+++ /dev/null
-/*===-- UpgradeLexer.l - Scanner for 1.9 assembly files --------*- C++ -*--===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the flex scanner for LLVM 1.9 assembly languages files.
-// This doesn't handle long double constants, since LLVM 1.9 did not have them.
-//
-//===----------------------------------------------------------------------===*/
-
-%option prefix="Upgrade"
-%option yylineno
-%option nostdinit
-%option never-interactive
-%option batch
-%option noyywrap
-%option nodefault
-%option 8bit
-%option outfile="UpgradeLexer.cpp"
-%option ecs
-%option noreject
-%option noyymore
-
-%{
-#include "UpgradeInternals.h"
-#include "llvm/Module.h"
-#include <list>
-#include "UpgradeParser.h"
-#include <cctype>
-#include <cstdlib>
-
-#define YY_INPUT(buf,result,max_size) \
-{ \
- if (LexInput->good() && !LexInput->eof()) { \
- LexInput->read(buf,max_size); \
- result = LexInput->gcount(); \
- } else {\
- result = YY_NULL; \
- } \
-}
-
-#define YY_NEVER_INTERACTIVE 1
-
-// Construct a token value for a non-obsolete token
-#define RET_TOK(type, Enum, sym) \
- Upgradelval.type = Enum; \
- return sym
-
-#define RET_TY(sym,NewTY,sign) \
- Upgradelval.PrimType.T = NewTY; \
- switch (sign) { \
- case 0: Upgradelval.PrimType.S.makeSignless(); break; \
- case 1: Upgradelval.PrimType.S.makeUnsigned(); break; \
- case 2: Upgradelval.PrimType.S.makeSigned(); break; \
- default: assert(0 && "Invalid sign kind"); break; \
- }\
- return sym
-
-namespace llvm {
-
-// TODO: All of the static identifiers are figured out by the lexer,
-// these should be hashed to reduce the lexer size
-
-// UnEscapeLexed - Run through the specified buffer and change \xx codes to the
-// appropriate character. If AllowNull is set to false, a \00 value will cause
-// an exception to be thrown.
-//
-// If AllowNull is set to true, the return value of the function points to the
-// last character of the string in memory.
-//
-char *UnEscapeLexed(char *Buffer, bool AllowNull) {
- char *BOut = Buffer;
- for (char *BIn = Buffer; *BIn; ) {
- if (BIn[0] == '\\' && 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
- if (!AllowNull && !*BOut)
- error("String literal cannot accept \\00 escape!");
-
- BIn[3] = Tmp; // Restore character
- BIn += 3; // Skip over handled chars
- ++BOut;
- } else {
- *BOut++ = *BIn++;
- }
- }
-
- return BOut;
-}
-
-// 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...
-//
-static uint64_t atoull(const char *Buffer) {
- uint64_t Result = 0;
- for (; *Buffer; 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 Result;
-}
-
-static uint64_t HexIntToVal(const char *Buffer) {
- uint64_t Result = 0;
- for (; *Buffer; ++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;
-
- if (Result < OldRes) // Uh, oh, overflow detected!!!
- error("constant bigger than 64 bits detected!");
- }
- return Result;
-}
-
-
-// HexToFP - Convert the ascii string in hexidecimal format to the floating
-// point representation of it.
-//
-static double HexToFP(const char *Buffer) {
- // Behave nicely in the face of C TBAA rules... see:
- // http://www.nullstone.com/htmls/category/aliastyp.htm
- union {
- uint64_t UI;
- double FP;
- } UIntToFP;
- UIntToFP.UI = HexIntToVal(Buffer);
-
- assert(sizeof(double) == sizeof(uint64_t) &&
- "Data sizes incompatible on this target!");
- return UIntToFP.FP; // Cast Hex constant to double
-}
-
-
-} // End llvm namespace
-
-using namespace llvm;
-
-%}
-
-
-
-/* Comments start with a ; and go till end of line */
-Comment ;.*
-
-/* Variable(Value) identifiers start with a % sign */
-VarID [%@][-a-zA-Z$._][-a-zA-Z$._0-9]*
-
-/* Label identifiers end with a colon */
-Label [-a-zA-Z$._0-9]+:
-QuoteLabel \"[^\"]+\":
-
-/* Quoted names can contain any character except " and \ */
-StringConstant @?\"[^\"]*\"
-
-
-/* [PN]Integer: match positive and negative literal integer values that
- * are preceeded by a '%' character. These represent unnamed variable slots.
- */
-EPInteger %[0-9]+
-ENInteger %-[0-9]+
-
-
-/* E[PN]Integer: match positive and negative literal integer values */
-PInteger [0-9]+
-NInteger -[0-9]+
-
-/* FPConstant - A Floating point constant.
- */
-FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
-
-/* HexFPConstant - Floating point constant represented in IEEE format as a
- * hexadecimal number for when exponential notation is not precise enough.
- */
-HexFPConstant 0x[0-9A-Fa-f]+
-
-/* HexIntConstant - Hexadecimal constant generated by the CFE to avoid forcing
- * it to deal with 64 bit numbers.
- */
-HexIntConstant [us]0x[0-9A-Fa-f]+
-%%
-
-{Comment} { /* Ignore comments for now */ }
-
-begin { return BEGINTOK; }
-end { return ENDTOK; }
-true { return TRUETOK; }
-false { return FALSETOK; }
-declare { return DECLARE; }
-global { return GLOBAL; }
-constant { return CONSTANT; }
-internal { return INTERNAL; }
-linkonce { return LINKONCE; }
-weak { return WEAK; }
-appending { return APPENDING; }
-dllimport { return DLLIMPORT; }
-dllexport { return DLLEXPORT; }
-extern_weak { return EXTERN_WEAK; }
-uninitialized { return EXTERNAL; } /* Deprecated, turn into external */
-external { return EXTERNAL; }
-implementation { return IMPLEMENTATION; }
-zeroinitializer { return ZEROINITIALIZER; }
-\.\.\. { return DOTDOTDOT; }
-undef { return UNDEF; }
-null { return NULL_TOK; }
-to { return TO; }
-except { return EXCEPT; }
-not { return NOT; } /* Deprecated, turned into XOR */
-tail { return TAIL; }
-target { return TARGET; }
-triple { return TRIPLE; }
-deplibs { return DEPLIBS; }
-endian { return ENDIAN; }
-pointersize { return POINTERSIZE; }
-datalayout { return DATALAYOUT; }
-little { return LITTLE; }
-big { return BIG; }
-volatile { return VOLATILE; }
-align { return ALIGN; }
-section { return SECTION; }
-module { return MODULE; }
-asm { return ASM_TOK; }
-sideeffect { return SIDEEFFECT; }
-
-cc { return CC_TOK; }
-ccc { return CCC_TOK; }
-csretcc { return CSRETCC_TOK; }
-fastcc { return FASTCC_TOK; }
-coldcc { return COLDCC_TOK; }
-x86_stdcallcc { return X86_STDCALLCC_TOK; }
-x86_fastcallcc { return X86_FASTCALLCC_TOK; }
-
-sbyte { RET_TY(SBYTE, Type::Int8Ty, 2); }
-ubyte { RET_TY(UBYTE, Type::Int8Ty, 1); }
-i8 { RET_TY(UBYTE, Type::Int8Ty, 1); }
-short { RET_TY(SHORT, Type::Int16Ty, 2); }
-ushort { RET_TY(USHORT, Type::Int16Ty, 1); }
-i16 { RET_TY(USHORT, Type::Int16Ty, 1); }
-int { RET_TY(INT, Type::Int32Ty, 2); }
-uint { RET_TY(UINT, Type::Int32Ty, 1); }
-i32 { RET_TY(UINT, Type::Int32Ty, 1); }
-long { RET_TY(LONG, Type::Int64Ty, 2); }
-ulong { RET_TY(ULONG, Type::Int64Ty, 1); }
-i64 { RET_TY(ULONG, Type::Int64Ty, 1); }
-void { RET_TY(VOID, Type::VoidTy, 0); }
-bool { RET_TY(BOOL, Type::Int1Ty, 1); }
-i1 { RET_TY(BOOL, Type::Int1Ty, 1); }
-float { RET_TY(FLOAT, Type::FloatTy, 0); }
-double { RET_TY(DOUBLE, Type::DoubleTy,0); }
-label { RET_TY(LABEL, Type::LabelTy, 0); }
-type { return TYPE; }
-opaque { return OPAQUE; }
-
-add { RET_TOK(BinaryOpVal, AddOp, ADD); }
-sub { RET_TOK(BinaryOpVal, SubOp, SUB); }
-mul { RET_TOK(BinaryOpVal, MulOp, MUL); }
-div { RET_TOK(BinaryOpVal, DivOp, DIV); }
-udiv { RET_TOK(BinaryOpVal, UDivOp, UDIV); }
-sdiv { RET_TOK(BinaryOpVal, SDivOp, SDIV); }
-fdiv { RET_TOK(BinaryOpVal, FDivOp, FDIV); }
-rem { RET_TOK(BinaryOpVal, RemOp, REM); }
-urem { RET_TOK(BinaryOpVal, URemOp, UREM); }
-srem { RET_TOK(BinaryOpVal, SRemOp, SREM); }
-frem { RET_TOK(BinaryOpVal, FRemOp, FREM); }
-and { RET_TOK(BinaryOpVal, AndOp, AND); }
-or { RET_TOK(BinaryOpVal, OrOp , OR ); }
-xor { RET_TOK(BinaryOpVal, XorOp, XOR); }
-setne { RET_TOK(BinaryOpVal, SetNE, SETNE); }
-seteq { RET_TOK(BinaryOpVal, SetEQ, SETEQ); }
-setlt { RET_TOK(BinaryOpVal, SetLT, SETLT); }
-setgt { RET_TOK(BinaryOpVal, SetGT, SETGT); }
-setle { RET_TOK(BinaryOpVal, SetLE, SETLE); }
-setge { RET_TOK(BinaryOpVal, SetGE, SETGE); }
-shl { RET_TOK(BinaryOpVal, ShlOp, SHL); }
-shr { RET_TOK(BinaryOpVal, ShrOp, SHR); }
-lshr { RET_TOK(BinaryOpVal, LShrOp, LSHR); }
-ashr { RET_TOK(BinaryOpVal, AShrOp, ASHR); }
-
-icmp { RET_TOK(OtherOpVal, ICmpOp, ICMP); }
-fcmp { RET_TOK(OtherOpVal, FCmpOp, FCMP); }
-
-eq { return EQ; }
-ne { return NE; }
-slt { return SLT; }
-sgt { return SGT; }
-sle { return SLE; }
-sge { return SGE; }
-ult { return ULT; }
-ugt { return UGT; }
-ule { return ULE; }
-uge { return UGE; }
-oeq { return OEQ; }
-one { return ONE; }
-olt { return OLT; }
-ogt { return OGT; }
-ole { return OLE; }
-oge { return OGE; }
-ord { return ORD; }
-uno { return UNO; }
-ueq { return UEQ; }
-une { return UNE; }
-
-phi { RET_TOK(OtherOpVal, PHIOp, PHI_TOK); }
-call { RET_TOK(OtherOpVal, CallOp, CALL); }
-cast { RET_TOK(CastOpVal, CastOp, CAST); }
-trunc { RET_TOK(CastOpVal, TruncOp, TRUNC); }
-zext { RET_TOK(CastOpVal, ZExtOp , ZEXT); }
-sext { RET_TOK(CastOpVal, SExtOp, SEXT); }
-fptrunc { RET_TOK(CastOpVal, FPTruncOp, FPTRUNC); }
-fpext { RET_TOK(CastOpVal, FPExtOp, FPEXT); }
-fptoui { RET_TOK(CastOpVal, FPToUIOp, FPTOUI); }
-fptosi { RET_TOK(CastOpVal, FPToSIOp, FPTOSI); }
-uitofp { RET_TOK(CastOpVal, UIToFPOp, UITOFP); }
-sitofp { RET_TOK(CastOpVal, SIToFPOp, SITOFP); }
-ptrtoint { RET_TOK(CastOpVal, PtrToIntOp, PTRTOINT); }
-inttoptr { RET_TOK(CastOpVal, IntToPtrOp, INTTOPTR); }
-bitcast { RET_TOK(CastOpVal, BitCastOp, BITCAST); }
-select { RET_TOK(OtherOpVal, SelectOp, SELECT); }
-vanext { return VANEXT_old; }
-vaarg { return VAARG_old; }
-va_arg { RET_TOK(OtherOpVal, VAArg , VAARG); }
-ret { RET_TOK(TermOpVal, RetOp, RET); }
-br { RET_TOK(TermOpVal, BrOp, BR); }
-switch { RET_TOK(TermOpVal, SwitchOp, SWITCH); }
-invoke { RET_TOK(TermOpVal, InvokeOp, INVOKE); }
-unwind { return UNWIND; }
-unreachable { RET_TOK(TermOpVal, UnreachableOp, UNREACHABLE); }
-
-malloc { RET_TOK(MemOpVal, MallocOp, MALLOC); }
-alloca { RET_TOK(MemOpVal, AllocaOp, ALLOCA); }
-free { RET_TOK(MemOpVal, FreeOp, FREE); }
-load { RET_TOK(MemOpVal, LoadOp, LOAD); }
-store { RET_TOK(MemOpVal, StoreOp, STORE); }
-getelementptr { RET_TOK(MemOpVal, GetElementPtrOp, GETELEMENTPTR); }
-
-extractelement { RET_TOK(OtherOpVal, ExtractElementOp, EXTRACTELEMENT); }
-insertelement { RET_TOK(OtherOpVal, InsertElementOp, INSERTELEMENT); }
-shufflevector { RET_TOK(OtherOpVal, ShuffleVectorOp, SHUFFLEVECTOR); }
-
-
-{VarID} {
- UnEscapeLexed(yytext+1);
- Upgradelval.StrVal = strdup(yytext+1); // Skip %
- return VAR_ID;
- }
-{Label} {
- yytext[strlen(yytext)-1] = 0; // nuke colon
- UnEscapeLexed(yytext);
- Upgradelval.StrVal = strdup(yytext);
- return LABELSTR;
- }
-{QuoteLabel} {
- yytext[strlen(yytext)-2] = 0; // nuke colon, end quote
- UnEscapeLexed(yytext+1);
- Upgradelval.StrVal = strdup(yytext+1);
- return LABELSTR;
- }
-
-{StringConstant} { // Note that we cannot unescape a string constant here! The
- // string constant might contain a \00 which would not be
- // understood by the string stuff. It is valid to make a
- // [sbyte] c"Hello World\00" constant, for example.
- //
- yytext[strlen(yytext)-1] = 0; // nuke end quote
- Upgradelval.StrVal = strdup(yytext+1); // Nuke start quote
- return STRINGCONSTANT;
- }
-
-
-{PInteger} { Upgradelval.UInt64Val = atoull(yytext); return EUINT64VAL; }
-{NInteger} {
- uint64_t Val = atoull(yytext+1);
- // +1: we have bigger negative range
- if (Val > (uint64_t)INT64_MAX+1)
- error("Constant too large for signed 64 bits!");
- Upgradelval.SInt64Val = -Val;
- return ESINT64VAL;
- }
-{HexIntConstant} {
- Upgradelval.UInt64Val = HexIntToVal(yytext+3);
- return yytext[0] == 's' ? ESINT64VAL : EUINT64VAL;
- }
-
-{EPInteger} {
- uint64_t Val = atoull(yytext+1);
- if ((unsigned)Val != Val)
- error("Invalid value number (too large)!");
- Upgradelval.UIntVal = unsigned(Val);
- return UINTVAL;
- }
-{ENInteger} {
- uint64_t Val = atoull(yytext+2);
- // +1: we have bigger negative range
- if (Val > (uint64_t)INT32_MAX+1)
- error("Constant too large for signed 32 bits!");
- Upgradelval.SIntVal = (int)-Val;
- return SINTVAL;
- }
-
-{FPConstant} { Upgradelval.FPVal = new APFloat(atof(yytext)); return FPVAL; }
-{HexFPConstant} { Upgradelval.FPVal = new APFloat(HexToFP(yytext));
- return FPVAL;
- }
-
-<<EOF>> {
- /* Make sure to free the internal buffers for flex when we are
- * done reading our input!
- */
- yy_delete_buffer(YY_CURRENT_BUFFER);
- return EOF;
- }
-
-[ \r\t\n] { /* Ignore whitespace */ }
-. { return yytext[0]; }
-
-%%
projects / oota-llvm.git / blobdiff