1020 lines
30 KiB
C++
1020 lines
30 KiB
C++
//===- LLLexer.cpp - Lexer for .ll Files ----------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Implement the Lexer for .ll files.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "LLLexer.h"
|
|
#include "llvm/ADT/APInt.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/IR/DerivedTypes.h"
|
|
#include "llvm/IR/Instruction.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include <cassert>
|
|
#include <cctype>
|
|
#include <cstdio>
|
|
|
|
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.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// atoull - Convert an ascii string of decimal digits into the unsigned long
|
|
// long representation... this does not have to do input error checking,
|
|
// because we know that the input will be matched by a suitable regex...
|
|
//
|
|
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!!!
|
|
Error("constant bigger than 64 bits detected!");
|
|
return 0;
|
|
}
|
|
}
|
|
return Result;
|
|
}
|
|
|
|
uint64_t LLLexer::HexIntToVal(const char *Buffer, const char *End) {
|
|
uint64_t Result = 0;
|
|
for (; Buffer != End; ++Buffer) {
|
|
uint64_t OldRes = Result;
|
|
Result *= 16;
|
|
Result += hexDigitValue(*Buffer);
|
|
|
|
if (Result < OldRes) { // Uh, oh, overflow detected!!!
|
|
Error("constant bigger than 64 bits detected!");
|
|
return 0;
|
|
}
|
|
}
|
|
return Result;
|
|
}
|
|
|
|
void LLLexer::HexToIntPair(const char *Buffer, const char *End,
|
|
uint64_t Pair[2]) {
|
|
Pair[0] = 0;
|
|
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++) {
|
|
Pair[1] *= 16;
|
|
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 && Buffer != End; 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[0] == '\\') {
|
|
if (BIn < EndBuffer-1 && BIn[1] == '\\') {
|
|
*BOut++ = '\\'; // Two \ becomes one
|
|
BIn += 2;
|
|
} 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 {
|
|
*BOut++ = *BIn++;
|
|
}
|
|
} else {
|
|
*BOut++ = *BIn++;
|
|
}
|
|
}
|
|
Str.resize(BOut-Buffer);
|
|
}
|
|
|
|
/// isLabelChar - Return true for [-a-zA-Z$._0-9].
|
|
static bool isLabelChar(char C) {
|
|
return isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
|
|
C == '.' || C == '_';
|
|
}
|
|
|
|
/// isLabelTail - Return true if this pointer points to a valid end of a label.
|
|
static const char *isLabelTail(const char *CurPtr) {
|
|
while (true) {
|
|
if (CurPtr[0] == ':') return CurPtr+1;
|
|
if (!isLabelChar(CurPtr[0])) return nullptr;
|
|
++CurPtr;
|
|
}
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Lexer definition.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
LLLexer::LLLexer(StringRef StartBuf, SourceMgr &sm, SMDiagnostic &Err,
|
|
LLVMContext &C)
|
|
: CurBuf(StartBuf), ErrorInfo(Err), SM(sm), Context(C), APFloatVal(0.0) {
|
|
CurPtr = CurBuf.begin();
|
|
}
|
|
|
|
int LLLexer::getNextChar() {
|
|
char CurChar = *CurPtr++;
|
|
switch (CurChar) {
|
|
default: return (unsigned char)CurChar;
|
|
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.end())
|
|
return 0; // Just whitespace.
|
|
|
|
// Otherwise, return end of file.
|
|
--CurPtr; // Another call to lex will return EOF again.
|
|
return EOF;
|
|
}
|
|
}
|
|
|
|
lltok::Kind LLLexer::LexToken() {
|
|
while (true) {
|
|
TokStart = CurPtr;
|
|
|
|
int CurChar = getNextChar();
|
|
switch (CurChar) {
|
|
default:
|
|
// Handle letters: [a-zA-Z_]
|
|
if (isalpha(static_cast<unsigned char>(CurChar)) || CurChar == '_')
|
|
return LexIdentifier();
|
|
|
|
return lltok::Error;
|
|
case EOF: return lltok::Eof;
|
|
case 0:
|
|
case ' ':
|
|
case '\t':
|
|
case '\n':
|
|
case '\r':
|
|
// Ignore whitespace.
|
|
continue;
|
|
case '+': return LexPositive();
|
|
case '@': return LexAt();
|
|
case '$': return LexDollar();
|
|
case '%': return LexPercent();
|
|
case '"': return LexQuote();
|
|
case '.':
|
|
if (const char *Ptr = isLabelTail(CurPtr)) {
|
|
CurPtr = Ptr;
|
|
StrVal.assign(TokStart, CurPtr-1);
|
|
return lltok::LabelStr;
|
|
}
|
|
if (CurPtr[0] == '.' && CurPtr[1] == '.') {
|
|
CurPtr += 2;
|
|
return lltok::dotdotdot;
|
|
}
|
|
return lltok::Error;
|
|
case ';':
|
|
SkipLineComment();
|
|
continue;
|
|
case '!': return LexExclaim();
|
|
case '#': return LexHash();
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
case '-':
|
|
return LexDigitOrNegative();
|
|
case '=': return lltok::equal;
|
|
case '[': return lltok::lsquare;
|
|
case ']': return lltok::rsquare;
|
|
case '{': return lltok::lbrace;
|
|
case '}': return lltok::rbrace;
|
|
case '<': return lltok::less;
|
|
case '>': return lltok::greater;
|
|
case '(': return lltok::lparen;
|
|
case ')': return lltok::rparen;
|
|
case ',': return lltok::comma;
|
|
case '*': return lltok::star;
|
|
case '|': return lltok::bar;
|
|
}
|
|
}
|
|
}
|
|
|
|
void LLLexer::SkipLineComment() {
|
|
while (true) {
|
|
if (CurPtr[0] == '\n' || CurPtr[0] == '\r' || getNextChar() == EOF)
|
|
return;
|
|
}
|
|
}
|
|
|
|
/// Lex all tokens that start with an @ character.
|
|
/// GlobalVar @\"[^\"]*\"
|
|
/// GlobalVar @[-a-zA-Z$._][-a-zA-Z$._0-9]*
|
|
/// GlobalVarID @[0-9]+
|
|
lltok::Kind LLLexer::LexAt() {
|
|
return LexVar(lltok::GlobalVar, lltok::GlobalID);
|
|
}
|
|
|
|
lltok::Kind LLLexer::LexDollar() {
|
|
if (const char *Ptr = isLabelTail(TokStart)) {
|
|
CurPtr = Ptr;
|
|
StrVal.assign(TokStart, CurPtr - 1);
|
|
return lltok::LabelStr;
|
|
}
|
|
|
|
// Handle DollarStringConstant: $\"[^\"]*\"
|
|
if (CurPtr[0] == '"') {
|
|
++CurPtr;
|
|
|
|
while (true) {
|
|
int CurChar = getNextChar();
|
|
|
|
if (CurChar == EOF) {
|
|
Error("end of file in COMDAT 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::ComdatVar;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle ComdatVarName: $[-a-zA-Z$._][-a-zA-Z$._0-9]*
|
|
if (ReadVarName())
|
|
return lltok::ComdatVar;
|
|
|
|
return lltok::Error;
|
|
}
|
|
|
|
/// ReadString - Read a string until the closing quote.
|
|
lltok::Kind LLLexer::ReadString(lltok::Kind kind) {
|
|
const char *Start = CurPtr;
|
|
while (true) {
|
|
int CurChar = getNextChar();
|
|
|
|
if (CurChar == EOF) {
|
|
Error("end of file in string constant");
|
|
return lltok::Error;
|
|
}
|
|
if (CurChar == '"') {
|
|
StrVal.assign(Start, CurPtr-1);
|
|
UnEscapeLexed(StrVal);
|
|
return kind;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// ReadVarName - Read the rest of a token containing a variable name.
|
|
bool LLLexer::ReadVarName() {
|
|
const char *NameStart = CurPtr;
|
|
if (isalpha(static_cast<unsigned char>(CurPtr[0])) ||
|
|
CurPtr[0] == '-' || CurPtr[0] == '$' ||
|
|
CurPtr[0] == '.' || CurPtr[0] == '_') {
|
|
++CurPtr;
|
|
while (isalnum(static_cast<unsigned char>(CurPtr[0])) ||
|
|
CurPtr[0] == '-' || CurPtr[0] == '$' ||
|
|
CurPtr[0] == '.' || CurPtr[0] == '_')
|
|
++CurPtr;
|
|
|
|
StrVal.assign(NameStart, CurPtr);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
lltok::Kind LLLexer::LexVar(lltok::Kind Var, lltok::Kind VarID) {
|
|
// Handle StringConstant: \"[^\"]*\"
|
|
if (CurPtr[0] == '"') {
|
|
++CurPtr;
|
|
|
|
while (true) {
|
|
int CurChar = getNextChar();
|
|
|
|
if (CurChar == EOF) {
|
|
Error("end of file in global variable name");
|
|
return lltok::Error;
|
|
}
|
|
if (CurChar == '"') {
|
|
StrVal.assign(TokStart+2, CurPtr-1);
|
|
UnEscapeLexed(StrVal);
|
|
if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
|
|
Error("Null bytes are not allowed in names");
|
|
return lltok::Error;
|
|
}
|
|
return Var;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle VarName: [-a-zA-Z$._][-a-zA-Z$._0-9]*
|
|
if (ReadVarName())
|
|
return Var;
|
|
|
|
// Handle VarID: [0-9]+
|
|
if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
|
|
for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
|
|
/*empty*/;
|
|
|
|
uint64_t Val = atoull(TokStart+1, CurPtr);
|
|
if ((unsigned)Val != Val)
|
|
Error("invalid value number (too large)!");
|
|
UIntVal = unsigned(Val);
|
|
return VarID;
|
|
}
|
|
return lltok::Error;
|
|
}
|
|
|
|
/// Lex all tokens that start with a % character.
|
|
/// LocalVar ::= %\"[^\"]*\"
|
|
/// LocalVar ::= %[-a-zA-Z$._][-a-zA-Z$._0-9]*
|
|
/// LocalVarID ::= %[0-9]+
|
|
lltok::Kind LLLexer::LexPercent() {
|
|
return LexVar(lltok::LocalVar, lltok::LocalVarID);
|
|
}
|
|
|
|
/// Lex all tokens that start with a " character.
|
|
/// QuoteLabel "[^"]+":
|
|
/// StringConstant "[^"]*"
|
|
lltok::Kind LLLexer::LexQuote() {
|
|
lltok::Kind kind = ReadString(lltok::StringConstant);
|
|
if (kind == lltok::Error || kind == lltok::Eof)
|
|
return kind;
|
|
|
|
if (CurPtr[0] == ':') {
|
|
++CurPtr;
|
|
if (StringRef(StrVal).find_first_of(0) != StringRef::npos) {
|
|
Error("Null bytes are not allowed in names");
|
|
kind = lltok::Error;
|
|
} else {
|
|
kind = lltok::LabelStr;
|
|
}
|
|
}
|
|
|
|
return kind;
|
|
}
|
|
|
|
/// Lex all tokens that start with a ! character.
|
|
/// !foo
|
|
/// !
|
|
lltok::Kind LLLexer::LexExclaim() {
|
|
// Lex a metadata name as a MetadataVar.
|
|
if (isalpha(static_cast<unsigned char>(CurPtr[0])) ||
|
|
CurPtr[0] == '-' || CurPtr[0] == '$' ||
|
|
CurPtr[0] == '.' || CurPtr[0] == '_' || CurPtr[0] == '\\') {
|
|
++CurPtr;
|
|
while (isalnum(static_cast<unsigned char>(CurPtr[0])) ||
|
|
CurPtr[0] == '-' || CurPtr[0] == '$' ||
|
|
CurPtr[0] == '.' || CurPtr[0] == '_' || CurPtr[0] == '\\')
|
|
++CurPtr;
|
|
|
|
StrVal.assign(TokStart+1, CurPtr); // Skip !
|
|
UnEscapeLexed(StrVal);
|
|
return lltok::MetadataVar;
|
|
}
|
|
return lltok::exclaim;
|
|
}
|
|
|
|
/// Lex all tokens that start with a # character.
|
|
/// AttrGrpID ::= #[0-9]+
|
|
lltok::Kind LLLexer::LexHash() {
|
|
// Handle AttrGrpID: #[0-9]+
|
|
if (isdigit(static_cast<unsigned char>(CurPtr[0]))) {
|
|
for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
|
|
/*empty*/;
|
|
|
|
uint64_t Val = atoull(TokStart+1, CurPtr);
|
|
if ((unsigned)Val != Val)
|
|
Error("invalid value number (too large)!");
|
|
UIntVal = unsigned(Val);
|
|
return lltok::AttrGrpID;
|
|
}
|
|
|
|
return lltok::Error;
|
|
}
|
|
|
|
/// Lex a label, integer type, keyword, or hexadecimal integer constant.
|
|
/// Label [-a-zA-Z$._0-9]+:
|
|
/// IntegerType i[0-9]+
|
|
/// Keyword sdiv, float, ...
|
|
/// HexIntConstant [us]0x[0-9A-Fa-f]+
|
|
lltok::Kind LLLexer::LexIdentifier() {
|
|
const char *StartChar = CurPtr;
|
|
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(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 == ':') {
|
|
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) IntEnd = CurPtr;
|
|
if (IntEnd != StartChar) {
|
|
CurPtr = IntEnd;
|
|
uint64_t NumBits = atoull(StartChar, CurPtr);
|
|
if (NumBits < IntegerType::MIN_INT_BITS ||
|
|
NumBits > IntegerType::MAX_INT_BITS) {
|
|
Error("bitwidth for integer type out of range!");
|
|
return lltok::Error;
|
|
}
|
|
TyVal = IntegerType::get(Context, NumBits);
|
|
return lltok::Type;
|
|
}
|
|
|
|
// Otherwise, this was a letter sequence. See which keyword this is.
|
|
if (!KeywordEnd) KeywordEnd = CurPtr;
|
|
CurPtr = KeywordEnd;
|
|
--StartChar;
|
|
StringRef Keyword(StartChar, CurPtr - StartChar);
|
|
|
|
#define KEYWORD(STR) \
|
|
do { \
|
|
if (Keyword == #STR) \
|
|
return lltok::kw_##STR; \
|
|
} while (false)
|
|
|
|
KEYWORD(true); KEYWORD(false);
|
|
KEYWORD(declare); KEYWORD(define);
|
|
KEYWORD(global); KEYWORD(constant);
|
|
|
|
KEYWORD(private);
|
|
KEYWORD(internal);
|
|
KEYWORD(available_externally);
|
|
KEYWORD(linkonce);
|
|
KEYWORD(linkonce_odr);
|
|
KEYWORD(weak); // Use as a linkage, and a modifier for "cmpxchg".
|
|
KEYWORD(weak_odr);
|
|
KEYWORD(appending);
|
|
KEYWORD(dllimport);
|
|
KEYWORD(dllexport);
|
|
KEYWORD(common);
|
|
KEYWORD(default);
|
|
KEYWORD(hidden);
|
|
KEYWORD(protected);
|
|
KEYWORD(unnamed_addr);
|
|
KEYWORD(local_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(none);
|
|
KEYWORD(to);
|
|
KEYWORD(caller);
|
|
KEYWORD(within);
|
|
KEYWORD(from);
|
|
KEYWORD(tail);
|
|
KEYWORD(musttail);
|
|
KEYWORD(notail);
|
|
KEYWORD(target);
|
|
KEYWORD(triple);
|
|
KEYWORD(source_filename);
|
|
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(contract);
|
|
KEYWORD(fast);
|
|
KEYWORD(nuw);
|
|
KEYWORD(nsw);
|
|
KEYWORD(exact);
|
|
KEYWORD(inbounds);
|
|
KEYWORD(inrange);
|
|
KEYWORD(align);
|
|
KEYWORD(addrspace);
|
|
KEYWORD(section);
|
|
KEYWORD(alias);
|
|
KEYWORD(ifunc);
|
|
KEYWORD(module);
|
|
KEYWORD(asm);
|
|
KEYWORD(sideeffect);
|
|
KEYWORD(alignstack);
|
|
KEYWORD(inteldialect);
|
|
KEYWORD(gc);
|
|
KEYWORD(prefix);
|
|
KEYWORD(prologue);
|
|
|
|
KEYWORD(ccc);
|
|
KEYWORD(fastcc);
|
|
KEYWORD(coldcc);
|
|
KEYWORD(x86_stdcallcc);
|
|
KEYWORD(x86_fastcallcc);
|
|
KEYWORD(x86_thiscallcc);
|
|
KEYWORD(x86_vectorcallcc);
|
|
KEYWORD(arm_apcscc);
|
|
KEYWORD(arm_aapcscc);
|
|
KEYWORD(arm_aapcs_vfpcc);
|
|
KEYWORD(msp430_intrcc);
|
|
KEYWORD(avr_intrcc);
|
|
KEYWORD(avr_signalcc);
|
|
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(x86_regcallcc);
|
|
KEYWORD(webkit_jscc);
|
|
KEYWORD(swiftcc);
|
|
KEYWORD(anyregcc);
|
|
KEYWORD(preserve_mostcc);
|
|
KEYWORD(preserve_allcc);
|
|
KEYWORD(ghccc);
|
|
KEYWORD(x86_intrcc);
|
|
KEYWORD(hhvmcc);
|
|
KEYWORD(hhvm_ccc);
|
|
KEYWORD(cxx_fast_tlscc);
|
|
KEYWORD(amdgpu_vs);
|
|
KEYWORD(amdgpu_hs);
|
|
KEYWORD(amdgpu_gs);
|
|
KEYWORD(amdgpu_ps);
|
|
KEYWORD(amdgpu_cs);
|
|
KEYWORD(amdgpu_kernel);
|
|
|
|
KEYWORD(cc);
|
|
KEYWORD(c);
|
|
|
|
KEYWORD(attributes);
|
|
|
|
KEYWORD(alwaysinline);
|
|
KEYWORD(allocsize);
|
|
KEYWORD(argmemonly);
|
|
KEYWORD(builtin);
|
|
KEYWORD(byval);
|
|
KEYWORD(inalloca);
|
|
KEYWORD(cold);
|
|
KEYWORD(convergent);
|
|
KEYWORD(dereferenceable);
|
|
KEYWORD(dereferenceable_or_null);
|
|
KEYWORD(inaccessiblememonly);
|
|
KEYWORD(inaccessiblemem_or_argmemonly);
|
|
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(norecurse);
|
|
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(speculatable);
|
|
KEYWORD(sret);
|
|
KEYWORD(ssp);
|
|
KEYWORD(sspreq);
|
|
KEYWORD(sspstrong);
|
|
KEYWORD(safestack);
|
|
KEYWORD(sanitize_address);
|
|
KEYWORD(sanitize_thread);
|
|
KEYWORD(sanitize_memory);
|
|
KEYWORD(swifterror);
|
|
KEYWORD(swiftself);
|
|
KEYWORD(uwtable);
|
|
KEYWORD(writeonly);
|
|
KEYWORD(zeroext);
|
|
|
|
KEYWORD(type);
|
|
KEYWORD(opaque);
|
|
|
|
KEYWORD(comdat);
|
|
|
|
// Comdat types
|
|
KEYWORD(any);
|
|
KEYWORD(exactmatch);
|
|
KEYWORD(largest);
|
|
KEYWORD(noduplicates);
|
|
KEYWORD(samesize);
|
|
|
|
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);
|
|
|
|
// Metadata types.
|
|
KEYWORD(distinct);
|
|
|
|
// Use-list order directives.
|
|
KEYWORD(uselistorder);
|
|
KEYWORD(uselistorder_bb);
|
|
|
|
KEYWORD(personality);
|
|
KEYWORD(cleanup);
|
|
KEYWORD(catch);
|
|
KEYWORD(filter);
|
|
|
|
#undef KEYWORD
|
|
|
|
// Keywords for types.
|
|
#define TYPEKEYWORD(STR, LLVMTY) \
|
|
do { \
|
|
if (Keyword == STR) { \
|
|
TyVal = LLVMTY; \
|
|
return lltok::Type; \
|
|
} \
|
|
} while (false)
|
|
|
|
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));
|
|
TYPEKEYWORD("token", Type::getTokenTy(Context));
|
|
|
|
#undef TYPEKEYWORD
|
|
|
|
// Keywords for instructions.
|
|
#define INSTKEYWORD(STR, Enum) \
|
|
do { \
|
|
if (Keyword == #STR) { \
|
|
UIntVal = Instruction::Enum; \
|
|
return lltok::kw_##STR; \
|
|
} \
|
|
} while (false)
|
|
|
|
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);
|
|
INSTKEYWORD(cleanupret, CleanupRet);
|
|
INSTKEYWORD(catchret, CatchRet);
|
|
INSTKEYWORD(catchswitch, CatchSwitch);
|
|
INSTKEYWORD(catchpad, CatchPad);
|
|
INSTKEYWORD(cleanuppad, CleanupPad);
|
|
|
|
#undef INSTKEYWORD
|
|
|
|
#define DWKEYWORD(TYPE, TOKEN) \
|
|
do { \
|
|
if (Keyword.startswith("DW_" #TYPE "_")) { \
|
|
StrVal.assign(Keyword.begin(), Keyword.end()); \
|
|
return lltok::TOKEN; \
|
|
} \
|
|
} while (false)
|
|
|
|
DWKEYWORD(TAG, DwarfTag);
|
|
DWKEYWORD(ATE, DwarfAttEncoding);
|
|
DWKEYWORD(VIRTUALITY, DwarfVirtuality);
|
|
DWKEYWORD(LANG, DwarfLang);
|
|
DWKEYWORD(CC, DwarfCC);
|
|
DWKEYWORD(OP, DwarfOp);
|
|
DWKEYWORD(MACINFO, DwarfMacinfo);
|
|
|
|
#undef DWKEYWORD
|
|
|
|
if (Keyword.startswith("DIFlag")) {
|
|
StrVal.assign(Keyword.begin(), Keyword.end());
|
|
return lltok::DIFlag;
|
|
}
|
|
|
|
if (Keyword.startswith("CSK_")) {
|
|
StrVal.assign(Keyword.begin(), Keyword.end());
|
|
return lltok::ChecksumKind;
|
|
}
|
|
|
|
if (Keyword == "NoDebug" || Keyword == "FullDebug" ||
|
|
Keyword == "LineTablesOnly") {
|
|
StrVal.assign(Keyword.begin(), Keyword.end());
|
|
return lltok::EmissionKind;
|
|
}
|
|
|
|
// 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(static_cast<unsigned char>(TokStart[3]))) {
|
|
int len = CurPtr-TokStart-3;
|
|
uint32_t bits = len * 4;
|
|
StringRef HexStr(TokStart + 3, len);
|
|
if (!all_of(HexStr, 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);
|
|
APSIntVal = APSInt(Tmp, TokStart[0] == 'u');
|
|
return lltok::APSInt;
|
|
}
|
|
|
|
// If this is "cc1234", return this as just "cc".
|
|
if (TokStart[0] == 'c' && TokStart[1] == 'c') {
|
|
CurPtr = TokStart+2;
|
|
return lltok::kw_cc;
|
|
}
|
|
|
|
// Finally, if this isn't known, return an error.
|
|
CurPtr = TokStart+1;
|
|
return lltok::Error;
|
|
}
|
|
|
|
/// Lex all tokens that start with a 0x prefix, knowing they match and are not
|
|
/// labels.
|
|
/// HexFPConstant 0x[0-9A-Fa-f]+
|
|
/// HexFP80Constant 0xK[0-9A-Fa-f]+
|
|
/// HexFP128Constant 0xL[0-9A-Fa-f]+
|
|
/// HexPPC128Constant 0xM[0-9A-Fa-f]+
|
|
/// HexHalfConstant 0xH[0-9A-Fa-f]+
|
|
lltok::Kind LLLexer::Lex0x() {
|
|
CurPtr = TokStart + 2;
|
|
|
|
char Kind;
|
|
if ((CurPtr[0] >= 'K' && CurPtr[0] <= 'M') || CurPtr[0] == 'H') {
|
|
Kind = *CurPtr++;
|
|
} else {
|
|
Kind = 'J';
|
|
}
|
|
|
|
if (!isxdigit(static_cast<unsigned char>(CurPtr[0]))) {
|
|
// Bad token, return it as an error.
|
|
CurPtr = TokStart+1;
|
|
return lltok::Error;
|
|
}
|
|
|
|
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.
|
|
// Half, Float, and double only.
|
|
APFloatVal = APFloat(APFloat::IEEEdouble(),
|
|
APInt(64, HexIntToVal(TokStart + 2, CurPtr)));
|
|
return lltok::APFloat;
|
|
}
|
|
|
|
uint64_t Pair[2];
|
|
switch (Kind) {
|
|
default: llvm_unreachable("Unknown kind!");
|
|
case 'K':
|
|
// F80HexFPConstant - x87 long double in hexadecimal format (10 bytes)
|
|
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)
|
|
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)
|
|
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;
|
|
}
|
|
}
|
|
|
|
/// Lex tokens for a label or a numeric constant, possibly starting with -.
|
|
/// Label [-a-zA-Z$._0-9]+:
|
|
/// NInteger -[0-9]+
|
|
/// FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
|
|
/// PInteger [0-9]+
|
|
/// HexFPConstant 0x[0-9A-Fa-f]+
|
|
/// HexFP80Constant 0xK[0-9A-Fa-f]+
|
|
/// HexFP128Constant 0xL[0-9A-Fa-f]+
|
|
/// HexPPC128Constant 0xM[0-9A-Fa-f]+
|
|
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)) {
|
|
StrVal.assign(TokStart, End-1);
|
|
CurPtr = End;
|
|
return lltok::LabelStr;
|
|
}
|
|
|
|
return lltok::Error;
|
|
}
|
|
|
|
// At this point, it is either a label, int or fp constant.
|
|
|
|
// Skip digits, we have at least one.
|
|
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)) {
|
|
StrVal.assign(TokStart, End-1);
|
|
CurPtr = End;
|
|
return lltok::LabelStr;
|
|
}
|
|
}
|
|
|
|
// If the next character is a '.', then it is a fp value, otherwise its
|
|
// integer.
|
|
if (CurPtr[0] != '.') {
|
|
if (TokStart[0] == '0' && TokStart[1] == 'x')
|
|
return Lex0x();
|
|
APSIntVal = APSInt(StringRef(TokStart, CurPtr - TokStart));
|
|
return lltok::APSInt;
|
|
}
|
|
|
|
++CurPtr;
|
|
|
|
// Skip over [0-9]*([eE][-+]?[0-9]+)?
|
|
while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
|
|
|
|
if (CurPtr[0] == 'e' || CurPtr[0] == 'E') {
|
|
if (isdigit(static_cast<unsigned char>(CurPtr[1])) ||
|
|
((CurPtr[1] == '-' || CurPtr[1] == '+') &&
|
|
isdigit(static_cast<unsigned char>(CurPtr[2])))) {
|
|
CurPtr += 2;
|
|
while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
|
|
}
|
|
}
|
|
|
|
APFloatVal = APFloat(APFloat::IEEEdouble(),
|
|
StringRef(TokStart, CurPtr - TokStart));
|
|
return lltok::APFloat;
|
|
}
|
|
|
|
/// Lex a floating point constant starting with +.
|
|
/// FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
|
|
lltok::Kind LLLexer::LexPositive() {
|
|
// If the letter after the negative is a number, this is probably not a
|
|
// label.
|
|
if (!isdigit(static_cast<unsigned char>(CurPtr[0])))
|
|
return lltok::Error;
|
|
|
|
// Skip digits.
|
|
for (++CurPtr; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
|
|
/*empty*/;
|
|
|
|
// At this point, we need a '.'.
|
|
if (CurPtr[0] != '.') {
|
|
CurPtr = TokStart+1;
|
|
return lltok::Error;
|
|
}
|
|
|
|
++CurPtr;
|
|
|
|
// Skip over [0-9]*([eE][-+]?[0-9]+)?
|
|
while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
|
|
|
|
if (CurPtr[0] == 'e' || CurPtr[0] == 'E') {
|
|
if (isdigit(static_cast<unsigned char>(CurPtr[1])) ||
|
|
((CurPtr[1] == '-' || CurPtr[1] == '+') &&
|
|
isdigit(static_cast<unsigned char>(CurPtr[2])))) {
|
|
CurPtr += 2;
|
|
while (isdigit(static_cast<unsigned char>(CurPtr[0]))) ++CurPtr;
|
|
}
|
|
}
|
|
|
|
APFloatVal = APFloat(APFloat::IEEEdouble(),
|
|
StringRef(TokStart, CurPtr - TokStart));
|
|
return lltok::APFloat;
|
|
}
|