//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
#include "LLLexer.h"
-#include "ParserInternals.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/AsmParser/Parser.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Instruction.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
-
-#include <list>
-#include "llvmAsmParser.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cctype>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
using namespace llvm;
+bool LLLexer::Error(LocTy ErrorLoc, const Twine &Msg) const {
+ ErrorInfo = SM.GetMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
+ return true;
+}
+
+void LLLexer::Warning(LocTy WarningLoc, const Twine &Msg) const {
+ SM.PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
+}
+
//===----------------------------------------------------------------------===//
// Helper functions.
//===----------------------------------------------------------------------===//
// long representation... this does not have to do input error checking,
// because we know that the input will be matched by a suitable regex...
//
-static uint64_t atoull(const char *Buffer, const char *End) {
+uint64_t LLLexer::atoull(const char *Buffer, const char *End) {
uint64_t Result = 0;
for (; Buffer != End; Buffer++) {
uint64_t OldRes = Result;
Result *= 10;
Result += *Buffer-'0';
if (Result < OldRes) { // Uh, oh, overflow detected!!!
- GenerateError("constant bigger than 64 bits detected!");
+ Error("constant bigger than 64 bits detected!");
return 0;
}
}
return Result;
}
-static uint64_t HexIntToVal(const char *Buffer, const char *End) {
+uint64_t LLLexer::HexIntToVal(const char *Buffer, const char *End) {
uint64_t Result = 0;
for (; Buffer != End; ++Buffer) {
uint64_t OldRes = Result;
Result *= 16;
- char C = *Buffer;
- if (C >= '0' && C <= '9')
- Result += C-'0';
- else if (C >= 'A' && C <= 'F')
- Result += C-'A'+10;
- else if (C >= 'a' && C <= 'f')
- Result += C-'a'+10;
-
+ Result += hexDigitValue(*Buffer);
+
if (Result < OldRes) { // Uh, oh, overflow detected!!!
- GenerateError("constant bigger than 64 bits detected!");
+ Error("constant bigger than 64 bits detected!");
return 0;
}
}
return Result;
}
-// HexToFP - Convert the ascii string in hexadecimal format to the floating
-// point representation of it.
-//
-static double HexToFP(const char *Buffer, const char *End) {
- return BitsToDouble(HexIntToVal(Buffer, End)); // Cast Hex constant to double
-}
-
-static void HexToIntPair(const char *Buffer, const char *End, uint64_t Pair[2]){
+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;
- char C = *Buffer;
- if (C >= '0' && C <= '9')
- Pair[0] += C-'0';
- else if (C >= 'A' && C <= 'F')
- Pair[0] += C-'A'+10;
- else if (C >= 'a' && C <= 'f')
- Pair[0] += C-'a'+10;
+ Pair[0] += hexDigitValue(*Buffer);
}
Pair[1] = 0;
for (int i=0; i<16 && Buffer != End; i++, Buffer++) {
Pair[1] *= 16;
- char C = *Buffer;
- if (C >= '0' && C <= '9')
- Pair[1] += C-'0';
- else if (C >= 'A' && C <= 'F')
- Pair[1] += C-'A'+10;
- else if (C >= 'a' && C <= 'f')
- Pair[1] += C-'a'+10;
- }
- if (*Buffer)
- GenerateError("constant bigger than 128 bits detected!");
+ Pair[1] += hexDigitValue(*Buffer);
+ }
+ if (Buffer != End)
+ Error("constant bigger than 128 bits detected!");
+}
+
+/// FP80HexToIntPair - translate an 80 bit FP80 number (20 hexits) into
+/// { low64, high16 } as usual for an APInt.
+void LLLexer::FP80HexToIntPair(const char *Buffer, const char *End,
+ uint64_t Pair[2]) {
+ Pair[1] = 0;
+ for (int i=0; i<4 && Buffer != End; i++, Buffer++) {
+ assert(Buffer != End);
+ Pair[1] *= 16;
+ Pair[1] += hexDigitValue(*Buffer);
+ }
+ Pair[0] = 0;
+ for (int i=0; i<16; i++, Buffer++) {
+ Pair[0] *= 16;
+ Pair[0] += hexDigitValue(*Buffer);
+ }
+ if (Buffer != End)
+ Error("constant bigger than 128 bits detected!");
}
// UnEscapeLexed - Run through the specified buffer and change \xx codes to the
// appropriate character.
static void UnEscapeLexed(std::string &Str) {
if (Str.empty()) return;
-
+
char *Buffer = &Str[0], *EndBuffer = Buffer+Str.size();
char *BOut = Buffer;
for (char *BIn = Buffer; BIn != EndBuffer; ) {
if (BIn < EndBuffer-1 && BIn[1] == '\\') {
*BOut++ = '\\'; // Two \ becomes one
BIn += 2;
- } else if (BIn < EndBuffer-2 && isxdigit(BIn[1]) && isxdigit(BIn[2])) {
- char Tmp = BIn[3]; BIn[3] = 0; // Terminate string
- *BOut = (char)strtol(BIn+1, 0, 16); // Convert to number
- BIn[3] = Tmp; // Restore character
+ } else if (BIn < EndBuffer-2 &&
+ isxdigit(static_cast<unsigned char>(BIn[1])) &&
+ isxdigit(static_cast<unsigned char>(BIn[2]))) {
+ *BOut = hexDigitValue(BIn[1]) * 16 + hexDigitValue(BIn[2]);
BIn += 3; // Skip over handled chars
++BOut;
} else {
/// isLabelChar - Return true for [-a-zA-Z$._0-9].
static bool isLabelChar(char C) {
- return isalnum(C) || C == '-' || C == '$' || C == '.' || C == '_';
+ return isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
+ C == '.' || C == '_';
}
static const char *isLabelTail(const char *CurPtr) {
while (1) {
if (CurPtr[0] == ':') return CurPtr+1;
- if (!isLabelChar(CurPtr[0])) return 0;
+ if (!isLabelChar(CurPtr[0])) return nullptr;
++CurPtr;
}
}
// Lexer definition.
//===----------------------------------------------------------------------===//
-// FIXME: REMOVE THIS.
-#define YYEOF 0
-#define YYERROR -2
-
-LLLexer::LLLexer(MemoryBuffer *StartBuf) : CurLineNo(1), CurBuf(StartBuf) {
+LLLexer::LLLexer(MemoryBuffer *StartBuf, SourceMgr &sm, SMDiagnostic &Err,
+ LLVMContext &C)
+ : CurBuf(StartBuf), ErrorInfo(Err), SM(sm), Context(C), APFloatVal(0.0) {
CurPtr = CurBuf->getBufferStart();
}
// a random nul in the file. Disambiguate that here.
if (CurPtr-1 != CurBuf->getBufferEnd())
return 0; // Just whitespace.
-
+
// Otherwise, return end of file.
- --CurPtr; // Another call to lex will return EOF again.
+ --CurPtr; // Another call to lex will return EOF again.
return EOF;
- case '\n':
- case '\r':
- // Handle the newline character by ignoring it and incrementing the line
- // count. However, be careful about 'dos style' files with \n\r in them.
- // Only treat a \n\r or \r\n as a single line.
- if ((*CurPtr == '\n' || (*CurPtr == '\r')) &&
- *CurPtr != CurChar)
- ++CurPtr; // Eat the two char newline sequence.
-
- ++CurLineNo;
- return '\n';
- }
+ }
}
-int LLLexer::LexToken() {
+lltok::Kind LLLexer::LexToken() {
TokStart = CurPtr;
-
+
int CurChar = getNextChar();
-
switch (CurChar) {
default:
// Handle letters: [a-zA-Z_]
- if (isalpha(CurChar) || CurChar == '_')
+ if (isalpha(static_cast<unsigned char>(CurChar)) || CurChar == '_')
return LexIdentifier();
-
- return CurChar;
- case EOF: return YYEOF;
+
+ return lltok::Error;
+ case EOF: return lltok::Eof;
case 0:
case ' ':
case '\t':
case '.':
if (const char *Ptr = isLabelTail(CurPtr)) {
CurPtr = Ptr;
- llvmAsmlval.StrVal = new std::string(TokStart, CurPtr-1);
- return LABELSTR;
+ StrVal.assign(TokStart, CurPtr-1);
+ return lltok::LabelStr;
}
if (CurPtr[0] == '.' && CurPtr[1] == '.') {
CurPtr += 2;
- return DOTDOTDOT;
+ return lltok::dotdotdot;
}
- return '.';
+ return lltok::Error;
case '$':
if (const char *Ptr = isLabelTail(CurPtr)) {
CurPtr = Ptr;
- llvmAsmlval.StrVal = new std::string(TokStart, CurPtr-1);
- return LABELSTR;
+ StrVal.assign(TokStart, CurPtr-1);
+ return lltok::LabelStr;
}
- return '$';
+ return lltok::Error;
case ';':
SkipLineComment();
return LexToken();
+ case '!': return LexExclaim();
+ case '#': return LexHash();
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
- case '-':
+ case '-':
return LexDigitOrNegative();
+ case '=': return lltok::equal;
+ case '[': return lltok::lsquare;
+ case ']': return lltok::rsquare;
+ case '{': return lltok::lbrace;
+ case '}': return lltok::rbrace;
+ case '<': return lltok::less;
+ case '>': return lltok::greater;
+ case '(': return lltok::lparen;
+ case ')': return lltok::rparen;
+ case ',': return lltok::comma;
+ case '*': return lltok::star;
+ case '\\': return lltok::backslash;
}
}
}
/// LexAt - Lex all tokens that start with an @ character:
-/// AtStringConstant @\"[^\"]*\"
-/// GlobalVarName @[-a-zA-Z$._][-a-zA-Z$._0-9]*
-/// GlobalVarID @[0-9]+
-int LLLexer::LexAt() {
+/// GlobalVar @\"[^\"]*\"
+/// GlobalVar @[-a-zA-Z$._][-a-zA-Z$._0-9]*
+/// GlobalVarID @[0-9]+
+lltok::Kind LLLexer::LexAt() {
// Handle AtStringConstant: @\"[^\"]*\"
if (CurPtr[0] == '"') {
++CurPtr;
-
+
while (1) {
int CurChar = getNextChar();
-
- if (CurChar == EOF) {
- GenerateError("End of file in global variable name");
- return YYERROR;
+
+ if (CurChar == EOF) {
+ Error("end of file in global variable name");
+ return lltok::Error;
}
if (CurChar == '"') {
- llvmAsmlval.StrVal = new std::string(TokStart+2, CurPtr-1);
- UnEscapeLexed(*llvmAsmlval.StrVal);
- return ATSTRINGCONSTANT;
+ StrVal.assign(TokStart+2, CurPtr-1);
+ UnEscapeLexed(StrVal);
+ if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
+ Error("Null bytes are not allowed in names");
+ return lltok::Error;
+ }
+ return lltok::GlobalVar;
}
}
}
-
+
// Handle GlobalVarName: @[-a-zA-Z$._][-a-zA-Z$._0-9]*
- if (isalpha(CurPtr[0]) || CurPtr[0] == '-' || CurPtr[0] == '$' ||
- CurPtr[0] == '.' || CurPtr[0] == '_') {
- ++CurPtr;
- while (isalnum(CurPtr[0]) || CurPtr[0] == '-' || CurPtr[0] == '$' ||
- CurPtr[0] == '.' || CurPtr[0] == '_')
- ++CurPtr;
+ if (ReadVarName())
+ return lltok::GlobalVar;
- llvmAsmlval.StrVal = new std::string(TokStart+1, CurPtr); // Skip @
- return GLOBALVAR;
- }
-
// Handle GlobalVarID: @[0-9]+
- if (isdigit(CurPtr[0])) {
- for (++CurPtr; isdigit(CurPtr[0]); ++CurPtr);
-
+ if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
+ for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
+ /*empty*/;
+
uint64_t Val = atoull(TokStart+1, CurPtr);
if ((unsigned)Val != Val)
- GenerateError("Invalid value number (too large)!");
- llvmAsmlval.UIntVal = unsigned(Val);
- return GLOBALVAL_ID;
+ Error("invalid value number (too large)!");
+ UIntVal = unsigned(Val);
+ return lltok::GlobalID;
}
-
- return '@';
+
+ return lltok::Error;
}
+/// ReadString - Read a string until the closing quote.
+lltok::Kind LLLexer::ReadString(lltok::Kind kind) {
+ const char *Start = CurPtr;
+ while (1) {
+ int CurChar = getNextChar();
-/// LexPercent - Lex all tokens that start with a % character:
-/// PctStringConstant %\"[^\"]*\"
-/// LocalVarName %[-a-zA-Z$._][-a-zA-Z$._0-9]*
-/// LocalVarID %[0-9]+
-int LLLexer::LexPercent() {
- // Handle PctStringConstant: %\"[^\"]*\"
- if (CurPtr[0] == '"') {
- ++CurPtr;
-
- while (1) {
- int CurChar = getNextChar();
-
- if (CurChar == EOF) {
- GenerateError("End of file in local variable name");
- return YYERROR;
- }
- if (CurChar == '"') {
- llvmAsmlval.StrVal = new std::string(TokStart+2, CurPtr-1);
- UnEscapeLexed(*llvmAsmlval.StrVal);
- return PCTSTRINGCONSTANT;
- }
+ if (CurChar == EOF) {
+ Error("end of file in string constant");
+ return lltok::Error;
+ }
+ if (CurChar == '"') {
+ StrVal.assign(Start, CurPtr-1);
+ UnEscapeLexed(StrVal);
+ return kind;
}
}
-
- // Handle LocalVarName: %[-a-zA-Z$._][-a-zA-Z$._0-9]*
- if (isalpha(CurPtr[0]) || CurPtr[0] == '-' || CurPtr[0] == '$' ||
+}
+
+/// ReadVarName - Read the rest of a token containing a variable name.
+bool LLLexer::ReadVarName() {
+ const char *NameStart = CurPtr;
+ if (isalpha(static_cast<unsigned char>(CurPtr[0])) ||
+ CurPtr[0] == '-' || CurPtr[0] == '$' ||
CurPtr[0] == '.' || CurPtr[0] == '_') {
++CurPtr;
- while (isalnum(CurPtr[0]) || CurPtr[0] == '-' || CurPtr[0] == '$' ||
+ while (isalnum(static_cast<unsigned char>(CurPtr[0])) ||
+ CurPtr[0] == '-' || CurPtr[0] == '$' ||
CurPtr[0] == '.' || CurPtr[0] == '_')
++CurPtr;
-
- llvmAsmlval.StrVal = new std::string(TokStart+1, CurPtr); // Skip %
- return LOCALVAR;
+
+ StrVal.assign(NameStart, CurPtr);
+ return true;
+ }
+ return false;
+}
+
+/// LexPercent - Lex all tokens that start with a % character:
+/// LocalVar ::= %\"[^\"]*\"
+/// LocalVar ::= %[-a-zA-Z$._][-a-zA-Z$._0-9]*
+/// LocalVarID ::= %[0-9]+
+lltok::Kind LLLexer::LexPercent() {
+ // Handle LocalVarName: %\"[^\"]*\"
+ if (CurPtr[0] == '"') {
+ ++CurPtr;
+ return ReadString(lltok::LocalVar);
}
-
+
+ // Handle LocalVarName: %[-a-zA-Z$._][-a-zA-Z$._0-9]*
+ if (ReadVarName())
+ return lltok::LocalVar;
+
// Handle LocalVarID: %[0-9]+
- if (isdigit(CurPtr[0])) {
- for (++CurPtr; isdigit(CurPtr[0]); ++CurPtr);
-
+ if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
+ for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
+ /*empty*/;
+
uint64_t Val = atoull(TokStart+1, CurPtr);
if ((unsigned)Val != Val)
- GenerateError("Invalid value number (too large)!");
- llvmAsmlval.UIntVal = unsigned(Val);
- return LOCALVAL_ID;
+ Error("invalid value number (too large)!");
+ UIntVal = unsigned(Val);
+ return lltok::LocalVarID;
}
-
- return '%';
+
+ return lltok::Error;
}
/// LexQuote - Lex all tokens that start with a " character:
/// QuoteLabel "[^"]+":
/// StringConstant "[^"]*"
-int LLLexer::LexQuote() {
- while (1) {
- int CurChar = getNextChar();
-
- if (CurChar == EOF) {
- GenerateError("End of file in quoted string");
- return YYERROR;
- }
-
- if (CurChar != '"') continue;
+lltok::Kind LLLexer::LexQuote() {
+ lltok::Kind kind = ReadString(lltok::StringConstant);
+ if (kind == lltok::Error || kind == lltok::Eof)
+ return kind;
- if (CurPtr[0] != ':') {
- llvmAsmlval.StrVal = new std::string(TokStart+1, CurPtr-1);
- UnEscapeLexed(*llvmAsmlval.StrVal);
- return STRINGCONSTANT;
- }
-
+ if (CurPtr[0] == ':') {
++CurPtr;
- llvmAsmlval.StrVal = new std::string(TokStart+1, CurPtr-2);
- UnEscapeLexed(*llvmAsmlval.StrVal);
- return LABELSTR;
+ kind = lltok::LabelStr;
}
+
+ return kind;
}
-static bool JustWhitespaceNewLine(const char *&Ptr) {
- const char *ThisPtr = Ptr;
- while (*ThisPtr == ' ' || *ThisPtr == '\t')
- ++ThisPtr;
- if (*ThisPtr == '\n' || *ThisPtr == '\r') {
- Ptr = ThisPtr;
- return true;
+/// LexExclaim:
+/// !foo
+/// !
+lltok::Kind LLLexer::LexExclaim() {
+ // Lex a metadata name as a MetadataVar.
+ if (isalpha(static_cast<unsigned char>(CurPtr[0])) ||
+ CurPtr[0] == '-' || CurPtr[0] == '$' ||
+ CurPtr[0] == '.' || CurPtr[0] == '_' || CurPtr[0] == '\\') {
+ ++CurPtr;
+ while (isalnum(static_cast<unsigned char>(CurPtr[0])) ||
+ CurPtr[0] == '-' || CurPtr[0] == '$' ||
+ CurPtr[0] == '.' || CurPtr[0] == '_' || CurPtr[0] == '\\')
+ ++CurPtr;
+
+ StrVal.assign(TokStart+1, CurPtr); // Skip !
+ UnEscapeLexed(StrVal);
+ return lltok::MetadataVar;
}
- return false;
+ return lltok::exclaim;
}
+/// LexHash - Lex all tokens that start with a # character:
+/// AttrGrpID ::= #[0-9]+
+lltok::Kind LLLexer::LexHash() {
+ // Handle AttrGrpID: #[0-9]+
+ if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
+ for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
+ /*empty*/;
+
+ uint64_t Val = atoull(TokStart+1, CurPtr);
+ if ((unsigned)Val != Val)
+ Error("invalid value number (too large)!");
+ UIntVal = unsigned(Val);
+ return lltok::AttrGrpID;
+ }
+
+ return lltok::Error;
+}
/// LexIdentifier: Handle several related productions:
/// Label [-a-zA-Z$._0-9]+:
/// IntegerType i[0-9]+
/// Keyword sdiv, float, ...
/// HexIntConstant [us]0x[0-9A-Fa-f]+
-int LLLexer::LexIdentifier() {
+lltok::Kind LLLexer::LexIdentifier() {
const char *StartChar = CurPtr;
- const char *IntEnd = CurPtr[-1] == 'i' ? 0 : StartChar;
- const char *KeywordEnd = 0;
-
+ const char *IntEnd = CurPtr[-1] == 'i' ? nullptr : StartChar;
+ const char *KeywordEnd = nullptr;
+
for (; isLabelChar(*CurPtr); ++CurPtr) {
// If we decide this is an integer, remember the end of the sequence.
- if (!IntEnd && !isdigit(*CurPtr)) IntEnd = CurPtr;
- if (!KeywordEnd && !isalnum(*CurPtr) && *CurPtr != '_') KeywordEnd = CurPtr;
+ if (!IntEnd && !isdigit(static_cast<unsigned char>(*CurPtr)))
+ IntEnd = CurPtr;
+ if (!KeywordEnd && !isalnum(static_cast<unsigned char>(*CurPtr)) &&
+ *CurPtr != '_')
+ KeywordEnd = CurPtr;
}
-
+
// If we stopped due to a colon, this really is a label.
if (*CurPtr == ':') {
- llvmAsmlval.StrVal = new std::string(StartChar-1, CurPtr++);
- return LABELSTR;
+ StrVal.assign(StartChar-1, CurPtr++);
+ return lltok::LabelStr;
}
-
+
// Otherwise, this wasn't a label. If this was valid as an integer type,
// return it.
- if (IntEnd == 0) IntEnd = CurPtr;
+ if (!IntEnd) IntEnd = CurPtr;
if (IntEnd != StartChar) {
CurPtr = IntEnd;
uint64_t NumBits = atoull(StartChar, CurPtr);
- if (NumBits < IntegerType::MIN_INT_BITS ||
+ if (NumBits < IntegerType::MIN_INT_BITS ||
NumBits > IntegerType::MAX_INT_BITS) {
- GenerateError("Bitwidth for integer type out of range!");
- return YYERROR;
+ Error("bitwidth for integer type out of range!");
+ return lltok::Error;
}
- const Type* Ty = IntegerType::get(NumBits);
- llvmAsmlval.PrimType = Ty;
- return INTTYPE;
+ TyVal = IntegerType::get(Context, NumBits);
+ return lltok::Type;
}
-
+
// Otherwise, this was a letter sequence. See which keyword this is.
- if (KeywordEnd == 0) KeywordEnd = CurPtr;
+ if (!KeywordEnd) KeywordEnd = CurPtr;
CurPtr = KeywordEnd;
--StartChar;
unsigned Len = CurPtr-StartChar;
-#define KEYWORD(STR, TOK) \
- if (Len == strlen(STR) && !memcmp(StartChar, STR, strlen(STR))) return TOK;
-
- KEYWORD("begin", BEGINTOK);
- KEYWORD("end", ENDTOK);
- KEYWORD("true", TRUETOK);
- KEYWORD("false", FALSETOK);
- KEYWORD("declare", DECLARE);
- KEYWORD("define", DEFINE);
- KEYWORD("global", GLOBAL);
- KEYWORD("constant", CONSTANT);
-
- KEYWORD("internal", INTERNAL);
- KEYWORD("linkonce", LINKONCE);
- KEYWORD("weak", WEAK);
- KEYWORD("appending", APPENDING);
- KEYWORD("dllimport", DLLIMPORT);
- KEYWORD("dllexport", DLLEXPORT);
- KEYWORD("hidden", HIDDEN);
- KEYWORD("protected", PROTECTED);
- KEYWORD("extern_weak", EXTERN_WEAK);
- KEYWORD("external", EXTERNAL);
- KEYWORD("thread_local", THREAD_LOCAL);
- KEYWORD("zeroinitializer", ZEROINITIALIZER);
- KEYWORD("undef", UNDEF);
- KEYWORD("null", NULL_TOK);
- KEYWORD("to", TO);
- KEYWORD("tail", TAIL);
- KEYWORD("target", TARGET);
- KEYWORD("triple", TRIPLE);
- KEYWORD("deplibs", DEPLIBS);
- KEYWORD("datalayout", DATALAYOUT);
- KEYWORD("volatile", VOLATILE);
- KEYWORD("align", ALIGN);
- KEYWORD("section", SECTION);
- KEYWORD("alias", ALIAS);
- KEYWORD("module", MODULE);
- KEYWORD("asm", ASM_TOK);
- KEYWORD("sideeffect", SIDEEFFECT);
-
- KEYWORD("cc", CC_TOK);
- KEYWORD("ccc", CCC_TOK);
- KEYWORD("fastcc", FASTCC_TOK);
- KEYWORD("coldcc", COLDCC_TOK);
- KEYWORD("x86_stdcallcc", X86_STDCALLCC_TOK);
- KEYWORD("x86_fastcallcc", X86_FASTCALLCC_TOK);
-
- KEYWORD("signext", SIGNEXT);
- KEYWORD("zeroext", ZEROEXT);
- KEYWORD("inreg", INREG);
- KEYWORD("sret", SRET);
- KEYWORD("nounwind", NOUNWIND);
- KEYWORD("noreturn", NORETURN);
- KEYWORD("noalias", NOALIAS);
- KEYWORD("byval", BYVAL);
- KEYWORD("nest", NEST);
- KEYWORD("pure", PURE);
- KEYWORD("const", CONST);
-
- KEYWORD("type", TYPE);
- KEYWORD("opaque", OPAQUE);
-
- KEYWORD("eq" , EQ);
- KEYWORD("ne" , NE);
- KEYWORD("slt", SLT);
- KEYWORD("sgt", SGT);
- KEYWORD("sle", SLE);
- KEYWORD("sge", SGE);
- KEYWORD("ult", ULT);
- KEYWORD("ugt", UGT);
- KEYWORD("ule", ULE);
- KEYWORD("uge", UGE);
- KEYWORD("oeq", OEQ);
- KEYWORD("one", ONE);
- KEYWORD("olt", OLT);
- KEYWORD("ogt", OGT);
- KEYWORD("ole", OLE);
- KEYWORD("oge", OGE);
- KEYWORD("ord", ORD);
- KEYWORD("uno", UNO);
- KEYWORD("ueq", UEQ);
- KEYWORD("une", UNE);
+#define KEYWORD(STR) \
+ do { \
+ if (Len == strlen(#STR) && !memcmp(StartChar, #STR, strlen(#STR))) \
+ return lltok::kw_##STR; \
+ } while (0)
+
+ KEYWORD(true); KEYWORD(false);
+ KEYWORD(declare); KEYWORD(define);
+ KEYWORD(global); KEYWORD(constant);
+
+ KEYWORD(private);
+ KEYWORD(internal);
+ KEYWORD(linker_private); // NOTE: deprecated, for parser compatibility
+ KEYWORD(linker_private_weak); // NOTE: deprecated, for parser compatibility
+ KEYWORD(available_externally);
+ KEYWORD(linkonce);
+ KEYWORD(linkonce_odr);
+ KEYWORD(weak);
+ KEYWORD(weak_odr);
+ KEYWORD(appending);
+ KEYWORD(dllimport);
+ KEYWORD(dllexport);
+ KEYWORD(common);
+ KEYWORD(default);
+ KEYWORD(hidden);
+ KEYWORD(protected);
+ KEYWORD(unnamed_addr);
+ KEYWORD(externally_initialized);
+ KEYWORD(extern_weak);
+ KEYWORD(external);
+ KEYWORD(thread_local);
+ KEYWORD(localdynamic);
+ KEYWORD(initialexec);
+ KEYWORD(localexec);
+ KEYWORD(zeroinitializer);
+ KEYWORD(undef);
+ KEYWORD(null);
+ KEYWORD(to);
+ KEYWORD(tail);
+ KEYWORD(musttail);
+ KEYWORD(target);
+ KEYWORD(triple);
+ KEYWORD(unwind);
+ KEYWORD(deplibs); // FIXME: Remove in 4.0.
+ KEYWORD(datalayout);
+ KEYWORD(volatile);
+ KEYWORD(atomic);
+ KEYWORD(unordered);
+ KEYWORD(monotonic);
+ KEYWORD(acquire);
+ KEYWORD(release);
+ KEYWORD(acq_rel);
+ KEYWORD(seq_cst);
+ KEYWORD(singlethread);
+
+ KEYWORD(nnan);
+ KEYWORD(ninf);
+ KEYWORD(nsz);
+ KEYWORD(arcp);
+ KEYWORD(fast);
+ KEYWORD(nuw);
+ KEYWORD(nsw);
+ KEYWORD(exact);
+ KEYWORD(inbounds);
+ KEYWORD(align);
+ KEYWORD(addrspace);
+ KEYWORD(section);
+ KEYWORD(alias);
+ KEYWORD(module);
+ KEYWORD(asm);
+ KEYWORD(sideeffect);
+ KEYWORD(alignstack);
+ KEYWORD(inteldialect);
+ KEYWORD(gc);
+ KEYWORD(prefix);
+
+ KEYWORD(ccc);
+ KEYWORD(fastcc);
+ KEYWORD(coldcc);
+ KEYWORD(x86_stdcallcc);
+ KEYWORD(x86_fastcallcc);
+ KEYWORD(x86_thiscallcc);
+ KEYWORD(arm_apcscc);
+ KEYWORD(arm_aapcscc);
+ KEYWORD(arm_aapcs_vfpcc);
+ KEYWORD(msp430_intrcc);
+ KEYWORD(ptx_kernel);
+ KEYWORD(ptx_device);
+ KEYWORD(spir_kernel);
+ KEYWORD(spir_func);
+ KEYWORD(intel_ocl_bicc);
+ KEYWORD(x86_64_sysvcc);
+ KEYWORD(x86_64_win64cc);
+ KEYWORD(webkit_jscc);
+ KEYWORD(anyregcc);
+ KEYWORD(preserve_mostcc);
+ KEYWORD(preserve_allcc);
+
+ KEYWORD(cc);
+ KEYWORD(c);
+
+ KEYWORD(attributes);
+
+ KEYWORD(alwaysinline);
+ KEYWORD(builtin);
+ KEYWORD(byval);
+ KEYWORD(inalloca);
+ KEYWORD(cold);
+ KEYWORD(inlinehint);
+ KEYWORD(inreg);
+ KEYWORD(jumptable);
+ KEYWORD(minsize);
+ KEYWORD(naked);
+ KEYWORD(nest);
+ KEYWORD(noalias);
+ KEYWORD(nobuiltin);
+ KEYWORD(nocapture);
+ KEYWORD(noduplicate);
+ KEYWORD(noimplicitfloat);
+ KEYWORD(noinline);
+ KEYWORD(nonlazybind);
+ KEYWORD(nonnull);
+ KEYWORD(noredzone);
+ KEYWORD(noreturn);
+ KEYWORD(nounwind);
+ KEYWORD(optnone);
+ KEYWORD(optsize);
+ KEYWORD(readnone);
+ KEYWORD(readonly);
+ KEYWORD(returned);
+ KEYWORD(returns_twice);
+ KEYWORD(signext);
+ KEYWORD(sret);
+ KEYWORD(ssp);
+ KEYWORD(sspreq);
+ KEYWORD(sspstrong);
+ KEYWORD(sanitize_address);
+ KEYWORD(sanitize_thread);
+ KEYWORD(sanitize_memory);
+ KEYWORD(uwtable);
+ KEYWORD(zeroext);
+
+ KEYWORD(type);
+ KEYWORD(opaque);
+
+ KEYWORD(eq); KEYWORD(ne); KEYWORD(slt); KEYWORD(sgt); KEYWORD(sle);
+ KEYWORD(sge); KEYWORD(ult); KEYWORD(ugt); KEYWORD(ule); KEYWORD(uge);
+ KEYWORD(oeq); KEYWORD(one); KEYWORD(olt); KEYWORD(ogt); KEYWORD(ole);
+ KEYWORD(oge); KEYWORD(ord); KEYWORD(uno); KEYWORD(ueq); KEYWORD(une);
+
+ KEYWORD(xchg); KEYWORD(nand); KEYWORD(max); KEYWORD(min); KEYWORD(umax);
+ KEYWORD(umin);
+
+ KEYWORD(x);
+ KEYWORD(blockaddress);
+
+ KEYWORD(personality);
+ KEYWORD(cleanup);
+ KEYWORD(catch);
+ KEYWORD(filter);
#undef KEYWORD
// Keywords for types.
-#define TYPEKEYWORD(STR, LLVMTY, TOK) \
+#define TYPEKEYWORD(STR, LLVMTY) \
if (Len == strlen(STR) && !memcmp(StartChar, STR, strlen(STR))) { \
- llvmAsmlval.PrimType = LLVMTY; return TOK; }
- TYPEKEYWORD("void", Type::VoidTy, VOID);
- TYPEKEYWORD("float", Type::FloatTy, FLOAT);
- TYPEKEYWORD("double", Type::DoubleTy, DOUBLE);
- TYPEKEYWORD("x86_fp80", Type::X86_FP80Ty, X86_FP80);
- TYPEKEYWORD("fp128", Type::FP128Ty, FP128);
- TYPEKEYWORD("ppc_fp128", Type::PPC_FP128Ty, PPC_FP128);
- TYPEKEYWORD("label", Type::LabelTy, LABEL);
+ TyVal = LLVMTY; return lltok::Type; }
+ TYPEKEYWORD("void", Type::getVoidTy(Context));
+ TYPEKEYWORD("half", Type::getHalfTy(Context));
+ TYPEKEYWORD("float", Type::getFloatTy(Context));
+ TYPEKEYWORD("double", Type::getDoubleTy(Context));
+ TYPEKEYWORD("x86_fp80", Type::getX86_FP80Ty(Context));
+ TYPEKEYWORD("fp128", Type::getFP128Ty(Context));
+ TYPEKEYWORD("ppc_fp128", Type::getPPC_FP128Ty(Context));
+ TYPEKEYWORD("label", Type::getLabelTy(Context));
+ TYPEKEYWORD("metadata", Type::getMetadataTy(Context));
+ TYPEKEYWORD("x86_mmx", Type::getX86_MMXTy(Context));
#undef TYPEKEYWORD
- // Handle special forms for autoupgrading. Drop these in LLVM 3.0. This is
- // to avoid conflicting with the sext/zext instructions, below.
- if (Len == 4 && !memcmp(StartChar, "sext", 4)) {
- // Scan CurPtr ahead, seeing if there is just whitespace before the newline.
- if (JustWhitespaceNewLine(CurPtr))
- return SIGNEXT;
- } else if (Len == 4 && !memcmp(StartChar, "zext", 4)) {
- // Scan CurPtr ahead, seeing if there is just whitespace before the newline.
- if (JustWhitespaceNewLine(CurPtr))
- return ZEROEXT;
- }
-
// Keywords for instructions.
-#define INSTKEYWORD(STR, type, Enum, TOK) \
- if (Len == strlen(STR) && !memcmp(StartChar, STR, strlen(STR))) { \
- llvmAsmlval.type = Instruction::Enum; return TOK; }
-
- INSTKEYWORD("add", BinaryOpVal, Add, ADD);
- INSTKEYWORD("sub", BinaryOpVal, Sub, SUB);
- INSTKEYWORD("mul", BinaryOpVal, Mul, MUL);
- INSTKEYWORD("udiv", BinaryOpVal, UDiv, UDIV);
- INSTKEYWORD("sdiv", BinaryOpVal, SDiv, SDIV);
- INSTKEYWORD("fdiv", BinaryOpVal, FDiv, FDIV);
- INSTKEYWORD("urem", BinaryOpVal, URem, UREM);
- INSTKEYWORD("srem", BinaryOpVal, SRem, SREM);
- INSTKEYWORD("frem", BinaryOpVal, FRem, FREM);
- INSTKEYWORD("shl", BinaryOpVal, Shl, SHL);
- INSTKEYWORD("lshr", BinaryOpVal, LShr, LSHR);
- INSTKEYWORD("ashr", BinaryOpVal, AShr, ASHR);
- INSTKEYWORD("and", BinaryOpVal, And, AND);
- INSTKEYWORD("or", BinaryOpVal, Or , OR );
- INSTKEYWORD("xor", BinaryOpVal, Xor, XOR);
- INSTKEYWORD("icmp", OtherOpVal, ICmp, ICMP);
- INSTKEYWORD("fcmp", OtherOpVal, FCmp, FCMP);
-
- INSTKEYWORD("phi", OtherOpVal, PHI, PHI_TOK);
- INSTKEYWORD("call", OtherOpVal, Call, CALL);
- INSTKEYWORD("trunc", CastOpVal, Trunc, TRUNC);
- INSTKEYWORD("zext", CastOpVal, ZExt, ZEXT);
- INSTKEYWORD("sext", CastOpVal, SExt, SEXT);
- INSTKEYWORD("fptrunc", CastOpVal, FPTrunc, FPTRUNC);
- INSTKEYWORD("fpext", CastOpVal, FPExt, FPEXT);
- INSTKEYWORD("uitofp", CastOpVal, UIToFP, UITOFP);
- INSTKEYWORD("sitofp", CastOpVal, SIToFP, SITOFP);
- INSTKEYWORD("fptoui", CastOpVal, FPToUI, FPTOUI);
- INSTKEYWORD("fptosi", CastOpVal, FPToSI, FPTOSI);
- INSTKEYWORD("inttoptr", CastOpVal, IntToPtr, INTTOPTR);
- INSTKEYWORD("ptrtoint", CastOpVal, PtrToInt, PTRTOINT);
- INSTKEYWORD("bitcast", CastOpVal, BitCast, BITCAST);
- INSTKEYWORD("select", OtherOpVal, Select, SELECT);
- INSTKEYWORD("va_arg", OtherOpVal, VAArg , VAARG);
- INSTKEYWORD("ret", TermOpVal, Ret, RET);
- INSTKEYWORD("br", TermOpVal, Br, BR);
- INSTKEYWORD("switch", TermOpVal, Switch, SWITCH);
- INSTKEYWORD("invoke", TermOpVal, Invoke, INVOKE);
- INSTKEYWORD("unwind", TermOpVal, Unwind, UNWIND);
- INSTKEYWORD("unreachable", TermOpVal, Unreachable, UNREACHABLE);
-
- INSTKEYWORD("malloc", MemOpVal, Malloc, MALLOC);
- INSTKEYWORD("alloca", MemOpVal, Alloca, ALLOCA);
- INSTKEYWORD("free", MemOpVal, Free, FREE);
- INSTKEYWORD("load", MemOpVal, Load, LOAD);
- INSTKEYWORD("store", MemOpVal, Store, STORE);
- INSTKEYWORD("getelementptr", MemOpVal, GetElementPtr, GETELEMENTPTR);
-
- INSTKEYWORD("extractelement", OtherOpVal, ExtractElement, EXTRACTELEMENT);
- INSTKEYWORD("insertelement", OtherOpVal, InsertElement, INSERTELEMENT);
- INSTKEYWORD("shufflevector", OtherOpVal, ShuffleVector, SHUFFLEVECTOR);
-#undef INSTKEYWORD
-
+#define INSTKEYWORD(STR, Enum) \
+ if (Len == strlen(#STR) && !memcmp(StartChar, #STR, strlen(#STR))) { \
+ UIntVal = Instruction::Enum; return lltok::kw_##STR; }
+
+ INSTKEYWORD(add, Add); INSTKEYWORD(fadd, FAdd);
+ INSTKEYWORD(sub, Sub); INSTKEYWORD(fsub, FSub);
+ INSTKEYWORD(mul, Mul); INSTKEYWORD(fmul, FMul);
+ INSTKEYWORD(udiv, UDiv); INSTKEYWORD(sdiv, SDiv); INSTKEYWORD(fdiv, FDiv);
+ INSTKEYWORD(urem, URem); INSTKEYWORD(srem, SRem); INSTKEYWORD(frem, FRem);
+ INSTKEYWORD(shl, Shl); INSTKEYWORD(lshr, LShr); INSTKEYWORD(ashr, AShr);
+ INSTKEYWORD(and, And); INSTKEYWORD(or, Or); INSTKEYWORD(xor, Xor);
+ INSTKEYWORD(icmp, ICmp); INSTKEYWORD(fcmp, FCmp);
+
+ INSTKEYWORD(phi, PHI);
+ INSTKEYWORD(call, Call);
+ INSTKEYWORD(trunc, Trunc);
+ INSTKEYWORD(zext, ZExt);
+ INSTKEYWORD(sext, SExt);
+ INSTKEYWORD(fptrunc, FPTrunc);
+ INSTKEYWORD(fpext, FPExt);
+ INSTKEYWORD(uitofp, UIToFP);
+ INSTKEYWORD(sitofp, SIToFP);
+ INSTKEYWORD(fptoui, FPToUI);
+ INSTKEYWORD(fptosi, FPToSI);
+ INSTKEYWORD(inttoptr, IntToPtr);
+ INSTKEYWORD(ptrtoint, PtrToInt);
+ INSTKEYWORD(bitcast, BitCast);
+ INSTKEYWORD(addrspacecast, AddrSpaceCast);
+ INSTKEYWORD(select, Select);
+ INSTKEYWORD(va_arg, VAArg);
+ INSTKEYWORD(ret, Ret);
+ INSTKEYWORD(br, Br);
+ INSTKEYWORD(switch, Switch);
+ INSTKEYWORD(indirectbr, IndirectBr);
+ INSTKEYWORD(invoke, Invoke);
+ INSTKEYWORD(resume, Resume);
+ INSTKEYWORD(unreachable, Unreachable);
+
+ INSTKEYWORD(alloca, Alloca);
+ INSTKEYWORD(load, Load);
+ INSTKEYWORD(store, Store);
+ INSTKEYWORD(cmpxchg, AtomicCmpXchg);
+ INSTKEYWORD(atomicrmw, AtomicRMW);
+ INSTKEYWORD(fence, Fence);
+ INSTKEYWORD(getelementptr, GetElementPtr);
+
+ INSTKEYWORD(extractelement, ExtractElement);
+ INSTKEYWORD(insertelement, InsertElement);
+ INSTKEYWORD(shufflevector, ShuffleVector);
+ INSTKEYWORD(extractvalue, ExtractValue);
+ INSTKEYWORD(insertvalue, InsertValue);
+ INSTKEYWORD(landingpad, LandingPad);
+#undef INSTKEYWORD
+
// 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') &&
- TokStart[1] == '0' && TokStart[2] == 'x' && isxdigit(TokStart[3])) {
+ TokStart[1] == '0' && TokStart[2] == 'x' &&
+ isxdigit(static_cast<unsigned char>(TokStart[3]))) {
int len = CurPtr-TokStart-3;
uint32_t bits = len * 4;
- APInt Tmp(bits, TokStart+3, len, 16);
+ APInt Tmp(bits, StringRef(TokStart+3, len), 16);
uint32_t activeBits = Tmp.getActiveBits();
if (activeBits > 0 && activeBits < bits)
- Tmp.trunc(activeBits);
- if (Tmp.getBitWidth() > 64) {
- llvmAsmlval.APIntVal = new APInt(Tmp);
- return TokStart[0] == 's' ? ESAPINTVAL : EUAPINTVAL;
- } else if (TokStart[0] == 's') {
- llvmAsmlval.SInt64Val = Tmp.getSExtValue();
- return ESINT64VAL;
- } else {
- llvmAsmlval.UInt64Val = Tmp.getZExtValue();
- return EUINT64VAL;
- }
+ Tmp = Tmp.trunc(activeBits);
+ APSIntVal = APSInt(Tmp, TokStart[0] == 'u');
+ return lltok::APSInt;
}
-
- // Finally, if this is "cc1234", return this as just "cc".
+
+ // If this is "cc1234", return this as just "cc".
if (TokStart[0] == 'c' && TokStart[1] == 'c') {
CurPtr = TokStart+2;
- return CC_TOK;
+ return lltok::kw_cc;
}
-
- // Finally, if this isn't known, return just a single character.
+
+ // Finally, if this isn't known, return an error.
CurPtr = TokStart+1;
- return TokStart[0];
+ return lltok::Error;
}
/// HexFP80Constant 0xK[0-9A-Fa-f]+
/// HexFP128Constant 0xL[0-9A-Fa-f]+
/// HexPPC128Constant 0xM[0-9A-Fa-f]+
-int LLLexer::Lex0x() {
+/// HexHalfConstant 0xH[0-9A-Fa-f]+
+lltok::Kind LLLexer::Lex0x() {
CurPtr = TokStart + 2;
-
+
char Kind;
- if (CurPtr[0] >= 'K' && CurPtr[0] <= 'M') {
+ if ((CurPtr[0] >= 'K' && CurPtr[0] <= 'M') || CurPtr[0] == 'H') {
Kind = *CurPtr++;
} else {
Kind = 'J';
}
- if (!isxdigit(CurPtr[0])) {
- // Bad token, return it as just zero.
+ if (!isxdigit(static_cast<unsigned char>(CurPtr[0]))) {
+ // Bad token, return it as an error.
CurPtr = TokStart+1;
- return '0';
+ return lltok::Error;
}
-
- while (isxdigit(CurPtr[0]))
+
+ while (isxdigit(static_cast<unsigned char>(CurPtr[0])))
++CurPtr;
-
+
if (Kind == 'J') {
// HexFPConstant - Floating point constant represented in IEEE format as a
// hexadecimal number for when exponential notation is not precise enough.
- // Float and double only.
- llvmAsmlval.FPVal = new APFloat(HexToFP(TokStart+2, CurPtr));
- return FPVAL;
+ // Half, Float, and double only.
+ APFloatVal = APFloat(BitsToDouble(HexIntToVal(TokStart+2, CurPtr)));
+ return lltok::APFloat;
}
-
+
uint64_t Pair[2];
- HexToIntPair(TokStart+3, CurPtr, Pair);
switch (Kind) {
- default: assert(0 && "Unknown kind!");
+ default: llvm_unreachable("Unknown kind!");
case 'K':
// F80HexFPConstant - x87 long double in hexadecimal format (10 bytes)
- llvmAsmlval.FPVal = new APFloat(APInt(80, 2, Pair));
- return FPVAL;
+ FP80HexToIntPair(TokStart+3, CurPtr, Pair);
+ APFloatVal = APFloat(APFloat::x87DoubleExtended, APInt(80, Pair));
+ return lltok::APFloat;
case 'L':
// F128HexFPConstant - IEEE 128-bit in hexadecimal format (16 bytes)
- llvmAsmlval.FPVal = new APFloat(APInt(128, 2, Pair), true);
- return FPVAL;
+ HexToIntPair(TokStart+3, CurPtr, Pair);
+ APFloatVal = APFloat(APFloat::IEEEquad, APInt(128, Pair));
+ return lltok::APFloat;
case 'M':
// PPC128HexFPConstant - PowerPC 128-bit in hexadecimal format (16 bytes)
- llvmAsmlval.FPVal = new APFloat(APInt(128, 2, Pair));
- return FPVAL;
+ HexToIntPair(TokStart+3, CurPtr, Pair);
+ APFloatVal = APFloat(APFloat::PPCDoubleDouble, APInt(128, Pair));
+ return lltok::APFloat;
+ case 'H':
+ APFloatVal = APFloat(APFloat::IEEEhalf,
+ APInt(16,HexIntToVal(TokStart+3, CurPtr)));
+ return lltok::APFloat;
}
}
/// HexFP80Constant 0xK[0-9A-Fa-f]+
/// HexFP128Constant 0xL[0-9A-Fa-f]+
/// HexPPC128Constant 0xM[0-9A-Fa-f]+
-int LLLexer::LexDigitOrNegative() {
- // If the letter after the negative is a number, this is probably a label.
- if (!isdigit(TokStart[0]) && !isdigit(CurPtr[0])) {
+lltok::Kind LLLexer::LexDigitOrNegative() {
+ // If the letter after the negative is not a number, this is probably a label.
+ if (!isdigit(static_cast<unsigned char>(TokStart[0])) &&
+ !isdigit(static_cast<unsigned char>(CurPtr[0]))) {
// Okay, this is not a number after the -, it's probably a label.
if (const char *End = isLabelTail(CurPtr)) {
- llvmAsmlval.StrVal = new std::string(TokStart, End-1);
+ StrVal.assign(TokStart, End-1);
CurPtr = End;
- return LABELSTR;
+ return lltok::LabelStr;
}
-
- return CurPtr[-1];
+
+ return lltok::Error;
}
-
+
// At this point, it is either a label, int or fp constant.
-
+
// Skip digits, we have at least one.
- for (; isdigit(CurPtr[0]); ++CurPtr);
-
+ for (; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
+ /*empty*/;
+
// Check to see if this really is a label afterall, e.g. "-1:".
if (isLabelChar(CurPtr[0]) || CurPtr[0] == ':') {
if (const char *End = isLabelTail(CurPtr)) {
- llvmAsmlval.StrVal = new std::string(TokStart, End-1);
+ StrVal.assign(TokStart, End-1);
CurPtr = End;
- return LABELSTR;
+ return lltok::LabelStr;
}
}
-
+
// If the next character is a '.', then it is a fp value, otherwise its
// integer.
if (CurPtr[0] != '.') {
return Lex0x();
unsigned Len = CurPtr-TokStart;
uint32_t numBits = ((Len * 64) / 19) + 2;
- APInt Tmp(numBits, TokStart, Len, 10);
+ APInt Tmp(numBits, StringRef(TokStart, Len), 10);
if (TokStart[0] == '-') {
uint32_t minBits = Tmp.getMinSignedBits();
if (minBits > 0 && minBits < numBits)
- Tmp.trunc(minBits);
- if (Tmp.getBitWidth() > 64) {
- llvmAsmlval.APIntVal = new APInt(Tmp);
- return ESAPINTVAL;
- } else {
- llvmAsmlval.SInt64Val = Tmp.getSExtValue();
- return ESINT64VAL;
- }
+ Tmp = Tmp.trunc(minBits);
+ APSIntVal = APSInt(Tmp, false);
} else {
uint32_t activeBits = Tmp.getActiveBits();
if (activeBits > 0 && activeBits < numBits)
- Tmp.trunc(activeBits);
- if (Tmp.getBitWidth() > 64) {
- llvmAsmlval.APIntVal = new APInt(Tmp);
- return EUAPINTVAL;
- } else {
- llvmAsmlval.UInt64Val = Tmp.getZExtValue();
- return EUINT64VAL;
- }
+ Tmp = Tmp.trunc(activeBits);
+ APSIntVal = APSInt(Tmp, true);
}
+ return lltok::APSInt;
}
++CurPtr;
-
+
// Skip over [0-9]*([eE][-+]?[0-9]+)?
- while (isdigit(CurPtr[0])) ++CurPtr;
-
+ while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
+
if (CurPtr[0] == 'e' || CurPtr[0] == 'E') {
- if (isdigit(CurPtr[1]) ||
- ((CurPtr[1] == '-' || CurPtr[1] == '+') && isdigit(CurPtr[2]))) {
+ if (isdigit(static_cast<unsigned char>(CurPtr[1])) ||
+ ((CurPtr[1] == '-' || CurPtr[1] == '+') &&
+ isdigit(static_cast<unsigned char>(CurPtr[2])))) {
CurPtr += 2;
- while (isdigit(CurPtr[0])) ++CurPtr;
+ while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
}
}
-
- llvmAsmlval.FPVal = new APFloat(atof(TokStart));
- return FPVAL;
+
+ APFloatVal = APFloat(std::atof(TokStart));
+ return lltok::APFloat;
}
/// FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
-int LLLexer::LexPositive() {
+lltok::Kind LLLexer::LexPositive() {
// If the letter after the negative is a number, this is probably not a
// label.
- if (!isdigit(CurPtr[0]))
- return CurPtr[-1];
-
+ if (!isdigit(static_cast<unsigned char>(CurPtr[0])))
+ return lltok::Error;
+
// Skip digits.
- for (++CurPtr; isdigit(CurPtr[0]); ++CurPtr);
+ for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
+ /*empty*/;
// At this point, we need a '.'.
if (CurPtr[0] != '.') {
CurPtr = TokStart+1;
- return TokStart[0];
+ return lltok::Error;
}
-
+
++CurPtr;
-
+
// Skip over [0-9]*([eE][-+]?[0-9]+)?
- while (isdigit(CurPtr[0])) ++CurPtr;
-
+ while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
+
if (CurPtr[0] == 'e' || CurPtr[0] == 'E') {
- if (isdigit(CurPtr[1]) ||
- ((CurPtr[1] == '-' || CurPtr[1] == '+') && isdigit(CurPtr[2]))) {
+ if (isdigit(static_cast<unsigned char>(CurPtr[1])) ||
+ ((CurPtr[1] == '-' || CurPtr[1] == '+') &&
+ isdigit(static_cast<unsigned char>(CurPtr[2])))) {
CurPtr += 2;
- while (isdigit(CurPtr[0])) ++CurPtr;
+ while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
}
}
-
- llvmAsmlval.FPVal = new APFloat(atof(TokStart));
- return FPVAL;
-}
-
-//===----------------------------------------------------------------------===//
-// Define the interface to this file.
-//===----------------------------------------------------------------------===//
-
-static LLLexer *TheLexer;
-
-void InitLLLexer(llvm::MemoryBuffer *MB) {
- assert(TheLexer == 0 && "LL Lexer isn't reentrant yet");
- TheLexer = new LLLexer(MB);
-}
-
-int llvmAsmlex() {
- return TheLexer->LexToken();
-}
-const char *LLLgetTokenStart() { return TheLexer->getTokStart(); }
-unsigned LLLgetTokenLength() { return TheLexer->getTokLength(); }
-std::string LLLgetFilename() { return TheLexer->getFilename(); }
-unsigned LLLgetLineNo() { return TheLexer->getLineNo(); }
-
-void FreeLexer() {
- delete TheLexer;
- TheLexer = 0;
+ APFloatVal = APFloat(std::atof(TokStart));
+ return lltok::APFloat;
}
projects / oota-llvm.git / blobdiff