MCAsmParserSemaCallback::~MCAsmParserSemaCallback() {}
namespace {
-
/// \brief Helper types for tracking macro definitions.
typedef std::vector<AsmToken> MCAsmMacroArgument;
typedef std::vector<MCAsmMacroArgument> MCAsmMacroArguments;
-typedef std::pair<StringRef, MCAsmMacroArgument> MCAsmMacroParameter;
+
+struct MCAsmMacroParameter {
+ StringRef Name;
+ MCAsmMacroArgument Value;
+ bool Required;
+
+ MCAsmMacroParameter() : Required(false) { }
+};
+
typedef std::vector<MCAsmMacroParameter> MCAsmMacroParameters;
struct MCAsmMacro {
const MCAsmInfo &MAI);
virtual ~AsmParser();
- virtual bool Run(bool NoInitialTextSection, bool NoFinalize = false);
+ bool Run(bool NoInitialTextSection, bool NoFinalize = false) override;
- virtual void addDirectiveHandler(StringRef Directive,
- ExtensionDirectiveHandler Handler) {
+ void addDirectiveHandler(StringRef Directive,
+ ExtensionDirectiveHandler Handler) override {
ExtensionDirectiveMap[Directive] = Handler;
}
/// @name MCAsmParser Interface
/// {
- virtual SourceMgr &getSourceManager() { return SrcMgr; }
- virtual MCAsmLexer &getLexer() { return Lexer; }
- virtual MCContext &getContext() { return Ctx; }
- virtual MCStreamer &getStreamer() { return Out; }
- virtual unsigned getAssemblerDialect() {
+ SourceMgr &getSourceManager() override { return SrcMgr; }
+ MCAsmLexer &getLexer() override { return Lexer; }
+ MCContext &getContext() override { return Ctx; }
+ MCStreamer &getStreamer() override { return Out; }
+ unsigned getAssemblerDialect() override {
if (AssemblerDialect == ~0U)
return MAI.getAssemblerDialect();
else
return AssemblerDialect;
}
- virtual void setAssemblerDialect(unsigned i) {
+ void setAssemblerDialect(unsigned i) override {
AssemblerDialect = i;
}
- virtual void Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges = None);
- virtual bool Warning(SMLoc L, const Twine &Msg,
- ArrayRef<SMRange> Ranges = None);
- virtual bool Error(SMLoc L, const Twine &Msg,
- ArrayRef<SMRange> Ranges = None);
+ void Note(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = None) override;
+ bool Warning(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = None) override;
+ bool Error(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = None) override;
- virtual const AsmToken &Lex();
+ const AsmToken &Lex() override;
- void setParsingInlineAsm(bool V) { ParsingInlineAsm = V; }
- bool isParsingInlineAsm() { return ParsingInlineAsm; }
+ void setParsingInlineAsm(bool V) override { ParsingInlineAsm = V; }
+ bool isParsingInlineAsm() override { return ParsingInlineAsm; }
bool parseMSInlineAsm(void *AsmLoc, std::string &AsmString,
unsigned &NumOutputs, unsigned &NumInputs,
SmallVectorImpl<std::pair<void *,bool> > &OpDecls,
SmallVectorImpl<std::string> &Constraints,
SmallVectorImpl<std::string> &Clobbers,
- const MCInstrInfo *MII,
- const MCInstPrinter *IP,
- MCAsmParserSemaCallback &SI);
+ const MCInstrInfo *MII, const MCInstPrinter *IP,
+ MCAsmParserSemaCallback &SI) override;
bool parseExpression(const MCExpr *&Res);
- virtual bool parseExpression(const MCExpr *&Res, SMLoc &EndLoc);
- virtual bool parsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc);
- virtual bool parseParenExpression(const MCExpr *&Res, SMLoc &EndLoc);
- virtual bool parseAbsoluteExpression(int64_t &Res);
+ bool parseExpression(const MCExpr *&Res, SMLoc &EndLoc) override;
+ bool parsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) override;
+ bool parseParenExpression(const MCExpr *&Res, SMLoc &EndLoc) override;
+ bool parseAbsoluteExpression(int64_t &Res) override;
/// \brief Parse an identifier or string (as a quoted identifier)
/// and set \p Res to the identifier contents.
- virtual bool parseIdentifier(StringRef &Res);
- virtual void eatToEndOfStatement();
+ bool parseIdentifier(StringRef &Res) override;
+ void eatToEndOfStatement() override;
- virtual void checkForValidSection();
+ void checkForValidSection() override;
/// }
private:
/// \brief Parse up to the end of statement and a return the contents from the
/// current token until the end of the statement; the current token on exit
/// will be either the EndOfStatement or EOF.
- virtual StringRef parseStringToEndOfStatement();
+ StringRef parseStringToEndOfStatement() override;
/// \brief Parse until the end of a statement or a comma is encountered,
/// return the contents from the current token up to the end or comma.
DK_REFERENCE, DK_WEAK_DEFINITION, DK_WEAK_REFERENCE,
DK_WEAK_DEF_CAN_BE_HIDDEN, DK_COMM, DK_COMMON, DK_LCOMM, DK_ABORT,
DK_INCLUDE, DK_INCBIN, DK_CODE16, DK_CODE16GCC, DK_REPT, DK_IRP, DK_IRPC,
- DK_IF, DK_IFB, DK_IFNB, DK_IFC, DK_IFNC, DK_IFDEF, DK_IFNDEF, DK_IFNOTDEF,
- DK_ELSEIF, DK_ELSE, DK_ENDIF,
+ DK_IF, DK_IFNE, DK_IFB, DK_IFNB, DK_IFC, DK_IFEQS, DK_IFNC, DK_IFDEF,
+ DK_IFNDEF, DK_IFNOTDEF, DK_ELSEIF, DK_ELSE, DK_ENDIF,
DK_SPACE, DK_SKIP, DK_FILE, DK_LINE, DK_LOC, DK_STABS,
DK_CFI_SECTIONS, DK_CFI_STARTPROC, DK_CFI_ENDPROC, DK_CFI_DEF_CFA,
DK_CFI_DEF_CFA_OFFSET, DK_CFI_ADJUST_CFA_OFFSET, DK_CFI_DEF_CFA_REGISTER,
DK_CFI_REGISTER, DK_CFI_WINDOW_SAVE,
DK_MACROS_ON, DK_MACROS_OFF, DK_MACRO, DK_ENDM, DK_ENDMACRO, DK_PURGEM,
DK_SLEB128, DK_ULEB128,
+ DK_ERR, DK_ERROR,
DK_END
};
bool parseDirectiveInclude(); // ".include"
bool parseDirectiveIncbin(); // ".incbin"
- bool parseDirectiveIf(SMLoc DirectiveLoc); // ".if"
+ // ".if" or ".ifne"
+ bool parseDirectiveIf(SMLoc DirectiveLoc);
// ".ifb" or ".ifnb", depending on ExpectBlank.
bool parseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank);
// ".ifc" or ".ifnc", depending on ExpectEqual.
bool parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual);
+ // ".ifeqs"
+ bool parseDirectiveIfeqs(SMLoc DirectiveLoc);
// ".ifdef" or ".ifndef", depending on expect_defined
bool parseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined);
bool parseDirectiveElseIf(SMLoc DirectiveLoc); // ".elseif"
bool parseDirectiveElse(SMLoc DirectiveLoc); // ".else"
bool parseDirectiveEndIf(SMLoc DirectiveLoc); // .endif
- virtual bool parseEscapedString(std::string &Data);
+ bool parseEscapedString(std::string &Data) override;
const MCExpr *applyModifierToExpr(const MCExpr *E,
MCSymbolRefExpr::VariantKind Variant);
// "end"
bool parseDirectiveEnd(SMLoc DirectiveLoc);
+ // ".err" or ".error"
+ bool parseDirectiveError(SMLoc DirectiveLoc, bool WithMessage);
+
void initializeDirectiveKindMap();
};
}
getContext());
EndLoc = FirstTokenLoc;
return false;
- } else
- return Error(FirstTokenLoc, "invalid token in expression");
- return true;
+ }
+ return Error(FirstTokenLoc, "invalid token in expression");
}
}
// Parse symbol variant
} else if (MAI.doesAllowAtInName() && !MAI.useParensForSymbolVariant()) {
Variant = MCSymbolRefExpr::VK_None;
} else {
- Variant = MCSymbolRefExpr::VK_None;
return Error(SMLoc::getFromPointer(Split.second.begin()),
"invalid variant '" + Split.second + "'");
}
default:
break;
case DK_IF:
+ case DK_IFNE:
return parseDirectiveIf(IDLoc);
case DK_IFB:
return parseDirectiveIfb(IDLoc, true);
return parseDirectiveIfb(IDLoc, false);
case DK_IFC:
return parseDirectiveIfc(IDLoc, true);
+ case DK_IFEQS:
+ return parseDirectiveIfeqs(IDLoc);
case DK_IFNC:
return parseDirectiveIfc(IDLoc, false);
case DK_IFDEF:
return parseDirectivePurgeMacro(IDLoc);
case DK_END:
return parseDirectiveEnd(IDLoc);
+ case DK_ERR:
+ return parseDirectiveError(IDLoc, false);
+ case DK_ERROR:
+ return parseDirectiveError(IDLoc, true);
}
return Error(IDLoc, "unknown directive");
ArrayRef<MCAsmMacroParameter> Parameters,
ArrayRef<MCAsmMacroArgument> A, const SMLoc &L) {
unsigned NParameters = Parameters.size();
- if (NParameters != 0 && NParameters != A.size())
+ if ((!IsDarwin || NParameters != 0) && NParameters != A.size())
return Error(L, "Wrong number of arguments");
// A macro without parameters is handled differently on Darwin:
std::size_t End = Body.size(), Pos = 0;
for (; Pos != End; ++Pos) {
// Check for a substitution or escape.
- if (!NParameters) {
+ if (IsDarwin && !NParameters) {
// This macro has no parameters, look for $0, $1, etc.
if (Body[Pos] != '$' || Pos + 1 == End)
continue;
if (Pos == End)
break;
- if (!NParameters) {
+ if (IsDarwin && !NParameters) {
switch (Body[Pos + 1]) {
// $$ => $
case '$':
StringRef Argument(Begin, I - (Pos + 1));
unsigned Index = 0;
for (; Index < NParameters; ++Index)
- if (Parameters[Index].first == Argument)
+ if (Parameters[Index].Name == Argument)
break;
if (Index == NParameters) {
bool AsmParser::parseMacroArguments(const MCAsmMacro *M,
MCAsmMacroArguments &A) {
const unsigned NParameters = M ? M->Parameters.size() : 0;
+ bool NamedParametersFound = false;
+ SmallVector<SMLoc, 4> FALocs;
A.resize(NParameters);
- for (unsigned PI = 0; PI < NParameters; ++PI)
- if (!M->Parameters[PI].second.empty())
- A[PI] = M->Parameters[PI].second;
-
- bool NamedParametersFound = false;
+ FALocs.resize(NParameters);
// Parse two kinds of macro invocations:
// - macros defined without any parameters accept an arbitrary number of them
// - macros defined with parameters accept at most that many of them
for (unsigned Parameter = 0; !NParameters || Parameter < NParameters;
++Parameter) {
+ SMLoc IDLoc = Lexer.getLoc();
MCAsmMacroParameter FA;
- SMLoc L;
if (Lexer.is(AsmToken::Identifier) && Lexer.peekTok().is(AsmToken::Equal)) {
- L = Lexer.getLoc();
- if (parseIdentifier(FA.first)) {
- Error(L, "invalid argument identifier for formal argument");
+ if (parseIdentifier(FA.Name)) {
+ Error(IDLoc, "invalid argument identifier for formal argument");
eatToEndOfStatement();
return true;
}
NamedParametersFound = true;
}
- if (NamedParametersFound && FA.first.empty()) {
- Error(Lexer.getLoc(), "cannot mix positional and keyword arguments");
+ if (NamedParametersFound && FA.Name.empty()) {
+ Error(IDLoc, "cannot mix positional and keyword arguments");
eatToEndOfStatement();
return true;
}
- if (parseMacroArgument(FA.second))
+ if (parseMacroArgument(FA.Value))
return true;
unsigned PI = Parameter;
- if (!FA.first.empty()) {
+ if (!FA.Name.empty()) {
unsigned FAI = 0;
for (FAI = 0; FAI < NParameters; ++FAI)
- if (M->Parameters[FAI].first == FA.first)
+ if (M->Parameters[FAI].Name == FA.Name)
break;
+
if (FAI >= NParameters) {
- Error(L,
- "parameter named '" + FA.first + "' does not exist for macro '" +
+ Error(IDLoc,
+ "parameter named '" + FA.Name + "' does not exist for macro '" +
M->Name + "'");
return true;
}
PI = FAI;
}
- if (!FA.second.empty()) {
+ if (!FA.Value.empty()) {
if (A.size() <= PI)
A.resize(PI + 1);
- A[PI] = FA.second;
+ A[PI] = FA.Value;
+
+ if (FALocs.size() <= PI)
+ FALocs.resize(PI + 1);
+
+ FALocs[PI] = Lexer.getLoc();
}
// At the end of the statement, fill in remaining arguments that have
// default values. If there aren't any, then the next argument is
// required but missing
- if (Lexer.is(AsmToken::EndOfStatement))
- return false;
+ if (Lexer.is(AsmToken::EndOfStatement)) {
+ bool Failure = false;
+ for (unsigned FAI = 0; FAI < NParameters; ++FAI) {
+ if (A[FAI].empty()) {
+ if (M->Parameters[FAI].Required) {
+ Error(FALocs[FAI].isValid() ? FALocs[FAI] : Lexer.getLoc(),
+ "missing value for required parameter "
+ "'" + M->Parameters[FAI].Name + "' in macro '" + M->Name + "'");
+ Failure = true;
+ }
+
+ if (!M->Parameters[FAI].Value.empty())
+ A[FAI] = M->Parameters[FAI].Value;
+ }
+ }
+ return Failure;
+ }
if (Lexer.is(AsmToken::Comma))
Lex();
MCAsmMacroParameters Parameters;
while (getLexer().isNot(AsmToken::EndOfStatement)) {
MCAsmMacroParameter Parameter;
- if (parseIdentifier(Parameter.first))
+ if (parseIdentifier(Parameter.Name))
return TokError("expected identifier in '.macro' directive");
+ if (Lexer.is(AsmToken::Colon)) {
+ Lex(); // consume ':'
+
+ SMLoc QualLoc;
+ StringRef Qualifier;
+
+ QualLoc = Lexer.getLoc();
+ if (parseIdentifier(Qualifier))
+ return Error(QualLoc, "missing parameter qualifier for "
+ "'" + Parameter.Name + "' in macro '" + Name + "'");
+
+ if (Qualifier == "req")
+ Parameter.Required = true;
+ else
+ return Error(QualLoc, Qualifier + " is not a valid parameter qualifier "
+ "for '" + Parameter.Name + "' in macro '" + Name + "'");
+ }
+
if (getLexer().is(AsmToken::Equal)) {
Lex();
- if (parseMacroArgument(Parameter.second))
+
+ SMLoc ParamLoc;
+
+ ParamLoc = Lexer.getLoc();
+ if (parseMacroArgument(Parameter.Value))
return true;
+
+ if (Parameter.Required)
+ Warning(ParamLoc, "pointless default value for required parameter "
+ "'" + Parameter.Name + "' in macro '" + Name + "'");
}
Parameters.push_back(Parameter);
StringRef Argument(Begin, I - (Pos + 1));
unsigned Index = 0;
for (; Index < NParameters; ++Index)
- if (Parameters[Index].first == Argument)
+ if (Parameters[Index].Name == Argument)
break;
if (Index == NParameters) {
/// parseDirectiveIf
/// ::= .if expression
+/// ::= .ifne expression
bool AsmParser::parseDirectiveIf(SMLoc DirectiveLoc) {
TheCondStack.push_back(TheCondState);
TheCondState.TheCond = AsmCond::IfCond;
/// parseDirectiveIfc
/// ::= .ifc string1, string2
+/// ::= .ifnc string1, string2
bool AsmParser::parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
TheCondStack.push_back(TheCondState);
TheCondState.TheCond = AsmCond::IfCond;
Lex();
- TheCondState.CondMet = ExpectEqual == (Str1 == Str2);
+ TheCondState.CondMet = ExpectEqual == (Str1.trim() == Str2.trim());
TheCondState.Ignore = !TheCondState.CondMet;
}
return false;
}
+/// parseDirectiveIfeqs
+/// ::= .ifeqs string1, string2
+bool AsmParser::parseDirectiveIfeqs(SMLoc DirectiveLoc) {
+ if (Lexer.isNot(AsmToken::String)) {
+ TokError("expected string parameter for '.ifeqs' directive");
+ eatToEndOfStatement();
+ return true;
+ }
+
+ StringRef String1 = getTok().getStringContents();
+ Lex();
+
+ if (Lexer.isNot(AsmToken::Comma)) {
+ TokError("expected comma after first string for '.ifeqs' directive");
+ eatToEndOfStatement();
+ return true;
+ }
+
+ Lex();
+
+ if (Lexer.isNot(AsmToken::String)) {
+ TokError("expected string parameter for '.ifeqs' directive");
+ eatToEndOfStatement();
+ return true;
+ }
+
+ StringRef String2 = getTok().getStringContents();
+ Lex();
+
+ TheCondStack.push_back(TheCondState);
+ TheCondState.TheCond = AsmCond::IfCond;
+ TheCondState.CondMet = String1 == String2;
+ TheCondState.Ignore = !TheCondState.CondMet;
+
+ return false;
+}
+
/// parseDirectiveIfdef
/// ::= .ifdef symbol
bool AsmParser::parseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined) {
return false;
}
+/// parseDirectiveError
+/// ::= .err
+/// ::= .error [string]
+bool AsmParser::parseDirectiveError(SMLoc L, bool WithMessage) {
+ if (!TheCondStack.empty()) {
+ if (TheCondStack.back().Ignore) {
+ eatToEndOfStatement();
+ return false;
+ }
+ }
+
+ if (!WithMessage)
+ return Error(L, ".err encountered");
+
+ StringRef Message = ".error directive invoked in source file";
+ if (Lexer.isNot(AsmToken::EndOfStatement)) {
+ if (Lexer.isNot(AsmToken::String)) {
+ TokError(".error argument must be a string");
+ eatToEndOfStatement();
+ return true;
+ }
+
+ Message = getTok().getStringContents();
+ Lex();
+ }
+
+ Error(L, Message);
+ return true;
+}
+
/// parseDirectiveEndIf
/// ::= .endif
bool AsmParser::parseDirectiveEndIf(SMLoc DirectiveLoc) {
DirectiveKindMap[".bundle_lock"] = DK_BUNDLE_LOCK;
DirectiveKindMap[".bundle_unlock"] = DK_BUNDLE_UNLOCK;
DirectiveKindMap[".if"] = DK_IF;
+ DirectiveKindMap[".ifne"] = DK_IFNE;
DirectiveKindMap[".ifb"] = DK_IFB;
DirectiveKindMap[".ifnb"] = DK_IFNB;
DirectiveKindMap[".ifc"] = DK_IFC;
+ DirectiveKindMap[".ifeqs"] = DK_IFEQS;
DirectiveKindMap[".ifnc"] = DK_IFNC;
DirectiveKindMap[".ifdef"] = DK_IFDEF;
DirectiveKindMap[".ifndef"] = DK_IFNDEF;
DirectiveKindMap[".endm"] = DK_ENDM;
DirectiveKindMap[".endmacro"] = DK_ENDMACRO;
DirectiveKindMap[".purgem"] = DK_PURGEM;
+ DirectiveKindMap[".err"] = DK_ERR;
+ DirectiveKindMap[".error"] = DK_ERROR;
}
MCAsmMacro *AsmParser::parseMacroLikeBody(SMLoc DirectiveLoc) {
bool AsmParser::parseDirectiveIrp(SMLoc DirectiveLoc) {
MCAsmMacroParameter Parameter;
- if (parseIdentifier(Parameter.first))
+ if (parseIdentifier(Parameter.Name))
return TokError("expected identifier in '.irp' directive");
if (Lexer.isNot(AsmToken::Comma))
bool AsmParser::parseDirectiveIrpc(SMLoc DirectiveLoc) {
MCAsmMacroParameter Parameter;
- if (parseIdentifier(Parameter.first))
+ if (parseIdentifier(Parameter.Name))
return TokError("expected identifier in '.irpc' directive");
if (Lexer.isNot(AsmToken::Comma))
break;
}
case AOK_DotOperator:
+ // Insert the dot if the user omitted it.
+ OS.flush();
+ if (AsmStringIR.back() != '.')
+ OS << '.';
OS << (*I).Val;
break;
}
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