void LLLexer::HexToIntPair(const char *Buffer, const char *End,
uint64_t Pair[2]) {
Pair[0] = 0;
- for (int i=0; i<16; i++, Buffer++) {
- assert(Buffer != End);
- Pair[0] *= 16;
- Pair[0] += hexDigitValue(*Buffer);
+ if (End - Buffer >= 16) {
+ for (int i = 0; i < 16; i++, Buffer++) {
+ assert(Buffer != End);
+ Pair[0] *= 16;
+ Pair[0] += hexDigitValue(*Buffer);
+ }
}
Pair[1] = 0;
- for (int i=0; i<16 && Buffer != End; i++, Buffer++) {
+ for (int i = 0; i < 16 && Buffer != End; i++, Buffer++) {
Pair[1] *= 16;
Pair[1] += hexDigitValue(*Buffer);
}
// Lexer definition.
//===----------------------------------------------------------------------===//
-LLLexer::LLLexer(MemoryBuffer *StartBuf, SourceMgr &sm, SMDiagnostic &Err,
+LLLexer::LLLexer(StringRef StartBuf, SourceMgr &sm, SMDiagnostic &Err,
LLVMContext &C)
: CurBuf(StartBuf), ErrorInfo(Err), SM(sm), Context(C), APFloatVal(0.0) {
- CurPtr = CurBuf->getBufferStart();
-}
-
-std::string LLLexer::getFilename() const {
- return CurBuf->getBufferIdentifier();
+ CurPtr = CurBuf.begin();
}
int LLLexer::getNextChar() {
case 0:
// A nul character in the stream is either the end of the current buffer or
// a random nul in the file. Disambiguate that here.
- if (CurPtr-1 != CurBuf->getBufferEnd())
+ if (CurPtr-1 != CurBuf.end())
return 0; // Just whitespace.
// Otherwise, return end of file.
case ')': return lltok::rparen;
case ',': return lltok::comma;
case '*': return lltok::star;
- case '\\': return lltok::backslash;
}
}
/// GlobalVar @[-a-zA-Z$._][-a-zA-Z$._0-9]*
/// GlobalVarID @[0-9]+
lltok::Kind LLLexer::LexAt() {
- // Handle AtStringConstant: @\"[^\"]*\"
- if (CurPtr[0] == '"') {
- ++CurPtr;
-
- while (1) {
- int CurChar = getNextChar();
-
- if (CurChar == EOF) {
- Error("end of file in global variable name");
- return lltok::Error;
- }
- if (CurChar == '"') {
- StrVal.assign(TokStart+2, CurPtr-1);
- UnEscapeLexed(StrVal);
- if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
- Error("Null bytes are not allowed in names");
- return lltok::Error;
- }
- return lltok::GlobalVar;
- }
- }
- }
-
- // Handle GlobalVarName: @[-a-zA-Z$._][-a-zA-Z$._0-9]*
- if (ReadVarName())
- return lltok::GlobalVar;
-
- // Handle GlobalVarID: @[0-9]+
- if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
- for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
- /*empty*/;
-
- uint64_t Val = atoull(TokStart+1, CurPtr);
- if ((unsigned)Val != Val)
- Error("invalid value number (too large)!");
- UIntVal = unsigned(Val);
- return lltok::GlobalID;
- }
-
- return lltok::Error;
+ return LexVar(lltok::GlobalVar, lltok::GlobalID);
}
lltok::Kind LLLexer::LexDollar() {
return false;
}
-/// LexPercent - Lex all tokens that start with a % character:
-/// LocalVar ::= %\"[^\"]*\"
-/// LocalVar ::= %[-a-zA-Z$._][-a-zA-Z$._0-9]*
-/// LocalVarID ::= %[0-9]+
-lltok::Kind LLLexer::LexPercent() {
- // Handle LocalVarName: %\"[^\"]*\"
+lltok::Kind LLLexer::LexVar(lltok::Kind Var, lltok::Kind VarID) {
+ // Handle StringConstant: \"[^\"]*\"
if (CurPtr[0] == '"') {
++CurPtr;
- return ReadString(lltok::LocalVar);
+
+ while (1) {
+ int CurChar = getNextChar();
+
+ if (CurChar == EOF) {
+ Error("end of file in global variable name");
+ return lltok::Error;
+ }
+ if (CurChar == '"') {
+ StrVal.assign(TokStart+2, CurPtr-1);
+ UnEscapeLexed(StrVal);
+ if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
+ Error("Null bytes are not allowed in names");
+ return lltok::Error;
+ }
+ return Var;
+ }
+ }
}
- // Handle LocalVarName: %[-a-zA-Z$._][-a-zA-Z$._0-9]*
+ // Handle VarName: [-a-zA-Z$._][-a-zA-Z$._0-9]*
if (ReadVarName())
- return lltok::LocalVar;
+ return Var;
- // Handle LocalVarID: %[0-9]+
+ // Handle VarID: [0-9]+
if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
/*empty*/;
if ((unsigned)Val != Val)
Error("invalid value number (too large)!");
UIntVal = unsigned(Val);
- return lltok::LocalVarID;
+ return VarID;
}
-
return lltok::Error;
}
+/// LexPercent - Lex all tokens that start with a % character:
+/// LocalVar ::= %\"[^\"]*\"
+/// LocalVar ::= %[-a-zA-Z$._][-a-zA-Z$._0-9]*
+/// LocalVarID ::= %[0-9]+
+lltok::Kind LLLexer::LexPercent() {
+ return LexVar(lltok::LocalVar, lltok::LocalVarID);
+}
+
/// LexQuote - Lex all tokens that start with a " character:
/// QuoteLabel "[^"]+":
/// StringConstant "[^"]*"
if (CurPtr[0] == ':') {
++CurPtr;
- kind = lltok::LabelStr;
+ if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
+ Error("Null bytes are not allowed in names");
+ kind = lltok::Error;
+ } else {
+ kind = lltok::LabelStr;
+ }
}
return kind;
KEYWORD(inteldialect);
KEYWORD(gc);
KEYWORD(prefix);
+ KEYWORD(prologue);
KEYWORD(ccc);
KEYWORD(fastcc);
KEYWORD(x86_stdcallcc);
KEYWORD(x86_fastcallcc);
KEYWORD(x86_thiscallcc);
+ KEYWORD(x86_vectorcallcc);
KEYWORD(arm_apcscc);
KEYWORD(arm_aapcscc);
KEYWORD(arm_aapcs_vfpcc);
KEYWORD(anyregcc);
KEYWORD(preserve_mostcc);
KEYWORD(preserve_allcc);
+ KEYWORD(ghccc);
KEYWORD(cc);
KEYWORD(c);
KEYWORD(x);
KEYWORD(blockaddress);
+ // Metadata types.
+ KEYWORD(distinct);
+
+ // Use-list order directives.
+ KEYWORD(uselistorder);
+ KEYWORD(uselistorder_bb);
+
KEYWORD(personality);
KEYWORD(cleanup);
KEYWORD(catch);
INSTKEYWORD(landingpad, LandingPad);
#undef INSTKEYWORD
+#define DWKEYWORD(TYPE, TOKEN) \
+ if (Len >= strlen("DW_" #TYPE "_") && \
+ !memcmp(StartChar, "DW_" #TYPE "_", strlen("DW_" #TYPE "_"))) { \
+ StrVal.assign(StartChar, CurPtr); \
+ return lltok::TOKEN; \
+ }
+ DWKEYWORD(TAG, DwarfTag);
+ DWKEYWORD(ATE, DwarfAttEncoding);
+ DWKEYWORD(VIRTUALITY, DwarfVirtuality);
+ DWKEYWORD(LANG, DwarfLang);
+#undef DWKEYWORD
+
// Check for [us]0x[0-9A-Fa-f]+ which are Hexadecimal constant generated by
// the CFE to avoid forcing it to deal with 64-bit numbers.
if ((TokStart[0] == 'u' || TokStart[0] == 's') &&
isxdigit(static_cast<unsigned char>(TokStart[3]))) {
int len = CurPtr-TokStart-3;
uint32_t bits = len * 4;
- APInt Tmp(bits, StringRef(TokStart+3, len), 16);
+ StringRef HexStr(TokStart + 3, len);
+ if (!std::all_of(HexStr.begin(), HexStr.end(), isxdigit)) {
+ // Bad token, return it as an error.
+ CurPtr = TokStart+3;
+ return lltok::Error;
+ }
+ APInt Tmp(bits, HexStr, 16);
uint32_t activeBits = Tmp.getActiveBits();
if (activeBits > 0 && activeBits < bits)
Tmp = Tmp.trunc(activeBits);
projects / oota-llvm.git / blobdiff