//
//===----------------------------------------------------------------------===//
-#include "llvm/Target/TargetAsmParser.h"
-#include "X86.h"
-#include "X86Subtarget.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/TargetAsmParser.h"
+#include "MCTargetDesc/X86BaseInfo.h"
+#include "llvm/MC/MCTargetAsmParser.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
#include "llvm/MC/MCParser/MCAsmParser.h"
#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
+
using namespace llvm;
namespace {
struct X86Operand;
-class X86ATTAsmParser : public TargetAsmParser {
+class X86AsmParser : public MCTargetAsmParser {
+ MCSubtargetInfo &STI;
MCAsmParser &Parser;
- TargetMachine &TM;
-
-protected:
- unsigned Is64Bit : 1;
-
private:
MCAsmParser &getParser() const { return Parser; }
MCAsmLexer &getLexer() const { return Parser.getLexer(); }
- bool Error(SMLoc L, const Twine &Msg) { return Parser.Error(L, Msg); }
+ bool Error(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = ArrayRef<SMRange>(),
+ bool matchingInlineAsm = false) {
+ if (matchingInlineAsm) return true;
+ return Parser.Error(L, Msg, Ranges);
+ }
- bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
+ X86Operand *ErrorOperand(SMLoc Loc, StringRef Msg) {
+ Error(Loc, Msg);
+ return 0;
+ }
X86Operand *ParseOperand();
+ X86Operand *ParseATTOperand();
+ X86Operand *ParseIntelOperand();
+ X86Operand *ParseIntelMemOperand();
+ X86Operand *ParseIntelBracExpression(unsigned SegReg, unsigned Size);
X86Operand *ParseMemOperand(unsigned SegReg, SMLoc StartLoc);
bool ParseDirectiveWord(unsigned Size, SMLoc L);
+ bool ParseDirectiveCode(StringRef IDVal, SMLoc L);
+
+ bool processInstruction(MCInst &Inst,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
bool MatchAndEmitInstruction(SMLoc IDLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands,
MCStreamer &Out);
+ bool MatchInstruction(SMLoc IDLoc,
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ SmallVectorImpl<MCInst> &MCInsts,
+ unsigned &OrigErrorInfo,
+ bool matchingInlineAsm = false);
+
+ /// isSrcOp - Returns true if operand is either (%rsi) or %ds:%(rsi)
+ /// in 64bit mode or (%esi) or %es:(%esi) in 32bit mode.
+ bool isSrcOp(X86Operand &Op);
+
+ /// isDstOp - Returns true if operand is either (%rdi) or %es:(%rdi)
+ /// in 64bit mode or (%edi) or %es:(%edi) in 32bit mode.
+ bool isDstOp(X86Operand &Op);
+
+ bool is64BitMode() const {
+ // FIXME: Can tablegen auto-generate this?
+ return (STI.getFeatureBits() & X86::Mode64Bit) != 0;
+ }
+ void SwitchMode() {
+ unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(X86::Mode64Bit));
+ setAvailableFeatures(FB);
+ }
+
/// @name Auto-generated Matcher Functions
/// {
/// }
public:
- X86ATTAsmParser(const Target &T, MCAsmParser &parser, TargetMachine &TM)
- : TargetAsmParser(T), Parser(parser), TM(TM) {
+ X86AsmParser(MCSubtargetInfo &sti, MCAsmParser &parser)
+ : MCTargetAsmParser(), STI(sti), Parser(parser) {
// Initialize the set of available features.
- setAvailableFeatures(ComputeAvailableFeatures(
- &TM.getSubtarget<X86Subtarget>()));
+ setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
}
+ virtual bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc);
virtual bool ParseInstruction(StringRef Name, SMLoc NameLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands);
virtual bool ParseDirective(AsmToken DirectiveID);
-};
-
-class X86_32ATTAsmParser : public X86ATTAsmParser {
-public:
- X86_32ATTAsmParser(const Target &T, MCAsmParser &Parser, TargetMachine &TM)
- : X86ATTAsmParser(T, Parser, TM) {
- Is64Bit = false;
- }
-};
-class X86_64ATTAsmParser : public X86ATTAsmParser {
-public:
- X86_64ATTAsmParser(const Target &T, MCAsmParser &Parser, TargetMachine &TM)
- : X86ATTAsmParser(T, Parser, TM) {
- Is64Bit = true;
+ bool isParsingIntelSyntax() {
+ return getParser().getAssemblerDialect();
}
};
-
} // end anonymous namespace
/// @name Auto-generated Match Functions
/// }
+static bool isImmSExti16i8Value(uint64_t Value) {
+ return (( Value <= 0x000000000000007FULL)||
+ (0x000000000000FF80ULL <= Value && Value <= 0x000000000000FFFFULL)||
+ (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+}
+
+static bool isImmSExti32i8Value(uint64_t Value) {
+ return (( Value <= 0x000000000000007FULL)||
+ (0x00000000FFFFFF80ULL <= Value && Value <= 0x00000000FFFFFFFFULL)||
+ (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+}
+
+static bool isImmZExtu32u8Value(uint64_t Value) {
+ return (Value <= 0x00000000000000FFULL);
+}
+
+static bool isImmSExti64i8Value(uint64_t Value) {
+ return (( Value <= 0x000000000000007FULL)||
+ (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+}
+
+static bool isImmSExti64i32Value(uint64_t Value) {
+ return (( Value <= 0x000000007FFFFFFFULL)||
+ (0xFFFFFFFF80000000ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+}
namespace {
/// X86Operand - Instances of this class represent a parsed X86 machine
unsigned BaseReg;
unsigned IndexReg;
unsigned Scale;
+ unsigned Size;
} Mem;
};
/// getEndLoc - Get the location of the last token of this operand.
SMLoc getEndLoc() const { return EndLoc; }
- virtual void dump(raw_ostream &OS) const {}
+ SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
+
+ virtual void print(raw_ostream &OS) const {}
StringRef getToken() const {
assert(Kind == Token && "Invalid access!");
// Otherwise, check the value is in a range that makes sense for this
// extension.
- uint64_t Value = CE->getValue();
- return (( Value <= 0x000000000000007FULL)||
- (0x000000000000FF80ULL <= Value && Value <= 0x000000000000FFFFULL)||
- (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+ return isImmSExti16i8Value(CE->getValue());
}
bool isImmSExti32i8() const {
if (!isImm())
// Otherwise, check the value is in a range that makes sense for this
// extension.
- uint64_t Value = CE->getValue();
- return (( Value <= 0x000000000000007FULL)||
- (0x00000000FFFFFF80ULL <= Value && Value <= 0x00000000FFFFFFFFULL)||
- (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+ return isImmSExti32i8Value(CE->getValue());
+ }
+ bool isImmZExtu32u8() const {
+ if (!isImm())
+ return false;
+
+ // If this isn't a constant expr, just assume it fits and let relaxation
+ // handle it.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE)
+ return true;
+
+ // Otherwise, check the value is in a range that makes sense for this
+ // extension.
+ return isImmZExtu32u8Value(CE->getValue());
}
bool isImmSExti64i8() const {
if (!isImm())
// Otherwise, check the value is in a range that makes sense for this
// extension.
- uint64_t Value = CE->getValue();
- return (( Value <= 0x000000000000007FULL)||
- (0xFFFFFFFFFFFFFF80ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+ return isImmSExti64i8Value(CE->getValue());
}
bool isImmSExti64i32() const {
if (!isImm())
// Otherwise, check the value is in a range that makes sense for this
// extension.
- uint64_t Value = CE->getValue();
- return (( Value <= 0x000000007FFFFFFFULL)||
- (0xFFFFFFFF80000000ULL <= Value && Value <= 0xFFFFFFFFFFFFFFFFULL));
+ return isImmSExti64i32Value(CE->getValue());
}
bool isMem() const { return Kind == Memory; }
+ bool isMem8() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 8);
+ }
+ bool isMem16() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 16);
+ }
+ bool isMem32() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 32);
+ }
+ bool isMem64() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 64);
+ }
+ bool isMem80() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 80);
+ }
+ bool isMem128() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 128);
+ }
+ bool isMem256() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 256);
+ }
+
+ bool isMemVX32() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 32) &&
+ getMemIndexReg() >= X86::XMM0 && getMemIndexReg() <= X86::XMM15;
+ }
+ bool isMemVY32() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 32) &&
+ getMemIndexReg() >= X86::YMM0 && getMemIndexReg() <= X86::YMM15;
+ }
+ bool isMemVX64() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 64) &&
+ getMemIndexReg() >= X86::XMM0 && getMemIndexReg() <= X86::XMM15;
+ }
+ bool isMemVY64() const {
+ return Kind == Memory && (!Mem.Size || Mem.Size == 64) &&
+ getMemIndexReg() >= X86::YMM0 && getMemIndexReg() <= X86::YMM15;
+ }
bool isAbsMem() const {
return Kind == Memory && !getMemSegReg() && !getMemBaseReg() &&
addExpr(Inst, getImm());
}
+ void addMem8Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem16Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem32Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem64Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem80Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem128Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMem256Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMemVX32Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMemVY32Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMemVX64Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+ void addMemVY64Operands(MCInst &Inst, unsigned N) const {
+ addMemOperands(Inst, N);
+ }
+
void addMemOperands(MCInst &Inst, unsigned N) const {
assert((N == 5) && "Invalid number of operands!");
Inst.addOperand(MCOperand::CreateReg(getMemBaseReg()));
void addAbsMemOperands(MCInst &Inst, unsigned N) const {
assert((N == 1) && "Invalid number of operands!");
- Inst.addOperand(MCOperand::CreateExpr(getMemDisp()));
+ // Add as immediates when possible.
+ if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getMemDisp()))
+ Inst.addOperand(MCOperand::CreateImm(CE->getValue()));
+ else
+ Inst.addOperand(MCOperand::CreateExpr(getMemDisp()));
}
static X86Operand *CreateToken(StringRef Str, SMLoc Loc) {
- X86Operand *Res = new X86Operand(Token, Loc, Loc);
+ SMLoc EndLoc = SMLoc::getFromPointer(Loc.getPointer() + Str.size() - 1);
+ X86Operand *Res = new X86Operand(Token, Loc, EndLoc);
Res->Tok.Data = Str.data();
Res->Tok.Length = Str.size();
return Res;
/// Create an absolute memory operand.
static X86Operand *CreateMem(const MCExpr *Disp, SMLoc StartLoc,
- SMLoc EndLoc) {
+ SMLoc EndLoc, unsigned Size = 0) {
X86Operand *Res = new X86Operand(Memory, StartLoc, EndLoc);
Res->Mem.SegReg = 0;
Res->Mem.Disp = Disp;
Res->Mem.BaseReg = 0;
Res->Mem.IndexReg = 0;
Res->Mem.Scale = 1;
+ Res->Mem.Size = Size;
return Res;
}
/// Create a generalized memory operand.
static X86Operand *CreateMem(unsigned SegReg, const MCExpr *Disp,
unsigned BaseReg, unsigned IndexReg,
- unsigned Scale, SMLoc StartLoc, SMLoc EndLoc) {
+ unsigned Scale, SMLoc StartLoc, SMLoc EndLoc,
+ unsigned Size = 0) {
// We should never just have a displacement, that should be parsed as an
// absolute memory operand.
assert((SegReg || BaseReg || IndexReg) && "Invalid memory operand!");
Res->Mem.BaseReg = BaseReg;
Res->Mem.IndexReg = IndexReg;
Res->Mem.Scale = Scale;
+ Res->Mem.Size = Size;
return Res;
}
};
} // end anonymous namespace.
+bool X86AsmParser::isSrcOp(X86Operand &Op) {
+ unsigned basereg = is64BitMode() ? X86::RSI : X86::ESI;
+
+ return (Op.isMem() &&
+ (Op.Mem.SegReg == 0 || Op.Mem.SegReg == X86::DS) &&
+ isa<MCConstantExpr>(Op.Mem.Disp) &&
+ cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 &&
+ Op.Mem.BaseReg == basereg && Op.Mem.IndexReg == 0);
+}
-bool X86ATTAsmParser::ParseRegister(unsigned &RegNo,
- SMLoc &StartLoc, SMLoc &EndLoc) {
+bool X86AsmParser::isDstOp(X86Operand &Op) {
+ unsigned basereg = is64BitMode() ? X86::RDI : X86::EDI;
+
+ return Op.isMem() &&
+ (Op.Mem.SegReg == 0 || Op.Mem.SegReg == X86::ES) &&
+ isa<MCConstantExpr>(Op.Mem.Disp) &&
+ cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 &&
+ Op.Mem.BaseReg == basereg && Op.Mem.IndexReg == 0;
+}
+
+bool X86AsmParser::ParseRegister(unsigned &RegNo,
+ SMLoc &StartLoc, SMLoc &EndLoc) {
RegNo = 0;
- const AsmToken &TokPercent = Parser.getTok();
- assert(TokPercent.is(AsmToken::Percent) && "Invalid token kind!");
- StartLoc = TokPercent.getLoc();
- Parser.Lex(); // Eat percent token.
+ if (!isParsingIntelSyntax()) {
+ const AsmToken &TokPercent = Parser.getTok();
+ assert(TokPercent.is(AsmToken::Percent) && "Invalid token kind!");
+ StartLoc = TokPercent.getLoc();
+ Parser.Lex(); // Eat percent token.
+ }
const AsmToken &Tok = Parser.getTok();
- if (Tok.isNot(AsmToken::Identifier))
- return Error(Tok.getLoc(), "invalid register name");
+ if (Tok.isNot(AsmToken::Identifier)) {
+ if (isParsingIntelSyntax()) return true;
+ return Error(StartLoc, "invalid register name",
+ SMRange(StartLoc, Tok.getEndLoc()));
+ }
- // FIXME: Validate register for the current architecture; we have to do
- // validation later, so maybe there is no need for this here.
RegNo = MatchRegisterName(Tok.getString());
// If the match failed, try the register name as lowercase.
if (RegNo == 0)
- RegNo = MatchRegisterName(LowercaseString(Tok.getString()));
-
- // FIXME: This should be done using Requires<In32BitMode> and
- // Requires<In64BitMode> so "eiz" usage in 64-bit instructions
- // can be also checked.
- if (RegNo == X86::RIZ && !Is64Bit)
- return Error(Tok.getLoc(), "riz register in 64-bit mode only");
+ RegNo = MatchRegisterName(Tok.getString().lower());
+
+ if (!is64BitMode()) {
+ // FIXME: This should be done using Requires<In32BitMode> and
+ // Requires<In64BitMode> so "eiz" usage in 64-bit instructions can be also
+ // checked.
+ // FIXME: Check AH, CH, DH, BH cannot be used in an instruction requiring a
+ // REX prefix.
+ if (RegNo == X86::RIZ ||
+ X86MCRegisterClasses[X86::GR64RegClassID].contains(RegNo) ||
+ X86II::isX86_64NonExtLowByteReg(RegNo) ||
+ X86II::isX86_64ExtendedReg(RegNo))
+ return Error(StartLoc, "register %"
+ + Tok.getString() + " is only available in 64-bit mode",
+ SMRange(StartLoc, Tok.getEndLoc()));
+ }
// Parse "%st" as "%st(0)" and "%st(1)", which is multiple tokens.
if (RegNo == 0 && (Tok.getString() == "st" || Tok.getString() == "ST")) {
}
}
- if (RegNo == 0)
- return Error(Tok.getLoc(), "invalid register name");
+ if (RegNo == 0) {
+ if (isParsingIntelSyntax()) return true;
+ return Error(StartLoc, "invalid register name",
+ SMRange(StartLoc, Tok.getEndLoc()));
+ }
- EndLoc = Tok.getLoc();
+ EndLoc = Tok.getEndLoc();
Parser.Lex(); // Eat identifier token.
return false;
}
-X86Operand *X86ATTAsmParser::ParseOperand() {
+X86Operand *X86AsmParser::ParseOperand() {
+ if (isParsingIntelSyntax())
+ return ParseIntelOperand();
+ return ParseATTOperand();
+}
+
+/// getIntelMemOperandSize - Return intel memory operand size.
+static unsigned getIntelMemOperandSize(StringRef OpStr) {
+ unsigned Size = 0;
+ if (OpStr == "BYTE") Size = 8;
+ if (OpStr == "WORD") Size = 16;
+ if (OpStr == "DWORD") Size = 32;
+ if (OpStr == "QWORD") Size = 64;
+ if (OpStr == "XWORD") Size = 80;
+ if (OpStr == "XMMWORD") Size = 128;
+ if (OpStr == "YMMWORD") Size = 256;
+ return Size;
+}
+
+X86Operand *X86AsmParser::ParseIntelBracExpression(unsigned SegReg,
+ unsigned Size) {
+ unsigned BaseReg = 0, IndexReg = 0, Scale = 1;
+ SMLoc Start = Parser.getTok().getLoc(), End;
+
+ const MCExpr *Disp = MCConstantExpr::Create(0, getParser().getContext());
+ // Parse [ BaseReg + Scale*IndexReg + Disp ] or [ symbol ]
+
+ // Eat '['
+ if (getLexer().isNot(AsmToken::LBrac))
+ return ErrorOperand(Start, "Expected '[' token!");
+ Parser.Lex();
+
+ if (getLexer().is(AsmToken::Identifier)) {
+ // Parse BaseReg
+ if (ParseRegister(BaseReg, Start, End)) {
+ // Handle '[' 'symbol' ']'
+ if (getParser().ParseExpression(Disp, End)) return 0;
+ if (getLexer().isNot(AsmToken::RBrac))
+ return ErrorOperand(Start, "Expected ']' token!");
+ Parser.Lex();
+ return X86Operand::CreateMem(Disp, Start, End, Size);
+ }
+ } else if (getLexer().is(AsmToken::Integer)) {
+ int64_t Val = Parser.getTok().getIntVal();
+ Parser.Lex();
+ SMLoc Loc = Parser.getTok().getLoc();
+ if (getLexer().is(AsmToken::RBrac)) {
+ // Handle '[' number ']'
+ Parser.Lex();
+ const MCExpr *Disp = MCConstantExpr::Create(Val, getContext());
+ if (SegReg)
+ return X86Operand::CreateMem(SegReg, Disp, 0, 0, Scale,
+ Start, End, Size);
+ return X86Operand::CreateMem(Disp, Start, End, Size);
+ } else if (getLexer().is(AsmToken::Star)) {
+ // Handle '[' Scale*IndexReg ']'
+ Parser.Lex();
+ SMLoc IdxRegLoc = Parser.getTok().getLoc();
+ if (ParseRegister(IndexReg, IdxRegLoc, End))
+ return ErrorOperand(IdxRegLoc, "Expected register");
+ Scale = Val;
+ } else
+ return ErrorOperand(Loc, "Unexpected token");
+ }
+
+ if (getLexer().is(AsmToken::Plus) || getLexer().is(AsmToken::Minus)) {
+ bool isPlus = getLexer().is(AsmToken::Plus);
+ Parser.Lex();
+ SMLoc PlusLoc = Parser.getTok().getLoc();
+ if (getLexer().is(AsmToken::Integer)) {
+ int64_t Val = Parser.getTok().getIntVal();
+ Parser.Lex();
+ if (getLexer().is(AsmToken::Star)) {
+ Parser.Lex();
+ SMLoc IdxRegLoc = Parser.getTok().getLoc();
+ if (ParseRegister(IndexReg, IdxRegLoc, End))
+ return ErrorOperand(IdxRegLoc, "Expected register");
+ Scale = Val;
+ } else if (getLexer().is(AsmToken::RBrac)) {
+ const MCExpr *ValExpr = MCConstantExpr::Create(Val, getContext());
+ Disp = isPlus ? ValExpr : MCConstantExpr::Create(0-Val, getContext());
+ } else
+ return ErrorOperand(PlusLoc, "unexpected token after +");
+ } else if (getLexer().is(AsmToken::Identifier)) {
+ // This could be an index register or a displacement expression.
+ End = Parser.getTok().getLoc();
+ if (!IndexReg)
+ ParseRegister(IndexReg, Start, End);
+ else if (getParser().ParseExpression(Disp, End)) return 0;
+ }
+ }
+
+ if (getLexer().isNot(AsmToken::RBrac))
+ if (getParser().ParseExpression(Disp, End)) return 0;
+
+ End = Parser.getTok().getLoc();
+ if (getLexer().isNot(AsmToken::RBrac))
+ return ErrorOperand(End, "expected ']' token!");
+ Parser.Lex();
+ End = Parser.getTok().getLoc();
+
+ // handle [-42]
+ if (!BaseReg && !IndexReg)
+ return X86Operand::CreateMem(Disp, Start, End, Size);
+
+ return X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale,
+ Start, End, Size);
+}
+
+/// ParseIntelMemOperand - Parse intel style memory operand.
+X86Operand *X86AsmParser::ParseIntelMemOperand() {
+ const AsmToken &Tok = Parser.getTok();
+ SMLoc Start = Parser.getTok().getLoc(), End;
+ unsigned SegReg = 0;
+
+ unsigned Size = getIntelMemOperandSize(Tok.getString());
+ if (Size) {
+ Parser.Lex();
+ assert (Tok.getString() == "PTR" && "Unexpected token!");
+ Parser.Lex();
+ }
+
+ if (getLexer().is(AsmToken::LBrac))
+ return ParseIntelBracExpression(SegReg, Size);
+
+ if (!ParseRegister(SegReg, Start, End)) {
+ // Handel SegReg : [ ... ]
+ if (getLexer().isNot(AsmToken::Colon))
+ return ErrorOperand(Start, "Expected ':' token!");
+ Parser.Lex(); // Eat :
+ if (getLexer().isNot(AsmToken::LBrac))
+ return ErrorOperand(Start, "Expected '[' token!");
+ return ParseIntelBracExpression(SegReg, Size);
+ }
+
+ const MCExpr *Disp = MCConstantExpr::Create(0, getParser().getContext());
+ if (getParser().ParseExpression(Disp, End)) return 0;
+ return X86Operand::CreateMem(Disp, Start, End, Size);
+}
+
+X86Operand *X86AsmParser::ParseIntelOperand() {
+ SMLoc Start = Parser.getTok().getLoc(), End;
+
+ // immediate.
+ if (getLexer().is(AsmToken::Integer) || getLexer().is(AsmToken::Real) ||
+ getLexer().is(AsmToken::Minus)) {
+ const MCExpr *Val;
+ if (!getParser().ParseExpression(Val, End)) {
+ End = Parser.getTok().getLoc();
+ return X86Operand::CreateImm(Val, Start, End);
+ }
+ }
+
+ // register
+ unsigned RegNo = 0;
+ if (!ParseRegister(RegNo, Start, End)) {
+ End = Parser.getTok().getLoc();
+ return X86Operand::CreateReg(RegNo, Start, End);
+ }
+
+ // mem operand
+ return ParseIntelMemOperand();
+}
+
+X86Operand *X86AsmParser::ParseATTOperand() {
switch (getLexer().getKind()) {
default:
// Parse a memory operand with no segment register.
SMLoc Start, End;
if (ParseRegister(RegNo, Start, End)) return 0;
if (RegNo == X86::EIZ || RegNo == X86::RIZ) {
- Error(Start, "eiz and riz can only be used as index registers");
+ Error(Start, "%eiz and %riz can only be used as index registers",
+ SMRange(Start, End));
return 0;
}
/// ParseMemOperand: segment: disp(basereg, indexreg, scale). The '%ds:' prefix
/// has already been parsed if present.
-X86Operand *X86ATTAsmParser::ParseMemOperand(unsigned SegReg, SMLoc MemStart) {
+X86Operand *X86AsmParser::ParseMemOperand(unsigned SegReg, SMLoc MemStart) {
// We have to disambiguate a parenthesized expression "(4+5)" from the start
// of a memory operand with a missing displacement "(%ebx)" or "(,%eax)". The
// If we reached here, then we just ate the ( of the memory operand. Process
// the rest of the memory operand.
unsigned BaseReg = 0, IndexReg = 0, Scale = 1;
+ SMLoc IndexLoc;
if (getLexer().is(AsmToken::Percent)) {
- SMLoc L;
- if (ParseRegister(BaseReg, L, L)) return 0;
+ SMLoc StartLoc, EndLoc;
+ if (ParseRegister(BaseReg, StartLoc, EndLoc)) return 0;
if (BaseReg == X86::EIZ || BaseReg == X86::RIZ) {
- Error(L, "eiz and riz can only be used as index registers");
+ Error(StartLoc, "eiz and riz can only be used as index registers",
+ SMRange(StartLoc, EndLoc));
return 0;
}
}
if (getLexer().is(AsmToken::Comma)) {
Parser.Lex(); // Eat the comma.
+ IndexLoc = Parser.getTok().getLoc();
// Following the comma we should have either an index register, or a scale
// value. We don't support the later form, but we want to parse it
SMLoc Loc = Parser.getTok().getLoc();
int64_t ScaleVal;
- if (getParser().ParseAbsoluteExpression(ScaleVal))
+ if (getParser().ParseAbsoluteExpression(ScaleVal)){
+ Error(Loc, "expected scale expression");
return 0;
+ }
// Validate the scale amount.
if (ScaleVal != 1 && ScaleVal != 2 && ScaleVal != 4 && ScaleVal != 8){
SMLoc MemEnd = Parser.getTok().getLoc();
Parser.Lex(); // Eat the ')'.
+ // If we have both a base register and an index register make sure they are
+ // both 64-bit or 32-bit registers.
+ // To support VSIB, IndexReg can be 128-bit or 256-bit registers.
+ if (BaseReg != 0 && IndexReg != 0) {
+ if (X86MCRegisterClasses[X86::GR64RegClassID].contains(BaseReg) &&
+ (X86MCRegisterClasses[X86::GR16RegClassID].contains(IndexReg) ||
+ X86MCRegisterClasses[X86::GR32RegClassID].contains(IndexReg)) &&
+ IndexReg != X86::RIZ) {
+ Error(IndexLoc, "index register is 32-bit, but base register is 64-bit");
+ return 0;
+ }
+ if (X86MCRegisterClasses[X86::GR32RegClassID].contains(BaseReg) &&
+ (X86MCRegisterClasses[X86::GR16RegClassID].contains(IndexReg) ||
+ X86MCRegisterClasses[X86::GR64RegClassID].contains(IndexReg)) &&
+ IndexReg != X86::EIZ){
+ Error(IndexLoc, "index register is 64-bit, but base register is 32-bit");
+ return 0;
+ }
+ }
+
return X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale,
MemStart, MemEnd);
}
-bool X86ATTAsmParser::
+bool X86AsmParser::
ParseInstruction(StringRef Name, SMLoc NameLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
StringRef PatchedName = Name;
+ // FIXME: Hack to recognize setneb as setne.
+ if (PatchedName.startswith("set") && PatchedName.endswith("b") &&
+ PatchedName != "setb" && PatchedName != "setnb")
+ PatchedName = PatchedName.substr(0, Name.size()-1);
+
// FIXME: Hack to recognize cmp<comparison code>{ss,sd,ps,pd}.
const MCExpr *ExtraImmOp = 0;
if ((PatchedName.startswith("cmp") || PatchedName.startswith("vcmp")) &&
(PatchedName.endswith("ss") || PatchedName.endswith("sd") ||
PatchedName.endswith("ps") || PatchedName.endswith("pd"))) {
- bool IsVCMP = PatchedName.startswith("vcmp");
+ bool IsVCMP = PatchedName[0] == 'v';
unsigned SSECCIdx = IsVCMP ? 4 : 3;
unsigned SSEComparisonCode = StringSwitch<unsigned>(
PatchedName.slice(SSECCIdx, PatchedName.size() - 2))
- .Case("eq", 0)
- .Case("lt", 1)
- .Case("le", 2)
- .Case("unord", 3)
- .Case("neq", 4)
- .Case("nlt", 5)
- .Case("nle", 6)
- .Case("ord", 7)
- .Case("eq_uq", 8)
- .Case("nge", 9)
+ .Case("eq", 0x00)
+ .Case("lt", 0x01)
+ .Case("le", 0x02)
+ .Case("unord", 0x03)
+ .Case("neq", 0x04)
+ .Case("nlt", 0x05)
+ .Case("nle", 0x06)
+ .Case("ord", 0x07)
+ /* AVX only from here */
+ .Case("eq_uq", 0x08)
+ .Case("nge", 0x09)
.Case("ngt", 0x0A)
.Case("false", 0x0B)
.Case("neq_oq", 0x0C)
.Case("gt_oq", 0x1E)
.Case("true_us", 0x1F)
.Default(~0U);
- if (SSEComparisonCode != ~0U) {
+ if (SSEComparisonCode != ~0U && (IsVCMP || SSEComparisonCode < 8)) {
ExtraImmOp = MCConstantExpr::Create(SSEComparisonCode,
getParser().getContext());
if (PatchedName.endswith("ss")) {
}
}
- // FIXME: Hack to recognize vpclmul<src1_quadword, src2_quadword>dq
- if (PatchedName.startswith("vpclmul")) {
- unsigned CLMULQuadWordSelect = StringSwitch<unsigned>(
- PatchedName.slice(7, PatchedName.size() - 2))
- .Case("lqlq", 0x00) // src1[63:0], src2[63:0]
- .Case("hqlq", 0x01) // src1[127:64], src2[63:0]
- .Case("lqhq", 0x10) // src1[63:0], src2[127:64]
- .Case("hqhq", 0x11) // src1[127:64], src2[127:64]
- .Default(~0U);
- if (CLMULQuadWordSelect != ~0U) {
- ExtraImmOp = MCConstantExpr::Create(CLMULQuadWordSelect,
- getParser().getContext());
- assert(PatchedName.endswith("dq") && "Unexpected mnemonic!");
- PatchedName = "vpclmulqdq";
- }
- }
-
Operands.push_back(X86Operand::CreateToken(PatchedName, NameLoc));
- if (ExtraImmOp)
+ if (ExtraImmOp && !isParsingIntelSyntax())
Operands.push_back(X86Operand::CreateImm(ExtraImmOp, NameLoc, NameLoc));
-
// Determine whether this is an instruction prefix.
bool isPrefix =
Name == "lock" || Name == "rep" ||
Name == "repe" || Name == "repz" ||
- Name == "repne" || Name == "repnz";
+ Name == "repne" || Name == "repnz" ||
+ Name == "rex64" || Name == "data16";
// This does the actual operand parsing. Don't parse any more if we have a
}
if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ SMLoc Loc = getLexer().getLoc();
Parser.EatToEndOfStatement();
- return TokError("unexpected token in argument list");
+ return Error(Loc, "unexpected token in argument list");
}
}
if (getLexer().is(AsmToken::EndOfStatement))
Parser.Lex(); // Consume the EndOfStatement
+ else if (isPrefix && getLexer().is(AsmToken::Slash))
+ Parser.Lex(); // Consume the prefix separator Slash
- // Hack to allow 'movq <largeimm>, <reg>' as an alias for movabsq.
- if ((Name == "movq" || Name == "mov") && Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[2])->isReg() &&
- static_cast<X86Operand*>(Operands[1])->isImm() &&
- !static_cast<X86Operand*>(Operands[1])->isImmSExti64i32()) {
- delete Operands[0];
- Operands[0] = X86Operand::CreateToken("movabsq", NameLoc);
+ if (ExtraImmOp && isParsingIntelSyntax())
+ Operands.push_back(X86Operand::CreateImm(ExtraImmOp, NameLoc, NameLoc));
+
+ // This is a terrible hack to handle "out[bwl]? %al, (%dx)" ->
+ // "outb %al, %dx". Out doesn't take a memory form, but this is a widely
+ // documented form in various unofficial manuals, so a lot of code uses it.
+ if ((Name == "outb" || Name == "outw" || Name == "outl" || Name == "out") &&
+ Operands.size() == 3) {
+ X86Operand &Op = *(X86Operand*)Operands.back();
+ if (Op.isMem() && Op.Mem.SegReg == 0 &&
+ isa<MCConstantExpr>(Op.Mem.Disp) &&
+ cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 &&
+ Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) {
+ SMLoc Loc = Op.getEndLoc();
+ Operands.back() = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc);
+ delete &Op;
+ }
+ }
+ // Same hack for "in[bwl]? (%dx), %al" -> "inb %dx, %al".
+ if ((Name == "inb" || Name == "inw" || Name == "inl" || Name == "in") &&
+ Operands.size() == 3) {
+ X86Operand &Op = *(X86Operand*)Operands.begin()[1];
+ if (Op.isMem() && Op.Mem.SegReg == 0 &&
+ isa<MCConstantExpr>(Op.Mem.Disp) &&
+ cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 &&
+ Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) {
+ SMLoc Loc = Op.getEndLoc();
+ Operands.begin()[1] = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc);
+ delete &Op;
+ }
+ }
+ // Transform "ins[bwl] %dx, %es:(%edi)" into "ins[bwl]"
+ if (Name.startswith("ins") && Operands.size() == 3 &&
+ (Name == "insb" || Name == "insw" || Name == "insl")) {
+ X86Operand &Op = *(X86Operand*)Operands.begin()[1];
+ X86Operand &Op2 = *(X86Operand*)Operands.begin()[2];
+ if (Op.isReg() && Op.getReg() == X86::DX && isDstOp(Op2)) {
+ Operands.pop_back();
+ Operands.pop_back();
+ delete &Op;
+ delete &Op2;
+ }
+ }
+
+ // Transform "outs[bwl] %ds:(%esi), %dx" into "out[bwl]"
+ if (Name.startswith("outs") && Operands.size() == 3 &&
+ (Name == "outsb" || Name == "outsw" || Name == "outsl")) {
+ X86Operand &Op = *(X86Operand*)Operands.begin()[1];
+ X86Operand &Op2 = *(X86Operand*)Operands.begin()[2];
+ if (isSrcOp(Op) && Op2.isReg() && Op2.getReg() == X86::DX) {
+ Operands.pop_back();
+ Operands.pop_back();
+ delete &Op;
+ delete &Op2;
+ }
+ }
+
+ // Transform "movs[bwl] %ds:(%esi), %es:(%edi)" into "movs[bwl]"
+ if (Name.startswith("movs") && Operands.size() == 3 &&
+ (Name == "movsb" || Name == "movsw" || Name == "movsl" ||
+ (is64BitMode() && Name == "movsq"))) {
+ X86Operand &Op = *(X86Operand*)Operands.begin()[1];
+ X86Operand &Op2 = *(X86Operand*)Operands.begin()[2];
+ if (isSrcOp(Op) && isDstOp(Op2)) {
+ Operands.pop_back();
+ Operands.pop_back();
+ delete &Op;
+ delete &Op2;
+ }
+ }
+ // Transform "lods[bwl] %ds:(%esi),{%al,%ax,%eax,%rax}" into "lods[bwl]"
+ if (Name.startswith("lods") && Operands.size() == 3 &&
+ (Name == "lods" || Name == "lodsb" || Name == "lodsw" ||
+ Name == "lodsl" || (is64BitMode() && Name == "lodsq"))) {
+ X86Operand *Op1 = static_cast<X86Operand*>(Operands[1]);
+ X86Operand *Op2 = static_cast<X86Operand*>(Operands[2]);
+ if (isSrcOp(*Op1) && Op2->isReg()) {
+ const char *ins;
+ unsigned reg = Op2->getReg();
+ bool isLods = Name == "lods";
+ if (reg == X86::AL && (isLods || Name == "lodsb"))
+ ins = "lodsb";
+ else if (reg == X86::AX && (isLods || Name == "lodsw"))
+ ins = "lodsw";
+ else if (reg == X86::EAX && (isLods || Name == "lodsl"))
+ ins = "lodsl";
+ else if (reg == X86::RAX && (isLods || Name == "lodsq"))
+ ins = "lodsq";
+ else
+ ins = NULL;
+ if (ins != NULL) {
+ Operands.pop_back();
+ Operands.pop_back();
+ delete Op1;
+ delete Op2;
+ if (Name != ins)
+ static_cast<X86Operand*>(Operands[0])->setTokenValue(ins);
+ }
+ }
+ }
+ // Transform "stos[bwl] {%al,%ax,%eax,%rax},%es:(%edi)" into "stos[bwl]"
+ if (Name.startswith("stos") && Operands.size() == 3 &&
+ (Name == "stos" || Name == "stosb" || Name == "stosw" ||
+ Name == "stosl" || (is64BitMode() && Name == "stosq"))) {
+ X86Operand *Op1 = static_cast<X86Operand*>(Operands[1]);
+ X86Operand *Op2 = static_cast<X86Operand*>(Operands[2]);
+ if (isDstOp(*Op2) && Op1->isReg()) {
+ const char *ins;
+ unsigned reg = Op1->getReg();
+ bool isStos = Name == "stos";
+ if (reg == X86::AL && (isStos || Name == "stosb"))
+ ins = "stosb";
+ else if (reg == X86::AX && (isStos || Name == "stosw"))
+ ins = "stosw";
+ else if (reg == X86::EAX && (isStos || Name == "stosl"))
+ ins = "stosl";
+ else if (reg == X86::RAX && (isStos || Name == "stosq"))
+ ins = "stosq";
+ else
+ ins = NULL;
+ if (ins != NULL) {
+ Operands.pop_back();
+ Operands.pop_back();
+ delete Op1;
+ delete Op2;
+ if (Name != ins)
+ static_cast<X86Operand*>(Operands[0])->setTokenValue(ins);
+ }
+ }
}
// FIXME: Hack to handle recognize s{hr,ar,hl} $1, <op>. Canonicalize to
// "shift <op>".
if ((Name.startswith("shr") || Name.startswith("sar") ||
- Name.startswith("shl") || Name.startswith("sal")) &&
+ Name.startswith("shl") || Name.startswith("sal") ||
+ Name.startswith("rcl") || Name.startswith("rcr") ||
+ Name.startswith("rol") || Name.startswith("ror")) &&
Operands.size() == 3) {
+ if (isParsingIntelSyntax()) {
+ // Intel syntax
+ X86Operand *Op1 = static_cast<X86Operand*>(Operands[2]);
+ if (Op1->isImm() && isa<MCConstantExpr>(Op1->getImm()) &&
+ cast<MCConstantExpr>(Op1->getImm())->getValue() == 1) {
+ delete Operands[2];
+ Operands.pop_back();
+ }
+ } else {
+ X86Operand *Op1 = static_cast<X86Operand*>(Operands[1]);
+ if (Op1->isImm() && isa<MCConstantExpr>(Op1->getImm()) &&
+ cast<MCConstantExpr>(Op1->getImm())->getValue() == 1) {
+ delete Operands[1];
+ Operands.erase(Operands.begin() + 1);
+ }
+ }
+ }
+
+ // Transforms "int $3" into "int3" as a size optimization. We can't write an
+ // instalias with an immediate operand yet.
+ if (Name == "int" && Operands.size() == 2) {
X86Operand *Op1 = static_cast<X86Operand*>(Operands[1]);
if (Op1->isImm() && isa<MCConstantExpr>(Op1->getImm()) &&
- cast<MCConstantExpr>(Op1->getImm())->getValue() == 1) {
+ cast<MCConstantExpr>(Op1->getImm())->getValue() == 3) {
delete Operands[1];
Operands.erase(Operands.begin() + 1);
+ static_cast<X86Operand*>(Operands[0])->setTokenValue("int3");
}
}
- // FIXME: Hack to handle recognize "rc[lr] <op>" -> "rcl $1, <op>".
- if ((Name.startswith("rcl") || Name.startswith("rcr")) &&
- Operands.size() == 2) {
- const MCExpr *One = MCConstantExpr::Create(1, getParser().getContext());
- Operands.push_back(X86Operand::CreateImm(One, NameLoc, NameLoc));
- std::swap(Operands[1], Operands[2]);
+ return false;
+}
+
+bool X86AsmParser::
+processInstruction(MCInst &Inst,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Ops) {
+ switch (Inst.getOpcode()) {
+ default: return false;
+ case X86::AND16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::AND16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::AND32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // FIXME: Hack to handle recognize "sh[lr]d op,op" -> "shld $1, op,op".
- if ((Name.startswith("shld") || Name.startswith("shrd")) &&
- Operands.size() == 3) {
- const MCExpr *One = MCConstantExpr::Create(1, getParser().getContext());
- Operands.insert(Operands.begin()+1,
- X86Operand::CreateImm(One, NameLoc, NameLoc));
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::AND32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::AND64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::AND64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::XOR16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // FIXME: Hack to handle recognize "in[bwl] <op>". Canonicalize it to
- // "inb <op>, %al".
- if ((Name == "inb" || Name == "inw" || Name == "inl") &&
- Operands.size() == 2) {
- unsigned Reg;
- if (Name[2] == 'b')
- Reg = MatchRegisterName("al");
- else if (Name[2] == 'w')
- Reg = MatchRegisterName("ax");
- else
- Reg = MatchRegisterName("eax");
- SMLoc Loc = Operands.back()->getEndLoc();
- Operands.push_back(X86Operand::CreateReg(Reg, Loc, Loc));
- }
-
- // FIXME: Hack to handle recognize "out[bwl] <op>". Canonicalize it to
- // "outb %al, <op>".
- if ((Name == "outb" || Name == "outw" || Name == "outl") &&
- Operands.size() == 2) {
- unsigned Reg;
- if (Name[3] == 'b')
- Reg = MatchRegisterName("al");
- else if (Name[3] == 'w')
- Reg = MatchRegisterName("ax");
- else
- Reg = MatchRegisterName("eax");
- SMLoc Loc = Operands.back()->getEndLoc();
- Operands.push_back(X86Operand::CreateReg(Reg, Loc, Loc));
- std::swap(Operands[1], Operands[2]);
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::XOR16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::XOR32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // FIXME: Hack to handle "out[bwl]? %al, (%dx)" -> "outb %al, %dx".
- if ((Name == "outb" || Name == "outw" || Name == "outl" || Name == "out") &&
- Operands.size() == 3) {
- X86Operand &Op = *(X86Operand*)Operands.back();
- if (Op.isMem() && Op.Mem.SegReg == 0 &&
- isa<MCConstantExpr>(Op.Mem.Disp) &&
- cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 &&
- Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) {
- SMLoc Loc = Op.getEndLoc();
- Operands.back() = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc);
- delete &Op;
- }
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::XOR32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::XOR64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // FIXME: Hack to handle "f{mul*,add*,sub*,div*} $op, st(0)" the same as
- // "f{mul*,add*,sub*,div*} $op"
- if ((Name.startswith("fmul") || Name.startswith("fadd") ||
- Name.startswith("fsub") || Name.startswith("fdiv")) &&
- Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[2])->isReg() &&
- static_cast<X86Operand*>(Operands[2])->getReg() == X86::ST0) {
- delete Operands[2];
- Operands.erase(Operands.begin() + 2);
- }
-
- // FIXME: Hack to handle "f{mulp,addp} st(0), $op" the same as
- // "f{mulp,addp} $op", since they commute. We also allow fdivrp/fsubrp even
- // though they don't commute, solely because gas does support this.
- if ((Name=="fmulp" || Name=="faddp" || Name=="fsubrp" || Name=="fdivrp") &&
- Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[1])->isReg() &&
- static_cast<X86Operand*>(Operands[1])->getReg() == X86::ST0) {
- delete Operands[1];
- Operands.erase(Operands.begin() + 1);
- }
-
- // FIXME: Hack to handle "imul <imm>, B" which is an alias for "imul <imm>, B,
- // B".
- if (Name.startswith("imul") && Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[1])->isImm() &&
- static_cast<X86Operand*>(Operands.back())->isReg()) {
- X86Operand *Op = static_cast<X86Operand*>(Operands.back());
- Operands.push_back(X86Operand::CreateReg(Op->getReg(), Op->getStartLoc(),
- Op->getEndLoc()));
- }
-
- // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
- // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
- // errors, since its encoding is the most compact.
- if (Name == "sldt" && Operands.size() == 2 &&
- static_cast<X86Operand*>(Operands[1])->isMem()) {
- delete Operands[0];
- Operands[0] = X86Operand::CreateToken("sldtw", NameLoc);
- }
-
- // The assembler accepts "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as
- // synonyms. Our tables only have the "<reg>, <mem>" form, so if we see the
- // other operand order, swap them.
- if (Name == "xchgb" || Name == "xchgw" || Name == "xchgl" || Name == "xchgq"||
- Name == "xchg")
- if (Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[1])->isMem() &&
- static_cast<X86Operand*>(Operands[2])->isReg()) {
- std::swap(Operands[1], Operands[2]);
- }
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::XOR64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::OR16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // The assembler accepts "testX <reg>, <mem>" and "testX <mem>, <reg>" as
- // synonyms. Our tables only have the "<mem>, <reg>" form, so if we see the
- // other operand order, swap them.
- if (Name == "testb" || Name == "testw" || Name == "testl" || Name == "testq"||
- Name == "test")
- if (Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[1])->isReg() &&
- static_cast<X86Operand*>(Operands[2])->isMem()) {
- std::swap(Operands[1], Operands[2]);
- }
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::OR16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::OR32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // The assembler accepts these instructions with no operand as a synonym for
- // an instruction acting on st(1). e.g. "fxch" -> "fxch %st(1)".
- if ((Name == "fxch" || Name == "fucom" || Name == "fucomp" ||
- Name == "faddp" || Name == "fsubp" || Name == "fsubrp" ||
- Name == "fmulp" || Name == "fdivp" || Name == "fdivrp") &&
- Operands.size() == 1) {
- Operands.push_back(X86Operand::CreateReg(MatchRegisterName("st(1)"),
- NameLoc, NameLoc));
- }
-
- // The assembler accepts these instructions with two few operands as a synonym
- // for taking %st(1),%st(0) or X, %st(0).
- if ((Name == "fcomi" || Name == "fucomi" || Name == "fucompi" ||
- Name == "fcompi" ) &&
- Operands.size() < 3) {
- if (Operands.size() == 1)
- Operands.push_back(X86Operand::CreateReg(MatchRegisterName("st(1)"),
- NameLoc, NameLoc));
- Operands.push_back(X86Operand::CreateReg(MatchRegisterName("st(0)"),
- NameLoc, NameLoc));
- }
-
- // The assembler accepts various amounts of brokenness for fnstsw.
- if (Name == "fnstsw" || Name == "fnstsww") {
- if (Operands.size() == 2 &&
- static_cast<X86Operand*>(Operands[1])->isReg()) {
- // "fnstsw al" and "fnstsw eax" -> "fnstw"
- unsigned Reg = static_cast<X86Operand*>(Operands[1])->Reg.RegNo;
- if (Reg == MatchRegisterName("eax") ||
- Reg == MatchRegisterName("al")) {
- delete Operands[1];
- Operands.pop_back();
- }
- }
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::OR32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::OR64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // "fnstw" -> "fnstw %ax"
- if (Operands.size() == 1)
- Operands.push_back(X86Operand::CreateReg(MatchRegisterName("ax"),
- NameLoc, NameLoc));
- }
-
- // jmp $42,$5 -> ljmp, similarly for call.
- if ((Name.startswith("call") || Name.startswith("jmp")) &&
- Operands.size() == 3 &&
- static_cast<X86Operand*>(Operands[1])->isImm() &&
- static_cast<X86Operand*>(Operands[2])->isImm()) {
- const char *NewOpName = StringSwitch<const char *>(Name)
- .Case("jmp", "ljmp")
- .Case("jmpw", "ljmpw")
- .Case("jmpl", "ljmpl")
- .Case("jmpq", "ljmpq")
- .Case("call", "lcall")
- .Case("callw", "lcallw")
- .Case("calll", "lcalll")
- .Case("callq", "lcallq")
- .Default(0);
- if (NewOpName) {
- delete Operands[0];
- Operands[0] = X86Operand::CreateToken(NewOpName, NameLoc);
- Name = NewOpName;
- }
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::OR64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::CMP16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // lcall and ljmp -> lcalll and ljmpl
- if ((Name == "lcall" || Name == "ljmp") && Operands.size() == 3) {
- delete Operands[0];
- Operands[0] = X86Operand::CreateToken(Name == "lcall" ? "lcalll" : "ljmpl",
- NameLoc);
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::CMP16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::CMP32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // fstp <mem> -> fstps <mem>. Without this, we'll default to fstpl due to
- // suffix searching.
- if (Name == "fstp" && Operands.size() == 2 &&
- static_cast<X86Operand*>(Operands[1])->isMem()) {
- delete Operands[0];
- Operands[0] = X86Operand::CreateToken("fstps", NameLoc);
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::CMP32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::CMP64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
- // FIXME: Hack to handle recognize "aa[dm]" -> "aa[dm] $0xA".
- if ((Name.startswith("aad") || Name.startswith("aam")) &&
- Operands.size() == 1) {
- const MCExpr *A = MCConstantExpr::Create(0xA, getParser().getContext());
- Operands.push_back(X86Operand::CreateImm(A, NameLoc, NameLoc));
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::CMP64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
}
+ case X86::ADD16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
- return false;
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::ADD16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::ADD32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::ADD32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::ADD64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::ADD64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::SUB16i16: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti16i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::SUB16ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::AX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::SUB32i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti32i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::SUB32ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::EAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ case X86::SUB64i32: {
+ if (!Inst.getOperand(0).isImm() ||
+ !isImmSExti64i8Value(Inst.getOperand(0).getImm()))
+ return false;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(X86::SUB64ri8);
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(MCOperand::CreateReg(X86::RAX));
+ TmpInst.addOperand(Inst.getOperand(0));
+ Inst = TmpInst;
+ return true;
+ }
+ }
}
-bool X86ATTAsmParser::
+bool X86AsmParser::
MatchAndEmitInstruction(SMLoc IDLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands,
MCStreamer &Out) {
+ SmallVector<MCInst, 2> Insts;
+ unsigned ErrorInfo;
+ bool Error = MatchInstruction(IDLoc, Operands, Insts, ErrorInfo);
+ if (!Error)
+ for (unsigned i = 0, e = Insts.size(); i != e; ++i)
+ Out.EmitInstruction(Insts[i]);
+ return Error;
+}
+
+bool X86AsmParser::
+MatchInstruction(SMLoc IDLoc,
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ SmallVectorImpl<MCInst> &MCInsts, unsigned &OrigErrorInfo,
+ bool matchingInlineAsm) {
assert(!Operands.empty() && "Unexpect empty operand list!");
X86Operand *Op = static_cast<X86Operand*>(Operands[0]);
assert(Op->isToken() && "Leading operand should always be a mnemonic!");
+ ArrayRef<SMRange> EmptyRanges = ArrayRef<SMRange>();
// First, handle aliases that expand to multiple instructions.
// FIXME: This should be replaced with a real .td file alias mechanism.
+ // Also, MatchInstructionImpl should do actually *do* the EmitInstruction
+ // call.
if (Op->getToken() == "fstsw" || Op->getToken() == "fstcw" ||
Op->getToken() == "fstsww" || Op->getToken() == "fstcww" ||
Op->getToken() == "finit" || Op->getToken() == "fsave" ||
Op->getToken() == "fstenv" || Op->getToken() == "fclex") {
MCInst Inst;
Inst.setOpcode(X86::WAIT);
- Out.EmitInstruction(Inst);
+ Inst.setLoc(IDLoc);
+ MCInsts.push_back(Inst);
const char *Repl =
StringSwitch<const char*>(Op->getToken())
}
bool WasOriginallyInvalidOperand = false;
- unsigned OrigErrorInfo;
MCInst Inst;
// First, try a direct match.
- switch (MatchInstructionImpl(Operands, Inst, OrigErrorInfo)) {
+ switch (MatchInstructionImpl(Operands, Inst, OrigErrorInfo,
+ isParsingIntelSyntax())) {
+ default: break;
case Match_Success:
- Out.EmitInstruction(Inst);
+ // Some instructions need post-processing to, for example, tweak which
+ // encoding is selected. Loop on it while changes happen so the
+ // individual transformations can chain off each other.
+ while (processInstruction(Inst, Operands))
+ ;
+
+ Inst.setLoc(IDLoc);
+ MCInsts.push_back(Inst);
return false;
case Match_MissingFeature:
- Error(IDLoc, "instruction requires a CPU feature not currently enabled");
+ Error(IDLoc, "instruction requires a CPU feature not currently enabled",
+ EmptyRanges, matchingInlineAsm);
return true;
+ case Match_ConversionFail:
+ return Error(IDLoc, "unable to convert operands to instruction",
+ EmptyRanges, matchingInlineAsm);
case Match_InvalidOperand:
WasOriginallyInvalidOperand = true;
break;
Tmp += ' ';
Op->setTokenValue(Tmp.str());
+ // If this instruction starts with an 'f', then it is a floating point stack
+ // instruction. These come in up to three forms for 32-bit, 64-bit, and
+ // 80-bit floating point, which use the suffixes s,l,t respectively.
+ //
+ // Otherwise, we assume that this may be an integer instruction, which comes
+ // in 8/16/32/64-bit forms using the b,w,l,q suffixes respectively.
+ const char *Suffixes = Base[0] != 'f' ? "bwlq" : "slt\0";
+
// Check for the various suffix matches.
- Tmp[Base.size()] = 'b';
- unsigned BErrorInfo, WErrorInfo, LErrorInfo, QErrorInfo;
- MatchResultTy MatchB = MatchInstructionImpl(Operands, Inst, BErrorInfo);
- Tmp[Base.size()] = 'w';
- MatchResultTy MatchW = MatchInstructionImpl(Operands, Inst, WErrorInfo);
- Tmp[Base.size()] = 'l';
- MatchResultTy MatchL = MatchInstructionImpl(Operands, Inst, LErrorInfo);
- Tmp[Base.size()] = 'q';
- MatchResultTy MatchQ = MatchInstructionImpl(Operands, Inst, QErrorInfo);
+ Tmp[Base.size()] = Suffixes[0];
+ unsigned ErrorInfoIgnore;
+ unsigned Match1, Match2, Match3, Match4;
+
+ Match1 = MatchInstructionImpl(Operands, Inst, ErrorInfoIgnore);
+ Tmp[Base.size()] = Suffixes[1];
+ Match2 = MatchInstructionImpl(Operands, Inst, ErrorInfoIgnore);
+ Tmp[Base.size()] = Suffixes[2];
+ Match3 = MatchInstructionImpl(Operands, Inst, ErrorInfoIgnore);
+ Tmp[Base.size()] = Suffixes[3];
+ Match4 = MatchInstructionImpl(Operands, Inst, ErrorInfoIgnore);
// Restore the old token.
Op->setTokenValue(Base);
// instruction will already have been filled in correctly, since the failing
// matches won't have modified it).
unsigned NumSuccessfulMatches =
- (MatchB == Match_Success) + (MatchW == Match_Success) +
- (MatchL == Match_Success) + (MatchQ == Match_Success);
+ (Match1 == Match_Success) + (Match2 == Match_Success) +
+ (Match3 == Match_Success) + (Match4 == Match_Success);
if (NumSuccessfulMatches == 1) {
- Out.EmitInstruction(Inst);
+ Inst.setLoc(IDLoc);
+ MCInsts.push_back(Inst);
return false;
}
if (NumSuccessfulMatches > 1) {
char MatchChars[4];
unsigned NumMatches = 0;
- if (MatchB == Match_Success)
- MatchChars[NumMatches++] = 'b';
- if (MatchW == Match_Success)
- MatchChars[NumMatches++] = 'w';
- if (MatchL == Match_Success)
- MatchChars[NumMatches++] = 'l';
- if (MatchQ == Match_Success)
- MatchChars[NumMatches++] = 'q';
+ if (Match1 == Match_Success) MatchChars[NumMatches++] = Suffixes[0];
+ if (Match2 == Match_Success) MatchChars[NumMatches++] = Suffixes[1];
+ if (Match3 == Match_Success) MatchChars[NumMatches++] = Suffixes[2];
+ if (Match4 == Match_Success) MatchChars[NumMatches++] = Suffixes[3];
SmallString<126> Msg;
raw_svector_ostream OS(Msg);
OS << "'" << Base << MatchChars[i] << "'";
}
OS << ")";
- Error(IDLoc, OS.str());
+ Error(IDLoc, OS.str(), EmptyRanges, matchingInlineAsm);
return true;
}
// If all of the instructions reported an invalid mnemonic, then the original
// mnemonic was invalid.
- if ((MatchB == Match_MnemonicFail) && (MatchW == Match_MnemonicFail) &&
- (MatchL == Match_MnemonicFail) && (MatchQ == Match_MnemonicFail)) {
+ if ((Match1 == Match_MnemonicFail) && (Match2 == Match_MnemonicFail) &&
+ (Match3 == Match_MnemonicFail) && (Match4 == Match_MnemonicFail)) {
if (!WasOriginallyInvalidOperand) {
- Error(IDLoc, "invalid instruction mnemonic '" + Base + "'");
- return true;
+ ArrayRef<SMRange> Ranges = matchingInlineAsm ? EmptyRanges :
+ Op->getLocRange();
+ return Error(IDLoc, "invalid instruction mnemonic '" + Base + "'",
+ Ranges, matchingInlineAsm);
}
// Recover location info for the operand if we know which was the problem.
- SMLoc ErrorLoc = IDLoc;
if (OrigErrorInfo != ~0U) {
if (OrigErrorInfo >= Operands.size())
- return Error(IDLoc, "too few operands for instruction");
-
- ErrorLoc = ((X86Operand*)Operands[OrigErrorInfo])->getStartLoc();
- if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
+ return Error(IDLoc, "too few operands for instruction",
+ EmptyRanges, matchingInlineAsm);
+
+ X86Operand *Operand = (X86Operand*)Operands[OrigErrorInfo];
+ if (Operand->getStartLoc().isValid()) {
+ SMRange OperandRange = Operand->getLocRange();
+ return Error(Operand->getStartLoc(), "invalid operand for instruction",
+ OperandRange, matchingInlineAsm);
+ }
}
- return Error(ErrorLoc, "invalid operand for instruction");
+ return Error(IDLoc, "invalid operand for instruction", EmptyRanges,
+ matchingInlineAsm);
}
// If one instruction matched with a missing feature, report this as a
// missing feature.
- if ((MatchB == Match_MissingFeature) + (MatchW == Match_MissingFeature) +
- (MatchL == Match_MissingFeature) + (MatchQ == Match_MissingFeature) == 1){
- Error(IDLoc, "instruction requires a CPU feature not currently enabled");
+ if ((Match1 == Match_MissingFeature) + (Match2 == Match_MissingFeature) +
+ (Match3 == Match_MissingFeature) + (Match4 == Match_MissingFeature) == 1){
+ Error(IDLoc, "instruction requires a CPU feature not currently enabled",
+ EmptyRanges, matchingInlineAsm);
return true;
}
// If one instruction matched with an invalid operand, report this as an
// operand failure.
- if ((MatchB == Match_InvalidOperand) + (MatchW == Match_InvalidOperand) +
- (MatchL == Match_InvalidOperand) + (MatchQ == Match_InvalidOperand) == 1){
- Error(IDLoc, "invalid operand for instruction");
+ if ((Match1 == Match_InvalidOperand) + (Match2 == Match_InvalidOperand) +
+ (Match3 == Match_InvalidOperand) + (Match4 == Match_InvalidOperand) == 1){
+ Error(IDLoc, "invalid operand for instruction", EmptyRanges,
+ matchingInlineAsm);
return true;
}
// If all of these were an outright failure, report it in a useless way.
- // FIXME: We should give nicer diagnostics about the exact failure.
- Error(IDLoc, "unknown use of instruction mnemonic without a size suffix");
+ Error(IDLoc, "unknown use of instruction mnemonic without a size suffix",
+ EmptyRanges, matchingInlineAsm);
return true;
}
-bool X86ATTAsmParser::ParseDirective(AsmToken DirectiveID) {
+bool X86AsmParser::ParseDirective(AsmToken DirectiveID) {
StringRef IDVal = DirectiveID.getIdentifier();
if (IDVal == ".word")
return ParseDirectiveWord(2, DirectiveID.getLoc());
+ else if (IDVal.startswith(".code"))
+ return ParseDirectiveCode(IDVal, DirectiveID.getLoc());
+ else if (IDVal.startswith(".intel_syntax")) {
+ getParser().setAssemblerDialect(1);
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ if(Parser.getTok().getString() == "noprefix") {
+ // FIXME : Handle noprefix
+ Parser.Lex();
+ } else
+ return true;
+ }
+ return false;
+ }
return true;
}
/// ParseDirectiveWord
/// ::= .word [ expression (, expression)* ]
-bool X86ATTAsmParser::ParseDirectiveWord(unsigned Size, SMLoc L) {
+bool X86AsmParser::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, 0 /*addrspace*/);
-
+
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;
}
+/// ParseDirectiveCode
+/// ::= .code32 | .code64
+bool X86AsmParser::ParseDirectiveCode(StringRef IDVal, SMLoc L) {
+ if (IDVal == ".code32") {
+ Parser.Lex();
+ if (is64BitMode()) {
+ SwitchMode();
+ getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32);
+ }
+ } else if (IDVal == ".code64") {
+ Parser.Lex();
+ if (!is64BitMode()) {
+ SwitchMode();
+ getParser().getStreamer().EmitAssemblerFlag(MCAF_Code64);
+ }
+ } else {
+ return Error(L, "unexpected directive " + IDVal);
+ }
+ return false;
+}
extern "C" void LLVMInitializeX86AsmLexer();
// Force static initialization.
extern "C" void LLVMInitializeX86AsmParser() {
- RegisterAsmParser<X86_32ATTAsmParser> X(TheX86_32Target);
- RegisterAsmParser<X86_64ATTAsmParser> Y(TheX86_64Target);
+ RegisterMCAsmParser<X86AsmParser> X(TheX86_32Target);
+ RegisterMCAsmParser<X86AsmParser> Y(TheX86_64Target);
LLVMInitializeX86AsmLexer();
}
projects / oota-llvm.git / blobdiff