated(const MCExpr *Expr) {
+
+ switch (Expr->getKind()) {
+ case MCExpr::Constant:
+ return true;
+ case MCExpr::SymbolRef:
+ return (cast<MCSymbolRefExpr>(Expr)->getKind() != MCSymbolRefExpr::VK_None);
+ case MCExpr::Binary:
+ if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr)) {
+ if (!isEvaluated(BE->getLHS()))
+ return false;
+ return isEvaluated(BE->getRHS());
+ }
+ case MCExpr::Unary:
+ return isEvaluated(cast<MCUnaryExpr>(Expr)->getSubExpr());
+ default:
+ return false;
+ }
+ return false;
+}
+
+bool MipsAsmParser::parseRelocOperand(const MCExpr *&Res) {
+ Parser.Lex(); // Eat the % token.
+ const AsmToken &Tok = Parser.getTok(); // Get next token, operation.
if (Tok.isNot(AsmToken::Identifier))
return true;
std::string Str = Tok.getIdentifier().str();
- Parser.Lex(); // eat identifier
- // now make expression from the rest of the operand
+ Parser.Lex(); // Eat the identifier.
+ // Now make an expression from the rest of the operand.
const MCExpr *IdVal;
SMLoc EndLoc;
if (getLexer().getKind() == AsmToken::LParen) {
while (1) {
- Parser.Lex(); // eat '(' token
+ Parser.Lex(); // Eat the '(' token.
if (getLexer().getKind() == AsmToken::Percent) {
- Parser.Lex(); // eat % token
+ Parser.Lex(); // Eat the % token.
const AsmToken &nextTok = Parser.getTok();
if (nextTok.isNot(AsmToken::Identifier))
return true;
Str += "(%";
Str += nextTok.getIdentifier();
- Parser.Lex(); // eat identifier
+ Parser.Lex(); // Eat the identifier.
if (getLexer().getKind() != AsmToken::LParen)
return true;
} else
break;
}
- if (getParser().ParseParenExpression(IdVal,EndLoc))
+ if (getParser().parseParenExpression(IdVal, EndLoc))
return true;
while (getLexer().getKind() == AsmToken::RParen)
- Parser.Lex(); // eat ')' token
+ Parser.Lex(); // Eat the ')' token.
} else
- return true; // parenthesis must follow reloc operand
-
- // Check the type of the expression
- if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(IdVal)) {
- // it's a constant, evaluate lo or hi value
- int Val = MCE->getValue();
- if (Str == "lo") {
- Val = Val & 0xffff;
- } else if (Str == "hi") {
- Val = (Val & 0xffff0000) >> 16;
- }
- Res = MCConstantExpr::Create(Val, getContext());
- return false;
- }
+ return true; // Parenthesis must follow the relocation operand.
- if (const MCSymbolRefExpr *MSRE = dyn_cast<MCSymbolRefExpr>(IdVal)) {
- // it's a symbol, create symbolic expression from symbol
- StringRef Symbol = MSRE->getSymbol().getName();
- MCSymbolRefExpr::VariantKind VK = getVariantKind(Str);
- Res = MCSymbolRefExpr::Create(Symbol,VK,getContext());
- return false;
- }
- return true;
+ Res = evaluateRelocExpr(IdVal, Str);
+ return false;
}
bool MipsAsmParser::ParseRegister(unsigned &RegNo, SMLoc &StartLoc,
SMLoc &EndLoc) {
-
StartLoc = Parser.getTok().getLoc();
- RegNo = tryParseRegister("");
+ RegNo = tryParseRegister(isMips64());
EndLoc = Parser.getTok().getLoc();
return (RegNo == (unsigned)-1);
}
-bool MipsAsmParser::parseMemOffset(const MCExpr *&Res) {
-
+bool MipsAsmParser::parseMemOffset(const MCExpr *&Res, bool isParenExpr) {
SMLoc S;
+ bool Result = true;
+
+ while (getLexer().getKind() == AsmToken::LParen)
+ Parser.Lex();
- switch(getLexer().getKind()) {
+ switch (getLexer().getKind()) {
default:
return true;
+ case AsmToken::Identifier:
+ case AsmToken::LParen:
case AsmToken::Integer:
case AsmToken::Minus:
case AsmToken::Plus:
- return (getParser().ParseExpression(Res));
+ if (isParenExpr)
+ Result = getParser().parseParenExpression(Res, S);
+ else
+ Result = (getParser().parseExpression(Res));
+ while (getLexer().getKind() == AsmToken::RParen)
+ Parser.Lex();
+ break;
case AsmToken::Percent:
- return parseRelocOperand(Res);
- case AsmToken::LParen:
- return false; // it's probably assuming 0
+ Result = parseRelocOperand(Res);
}
- return true;
+ return Result;
}
MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand(
- SmallVectorImpl<MCParsedAsmOperand*>&Operands) {
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
const MCExpr *IdVal = 0;
SMLoc S;
- // first operand is the offset
+ bool isParenExpr = false;
+ MipsAsmParser::OperandMatchResultTy Res = MatchOperand_NoMatch;
+ // First operand is the offset.
S = Parser.getTok().getLoc();
- if (parseMemOffset(IdVal))
- return MatchOperand_ParseFail;
-
- const AsmToken &Tok = Parser.getTok(); // get next token
- if (Tok.isNot(AsmToken::LParen)) {
- Error(Parser.getTok().getLoc(), "'(' expected");
- return MatchOperand_ParseFail;
+ if (getLexer().getKind() == AsmToken::LParen) {
+ Parser.Lex();
+ isParenExpr = true;
}
- Parser.Lex(); // Eat '(' token.
+ if (getLexer().getKind() != AsmToken::Dollar) {
+ if (parseMemOffset(IdVal, isParenExpr))
+ return MatchOperand_ParseFail;
- const AsmToken &Tok1 = Parser.getTok(); //get next token
- if (Tok1.is(AsmToken::Dollar)) {
- Parser.Lex(); // Eat '$' token.
- if (tryParseRegisterOperand(Operands,"")) {
- Error(Parser.getTok().getLoc(), "unexpected token in operand");
+ const AsmToken &Tok = Parser.getTok(); // Get the next token.
+ if (Tok.isNot(AsmToken::LParen)) {
+ MipsOperand *Mnemonic = static_cast<MipsOperand *>(Operands[0]);
+ if (Mnemonic->getToken() == "la") {
+ SMLoc E =
+ SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
+ Operands.push_back(MipsOperand::CreateImm(IdVal, S, E));
+ return MatchOperand_Success;
+ }
+ if (Tok.is(AsmToken::EndOfStatement)) {
+ SMLoc E =
+ SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
+
+ // Zero register assumed, add a memory operand with ZERO as its base.
+ Operands.push_back(MipsOperand::CreateMem(
+ isMips64() ? Mips::ZERO_64 : Mips::ZERO, IdVal, S, E));
+ return MatchOperand_Success;
+ }
+ Error(Parser.getTok().getLoc(), "'(' expected");
return MatchOperand_ParseFail;
}
- } else {
- Error(Parser.getTok().getLoc(), "unexpected token in operand");
- return MatchOperand_ParseFail;
+ Parser.Lex(); // Eat the '(' token.
}
- const AsmToken &Tok2 = Parser.getTok(); // get next token
- if (Tok2.isNot(AsmToken::RParen)) {
+ Res = parseRegs(Operands, isMips64() ? (int)MipsOperand::Kind_GPR64
+ : (int)MipsOperand::Kind_GPR32);
+ if (Res != MatchOperand_Success)
+ return Res;
+
+ if (Parser.getTok().isNot(AsmToken::RParen)) {
Error(Parser.getTok().getLoc(), "')' expected");
return MatchOperand_ParseFail;
}
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
- Parser.Lex(); // Eat ')' token.
+ Parser.Lex(); // Eat the ')' token.
if (IdVal == 0)
IdVal = MCConstantExpr::Create(0, getContext());
- // now replace register operand with the mem operand
- MipsOperand* op = static_cast<MipsOperand*>(Operands.back());
+ // Replace the register operand with the memory operand.
+ MipsOperand *op = static_cast<MipsOperand *>(Operands.back());
int RegNo = op->getReg();
- // remove register from operands
+ // Remove the register from the operands.
Operands.pop_back();
- // and add memory operand
+ // Add the memory operand.
+ if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(IdVal)) {
+ int64_t Imm;
+ if (IdVal->EvaluateAsAbsolute(Imm))
+ IdVal = MCConstantExpr::Create(Imm, getContext());
+ else if (BE->getLHS()->getKind() != MCExpr::SymbolRef)
+ IdVal = MCBinaryExpr::Create(BE->getOpcode(), BE->getRHS(), BE->getLHS(),
+ getContext());
+ }
+
Operands.push_back(MipsOperand::CreateMem(RegNo, IdVal, S, E));
delete op;
return MatchOperand_Success;
}
-MCSymbolRefExpr::VariantKind MipsAsmParser::getVariantKind(StringRef Symbol) {
+bool MipsAsmParser::parsePtrReg(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind) {
+ // If the first token is not '$' we have an error.
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return false;
- MCSymbolRefExpr::VariantKind VK
- = StringSwitch<MCSymbolRefExpr::VariantKind>(Symbol)
- .Case("hi", MCSymbolRefExpr::VK_Mips_ABS_HI)
- .Case("lo", MCSymbolRefExpr::VK_Mips_ABS_LO)
- .Case("gp_rel", MCSymbolRefExpr::VK_Mips_GPREL)
- .Case("call16", MCSymbolRefExpr::VK_Mips_GOT_CALL)
- .Case("got", MCSymbolRefExpr::VK_Mips_GOT)
- .Case("tlsgd", MCSymbolRefExpr::VK_Mips_TLSGD)
- .Case("tlsldm", MCSymbolRefExpr::VK_Mips_TLSLDM)
- .Case("dtprel_hi", MCSymbolRefExpr::VK_Mips_DTPREL_HI)
- .Case("dtprel_lo", MCSymbolRefExpr::VK_Mips_DTPREL_LO)
- .Case("gottprel", MCSymbolRefExpr::VK_Mips_GOTTPREL)
- .Case("tprel_hi", MCSymbolRefExpr::VK_Mips_TPREL_HI)
- .Case("tprel_lo", MCSymbolRefExpr::VK_Mips_TPREL_LO)
- .Case("got_disp", MCSymbolRefExpr::VK_Mips_GOT_DISP)
- .Case("got_page", MCSymbolRefExpr::VK_Mips_GOT_PAGE)
- .Case("got_ofst", MCSymbolRefExpr::VK_Mips_GOT_OFST)
- .Case("hi(%neg(%gp_rel", MCSymbolRefExpr::VK_Mips_GPOFF_HI)
- .Case("lo(%neg(%gp_rel", MCSymbolRefExpr::VK_Mips_GPOFF_LO)
- .Default(MCSymbolRefExpr::VK_None);
+ SMLoc S = Parser.getTok().getLoc();
+ Parser.Lex();
+ AsmToken::TokenKind TkKind = getLexer().getKind();
+ int Reg;
- return VK;
+ if (TkKind == AsmToken::Integer) {
+ Reg = matchRegisterByNumber(Parser.getTok().getIntVal(),
+ regKindToRegClass(RegKind));
+ if (Reg == -1)
+ return false;
+ } else if (TkKind == AsmToken::Identifier) {
+ if ((Reg = matchCPURegisterName(Parser.getTok().getString().lower())) == -1)
+ return false;
+ Reg = getReg(regKindToRegClass(RegKind), Reg);
+ } else {
+ return false;
+ }
+
+ MipsOperand *Op = MipsOperand::CreatePtrReg(Reg, S, Parser.getTok().getLoc());
+ Op->setRegKind((MipsOperand::RegisterKind)RegKind);
+ Operands.push_back(Op);
+ Parser.Lex();
+ return true;
}
-static int ConvertCcString(StringRef CondString) {
- int CC = StringSwitch<unsigned>(CondString)
- .Case(".f", 0)
- .Case(".un", 1)
- .Case(".eq", 2)
- .Case(".ueq", 3)
- .Case(".olt", 4)
- .Case(".ult", 5)
- .Case(".ole", 6)
- .Case(".ule", 7)
- .Case(".sf", 8)
- .Case(".ngle", 9)
- .Case(".seq", 10)
- .Case(".ngl", 11)
- .Case(".lt", 12)
- .Case(".nge", 13)
- .Case(".le", 14)
- .Case(".ngt", 15)
- .Default(-1);
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parsePtrReg(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ MipsOperand::RegisterKind RegKind =
+ isN64() ? MipsOperand::Kind_GPR64 : MipsOperand::Kind_GPR32;
- return CC;
-}
+ // Parse index register.
+ if (!parsePtrReg(Operands, RegKind))
+ return MatchOperand_NoMatch;
-bool MipsAsmParser::
-parseMathOperation(StringRef Name, SMLoc NameLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
- // split the format
- size_t Start = Name.find('.'), Next = Name.rfind('.');
- StringRef Format1 = Name.slice(Start, Next);
- // and add the first format to the operands
- Operands.push_back(MipsOperand::CreateToken(Format1, NameLoc));
- // now for the second format
- StringRef Format2 = Name.slice(Next, StringRef::npos);
- Operands.push_back(MipsOperand::CreateToken(Format2, NameLoc));
+ // Parse '('.
+ if (Parser.getTok().isNot(AsmToken::LParen))
+ return MatchOperand_NoMatch;
- // set the format for the first register
- setFpFormat(Format1);
+ Operands.push_back(MipsOperand::CreateToken("(", getLexer().getLoc()));
+ Parser.Lex();
- // Read the remaining operands.
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- // Read the first operand.
- if (ParseOperand(Operands, Name)) {
- SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
- return Error(Loc, "unexpected token in argument list");
- }
+ // Parse base register.
+ if (!parsePtrReg(Operands, RegKind))
+ return MatchOperand_NoMatch;
- if (getLexer().isNot(AsmToken::Comma)) {
- SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
- return Error(Loc, "unexpected token in argument list");
+ // Parse ')'.
+ if (Parser.getTok().isNot(AsmToken::RParen))
+ return MatchOperand_NoMatch;
- }
- Parser.Lex(); // Eat the comma.
+ Operands.push_back(MipsOperand::CreateToken(")", getLexer().getLoc()));
+ Parser.Lex();
- //set the format for the first register
- setFpFormat(Format2);
+ return MatchOperand_Success;
+}
- // Parse and remember the operand.
- if (ParseOperand(Operands, Name)) {
- SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
- return Error(Loc, "unexpected token in argument list");
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind) {
+ MipsOperand::RegisterKind Kind = (MipsOperand::RegisterKind)RegKind;
+ if (getLexer().getKind() == AsmToken::Identifier && !hasConsumedDollar) {
+ if (searchSymbolAlias(Operands, Kind))
+ return MatchOperand_Success;
+ return MatchOperand_NoMatch;
+ }
+ SMLoc S = Parser.getTok().getLoc();
+ // If the first token is not '$', we have an error.
+ if (Parser.getTok().isNot(AsmToken::Dollar) && !hasConsumedDollar)
+ return MatchOperand_NoMatch;
+ if (!hasConsumedDollar) {
+ Parser.Lex(); // Eat the '$'
+ hasConsumedDollar = true;
+ }
+ if (getLexer().getKind() == AsmToken::Identifier) {
+ int RegNum = -1;
+ std::string RegName = Parser.getTok().getString().lower();
+ // Match register by name
+ switch (RegKind) {
+ case MipsOperand::Kind_GPR32:
+ case MipsOperand::Kind_GPR64:
+ RegNum = matchCPURegisterName(RegName);
+ break;
+ case MipsOperand::Kind_AFGR64Regs:
+ case MipsOperand::Kind_FGR64Regs:
+ case MipsOperand::Kind_FGR32Regs:
+ case MipsOperand::Kind_FGRH32Regs:
+ RegNum = matchFPURegisterName(RegName);
+ if (RegKind == MipsOperand::Kind_AFGR64Regs)
+ RegNum /= 2;
+ else if (RegKind == MipsOperand::Kind_FGRH32Regs && !isFP64())
+ if (RegNum != -1 && RegNum % 2 != 0)
+ Warning(S, "Float register should be even.");
+ break;
+ case MipsOperand::Kind_FCCRegs:
+ RegNum = matchFCCRegisterName(RegName);
+ break;
+ case MipsOperand::Kind_ACC64DSP:
+ RegNum = matchACRegisterName(RegName);
+ break;
+ default:
+ break; // No match, value is set to -1.
+ }
+ // No match found, return _NoMatch to give a chance to other round.
+ if (RegNum < 0)
+ return MatchOperand_NoMatch;
+
+ int RegVal = getReg(regKindToRegClass(Kind), RegNum);
+ if (RegVal == -1)
+ return MatchOperand_NoMatch;
+
+ MipsOperand *Op =
+ MipsOperand::CreateReg(RegVal, S, Parser.getTok().getLoc());
+ Op->setRegKind(Kind);
+ Operands.push_back(Op);
+ hasConsumedDollar = false;
+ Parser.Lex(); // Eat the register name.
+ return MatchOperand_Success;
+ } else if (getLexer().getKind() == AsmToken::Integer) {
+ unsigned RegNum = Parser.getTok().getIntVal();
+ if (Kind == MipsOperand::Kind_HWRegs) {
+ if (RegNum != 29)
+ return MatchOperand_NoMatch;
+ // Only hwreg 29 is supported, found at index 0.
+ RegNum = 0;
+ }
+ int Reg = matchRegisterByNumber(RegNum, regKindToRegClass(Kind));
+ if (Reg == -1)
+ return MatchOperand_NoMatch;
+ MipsOperand *Op = MipsOperand::CreateReg(Reg, S, Parser.getTok().getLoc());
+ Op->setRegKind(Kind);
+ Operands.push_back(Op);
+ hasConsumedDollar = false;
+ Parser.Lex(); // Eat the register number.
+ if ((RegKind == MipsOperand::Kind_GPR32) &&
+ (getLexer().is(AsmToken::LParen))) {
+ // Check if it is indexed addressing operand.
+ Operands.push_back(MipsOperand::CreateToken("(", getLexer().getLoc()));
+ Parser.Lex(); // Eat the parenthesis.
+ if (parseRegs(Operands, RegKind) != MatchOperand_Success)
+ return MatchOperand_NoMatch;
+ if (getLexer().isNot(AsmToken::RParen))
+ return MatchOperand_NoMatch;
+ Operands.push_back(MipsOperand::CreateToken(")", getLexer().getLoc()));
+ Parser.Lex();
}
+ return MatchOperand_Success;
}
+ return MatchOperand_NoMatch;
+}
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
- return Error(Loc, "unexpected token in argument list");
- }
+bool MipsAsmParser::validateMSAIndex(int Val, int RegKind) {
+ MipsOperand::RegisterKind Kind = (MipsOperand::RegisterKind)RegKind;
- Parser.Lex(); // Consume the EndOfStatement
- return false;
+ if (Val < 0)
+ return false;
+
+ switch (Kind) {
+ default:
+ return false;
+ case MipsOperand::Kind_MSA128BRegs:
+ return Val < 16;
+ case MipsOperand::Kind_MSA128HRegs:
+ return Val < 8;
+ case MipsOperand::Kind_MSA128WRegs:
+ return Val < 4;
+ case MipsOperand::Kind_MSA128DRegs:
+ return Val < 2;
+ }
}
-bool MipsAsmParser::
-ParseInstruction(StringRef Name, SMLoc NameLoc,
- SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
- // floating point instructions: should register be treated as double?
- if (requestsDoubleOperand(Name)) {
- setFpFormat(FP_FORMAT_D);
- Operands.push_back(MipsOperand::CreateToken(Name, NameLoc));
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseMSARegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind) {
+ MipsOperand::RegisterKind Kind = (MipsOperand::RegisterKind)RegKind;
+ SMLoc S = Parser.getTok().getLoc();
+ std::string RegName;
+
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_NoMatch;
+
+ switch (RegKind) {
+ default:
+ return MatchOperand_ParseFail;
+ case MipsOperand::Kind_MSA128BRegs:
+ case MipsOperand::Kind_MSA128HRegs:
+ case MipsOperand::Kind_MSA128WRegs:
+ case MipsOperand::Kind_MSA128DRegs:
+ break;
}
- else {
- setDefaultFpFormat();
- // Create the leading tokens for the mnemonic, split by '.' characters.
- size_t Start = 0, Next = Name.find('.');
- StringRef Mnemonic = Name.slice(Start, Next);
-
- Operands.push_back(MipsOperand::CreateToken(Mnemonic, NameLoc));
-
- if (Next != StringRef::npos) {
- // there is a format token in mnemonic
- // StringRef Rest = Name.slice(Next, StringRef::npos);
- size_t Dot = Name.find('.', Next+1);
- StringRef Format = Name.slice(Next, Dot);
- if (Dot == StringRef::npos) //only one '.' in a string, it's a format
- Operands.push_back(MipsOperand::CreateToken(Format, NameLoc));
- else {
- if (Name.startswith("c.")){
- // floating point compare, add '.' and immediate represent for cc
- Operands.push_back(MipsOperand::CreateToken(".", NameLoc));
- int Cc = ConvertCcString(Format);
- if (Cc == -1) {
- return Error(NameLoc, "Invalid conditional code");
- }
- SMLoc E = SMLoc::getFromPointer(
- Parser.getTok().getLoc().getPointer() -1 );
- Operands.push_back(MipsOperand::CreateImm(
- MCConstantExpr::Create(Cc, getContext()), NameLoc, E));
- } else {
- // trunc, ceil, floor ...
- return parseMathOperation(Name, NameLoc, Operands);
- }
- // the rest is a format
- Format = Name.slice(Dot, StringRef::npos);
- Operands.push_back(MipsOperand::CreateToken(Format, NameLoc));
+ Parser.Lex(); // Eat the '$'.
+ if (getLexer().getKind() == AsmToken::Identifier)
+ RegName = Parser.getTok().getString().lower();
+ else
+ return MatchOperand_ParseFail;
+
+ int RegNum = matchMSA128RegisterName(RegName);
+
+ if (RegNum < 0 || RegNum > 31)
+ return MatchOperand_ParseFail;
+
+ int RegVal = getReg(regKindToRegClass(Kind), RegNum);
+ if (RegVal == -1)
+ return MatchOperand_ParseFail;
+
+ MipsOperand *Op = MipsOperand::CreateReg(RegVal, S, Parser.getTok().getLoc());
+ Op->setRegKind(Kind);
+ Operands.push_back(Op);
+
+ Parser.Lex(); // Eat the register identifier.
+
+ // MSA registers may be suffixed with an index in the form of:
+ // 1) Immediate expression.
+ // 2) General Purpose Register.
+ // Examples:
+ // 1) copy_s.b $29,$w0[0]
+ // 2) sld.b $w0,$w1[$1]
+
+ if (Parser.getTok().isNot(AsmToken::LBrac))
+ return MatchOperand_Success;
+
+ MipsOperand *Mnemonic = static_cast<MipsOperand *>(Operands[0]);
+
+ Operands.push_back(MipsOperand::CreateToken("[", Parser.getTok().getLoc()));
+ Parser.Lex(); // Parse the '[' token.
+
+ if (Parser.getTok().is(AsmToken::Dollar)) {
+ // This must be a GPR.
+ MipsOperand *RegOp;
+ SMLoc VIdx = Parser.getTok().getLoc();
+ Parser.Lex(); // Parse the '$' token.
+
+ // GPR have aliases and we must account for that. Example: $30 == $fp
+ if (getLexer().getKind() == AsmToken::Integer) {
+ unsigned RegNum = Parser.getTok().getIntVal();
+ int Reg = matchRegisterByNumber(
+ RegNum, regKindToRegClass(MipsOperand::Kind_GPR32));
+ if (Reg == -1) {
+ Error(VIdx, "invalid general purpose register");
+ return MatchOperand_ParseFail;
}
- setFpFormat(Format);
+ RegOp = MipsOperand::CreateReg(Reg, VIdx, Parser.getTok().getLoc());
+ } else if (getLexer().getKind() == AsmToken::Identifier) {
+ int RegNum = -1;
+ std::string RegName = Parser.getTok().getString().lower();
+
+ RegNum = matchCPURegisterName(RegName);
+ if (RegNum == -1) {
+ Error(VIdx, "general purpose register expected");
+ return MatchOperand_ParseFail;
+ }
+ RegNum = getReg(regKindToRegClass(MipsOperand::Kind_GPR32), RegNum);
+ RegOp = MipsOperand::CreateReg(RegNum, VIdx, Parser.getTok().getLoc());
+ } else
+ return MatchOperand_ParseFail;
+
+ RegOp->setRegKind(MipsOperand::Kind_GPR32);
+ Operands.push_back(RegOp);
+ Parser.Lex(); // Eat the register identifier.
+
+ if (Parser.getTok().isNot(AsmToken::RBrac))
+ return MatchOperand_ParseFail;
+
+ Operands.push_back(MipsOperand::CreateToken("]", Parser.getTok().getLoc()));
+ Parser.Lex(); // Parse the ']' token.
+
+ return MatchOperand_Success;
+ }
+
+ // The index must be a constant expression then.
+ SMLoc VIdx = Parser.getTok().getLoc();
+ const MCExpr *ImmVal;
+
+ if (getParser().parseExpression(ImmVal))
+ return MatchOperand_ParseFail;
+
+ const MCConstantExpr *expr = dyn_cast<MCConstantExpr>(ImmVal);
+ if (!expr || !validateMSAIndex((int)expr->getValue(), Kind)) {
+ Error(VIdx, "invalid immediate value");
+ return MatchOperand_ParseFail;
+ }
+
+ SMLoc E = Parser.getTok().getEndLoc();
+
+ if (Parser.getTok().isNot(AsmToken::RBrac))
+ return MatchOperand_ParseFail;
+
+ bool insve =
+ Mnemonic->getToken() == "insve.b" || Mnemonic->getToken() == "insve.h" ||
+ Mnemonic->getToken() == "insve.w" || Mnemonic->getToken() == "insve.d";
+
+ // The second vector index of insve instructions is always 0.
+ if (insve && Operands.size() > 6) {
+ if (expr->getValue() != 0) {
+ Error(VIdx, "immediate value must be 0");
+ return MatchOperand_ParseFail;
+ }
+ Operands.push_back(MipsOperand::CreateToken("0", VIdx));
+ } else
+ Operands.push_back(MipsOperand::CreateImm(expr, VIdx, E));
+
+ Operands.push_back(MipsOperand::CreateToken("]", Parser.getTok().getLoc()));
+
+ Parser.Lex(); // Parse the ']' token.
+
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseMSACtrlRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands,
+ int RegKind) {
+ MipsOperand::RegisterKind Kind = (MipsOperand::RegisterKind)RegKind;
+
+ if (Kind != MipsOperand::Kind_MSA128CtrlRegs)
+ return MatchOperand_NoMatch;
+
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_ParseFail;
+
+ SMLoc S = Parser.getTok().getLoc();
+
+ Parser.Lex(); // Eat the '$' symbol.
+
+ int RegNum = -1;
+ if (getLexer().getKind() == AsmToken::Identifier)
+ RegNum = matchMSA128CtrlRegisterName(Parser.getTok().getString().lower());
+ else if (getLexer().getKind() == AsmToken::Integer)
+ RegNum = Parser.getTok().getIntVal();
+ else
+ return MatchOperand_ParseFail;
+
+ if (RegNum < 0 || RegNum > 7)
+ return MatchOperand_ParseFail;
+
+ int RegVal = getReg(regKindToRegClass(Kind), RegNum);
+ if (RegVal == -1)
+ return MatchOperand_ParseFail;
+
+ MipsOperand *RegOp =
+ MipsOperand::CreateReg(RegVal, S, Parser.getTok().getLoc());
+ RegOp->setRegKind(MipsOperand::Kind_MSA128CtrlRegs);
+ Operands.push_back(RegOp);
+ Parser.Lex(); // Eat the register identifier.
+
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseGPR64(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+
+ if (!isMips64())
+ return MatchOperand_NoMatch;
+ return parseRegs(Operands, (int)MipsOperand::Kind_GPR64);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseGPR32(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_GPR32);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseAFGR64Regs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+
+ if (isFP64())
+ return MatchOperand_NoMatch;
+ return parseRegs(Operands, (int)MipsOperand::Kind_AFGR64Regs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseFGR64Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ if (!isFP64())
+ return MatchOperand_NoMatch;
+ return parseRegs(Operands, (int)MipsOperand::Kind_FGR64Regs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseFGR32Regs(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_FGR32Regs);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseFGRH32Regs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_FGRH32Regs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseFCCRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_FCCRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseACC64DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_ACC64DSP);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseLO32DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ // If the first token is not '$' we have an error.
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_NoMatch;
+
+ SMLoc S = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat the '$'
+
+ const AsmToken &Tok = Parser.getTok(); // Get next token.
+
+ if (Tok.isNot(AsmToken::Identifier))
+ return MatchOperand_NoMatch;
+
+ if (!Tok.getIdentifier().startswith("ac"))
+ return MatchOperand_NoMatch;
+
+ StringRef NumString = Tok.getIdentifier().substr(2);
+
+ unsigned IntVal;
+ if (NumString.getAsInteger(10, IntVal))
+ return MatchOperand_NoMatch;
+
+ unsigned Reg = matchRegisterByNumber(IntVal, Mips::LO32DSPRegClassID);
+
+ MipsOperand *Op = MipsOperand::CreateReg(Reg, S, Parser.getTok().getLoc());
+ Op->setRegKind(MipsOperand::Kind_LO32DSP);
+ Operands.push_back(Op);
+
+ Parser.Lex(); // Eat the register number.
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseHI32DSP(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ // If the first token is not '$' we have an error.
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_NoMatch;
+
+ SMLoc S = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat the '$'
+
+ const AsmToken &Tok = Parser.getTok(); // Get next token.
+
+ if (Tok.isNot(AsmToken::Identifier))
+ return MatchOperand_NoMatch;
+
+ if (!Tok.getIdentifier().startswith("ac"))
+ return MatchOperand_NoMatch;
+
+ StringRef NumString = Tok.getIdentifier().substr(2);
+
+ unsigned IntVal;
+ if (NumString.getAsInteger(10, IntVal))
+ return MatchOperand_NoMatch;
+
+ unsigned Reg = matchRegisterByNumber(IntVal, Mips::HI32DSPRegClassID);
+
+ MipsOperand *Op = MipsOperand::CreateReg(Reg, S, Parser.getTok().getLoc());
+ Op->setRegKind(MipsOperand::Kind_HI32DSP);
+ Operands.push_back(Op);
+
+ Parser.Lex(); // Eat the register number.
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseCOP2(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ // If the first token is not '$' we have an error.
+ if (Parser.getTok().isNot(AsmToken::Dollar))
+ return MatchOperand_NoMatch;
+
+ SMLoc S = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat the '$'
+
+ const AsmToken &Tok = Parser.getTok(); // Get next token.
+
+ if (Tok.isNot(AsmToken::Integer))
+ return MatchOperand_NoMatch;
+
+ unsigned IntVal = Tok.getIntVal();
+
+ unsigned Reg = matchRegisterByNumber(IntVal, Mips::COP2RegClassID);
+
+ MipsOperand *Op = MipsOperand::CreateReg(Reg, S, Parser.getTok().getLoc());
+ Op->setRegKind(MipsOperand::Kind_COP2);
+ Operands.push_back(Op);
+
+ Parser.Lex(); // Eat the register number.
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMSA128BRegs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseMSARegs(Operands, (int)MipsOperand::Kind_MSA128BRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMSA128HRegs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseMSARegs(Operands, (int)MipsOperand::Kind_MSA128HRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMSA128WRegs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseMSARegs(Operands, (int)MipsOperand::Kind_MSA128WRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMSA128DRegs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseMSARegs(Operands, (int)MipsOperand::Kind_MSA128DRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMSA128CtrlRegs(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseMSACtrlRegs(Operands, (int)MipsOperand::Kind_MSA128CtrlRegs);
+}
+
+bool MipsAsmParser::searchSymbolAlias(
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands, unsigned RegKind) {
+
+ MCSymbol *Sym = getContext().LookupSymbol(Parser.getTok().getIdentifier());
+ if (Sym) {
+ SMLoc S = Parser.getTok().getLoc();
+ const MCExpr *Expr;
+ if (Sym->isVariable())
+ Expr = Sym->getVariableValue();
+ else
+ return false;
+ if (Expr->getKind() == MCExpr::SymbolRef) {
+ MipsOperand::RegisterKind Kind = (MipsOperand::RegisterKind)RegKind;
+ const MCSymbolRefExpr *Ref = static_cast<const MCSymbolRefExpr *>(Expr);
+ const StringRef DefSymbol = Ref->getSymbol().getName();
+ if (DefSymbol.startswith("$")) {
+ int RegNum = -1;
+ APInt IntVal(32, -1);
+ if (!DefSymbol.substr(1).getAsInteger(10, IntVal))
+ RegNum = matchRegisterByNumber(IntVal.getZExtValue(),
+ isMips64() ? Mips::GPR64RegClassID
+ : Mips::GPR32RegClassID);
+ else {
+ // Lookup for the register with the corresponding name.
+ switch (Kind) {
+ case MipsOperand::Kind_AFGR64Regs:
+ case MipsOperand::Kind_FGR64Regs:
+ RegNum = matchFPURegisterName(DefSymbol.substr(1));
+ break;
+ case MipsOperand::Kind_FGR32Regs:
+ RegNum = matchFPURegisterName(DefSymbol.substr(1));
+ break;
+ case MipsOperand::Kind_GPR64:
+ case MipsOperand::Kind_GPR32:
+ default:
+ RegNum = matchCPURegisterName(DefSymbol.substr(1));
+ break;
+ }
+ if (RegNum > -1)
+ RegNum = getReg(regKindToRegClass(Kind), RegNum);
+ }
+ if (RegNum > -1) {
+ Parser.Lex();
+ MipsOperand *op =
+ MipsOperand::CreateReg(RegNum, S, Parser.getTok().getLoc());
+ op->setRegKind(Kind);
+ Operands.push_back(op);
+ return true;
+ }
+ }
+ } else if (Expr->getKind() == MCExpr::Constant) {
+ Parser.Lex();
+ const MCConstantExpr *Const = static_cast<const MCConstantExpr *>(Expr);
+ MipsOperand *op =
+ MipsOperand::CreateImm(Const, S, Parser.getTok().getLoc());
+ Operands.push_back(op);
+ return true;
}
}
+ return false;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseHWRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_HWRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseCCRRegs(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ return parseRegs(Operands, (int)MipsOperand::Kind_CCRRegs);
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseInvNum(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ const MCExpr *IdVal;
+ // If the first token is '$' we may have register operand.
+ if (Parser.getTok().is(AsmToken::Dollar))
+ return MatchOperand_NoMatch;
+ SMLoc S = Parser.getTok().getLoc();
+ if (getParser().parseExpression(IdVal))
+ return MatchOperand_ParseFail;
+ const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(IdVal);
+ assert(MCE && "Unexpected MCExpr type.");
+ int64_t Val = MCE->getValue();
+ SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
+ Operands.push_back(MipsOperand::CreateImm(
+ MCConstantExpr::Create(0 - Val, getContext()), S, E));
+ return MatchOperand_Success;
+}
+
+MipsAsmParser::OperandMatchResultTy
+MipsAsmParser::parseLSAImm(SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ switch (getLexer().getKind()) {
+ default:
+ return MatchOperand_NoMatch;
+ case AsmToken::LParen:
+ case AsmToken::Plus:
+ case AsmToken::Minus:
+ case AsmToken::Integer:
+ break;
+ }
+
+ const MCExpr *Expr;
+ SMLoc S = Parser.getTok().getLoc();
+
+ if (getParser().parseExpression(Expr))
+ return MatchOperand_ParseFail;
+
+ int64_t Val;
+ if (!Expr->EvaluateAsAbsolute(Val)) {
+ Error(S, "expected immediate value");
+ return MatchOperand_ParseFail;
+ }
+
+ // The LSA instruction allows a 2-bit unsigned immediate. For this reason
+ // and because the CPU always adds one to the immediate field, the allowed
+ // range becomes 1..4. We'll only check the range here and will deal
+ // with the addition/subtraction when actually decoding/encoding
+ // the instruction.
+ if (Val < 1 || Val > 4) {
+ Error(S, "immediate not in range (1..4)");
+ return MatchOperand_ParseFail;
+ }
+
+ Operands.push_back(MipsOperand::CreateLSAImm(Expr, S,
+ Parser.getTok().getLoc()));
+ return MatchOperand_Success;
+}
+
+MCSymbolRefExpr::VariantKind MipsAsmParser::getVariantKind(StringRef Symbol) {
+
+ MCSymbolRefExpr::VariantKind VK =
+ StringSwitch<MCSymbolRefExpr::VariantKind>(Symbol)
+ .Case("hi", MCSymbolRefExpr::VK_Mips_ABS_HI)
+ .Case("lo", MCSymbolRefExpr::VK_Mips_ABS_LO)
+ .Case("gp_rel", MCSymbolRefExpr::VK_Mips_GPREL)
+ .Case("call16", MCSymbolRefExpr::VK_Mips_GOT_CALL)
+ .Case("got", MCSymbolRefExpr::VK_Mips_GOT)
+ .Case("tlsgd", MCSymbolRefExpr::VK_Mips_TLSGD)
+ .Case("tlsldm", MCSymbolRefExpr::VK_Mips_TLSLDM)
+ .Case("dtprel_hi", MCSymbolRefExpr::VK_Mips_DTPREL_HI)
+ .Case("dtprel_lo", MCSymbolRefExpr::VK_Mips_DTPREL_LO)
+ .Case("gottprel", MCSymbolRefExpr::VK_Mips_GOTTPREL)
+ .Case("tprel_hi", MCSymbolRefExpr::VK_Mips_TPREL_HI)
+ .Case("tprel_lo", MCSymbolRefExpr::VK_Mips_TPREL_LO)
+ .Case("got_disp", MCSymbolRefExpr::VK_Mips_GOT_DISP)
+ .Case("got_page", MCSymbolRefExpr::VK_Mips_GOT_PAGE)
+ .Case("got_ofst", MCSymbolRefExpr::VK_Mips_GOT_OFST)
+ .Case("hi(%neg(%gp_rel", MCSymbolRefExpr::VK_Mips_GPOFF_HI)
+ .Case("lo(%neg(%gp_rel", MCSymbolRefExpr::VK_Mips_GPOFF_LO)
+ .Default(MCSymbolRefExpr::VK_None);
+
+ return VK;
+}
+
+bool MipsAsmParser::ParseInstruction(
+ ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc,
+ SmallVectorImpl<MCParsedAsmOperand *> &Operands) {
+ // Check if we have valid mnemonic
+ if (!mnemonicIsValid(Name, 0)) {
+ Parser.eatToEndOfStatement();
+ return Error(NameLoc, "Unknown instruction");
+ }
+ // First operand in MCInst is instruction mnemonic.
+ Operands.push_back(MipsOperand::CreateToken(Name, NameLoc));
// Read the remaining operands.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
// Read the first operand.
if (ParseOperand(Operands, Name)) {
SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
+ Parser.eatToEndOfStatement();
return Error(Loc, "unexpected token in argument list");
}
- while (getLexer().is(AsmToken::Comma) ) {
- Parser.Lex(); // Eat the comma.
-
+ while (getLexer().is(AsmToken::Comma)) {
+ Parser.Lex(); // Eat the comma.
// Parse and remember the operand.
if (ParseOperand(Operands, Name)) {
SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
+ Parser.eatToEndOfStatement();
return Error(Loc, "unexpected token in argument list");
}
}
}
-
if (getLexer().isNot(AsmToken::EndOfStatement)) {
SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
+ Parser.eatToEndOfStatement();
return Error(Loc, "unexpected token in argument list");
}
-
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
}
bool MipsAsmParser::reportParseError(StringRef ErrorMsg) {
- SMLoc Loc = getLexer().getLoc();
- Parser.EatToEndOfStatement();
- return Error(Loc, ErrorMsg);
+ SMLoc Loc = getLexer().getLoc();
+ Parser.eatToEndOfStatement();
+ return Error(Loc, ErrorMsg);
}
bool MipsAsmParser::parseSetNoAtDirective() {
- // line should look like:
- // .set noat
- // set at reg to 0
+ // Line should look like: ".set noat".
+ // set at reg to 0.
Options.setATReg(0);
// eat noat
Parser.Lex();
- // if this is not the end of the statement, report error
+ // If this is not the end of the statement, report an error.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
reportParseError("unexpected token in statement");
return false;
}
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
}
+
bool MipsAsmParser::parseSetAtDirective() {
- // line can be
- // .set at - defaults to $1
+ // Line can be .set at - defaults to $1
// or .set at=$reg
+ int AtRegNo;
getParser().Lex();
if (getLexer().is(AsmToken::EndOfStatement)) {
Options.setATReg(1);
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
} else if (getLexer().is(AsmToken::Equal)) {
- getParser().Lex(); //eat '='
+ getParser().Lex(); // Eat the '='.
if (getLexer().isNot(AsmToken::Dollar)) {
reportParseError("unexpected token in statement");
return false;
}
- Parser.Lex(); // eat '$'
- if (getLexer().isNot(AsmToken::Integer)) {
+ Parser.Lex(); // Eat the '$'.
+ const AsmToken &Reg = Parser.getTok();
+ if (Reg.is(AsmToken::Identifier)) {
+ AtRegNo = matchCPURegisterName(Reg.getIdentifier());
+ } else if (Reg.is(AsmToken::Integer)) {
+ AtRegNo = Reg.getIntVal();
+ } else {
+ reportParseError("unexpected token in statement");
+ return false;
+ }
+
+ if (AtRegNo < 1 || AtRegNo > 31) {
reportParseError("unexpected token in statement");
return false;
}
- const AsmToken &Reg = Parser.getTok();
- if (!Options.setATReg(Reg.getIntVal())) {
+
+ if (!Options.setATReg(AtRegNo)) {
reportParseError("unexpected token in statement");
return false;
}
- getParser().Lex(); //eat reg
+ getParser().Lex(); // Eat the register.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
reportParseError("unexpected token in statement");
return false;
- }
- Parser.Lex(); // Consume the EndOfStatement
+ }
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
} else {
reportParseError("unexpected token in statement");
bool MipsAsmParser::parseSetReorderDirective() {
Parser.Lex();
- // if this is not the end of the statement, report error
+ // If this is not the end of the statement, report an error.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
reportParseError("unexpected token in statement");
return false;
}
Options.setReorder();
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
}
bool MipsAsmParser::parseSetNoReorderDirective() {
- Parser.Lex();
- // if this is not the end of the statement, report error
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- reportParseError("unexpected token in statement");
- return false;
- }
- Options.setNoreorder();
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex();
+ // If this is not the end of the statement, report an error.
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ reportParseError("unexpected token in statement");
return false;
+ }
+ Options.setNoreorder();
+ Parser.Lex(); // Consume the EndOfStatement.
+ return false;
}
bool MipsAsmParser::parseSetMacroDirective() {
Parser.Lex();
- // if this is not the end of the statement, report error
+ // If this is not the end of the statement, report an error.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
reportParseError("unexpected token in statement");
return false;
}
Options.setMacro();
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
return false;
}
bool MipsAsmParser::parseSetNoMacroDirective() {
Parser.Lex();
- // if this is not the end of the statement, report error
+ // If this is not the end of the statement, report an error.
if (getLexer().isNot(AsmToken::EndOfStatement)) {
reportParseError("`noreorder' must be set before `nomacro'");
return false;
return false;
}
Options.setNomacro();
- Parser.Lex(); // Consume the EndOfStatement
+ Parser.Lex(); // Consume the EndOfStatement.
+ return false;
+}
+
+bool MipsAsmParser::parseSetAssignment() {
+ StringRef Name;
+ const MCExpr *Value;
+
+ if (Parser.parseIdentifier(Name))
+ reportParseError("expected identifier after .set");
+
+ if (getLexer().isNot(AsmToken::Comma))
+ return reportParseError("unexpected token in .set directive");
+ Lex(); // Eat comma
+
+ if (Parser.parseExpression(Value))
+ return reportParseError("expected valid expression after comma");
+
+ // Check if the Name already exists as a symbol.
+ MCSymbol *Sym = getContext().LookupSymbol(Name);
+ if (Sym)
+ return reportParseError("symbol already defined");
+ Sym = getContext().GetOrCreateSymbol(Name);
+ Sym->setVariableValue(Value);
+
return false;
}
+
bool MipsAsmParser::parseDirectiveSet() {
- // get next token
+ // Get the next token.
const AsmToken &Tok = Parser.getTok();
if (Tok.getString() == "noat") {
} else if (Tok.getString() == "nomacro") {
return parseSetNoMacroDirective();
} else if (Tok.getString() == "nomips16") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ // Ignore this directive for now.
+ Parser.eatToEndOfStatement();
return false;
} else if (Tok.getString() == "nomicromips") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ getTargetStreamer().emitDirectiveSetNoMicroMips();
+ Parser.eatToEndOfStatement();
+ return false;
+ } else if (Tok.getString() == "micromips") {
+ getTargetStreamer().emitDirectiveSetMicroMips();
+ Parser.eatToEndOfStatement();
+ return false;
+ } else {
+ // It is just an identifier, look for an assignment.
+ parseSetAssignment();
return false;
}
+
return true;
}
+bool MipsAsmParser::parseDirectiveMipsHackELFFlags() {
+ int64_t Flags = 0;
+ if (Parser.parseAbsoluteExpression(Flags)) {
+ TokError("unexpected token");
+ return false;
+ }
+
+ getTargetStreamer().emitMipsHackELFFlags(Flags);
+ return false;
+}
+
+/// parseDirectiveWord
+/// ::= .word [ expression (, expression)* ]
+bool MipsAsmParser::parseDirectiveWord(unsigned Size, SMLoc L) {
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ for (;;) {
+ const MCExpr *Value;
+ if (getParser().parseExpression(Value))
+ return true;
+
+ getParser().getStreamer().EmitValue(Value, Size);
+
+ if (getLexer().is(AsmToken::EndOfStatement))
+ break;
+
+ // FIXME: Improve diagnostic.
+ if (getLexer().isNot(AsmToken::Comma))
+ return Error(L, "unexpected token in directive");
+ Parser.Lex();
+ }
+ }
+
+ Parser.Lex();
+ return false;
+}
+
+/// parseDirectiveGpWord
+/// ::= .gpword local_sym
+bool MipsAsmParser::parseDirectiveGpWord() {
+ const MCExpr *Value;
+ // EmitGPRel32Value requires an expression, so we are using base class
+ // method to evaluate the expression.
+ if (getParser().parseExpression(Value))
+ return true;
+ getParser().getStreamer().EmitGPRel32Value(Value);
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return Error(getLexer().getLoc(), "unexpected token in directive");
+ Parser.Lex(); // Eat EndOfStatement token.
+ return false;
+}
+
+bool MipsAsmParser::parseDirectiveOption() {
+ // Get the option token.
+ AsmToken Tok = Parser.getTok();
+ // At the moment only identifiers are supported.
+ if (Tok.isNot(AsmToken::Identifier)) {
+ Error(Parser.getTok().getLoc(), "unexpected token in .option directive");
+ Parser.eatToEndOfStatement();
+ return false;
+ }
+
+ StringRef Option = Tok.getIdentifier();
+
+ if (Option == "pic0") {
+ getTargetStreamer().emitDirectiveOptionPic0();
+ Parser.Lex();
+ if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
+ Error(Parser.getTok().getLoc(),
+ "unexpected token in .option pic0 directive");
+ Parser.eatToEndOfStatement();
+ }
+ return false;
+ }
+
+ // Unknown option.
+ Warning(Parser.getTok().getLoc(), "unknown option in .option directive");
+ Parser.eatToEndOfStatement();
+ return false;
+}
+
bool MipsAsmParser::ParseDirective(AsmToken DirectiveID) {
+ StringRef IDVal = DirectiveID.getString();
- if (DirectiveID.getString() == ".ent") {
- // ignore this directive for now
+ if (IDVal == ".ent") {
+ // Ignore this directive for now.
Parser.Lex();
return false;
}
- if (DirectiveID.getString() == ".end") {
- // ignore this directive for now
+ if (IDVal == ".end") {
+ // Ignore this directive for now.
Parser.Lex();
return false;
}
- if (DirectiveID.getString() == ".frame") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ if (IDVal == ".frame") {
+ // Ignore this directive for now.
+ Parser.eatToEndOfStatement();
return false;
}
- if (DirectiveID.getString() == ".set") {
+ if (IDVal == ".set") {
return parseDirectiveSet();
}
- if (DirectiveID.getString() == ".fmask") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ if (IDVal == ".fmask") {
+ // Ignore this directive for now.
+ Parser.eatToEndOfStatement();
+ return false;
+ }
+
+ if (IDVal == ".mask") {
+ // Ignore this directive for now.
+ Parser.eatToEndOfStatement();
return false;
}
- if (DirectiveID.getString() == ".mask") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ if (IDVal == ".gpword") {
+ // Ignore this directive for now.
+ parseDirectiveGpWord();
return false;
}
- if (DirectiveID.getString() == ".gpword") {
- // ignore this directive for now
- Parser.EatToEndOfStatement();
+ if (IDVal == ".word") {
+ parseDirectiveWord(4, DirectiveID.getLoc());
+ return false;
+ }
+
+ if (IDVal == ".mips_hack_elf_flags")
+ return parseDirectiveMipsHackELFFlags();
+
+ if (IDVal == ".option")
+ return parseDirectiveOption();
+
+ if (IDVal == ".abicalls") {
+ getTargetStreamer().emitDirectiveAbiCalls();
+ if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
+ Error(Parser.getTok().getLoc(), "unexpected token in directive");
+ // Clear line
+ Parser.eatToEndOfStatement();
+ }
return false;
}
projects / oota-llvm.git / blobdiff