MCStreamer &Out;
const MCAsmInfo &MAI;
SourceMgr &SrcMgr;
+ SourceMgr::DiagHandlerTy SavedDiagHandler;
+ void *SavedDiagContext;
MCAsmParserExtension *GenericParser;
MCAsmParserExtension *PlatformParser;
/// Flag tracking whether any errors have been encountered.
unsigned HadError : 1;
+ /// The values from the last parsed cpp hash file line comment if any.
+ StringRef CppHashFilename;
+ int64_t CppHashLineNumber;
+ SMLoc CppHashLoc;
+
public:
- AsmParser(const Target &T, SourceMgr &SM, MCContext &Ctx, MCStreamer &Out,
+ AsmParser(SourceMgr &SM, MCContext &Ctx, MCStreamer &Out,
const MCAsmInfo &MAI);
~AsmParser();
virtual MCContext &getContext() { return Ctx; }
virtual MCStreamer &getStreamer() { return Out; }
- virtual bool Warning(SMLoc L, const Twine &Msg);
- virtual bool Error(SMLoc L, const Twine &Msg);
+ virtual bool Warning(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = ArrayRef<SMRange>());
+ virtual bool Error(SMLoc L, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = ArrayRef<SMRange>());
const AsmToken &Lex();
void CheckForValidSection();
bool ParseStatement();
+ void EatToEndOfLine();
+ bool ParseCppHashLineFilenameComment(const SMLoc &L);
bool HandleMacroEntry(StringRef Name, SMLoc NameLoc, const Macro *M);
bool expandMacro(SmallString<256> &Buf, StringRef Body,
void HandleMacroExit();
void PrintMacroInstantiations();
- void PrintMessage(SMLoc Loc, const Twine &Msg, const char *Type,
- bool ShowLine = true) const {
- SrcMgr.PrintMessage(Loc, Msg, Type, ShowLine);
+ void PrintMessage(SMLoc Loc, SourceMgr::DiagKind Kind, const Twine &Msg,
+ ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) const {
+ SrcMgr.PrintMessage(Loc, Kind, Msg, Ranges);
}
+ static void DiagHandler(const SMDiagnostic &Diag, void *Context);
/// EnterIncludeFile - Enter the specified file. This returns true on failure.
bool EnterIncludeFile(const std::string &Filename);
enum { DEFAULT_ADDRSPACE = 0 };
-AsmParser::AsmParser(const Target &T, SourceMgr &_SM, MCContext &_Ctx,
+AsmParser::AsmParser(SourceMgr &_SM, MCContext &_Ctx,
MCStreamer &_Out, const MCAsmInfo &_MAI)
: Lexer(_MAI), Ctx(_Ctx), Out(_Out), MAI(_MAI), SrcMgr(_SM),
GenericParser(new GenericAsmParser), PlatformParser(0),
- CurBuffer(0), MacrosEnabled(true) {
+ CurBuffer(0), MacrosEnabled(true), CppHashLineNumber(0) {
+ // Save the old handler.
+ SavedDiagHandler = SrcMgr.getDiagHandler();
+ SavedDiagContext = SrcMgr.getDiagContext();
+ // Set our own handler which calls the saved handler.
+ SrcMgr.setDiagHandler(DiagHandler, this);
Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer));
// Initialize the generic parser.
// Print the active macro instantiation stack.
for (std::vector<MacroInstantiation*>::const_reverse_iterator
it = ActiveMacros.rbegin(), ie = ActiveMacros.rend(); it != ie; ++it)
- PrintMessage((*it)->InstantiationLoc, "while in macro instantiation",
- "note");
+ PrintMessage((*it)->InstantiationLoc, SourceMgr::DK_Note,
+ "while in macro instantiation");
}
-bool AsmParser::Warning(SMLoc L, const Twine &Msg) {
+bool AsmParser::Warning(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges) {
if (FatalAssemblerWarnings)
- return Error(L, Msg);
- PrintMessage(L, Msg, "warning");
+ return Error(L, Msg, Ranges);
+ PrintMessage(L, SourceMgr::DK_Warning, Msg, Ranges);
PrintMacroInstantiations();
return false;
}
-bool AsmParser::Error(SMLoc L, const Twine &Msg) {
+bool AsmParser::Error(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges) {
HadError = true;
- PrintMessage(L, Msg, "error");
+ PrintMessage(L, SourceMgr::DK_Error, Msg, Ranges);
PrintMacroInstantiations();
return true;
}
// FIXME: We would really like to refer back to where the symbol was
// first referenced for a source location. We need to add something
// to track that. Currently, we just point to the end of the file.
- PrintMessage(getLexer().getLoc(), "assembler local symbol '" +
- Sym->getName() + "' not defined", "error", false);
+ PrintMessage(getLexer().getLoc(), SourceMgr::DK_Error,
+ "assembler local symbol '" + Sym->getName() +
+ "' not defined");
}
}
/// ParseExpression - Parse an expression and return it.
///
-/// expr ::= expr +,- expr -> lowest.
-/// expr ::= expr |,^,&,! expr -> middle.
-/// expr ::= expr *,/,%,<<,>> expr -> highest.
+/// expr ::= expr &&,|| expr -> lowest.
+/// expr ::= expr |,^,&,! expr
+/// expr ::= expr ==,!=,<>,<,<=,>,>= expr
+/// expr ::= expr <<,>> expr
+/// expr ::= expr +,- expr
+/// expr ::= expr *,/,% expr -> highest.
/// expr ::= primaryexpr
///
bool AsmParser::ParseExpression(const MCExpr *&Res, SMLoc &EndLoc) {
default:
return 0; // not a binop.
- // Lowest Precedence: &&, ||, @
+ // Lowest Precedence: &&, ||
case AsmToken::AmpAmp:
Kind = MCBinaryExpr::LAnd;
return 1;
Kind = MCBinaryExpr::GTE;
return 3;
+ // Intermediate Precedence: <<, >>
+ case AsmToken::LessLess:
+ Kind = MCBinaryExpr::Shl;
+ return 4;
+ case AsmToken::GreaterGreater:
+ Kind = MCBinaryExpr::Shr;
+ return 4;
+
// High Intermediate Precedence: +, -
case AsmToken::Plus:
Kind = MCBinaryExpr::Add;
- return 4;
+ return 5;
case AsmToken::Minus:
Kind = MCBinaryExpr::Sub;
- return 4;
+ return 5;
- // Highest Precedence: *, /, %, <<, >>
+ // Highest Precedence: *, /, %
case AsmToken::Star:
Kind = MCBinaryExpr::Mul;
- return 5;
+ return 6;
case AsmToken::Slash:
Kind = MCBinaryExpr::Div;
- return 5;
+ return 6;
case AsmToken::Percent:
Kind = MCBinaryExpr::Mod;
- return 5;
- case AsmToken::LessLess:
- Kind = MCBinaryExpr::Shl;
- return 5;
- case AsmToken::GreaterGreater:
- Kind = MCBinaryExpr::Shr;
- return 5;
+ return 6;
}
}
StringRef IDVal;
int64_t LocalLabelVal = -1;
// A full line comment is a '#' as the first token.
- if (Lexer.is(AsmToken::Hash)) {
- EatToEndOfStatement();
- return false;
- }
+ if (Lexer.is(AsmToken::Hash))
+ return ParseCppHashLineFilenameComment(IDLoc);
// Allow an integer followed by a ':' as a directional local label.
if (Lexer.is(AsmToken::Integer)) {
}
OS << "]";
- PrintMessage(IDLoc, OS.str(), "note");
+ PrintMessage(IDLoc, SourceMgr::DK_Note, OS.str());
}
// If parsing succeeded, match the instruction.
return false;
}
+/// EatToEndOfLine uses the Lexer to eat the characters to the end of the line
+/// since they may not be able to be tokenized to get to the end of line token.
+void AsmParser::EatToEndOfLine() {
+ Lexer.LexUntilEndOfLine();
+ // Eat EOL.
+ Lex();
+}
+
+/// ParseCppHashLineFilenameComment as this:
+/// ::= # number "filename"
+/// or just as a full line comment if it doesn't have a number and a string.
+bool AsmParser::ParseCppHashLineFilenameComment(const SMLoc &L) {
+ Lex(); // Eat the hash token.
+
+ if (getLexer().isNot(AsmToken::Integer)) {
+ // Consume the line since in cases it is not a well-formed line directive,
+ // as if were simply a full line comment.
+ EatToEndOfLine();
+ return false;
+ }
+
+ int64_t LineNumber = getTok().getIntVal();
+ Lex();
+
+ if (getLexer().isNot(AsmToken::String)) {
+ EatToEndOfLine();
+ return false;
+ }
+
+ StringRef Filename = getTok().getString();
+ // Get rid of the enclosing quotes.
+ Filename = Filename.substr(1, Filename.size()-2);
+
+ // Save the SMLoc, Filename and LineNumber for later use by diagnostics.
+ CppHashLoc = L;
+ CppHashFilename = Filename;
+ CppHashLineNumber = LineNumber;
+
+ // Ignore any trailing characters, they're just comment.
+ EatToEndOfLine();
+ return false;
+}
+
+/// DiagHandler - will use the the last parsed cpp hash line filename comment
+/// for the Filename and LineNo if any in the diagnostic.
+void AsmParser::DiagHandler(const SMDiagnostic &Diag, void *Context) {
+ const AsmParser *Parser = static_cast<const AsmParser*>(Context);
+ raw_ostream &OS = errs();
+
+ const SourceMgr &DiagSrcMgr = *Diag.getSourceMgr();
+ const SMLoc &DiagLoc = Diag.getLoc();
+ int DiagBuf = DiagSrcMgr.FindBufferContainingLoc(DiagLoc);
+ int CppHashBuf = Parser->SrcMgr.FindBufferContainingLoc(Parser->CppHashLoc);
+
+ // Like SourceMgr::PrintMessage() we need to print the include stack if any
+ // before printing the message.
+ int DiagCurBuffer = DiagSrcMgr.FindBufferContainingLoc(DiagLoc);
+ if (!Parser->SavedDiagHandler && DiagCurBuffer > 0) {
+ SMLoc ParentIncludeLoc = DiagSrcMgr.getParentIncludeLoc(DiagCurBuffer);
+ DiagSrcMgr.PrintIncludeStack(ParentIncludeLoc, OS);
+ }
+
+ // If we have not parsed a cpp hash line filename comment or the source
+ // manager changed or buffer changed (like in a nested include) then just
+ // print the normal diagnostic using its Filename and LineNo.
+ if (!Parser->CppHashLineNumber ||
+ &DiagSrcMgr != &Parser->SrcMgr ||
+ DiagBuf != CppHashBuf) {
+ if (Parser->SavedDiagHandler)
+ Parser->SavedDiagHandler(Diag, Parser->SavedDiagContext);
+ else
+ Diag.print(0, OS);
+ return;
+ }
+
+ // Use the CppHashFilename and calculate a line number based on the
+ // CppHashLoc and CppHashLineNumber relative to this Diag's SMLoc for
+ // the diagnostic.
+ const std::string Filename = Parser->CppHashFilename;
+
+ int DiagLocLineNo = DiagSrcMgr.FindLineNumber(DiagLoc, DiagBuf);
+ int CppHashLocLineNo =
+ Parser->SrcMgr.FindLineNumber(Parser->CppHashLoc, CppHashBuf);
+ int LineNo = Parser->CppHashLineNumber - 1 +
+ (DiagLocLineNo - CppHashLocLineNo);
+
+ SMDiagnostic NewDiag(*Diag.getSourceMgr(), Diag.getLoc(),
+ Filename, LineNo, Diag.getColumnNo(),
+ Diag.getKind(), Diag.getMessage(),
+ Diag.getLineContents(), Diag.getRanges());
+
+ if (Parser->SavedDiagHandler)
+ Parser->SavedDiagHandler(NewDiag, Parser->SavedDiagContext);
+ else
+ NewDiag.print(0, OS);
+}
+
bool AsmParser::expandMacro(SmallString<256> &Buf, StringRef Body,
const std::vector<StringRef> &Parameters,
const std::vector<std::vector<AsmToken> > &A,
if (getLexer().isNot(AsmToken::EndOfStatement)) {
for (;;) {
StringRef Name;
+ SMLoc Loc = getTok().getLoc();
if (ParseIdentifier(Name))
- return TokError("expected identifier in directive");
+ return Error(Loc, "expected identifier in directive");
MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+ // Assembler local symbols don't make any sense here. Complain loudly.
+ if (Sym->isTemporary())
+ return Error(Loc, "non-local symbol required in directive");
+
getStreamer().EmitSymbolAttribute(Sym, Attr);
if (getLexer().is(AsmToken::EndOfStatement))
/// \brief Create an MCAsmParser instance.
-MCAsmParser *llvm::createMCAsmParser(const Target &T, SourceMgr &SM,
+MCAsmParser *llvm::createMCAsmParser(SourceMgr &SM,
MCContext &C, MCStreamer &Out,
const MCAsmInfo &MAI) {
- return new AsmParser(T, SM, C, Out, MAI);
+ return new AsmParser(SM, C, Out, MAI);
}
projects / oota-llvm.git / blobdiff