blob: d5b95401adbf542c9f9902b6c90e53c933825902 [file] [log] [blame]
/* A Bison parser, made by GNU Bison 2.1. */
/* Skeleton parser for Yacc-like parsing with Bison,
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* As a special exception, when this file is copied by Bison into a
Bison output file, you may use that output file without restriction.
This special exception was added by the Free Software Foundation
in version 1.24 of Bison. */
/* Written by Richard Stallman by simplifying the original so called
``semantic'' parser. */
/* All symbols defined below should begin with yy or YY, to avoid
infringing on user name space. This should be done even for local
variables, as they might otherwise be expanded by user macros.
There are some unavoidable exceptions within include files to
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
/* Identify Bison output. */
#define YYBISON 1
/* Bison version. */
#define YYBISON_VERSION "2.1"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
/* Pure parsers. */
#define YYPURE 0
/* Using locations. */
#define YYLSP_NEEDED 0
/* Substitute the variable and function names. */
#define yyparse Upgradeparse
#define yylex Upgradelex
#define yyerror Upgradeerror
#define yylval Upgradelval
#define yychar Upgradechar
#define yydebug Upgradedebug
#define yynerrs Upgradenerrs
/* Tokens. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
/* Put the tokens into the symbol table, so that GDB and other debuggers
know about them. */
enum yytokentype {
ESINT64VAL = 258,
EUINT64VAL = 259,
SINTVAL = 260,
UINTVAL = 261,
FPVAL = 262,
VOID = 263,
BOOL = 264,
SBYTE = 265,
UBYTE = 266,
SHORT = 267,
USHORT = 268,
INT = 269,
UINT = 270,
LONG = 271,
ULONG = 272,
FLOAT = 273,
DOUBLE = 274,
TYPE = 275,
LABEL = 276,
VAR_ID = 277,
LABELSTR = 278,
STRINGCONSTANT = 279,
IMPLEMENTATION = 280,
ZEROINITIALIZER = 281,
TRUETOK = 282,
FALSETOK = 283,
BEGINTOK = 284,
ENDTOK = 285,
DECLARE = 286,
GLOBAL = 287,
CONSTANT = 288,
SECTION = 289,
VOLATILE = 290,
TO = 291,
DOTDOTDOT = 292,
NULL_TOK = 293,
UNDEF = 294,
CONST = 295,
INTERNAL = 296,
LINKONCE = 297,
WEAK = 298,
APPENDING = 299,
DLLIMPORT = 300,
DLLEXPORT = 301,
EXTERN_WEAK = 302,
OPAQUE = 303,
NOT = 304,
EXTERNAL = 305,
TARGET = 306,
TRIPLE = 307,
ENDIAN = 308,
POINTERSIZE = 309,
LITTLE = 310,
BIG = 311,
ALIGN = 312,
DEPLIBS = 313,
CALL = 314,
TAIL = 315,
ASM_TOK = 316,
MODULE = 317,
SIDEEFFECT = 318,
CC_TOK = 319,
CCC_TOK = 320,
CSRETCC_TOK = 321,
FASTCC_TOK = 322,
COLDCC_TOK = 323,
X86_STDCALLCC_TOK = 324,
X86_FASTCALLCC_TOK = 325,
DATALAYOUT = 326,
RET = 327,
BR = 328,
SWITCH = 329,
INVOKE = 330,
UNREACHABLE = 331,
UNWIND = 332,
EXCEPT = 333,
ADD = 334,
SUB = 335,
MUL = 336,
DIV = 337,
UDIV = 338,
SDIV = 339,
FDIV = 340,
REM = 341,
UREM = 342,
SREM = 343,
FREM = 344,
AND = 345,
OR = 346,
XOR = 347,
SHL = 348,
SHR = 349,
ASHR = 350,
LSHR = 351,
SETLE = 352,
SETGE = 353,
SETLT = 354,
SETGT = 355,
SETEQ = 356,
SETNE = 357,
ICMP = 358,
FCMP = 359,
MALLOC = 360,
ALLOCA = 361,
FREE = 362,
LOAD = 363,
STORE = 364,
GETELEMENTPTR = 365,
PHI_TOK = 366,
SELECT = 367,
VAARG = 368,
EXTRACTELEMENT = 369,
INSERTELEMENT = 370,
SHUFFLEVECTOR = 371,
VAARG_old = 372,
VANEXT_old = 373,
EQ = 374,
NE = 375,
SLT = 376,
SGT = 377,
SLE = 378,
SGE = 379,
ULT = 380,
UGT = 381,
ULE = 382,
UGE = 383,
OEQ = 384,
ONE = 385,
OLT = 386,
OGT = 387,
OLE = 388,
OGE = 389,
ORD = 390,
UNO = 391,
UEQ = 392,
UNE = 393,
CAST = 394,
TRUNC = 395,
ZEXT = 396,
SEXT = 397,
FPTRUNC = 398,
FPEXT = 399,
FPTOUI = 400,
FPTOSI = 401,
UITOFP = 402,
SITOFP = 403,
PTRTOINT = 404,
INTTOPTR = 405,
BITCAST = 406
};
#endif
/* Tokens. */
#define ESINT64VAL 258
#define EUINT64VAL 259
#define SINTVAL 260
#define UINTVAL 261
#define FPVAL 262
#define VOID 263
#define BOOL 264
#define SBYTE 265
#define UBYTE 266
#define SHORT 267
#define USHORT 268
#define INT 269
#define UINT 270
#define LONG 271
#define ULONG 272
#define FLOAT 273
#define DOUBLE 274
#define TYPE 275
#define LABEL 276
#define VAR_ID 277
#define LABELSTR 278
#define STRINGCONSTANT 279
#define IMPLEMENTATION 280
#define ZEROINITIALIZER 281
#define TRUETOK 282
#define FALSETOK 283
#define BEGINTOK 284
#define ENDTOK 285
#define DECLARE 286
#define GLOBAL 287
#define CONSTANT 288
#define SECTION 289
#define VOLATILE 290
#define TO 291
#define DOTDOTDOT 292
#define NULL_TOK 293
#define UNDEF 294
#define CONST 295
#define INTERNAL 296
#define LINKONCE 297
#define WEAK 298
#define APPENDING 299
#define DLLIMPORT 300
#define DLLEXPORT 301
#define EXTERN_WEAK 302
#define OPAQUE 303
#define NOT 304
#define EXTERNAL 305
#define TARGET 306
#define TRIPLE 307
#define ENDIAN 308
#define POINTERSIZE 309
#define LITTLE 310
#define BIG 311
#define ALIGN 312
#define DEPLIBS 313
#define CALL 314
#define TAIL 315
#define ASM_TOK 316
#define MODULE 317
#define SIDEEFFECT 318
#define CC_TOK 319
#define CCC_TOK 320
#define CSRETCC_TOK 321
#define FASTCC_TOK 322
#define COLDCC_TOK 323
#define X86_STDCALLCC_TOK 324
#define X86_FASTCALLCC_TOK 325
#define DATALAYOUT 326
#define RET 327
#define BR 328
#define SWITCH 329
#define INVOKE 330
#define UNREACHABLE 331
#define UNWIND 332
#define EXCEPT 333
#define ADD 334
#define SUB 335
#define MUL 336
#define DIV 337
#define UDIV 338
#define SDIV 339
#define FDIV 340
#define REM 341
#define UREM 342
#define SREM 343
#define FREM 344
#define AND 345
#define OR 346
#define XOR 347
#define SHL 348
#define SHR 349
#define ASHR 350
#define LSHR 351
#define SETLE 352
#define SETGE 353
#define SETLT 354
#define SETGT 355
#define SETEQ 356
#define SETNE 357
#define ICMP 358
#define FCMP 359
#define MALLOC 360
#define ALLOCA 361
#define FREE 362
#define LOAD 363
#define STORE 364
#define GETELEMENTPTR 365
#define PHI_TOK 366
#define SELECT 367
#define VAARG 368
#define EXTRACTELEMENT 369
#define INSERTELEMENT 370
#define SHUFFLEVECTOR 371
#define VAARG_old 372
#define VANEXT_old 373
#define EQ 374
#define NE 375
#define SLT 376
#define SGT 377
#define SLE 378
#define SGE 379
#define ULT 380
#define UGT 381
#define ULE 382
#define UGE 383
#define OEQ 384
#define ONE 385
#define OLT 386
#define OGT 387
#define OLE 388
#define OGE 389
#define ORD 390
#define UNO 391
#define UEQ 392
#define UNE 393
#define CAST 394
#define TRUNC 395
#define ZEXT 396
#define SEXT 397
#define FPTRUNC 398
#define FPEXT 399
#define FPTOUI 400
#define FPTOSI 401
#define UITOFP 402
#define SITOFP 403
#define PTRTOINT 404
#define INTTOPTR 405
#define BITCAST 406
/* Copy the first part of user declarations. */
#line 14 "/proj/llvm/llvm-20/tools/llvm-upgrade/UpgradeParser.y"
#include "UpgradeInternals.h"
#include "llvm/CallingConv.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/ParameterAttributes.h"
#include "llvm/ValueSymbolTable.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/MathExtras.h"
#include <algorithm>
#include <iostream>
#include <map>
#include <list>
#include <utility>
// DEBUG_UPREFS - Define this symbol if you want to enable debugging output
// relating to upreferences in the input stream.
//
//#define DEBUG_UPREFS 1
#ifdef DEBUG_UPREFS
#define UR_OUT(X) std::cerr << X
#else
#define UR_OUT(X)
#endif
#define YYERROR_VERBOSE 1
#define YYINCLUDED_STDLIB_H
#define YYDEBUG 1
int yylex();
int yyparse();
int yyerror(const char*);
static void warning(const std::string& WarningMsg);
namespace llvm {
std::istream* LexInput;
static std::string CurFilename;
// This bool controls whether attributes are ever added to function declarations
// definitions and calls.
static bool AddAttributes = false;
static Module *ParserResult;
static bool ObsoleteVarArgs;
static bool NewVarArgs;
static BasicBlock *CurBB;
static GlobalVariable *CurGV;
static unsigned lastCallingConv;
// This contains info used when building the body of a function. It is
// destroyed when the function is completed.
//
typedef std::vector<Value *> ValueList; // Numbered defs
typedef std::pair<std::string,TypeInfo> RenameMapKey;
typedef std::map<RenameMapKey,std::string> RenameMapType;
static void
ResolveDefinitions(std::map<const Type *,ValueList> &LateResolvers,
std::map<const Type *,ValueList> *FutureLateResolvers = 0);
static struct PerModuleInfo {
Module *CurrentModule;
std::map<const Type *, ValueList> Values; // Module level numbered definitions
std::map<const Type *,ValueList> LateResolveValues;
std::vector<PATypeHolder> Types;
std::vector<Signedness> TypeSigns;
std::map<std::string,Signedness> NamedTypeSigns;
std::map<std::string,Signedness> NamedValueSigns;
std::map<ValID, PATypeHolder> LateResolveTypes;
static Module::Endianness Endian;
static Module::PointerSize PointerSize;
RenameMapType RenameMap;
/// PlaceHolderInfo - When temporary placeholder objects are created, remember
/// how they were referenced and on which line of the input they came from so
/// that we can resolve them later and print error messages as appropriate.
std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
// GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
// references to global values. Global values may be referenced before they
// are defined, and if so, the temporary object that they represent is held
// here. This is used for forward references of GlobalValues.
//
typedef std::map<std::pair<const PointerType *, ValID>, GlobalValue*>
GlobalRefsType;
GlobalRefsType GlobalRefs;
void ModuleDone() {
// If we could not resolve some functions at function compilation time
// (calls to functions before they are defined), resolve them now... Types
// are resolved when the constant pool has been completely parsed.
//
ResolveDefinitions(LateResolveValues);
// Check to make sure that all global value forward references have been
// resolved!
//
if (!GlobalRefs.empty()) {
std::string UndefinedReferences = "Unresolved global references exist:\n";
for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
I != E; ++I) {
UndefinedReferences += " " + I->first.first->getDescription() + " " +
I->first.second.getName() + "\n";
}
error(UndefinedReferences);
return;
}
if (CurrentModule->getDataLayout().empty()) {
std::string dataLayout;
if (Endian != Module::AnyEndianness)
dataLayout.append(Endian == Module::BigEndian ? "E" : "e");
if (PointerSize != Module::AnyPointerSize) {
if (!dataLayout.empty())
dataLayout += "-";
dataLayout.append(PointerSize == Module::Pointer64 ?
"p:64:64" : "p:32:32");
}
CurrentModule->setDataLayout(dataLayout);
}
Values.clear(); // Clear out function local definitions
Types.clear();
TypeSigns.clear();
NamedTypeSigns.clear();
NamedValueSigns.clear();
CurrentModule = 0;
}
// GetForwardRefForGlobal - Check to see if there is a forward reference
// for this global. If so, remove it from the GlobalRefs map and return it.
// If not, just return null.
GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
// Check to see if there is a forward reference to this global variable...
// if there is, eliminate it and patch the reference to use the new def'n.
GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
GlobalValue *Ret = 0;
if (I != GlobalRefs.end()) {
Ret = I->second;
GlobalRefs.erase(I);
}
return Ret;
}
void setEndianness(Module::Endianness E) { Endian = E; }
void setPointerSize(Module::PointerSize sz) { PointerSize = sz; }
} CurModule;
Module::Endianness PerModuleInfo::Endian = Module::AnyEndianness;
Module::PointerSize PerModuleInfo::PointerSize = Module::AnyPointerSize;
static struct PerFunctionInfo {
Function *CurrentFunction; // Pointer to current function being created
std::map<const Type*, ValueList> Values; // Keep track of #'d definitions
std::map<const Type*, ValueList> LateResolveValues;
bool isDeclare; // Is this function a forward declararation?
GlobalValue::LinkageTypes Linkage;// Linkage for forward declaration.
/// BBForwardRefs - When we see forward references to basic blocks, keep
/// track of them here.
std::map<BasicBlock*, std::pair<ValID, int> > BBForwardRefs;
std::vector<BasicBlock*> NumberedBlocks;
RenameMapType RenameMap;
unsigned NextBBNum;
inline PerFunctionInfo() {
CurrentFunction = 0;
isDeclare = false;
Linkage = GlobalValue::ExternalLinkage;
}
inline void FunctionStart(Function *M) {
CurrentFunction = M;
NextBBNum = 0;
}
void FunctionDone() {
NumberedBlocks.clear();
// Any forward referenced blocks left?
if (!BBForwardRefs.empty()) {
error("Undefined reference to label " +
BBForwardRefs.begin()->first->getName());
return;
}
// Resolve all forward references now.
ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
Values.clear(); // Clear out function local definitions
RenameMap.clear();
CurrentFunction = 0;
isDeclare = false;
Linkage = GlobalValue::ExternalLinkage;
}
} CurFun; // Info for the current function...
static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
/// This function is just a utility to make a Key value for the rename map.
/// The Key is a combination of the name, type, Signedness of the original
/// value (global/function). This just constructs the key and ensures that
/// named Signedness values are resolved to the actual Signedness.
/// @brief Make a key for the RenameMaps
static RenameMapKey makeRenameMapKey(const std::string &Name, const Type* Ty,
const Signedness &Sign) {
TypeInfo TI;
TI.T = Ty;
if (Sign.isNamed())
// Don't allow Named Signedness nodes because they won't match. The actual
// Signedness must be looked up in the NamedTypeSigns map.
TI.S.copy(CurModule.NamedTypeSigns[Sign.getName()]);
else
TI.S.copy(Sign);
return std::make_pair(Name, TI);
}
//===----------------------------------------------------------------------===//
// Code to handle definitions of all the types
//===----------------------------------------------------------------------===//
static int InsertValue(Value *V,
std::map<const Type*,ValueList> &ValueTab = CurFun.Values) {
if (V->hasName()) return -1; // Is this a numbered definition?
// Yes, insert the value into the value table...
ValueList &List = ValueTab[V->getType()];
List.push_back(V);
return List.size()-1;
}
static const Type *getType(const ValID &D, bool DoNotImprovise = false) {
switch (D.Type) {
case ValID::NumberVal: // Is it a numbered definition?
// Module constants occupy the lowest numbered slots...
if ((unsigned)D.Num < CurModule.Types.size()) {
return CurModule.Types[(unsigned)D.Num];
}
break;
case ValID::NameVal: // Is it a named definition?
if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
return N;
}
break;
default:
error("Internal parser error: Invalid symbol type reference");
return 0;
}
// If we reached here, we referenced either a symbol that we don't know about
// or an id number that hasn't been read yet. We may be referencing something
// forward, so just create an entry to be resolved later and get to it...
//
if (DoNotImprovise) return 0; // Do we just want a null to be returned?
if (inFunctionScope()) {
if (D.Type == ValID::NameVal) {
error("Reference to an undefined type: '" + D.getName() + "'");
return 0;
} else {
error("Reference to an undefined type: #" + itostr(D.Num));
return 0;
}
}
std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
if (I != CurModule.LateResolveTypes.end())
return I->second;
Type *Typ = OpaqueType::get();
CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
return Typ;
}
/// This is like the getType method except that instead of looking up the type
/// for a given ID, it looks up that type's sign.
/// @brief Get the signedness of a referenced type
static Signedness getTypeSign(const ValID &D) {
switch (D.Type) {
case ValID::NumberVal: // Is it a numbered definition?
// Module constants occupy the lowest numbered slots...
if ((unsigned)D.Num < CurModule.TypeSigns.size()) {
return CurModule.TypeSigns[(unsigned)D.Num];
}
break;
case ValID::NameVal: { // Is it a named definition?
std::map<std::string,Signedness>::const_iterator I =
CurModule.NamedTypeSigns.find(D.Name);
if (I != CurModule.NamedTypeSigns.end())
return I->second;
// Perhaps its a named forward .. just cache the name
Signedness S;
S.makeNamed(D.Name);
return S;
}
default:
break;
}
// If we don't find it, its signless
Signedness S;
S.makeSignless();
return S;
}
/// This function is analagous to getElementType in LLVM. It provides the same
/// function except that it looks up the Signedness instead of the type. This is
/// used when processing GEP instructions that need to extract the type of an
/// indexed struct/array/ptr member.
/// @brief Look up an element's sign.
static Signedness getElementSign(const ValueInfo& VI,
const std::vector<Value*> &Indices) {
const Type *Ptr = VI.V->getType();
assert(isa<PointerType>(Ptr) && "Need pointer type");
unsigned CurIdx = 0;
Signedness S(VI.S);
while (const CompositeType *CT = dyn_cast<CompositeType>(Ptr)) {
if (CurIdx == Indices.size())
break;
Value *Index = Indices[CurIdx++];
assert(!isa<PointerType>(CT) || CurIdx == 1 && "Invalid type");
Ptr = CT->getTypeAtIndex(Index);
if (const Type* Ty = Ptr->getForwardedType())
Ptr = Ty;
assert(S.isComposite() && "Bad Signedness type");
if (isa<StructType>(CT)) {
S = S.get(cast<ConstantInt>(Index)->getZExtValue());
} else {
S = S.get(0UL);
}
if (S.isNamed())
S = CurModule.NamedTypeSigns[S.getName()];
}
Signedness Result;
Result.makeComposite(S);
return Result;
}
/// This function just translates a ConstantInfo into a ValueInfo and calls
/// getElementSign(ValueInfo,...). Its just a convenience.
/// @brief ConstantInfo version of getElementSign.
static Signedness getElementSign(const ConstInfo& CI,
const std::vector<Constant*> &Indices) {
ValueInfo VI;
VI.V = CI.C;
VI.S.copy(CI.S);
std::vector<Value*> Idx;
for (unsigned i = 0; i < Indices.size(); ++i)
Idx.push_back(Indices[i]);
Signedness result = getElementSign(VI, Idx);
VI.destroy();
return result;
}
/// This function determines if two function types differ only in their use of
/// the sret parameter attribute in the first argument. If they are identical
/// in all other respects, it returns true. Otherwise, it returns false.
static bool FuncTysDifferOnlyBySRet(const FunctionType *F1,
const FunctionType *F2) {
if (F1->getReturnType() != F2->getReturnType() ||
F1->getNumParams() != F2->getNumParams())
return false;
const ParamAttrsList *PAL1 = F1->getParamAttrs();
const ParamAttrsList *PAL2 = F2->getParamAttrs();
if (PAL1 && !PAL2 || PAL2 && !PAL1)
return false;
if (PAL1 && PAL2 && ((PAL1->size() != PAL2->size()) ||
(PAL1->getParamAttrs(0) != PAL2->getParamAttrs(0))))
return false;
unsigned SRetMask = ~unsigned(ParamAttr::StructRet);
for (unsigned i = 0; i < F1->getNumParams(); ++i) {
if (F1->getParamType(i) != F2->getParamType(i) || (PAL1 && PAL2 &&
(unsigned(PAL1->getParamAttrs(i+1)) & SRetMask !=
unsigned(PAL2->getParamAttrs(i+1)) & SRetMask)))
return false;
}
return true;
}
/// This function determines if the type of V and Ty differ only by the SRet
/// parameter attribute. This is a more generalized case of
/// FuncTysDIfferOnlyBySRet since it doesn't require FunctionType arguments.
static bool TypesDifferOnlyBySRet(Value *V, const Type* Ty) {
if (V->getType() == Ty)
return true;
const PointerType *PF1 = dyn_cast<PointerType>(Ty);
const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
if (PF1 && PF2) {
const FunctionType* FT1 = dyn_cast<FunctionType>(PF1->getElementType());
const FunctionType* FT2 = dyn_cast<FunctionType>(PF2->getElementType());
if (FT1 && FT2)
return FuncTysDifferOnlyBySRet(FT1, FT2);
}
return false;
}
// The upgrade of csretcc to sret param attribute may have caused a function
// to not be found because the param attribute changed the type of the called
// function. This helper function, used in getExistingValue, detects that
// situation and bitcasts the function to the correct type.
static Value* handleSRetFuncTypeMerge(Value *V, const Type* Ty) {
// Handle degenerate cases
if (!V)
return 0;
if (V->getType() == Ty)
return V;
const PointerType *PF1 = dyn_cast<PointerType>(Ty);
const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
if (PF1 && PF2) {
const FunctionType *FT1 = dyn_cast<FunctionType>(PF1->getElementType());
const FunctionType *FT2 = dyn_cast<FunctionType>(PF2->getElementType());
if (FT1 && FT2 && FuncTysDifferOnlyBySRet(FT1, FT2)) {
const ParamAttrsList *PAL2 = FT2->getParamAttrs();
if (PAL2 && PAL2->paramHasAttr(1, ParamAttr::StructRet))
return V;
else if (Constant *C = dyn_cast<Constant>(V))
return ConstantExpr::getBitCast(C, PF1);
else
return new BitCastInst(V, PF1, "upgrd.cast", CurBB);
}
}
return 0;
}
// getExistingValue - Look up the value specified by the provided type and
// the provided ValID. If the value exists and has already been defined, return
// it. Otherwise return null.
//
static Value *getExistingValue(const Type *Ty, const ValID &D) {
if (isa<FunctionType>(Ty)) {
error("Functions are not values and must be referenced as pointers");
}
switch (D.Type) {
case ValID::NumberVal: { // Is it a numbered definition?
unsigned Num = (unsigned)D.Num;
// Module constants occupy the lowest numbered slots...
std::map<const Type*,ValueList>::iterator VI = CurModule.Values.find(Ty);
if (VI != CurModule.Values.end()) {
if (Num < VI->second.size())
return VI->second[Num];
Num -= VI->second.size();
}
// Make sure that our type is within bounds
VI = CurFun.Values.find(Ty);
if (VI == CurFun.Values.end()) return 0;
// Check that the number is within bounds...
if (VI->second.size() <= Num) return 0;
return VI->second[Num];
}
case ValID::NameVal: { // Is it a named definition?
// Get the name out of the ID
RenameMapKey Key = makeRenameMapKey(D.Name, Ty, D.S);
Value *V = 0;
if (inFunctionScope()) {
// See if the name was renamed
RenameMapType::const_iterator I = CurFun.RenameMap.find(Key);
std::string LookupName;
if (I != CurFun.RenameMap.end())
LookupName = I->second;
else
LookupName = D.Name;
ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
V = SymTab.lookup(LookupName);
if (V && V->getType() != Ty)
V = handleSRetFuncTypeMerge(V, Ty);
assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
}
if (!V) {
RenameMapType::const_iterator I = CurModule.RenameMap.find(Key);
std::string LookupName;
if (I != CurModule.RenameMap.end())
LookupName = I->second;
else
LookupName = D.Name;
V = CurModule.CurrentModule->getValueSymbolTable().lookup(LookupName);
if (V && V->getType() != Ty)
V = handleSRetFuncTypeMerge(V, Ty);
assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
}
if (!V)
return 0;
D.destroy(); // Free old strdup'd memory...
return V;
}
// Check to make sure that "Ty" is an integral type, and that our
// value will fit into the specified type...
case ValID::ConstSIntVal: // Is it a constant pool reference??
if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
error("Signed integral constant '" + itostr(D.ConstPool64) +
"' is invalid for type '" + Ty->getDescription() + "'");
}
return ConstantInt::get(Ty, D.ConstPool64);
case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64))
error("Integral constant '" + utostr(D.UConstPool64) +
"' is invalid or out of range");
else // This is really a signed reference. Transmogrify.
return ConstantInt::get(Ty, D.ConstPool64);
} else
return ConstantInt::get(Ty, D.UConstPool64);
case ValID::ConstFPVal: // Is it a floating point const pool reference?
if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP))
error("FP constant invalid for type");
return ConstantFP::get(Ty, D.ConstPoolFP);
case ValID::ConstNullVal: // Is it a null value?
if (!isa<PointerType>(Ty))
error("Cannot create a a non pointer null");
return ConstantPointerNull::get(cast<PointerType>(Ty));
case ValID::ConstUndefVal: // Is it an undef value?
return UndefValue::get(Ty);
case ValID::ConstZeroVal: // Is it a zero value?
return Constant::getNullValue(Ty);
case ValID::ConstantVal: // Fully resolved constant?
if (D.ConstantValue->getType() != Ty)
error("Constant expression type different from required type");
return D.ConstantValue;
case ValID::InlineAsmVal: { // Inline asm expression
const PointerType *PTy = dyn_cast<PointerType>(Ty);
const FunctionType *FTy =
PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints))
error("Invalid type for asm constraint string");
InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
D.IAD->HasSideEffects);
D.destroy(); // Free InlineAsmDescriptor.
return IA;
}
default:
assert(0 && "Unhandled case");
return 0;
} // End of switch
assert(0 && "Unhandled case");
return 0;
}
// getVal - This function is identical to getExistingValue, except that if a
// value is not already defined, it "improvises" by creating a placeholder var
// that looks and acts just like the requested variable. When the value is
// defined later, all uses of the placeholder variable are replaced with the
// real thing.
//
static Value *getVal(const Type *Ty, const ValID &ID) {
if (Ty == Type::LabelTy)
error("Cannot use a basic block here");
// See if the value has already been defined.
Value *V = getExistingValue(Ty, ID);
if (V) return V;
if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty))
error("Invalid use of a composite type");
// If we reached here, we referenced either a symbol that we don't know about
// or an id number that hasn't been read yet. We may be referencing something
// forward, so just create an entry to be resolved later and get to it...
V = new Argument(Ty);
// Remember where this forward reference came from. FIXME, shouldn't we try
// to recycle these things??
CurModule.PlaceHolderInfo.insert(
std::make_pair(V, std::make_pair(ID, Upgradelineno)));
if (inFunctionScope())
InsertValue(V, CurFun.LateResolveValues);
else
InsertValue(V, CurModule.LateResolveValues);
return V;
}
/// @brief This just makes any name given to it unique, up to MAX_UINT times.
static std::string makeNameUnique(const std::string& Name) {
static unsigned UniqueNameCounter = 1;
std::string Result(Name);
Result += ".upgrd." + llvm::utostr(UniqueNameCounter++);
return Result;
}
/// getBBVal - This is used for two purposes:
/// * If isDefinition is true, a new basic block with the specified ID is being
/// defined.
/// * If isDefinition is true, this is a reference to a basic block, which may
/// or may not be a forward reference.
///
static BasicBlock *getBBVal(const ValID &ID, bool isDefinition = false) {
assert(inFunctionScope() && "Can't get basic block at global scope");
std::string Name;
BasicBlock *BB = 0;
switch (ID.Type) {
default:
error("Illegal label reference " + ID.getName());
break;
case ValID::NumberVal: // Is it a numbered definition?
if (unsigned(ID.Num) >= CurFun.NumberedBlocks.size())
CurFun.NumberedBlocks.resize(ID.Num+1);
BB = CurFun.NumberedBlocks[ID.Num];
break;
case ValID::NameVal: // Is it a named definition?
Name = ID.Name;
if (Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name)) {
if (N->getType() != Type::LabelTy) {
// Register names didn't use to conflict with basic block names
// because of type planes. Now they all have to be unique. So, we just
// rename the register and treat this name as if no basic block
// had been found.
RenameMapKey Key = makeRenameMapKey(ID.Name, N->getType(), ID.S);
N->setName(makeNameUnique(N->getName()));
CurModule.RenameMap[Key] = N->getName();
BB = 0;
} else {
BB = cast<BasicBlock>(N);
}
}
break;
}
// See if the block has already been defined.
if (BB) {
// If this is the definition of the block, make sure the existing value was
// just a forward reference. If it was a forward reference, there will be
// an entry for it in the PlaceHolderInfo map.
if (isDefinition && !CurFun.BBForwardRefs.erase(BB))
// The existing value was a definition, not a forward reference.
error("Redefinition of label " + ID.getName());
ID.destroy(); // Free strdup'd memory.
return BB;
}
// Otherwise this block has not been seen before.
BB = new BasicBlock("", CurFun.CurrentFunction);
if (ID.Type == ValID::NameVal) {
BB->setName(ID.Name);
} else {
CurFun.NumberedBlocks[ID.Num] = BB;
}
// If this is not a definition, keep track of it so we can use it as a forward
// reference.
if (!isDefinition) {
// Remember where this forward reference came from.
CurFun.BBForwardRefs[BB] = std::make_pair(ID, Upgradelineno);
} else {
// The forward declaration could have been inserted anywhere in the
// function: insert it into the correct place now.
CurFun.CurrentFunction->getBasicBlockList().remove(BB);
CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
}
ID.destroy();
return BB;
}
//===----------------------------------------------------------------------===//
// Code to handle forward references in instructions
//===----------------------------------------------------------------------===//
//
// This code handles the late binding needed with statements that reference
// values not defined yet... for example, a forward branch, or the PHI node for
// a loop body.
//
// This keeps a table (CurFun.LateResolveValues) of all such forward references
// and back patchs after we are done.
//
// ResolveDefinitions - If we could not resolve some defs at parsing
// time (forward branches, phi functions for loops, etc...) resolve the
// defs now...
//
static void
ResolveDefinitions(std::map<const Type*,ValueList> &LateResolvers,
std::map<const Type*,ValueList> *FutureLateResolvers) {
// Loop over LateResolveDefs fixing up stuff that couldn't be resolved
for (std::map<const Type*,ValueList>::iterator LRI = LateResolvers.begin(),
E = LateResolvers.end(); LRI != E; ++LRI) {
const Type* Ty = LRI->first;
ValueList &List = LRI->second;
while (!List.empty()) {
Value *V = List.back();
List.pop_back();
std::map<Value*, std::pair<ValID, int> >::iterator PHI =
CurModule.PlaceHolderInfo.find(V);
assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error");
ValID &DID = PHI->second.first;
Value *TheRealValue = getExistingValue(Ty, DID);
if (TheRealValue) {
V->replaceAllUsesWith(TheRealValue);
delete V;
CurModule.PlaceHolderInfo.erase(PHI);
} else if (FutureLateResolvers) {
// Functions have their unresolved items forwarded to the module late
// resolver table
InsertValue(V, *FutureLateResolvers);
} else {
if (DID.Type == ValID::NameVal) {
error("Reference to an invalid definition: '" + DID.getName() +
"' of type '" + V->getType()->getDescription() + "'",
PHI->second.second);
return;
} else {
error("Reference to an invalid definition: #" +
itostr(DID.Num) + " of type '" +
V->getType()->getDescription() + "'", PHI->second.second);
return;
}
}
}
}
LateResolvers.clear();
}
/// This function is used for type resolution and upref handling. When a type
/// becomes concrete, this function is called to adjust the signedness for the
/// concrete type.
static void ResolveTypeSign(const Type* oldTy, const Signedness &Sign) {
std::string TyName = CurModule.CurrentModule->getTypeName(oldTy);
if (!TyName.empty())
CurModule.NamedTypeSigns[TyName] = Sign;
}
/// ResolveTypeTo - A brand new type was just declared. This means that (if
/// name is not null) things referencing Name can be resolved. Otherwise,
/// things refering to the number can be resolved. Do this now.
static void ResolveTypeTo(char *Name, const Type *ToTy, const Signedness& Sign){
ValID D;
if (Name)
D = ValID::create(Name);
else
D = ValID::create((int)CurModule.Types.size());
D.S.copy(Sign);
if (Name)
CurModule.NamedTypeSigns[Name] = Sign;
std::map<ValID, PATypeHolder>::iterator I =
CurModule.LateResolveTypes.find(D);
if (I != CurModule.LateResolveTypes.end()) {
const Type *OldTy = I->second.get();
((DerivedType*)OldTy)->refineAbstractTypeTo(ToTy);
CurModule.LateResolveTypes.erase(I);
}
}
/// This is the implementation portion of TypeHasInteger. It traverses the
/// type given, avoiding recursive types, and returns true as soon as it finds
/// an integer type. If no integer type is found, it returns false.
static bool TypeHasIntegerI(const Type *Ty, std::vector<const Type*> Stack) {
// Handle some easy cases
if (Ty->isPrimitiveType() || (Ty->getTypeID() == Type::OpaqueTyID))
return false;
if (Ty->isInteger())
return true;
if (const SequentialType *STy = dyn_cast<SequentialType>(Ty))
return STy->getElementType()->isInteger();
// Avoid type structure recursion
for (std::vector<const Type*>::iterator I = Stack.begin(), E = Stack.end();
I != E; ++I)
if (Ty == *I)
return false;
// Push us on the type stack
Stack.push_back(Ty);
if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
if (TypeHasIntegerI(FTy->getReturnType(), Stack))
return true;
FunctionType::param_iterator I = FTy->param_begin();
FunctionType::param_iterator E = FTy->param_end();
for (; I != E; ++I)
if (TypeHasIntegerI(*I, Stack))
return true;
return false;
} else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
StructType::element_iterator I = STy->element_begin();
StructType::element_iterator E = STy->element_end();
for (; I != E; ++I) {
if (TypeHasIntegerI(*I, Stack))
return true;
}
return false;
}
// There shouldn't be anything else, but its definitely not integer
assert(0 && "What type is this?");
return false;
}
/// This is the interface to TypeHasIntegerI. It just provides the type stack,
/// to avoid recursion, and then calls TypeHasIntegerI.
static inline bool TypeHasInteger(const Type *Ty) {
std::vector<const Type*> TyStack;
return TypeHasIntegerI(Ty, TyStack);
}
// setValueName - Set the specified value to the name given. The name may be
// null potentially, in which case this is a noop. The string passed in is
// assumed to be a malloc'd string buffer, and is free'd by this function.
//
static void setValueName(const ValueInfo &V, char *NameStr) {
if (NameStr) {
std::string Name(NameStr); // Copy string
free(NameStr); // Free old string
if (V.V->getType() == Type::VoidTy) {
error("Can't assign name '" + Name + "' to value with void type");
return;
}
assert(inFunctionScope() && "Must be in function scope");
// Search the function's symbol table for an existing value of this name
ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
Value* Existing = ST.lookup(Name);
if (Existing) {
// An existing value of the same name was found. This might have happened
// because of the integer type planes collapsing in LLVM 2.0.
if (Existing->getType() == V.V->getType() &&
!TypeHasInteger(Existing->getType())) {
// If the type does not contain any integers in them then this can't be
// a type plane collapsing issue. It truly is a redefinition and we
// should error out as the assembly is invalid.
error("Redefinition of value named '" + Name + "' of type '" +
V.V->getType()->getDescription() + "'");
return;
}
// In LLVM 2.0 we don't allow names to be re-used for any values in a
// function, regardless of Type. Previously re-use of names was okay as
// long as they were distinct types. With type planes collapsing because
// of the signedness change and because of PR411, this can no longer be
// supported. We must search the entire symbol table for a conflicting
// name and make the name unique. No warning is needed as this can't
// cause a problem.
std::string NewName = makeNameUnique(Name);
// We're changing the name but it will probably be used by other
// instructions as operands later on. Consequently we have to retain
// a mapping of the renaming that we're doing.
RenameMapKey Key = makeRenameMapKey(Name, V.V->getType(), V.S);
CurFun.RenameMap[Key] = NewName;
Name = NewName;
}
// Set the name.
V.V->setName(Name);
}
}
/// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
/// this is a declaration, otherwise it is a definition.
static GlobalVariable *
ParseGlobalVariable(char *NameStr,GlobalValue::LinkageTypes Linkage,
bool isConstantGlobal, const Type *Ty,
Constant *Initializer,
const Signedness &Sign) {
if (isa<FunctionType>(Ty))
error("Cannot declare global vars of function type");
const PointerType *PTy = PointerType::get(Ty);
std::string Name;
if (NameStr) {
Name = NameStr; // Copy string
free(NameStr); // Free old string
}
// See if this global value was forward referenced. If so, recycle the
// object.
ValID ID;
if (!Name.empty()) {
ID = ValID::create((char*)Name.c_str());
} else {
ID = ValID::create((int)CurModule.Values[PTy].size());
}
ID.S.makeComposite(Sign);
if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
// Move the global to the end of the list, from whereever it was
// previously inserted.
GlobalVariable *GV = cast<GlobalVariable>(FWGV);
CurModule.CurrentModule->getGlobalList().remove(GV);
CurModule.CurrentModule->getGlobalList().push_back(GV);
GV->setInitializer(Initializer);
GV->setLinkage(Linkage);
GV->setConstant(isConstantGlobal);
InsertValue(GV, CurModule.Values);
return GV;
}
// If this global has a name, check to see if there is already a definition
// of this global in the module and emit warnings if there are conflicts.
if (!Name.empty()) {
// The global has a name. See if there's an existing one of the same name.
if (CurModule.CurrentModule->getNamedGlobal(Name) ||
CurModule.CurrentModule->getFunction(Name)) {
// We found an existing global of the same name. This isn't allowed
// in LLVM 2.0. Consequently, we must alter the name of the global so it
// can at least compile. This can happen because of type planes
// There is alread a global of the same name which means there is a
// conflict. Let's see what we can do about it.
std::string NewName(makeNameUnique(Name));
if (Linkage != GlobalValue::InternalLinkage) {
// The linkage of this gval is external so we can't reliably rename
// it because it could potentially create a linking problem.
// However, we can't leave the name conflict in the output either or
// it won't assemble with LLVM 2.0. So, all we can do is rename
// this one to something unique and emit a warning about the problem.
warning("Renaming global variable '" + Name + "' to '" + NewName +
"' may cause linkage errors");
}
// Put the renaming in the global rename map
RenameMapKey Key = makeRenameMapKey(Name, PointerType::get(Ty), ID.S);
CurModule.RenameMap[Key] = NewName;
// Rename it
Name = NewName;
}
}
// Otherwise there is no existing GV to use, create one now.
GlobalVariable *GV =
new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
CurModule.CurrentModule);
InsertValue(GV, CurModule.Values);
// Remember the sign of this global.
CurModule.NamedValueSigns[Name] = ID.S;
return GV;
}
// setTypeName - Set the specified type to the name given. The name may be
// null potentially, in which case this is a noop. The string passed in is
// assumed to be a malloc'd string buffer, and is freed by this function.
//
// This function returns true if the type has already been defined, but is
// allowed to be redefined in the specified context. If the name is a new name
// for the type plane, it is inserted and false is returned.
static bool setTypeName(const PATypeInfo& TI, char *NameStr) {
assert(!inFunctionScope() && "Can't give types function-local names");
if (NameStr == 0) return false;
std::string Name(NameStr); // Copy string
free(NameStr); // Free old string
const Type* Ty = TI.PAT->get();
// We don't allow assigning names to void type
if (Ty == Type::VoidTy) {
error("Can't assign name '" + Name + "' to the void type");
return false;
}
// Set the type name, checking for conflicts as we do so.
bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, Ty);
// Save the sign information for later use
CurModule.NamedTypeSigns[Name] = TI.S;
if (AlreadyExists) { // Inserting a name that is already defined???
const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
assert(Existing && "Conflict but no matching type?");
// There is only one case where this is allowed: when we are refining an
// opaque type. In this case, Existing will be an opaque type.
if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
// We ARE replacing an opaque type!
const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(Ty);
return true;
}
// Otherwise, this is an attempt to redefine a type. That's okay if
// the redefinition is identical to the original. This will be so if
// Existing and T point to the same Type object. In this one case we
// allow the equivalent redefinition.
if (Existing == Ty) return true; // Yes, it's equal.
// Any other kind of (non-equivalent) redefinition is an error.
error("Redefinition of type named '" + Name + "' in the '" +
Ty->getDescription() + "' type plane");
}
return false;
}
//===----------------------------------------------------------------------===//
// Code for handling upreferences in type names...
//
// TypeContains - Returns true if Ty directly contains E in it.
//
static bool TypeContains(const Type *Ty, const Type *E) {
return std::find(Ty->subtype_begin(), Ty->subtype_end(),
E) != Ty->subtype_end();
}
namespace {
struct UpRefRecord {
// NestingLevel - The number of nesting levels that need to be popped before
// this type is resolved.
unsigned NestingLevel;
// LastContainedTy - This is the type at the current binding level for the
// type. Every time we reduce the nesting level, this gets updated.
const Type *LastContainedTy;
// UpRefTy - This is the actual opaque type that the upreference is
// represented with.
OpaqueType *UpRefTy;
UpRefRecord(unsigned NL, OpaqueType *URTy)
: NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) { }
};
}
// UpRefs - A list of the outstanding upreferences that need to be resolved.
static std::vector<UpRefRecord> UpRefs;
/// HandleUpRefs - Every time we finish a new layer of types, this function is
/// called. It loops through the UpRefs vector, which is a list of the
/// currently active types. For each type, if the up reference is contained in
/// the newly completed type, we decrement the level count. When the level
/// count reaches zero, the upreferenced type is the type that is passed in:
/// thus we can complete the cycle.
///
static PATypeHolder HandleUpRefs(const Type *ty, const Signedness& Sign) {
// If Ty isn't abstract, or if there are no up-references in it, then there is
// nothing to resolve here.
if (!ty->isAbstract() || UpRefs.empty()) return ty;
PATypeHolder Ty(ty);
UR_OUT("Type '" << Ty->getDescription() <<
"' newly formed. Resolving upreferences.\n" <<
UpRefs.size() << " upreferences active!\n");
// If we find any resolvable upreferences (i.e., those whose NestingLevel goes
// to zero), we resolve them all together before we resolve them to Ty. At
// the end of the loop, if there is anything to resolve to Ty, it will be in
// this variable.
OpaqueType *TypeToResolve = 0;
unsigned i = 0;
for (; i != UpRefs.size(); ++i) {
UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
<< UpRefs[i].UpRefTy->getDescription() << ") = "
<< (TypeContains(Ty, UpRefs[i].UpRefTy) ? "true" : "false") << "\n");
if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
// Decrement level of upreference
unsigned Level = --UpRefs[i].NestingLevel;
UpRefs[i].LastContainedTy = Ty;
UR_OUT(" Uplevel Ref Level = " << Level << "\n");
if (Level == 0) { // Upreference should be resolved!
if (!TypeToResolve) {
TypeToResolve = UpRefs[i].UpRefTy;
} else {
UR_OUT(" * Resolving upreference for "
<< UpRefs[i].UpRefTy->getDescription() << "\n";
std::string OldName = UpRefs[i].UpRefTy->getDescription());
ResolveTypeSign(UpRefs[i].UpRefTy, Sign);
UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
UR_OUT(" * Type '" << OldName << "' refined upreference to: "
<< (const void*)Ty << ", " << Ty->getDescription() << "\n");
}
UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
--i; // Do not skip the next element...
}
}
}
if (TypeToResolve) {
UR_OUT(" * Resolving upreference for "
<< UpRefs[i].UpRefTy->getDescription() << "\n";
std::string OldName = TypeToResolve->getDescription());
ResolveTypeSign(TypeToResolve, Sign);
TypeToResolve->refineAbstractTypeTo(Ty);
}
return Ty;
}
bool Signedness::operator<(const Signedness &that) const {
if (isNamed()) {
if (that.isNamed())
return *(this->name) < *(that.name);
else
return CurModule.NamedTypeSigns[*name] < that;
} else if (that.isNamed()) {
return *this < CurModule.NamedTypeSigns[*that.name];
}
if (isComposite() && that.isComposite()) {
if (sv->size() == that.sv->size()) {
SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
SignVector::const_iterator thatI = that.sv->begin(),
thatE = that.sv->end();
for (; thisI != thisE; ++thisI, ++thatI) {
if (*thisI < *thatI)
return true;
else if (!(*thisI == *thatI))
return false;
}
return false;
}
return sv->size() < that.sv->size();
}
return kind < that.kind;
}
bool Signedness::operator==(const Signedness &that) const {
if (isNamed())
if (that.isNamed())
return *(this->name) == *(that.name);
else
return CurModule.NamedTypeSigns[*(this->name)] == that;
else if (that.isNamed())
return *this == CurModule.NamedTypeSigns[*(that.name)];
if (isComposite() && that.isComposite()) {
if (sv->size() == that.sv->size()) {
SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
SignVector::const_iterator thatI = that.sv->begin(),
thatE = that.sv->end();
for (; thisI != thisE; ++thisI, ++thatI) {
if (!(*thisI == *thatI))
return false;
}
return true;
}
return false;
}
return kind == that.kind;
}
void Signedness::copy(const Signedness &that) {
if (that.isNamed()) {
kind = Named;
name = new std::string(*that.name);
} else if (that.isComposite()) {
kind = Composite;
sv = new SignVector();
*sv = *that.sv;
} else {
kind = that.kind;
sv = 0;
}
}
void Signedness::destroy() {
if (isNamed()) {
delete name;
} else if (isComposite()) {
delete sv;
}
}
#ifndef NDEBUG
void Signedness::dump() const {
if (isComposite()) {
if (sv->size() == 1) {
(*sv)[0].dump();
std::cerr << "*";
} else {
std::cerr << "{ " ;
for (unsigned i = 0; i < sv->size(); ++i) {
if (i != 0)
std::cerr << ", ";
(*sv)[i].dump();
}
std::cerr << "} " ;
}
} else if (isNamed()) {
std::cerr << *name;
} else if (isSigned()) {
std::cerr << "S";
} else if (isUnsigned()) {
std::cerr << "U";
} else
std::cerr << ".";
}
#endif
static inline Instruction::TermOps
getTermOp(TermOps op) {
switch (op) {
default : assert(0 && "Invalid OldTermOp");
case RetOp : return Instruction::Ret;
case BrOp : return Instruction::Br;
case SwitchOp : return Instruction::Switch;
case InvokeOp : return Instruction::Invoke;
case UnwindOp : return Instruction::Unwind;
case UnreachableOp: return Instruction::Unreachable;
}
}
static inline Instruction::BinaryOps
getBinaryOp(BinaryOps op, const Type *Ty, const Signedness& Sign) {
switch (op) {
default : assert(0 && "Invalid OldBinaryOps");
case SetEQ :
case SetNE :
case SetLE :
case SetGE :
case SetLT :
case SetGT : assert(0 && "Should use getCompareOp");
case AddOp : return Instruction::Add;
case SubOp : return Instruction::Sub;
case MulOp : return Instruction::Mul;
case DivOp : {
// This is an obsolete instruction so we must upgrade it based on the
// types of its operands.
bool isFP = Ty->isFloatingPoint();
if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
// If its a vector type we want to use the element type
isFP = PTy->getElementType()->isFloatingPoint();
if (isFP)
return Instruction::FDiv;
else if (Sign.isSigned())
return Instruction::SDiv;
return Instruction::UDiv;
}
case UDivOp : return Instruction::UDiv;
case SDivOp : return Instruction::SDiv;
case FDivOp : return Instruction::FDiv;
case RemOp : {
// This is an obsolete instruction so we must upgrade it based on the
// types of its operands.
bool isFP = Ty->isFloatingPoint();
if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
// If its a vector type we want to use the element type
isFP = PTy->getElementType()->isFloatingPoint();
// Select correct opcode
if (isFP)
return Instruction::FRem;
else if (Sign.isSigned())
return Instruction::SRem;
return Instruction::URem;
}
case URemOp : return Instruction::URem;
case SRemOp : return Instruction::SRem;
case FRemOp : return Instruction::FRem;
case LShrOp : return Instruction::LShr;
case AShrOp : return Instruction::AShr;
case ShlOp : return Instruction::Shl;
case ShrOp :
if (Sign.isSigned())
return Instruction::AShr;
return Instruction::LShr;
case AndOp : return Instruction::And;
case OrOp : return Instruction::Or;
case XorOp : return Instruction::Xor;
}
}
static inline Instruction::OtherOps
getCompareOp(BinaryOps op, unsigned short &predicate, const Type* &Ty,
const Signedness &Sign) {
bool isSigned = Sign.isSigned();
bool isFP = Ty->isFloatingPoint();
switch (op) {
default : assert(0 && "Invalid OldSetCC");
case SetEQ :
if (isFP) {
predicate = FCmpInst::FCMP_OEQ;
return Instruction::FCmp;
} else {
predicate = ICmpInst::ICMP_EQ;
return Instruction::ICmp;
}
case SetNE :
if (isFP) {
predicate = FCmpInst::FCMP_UNE;
return Instruction::FCmp;
} else {
predicate = ICmpInst::ICMP_NE;
return Instruction::ICmp;
}
case SetLE :
if (isFP) {
predicate = FCmpInst::FCMP_OLE;
return Instruction::FCmp;
} else {
if (isSigned)
predicate = ICmpInst::ICMP_SLE;
else
predicate = ICmpInst::ICMP_ULE;
return Instruction::ICmp;
}
case SetGE :
if (isFP) {
predicate = FCmpInst::FCMP_OGE;
return Instruction::FCmp;
} else {
if (isSigned)
predicate = ICmpInst::ICMP_SGE;
else
predicate = ICmpInst::ICMP_UGE;
return Instruction::ICmp;
}
case SetLT :
if (isFP) {
predicate = FCmpInst::FCMP_OLT;
return Instruction::FCmp;
} else {
if (isSigned)
predicate = ICmpInst::ICMP_SLT;
else
predicate = ICmpInst::ICMP_ULT;
return Instruction::ICmp;
}
case SetGT :
if (isFP) {
predicate = FCmpInst::FCMP_OGT;
return Instruction::FCmp;
} else {
if (isSigned)
predicate = ICmpInst::ICMP_SGT;
else
predicate = ICmpInst::ICMP_UGT;
return Instruction::ICmp;
}
}
}
static inline Instruction::MemoryOps getMemoryOp(MemoryOps op) {
switch (op) {
default : assert(0 && "Invalid OldMemoryOps");
case MallocOp : return Instruction::Malloc;
case FreeOp : return Instruction::Free;
case AllocaOp : return Instruction::Alloca;
case LoadOp : return Instruction::Load;
case StoreOp : return Instruction::Store;
case GetElementPtrOp : return Instruction::GetElementPtr;
}
}
static inline Instruction::OtherOps
getOtherOp(OtherOps op, const Signedness &Sign) {
switch (op) {
default : assert(0 && "Invalid OldOtherOps");
case PHIOp : return Instruction::PHI;
case CallOp : return Instruction::Call;
case SelectOp : return Instruction::Select;
case UserOp1 : return Instruction::UserOp1;
case UserOp2 : return Instruction::UserOp2;
case VAArg : return Instruction::VAArg;
case ExtractElementOp : return Instruction::ExtractElement;
case InsertElementOp : return Instruction::InsertElement;
case ShuffleVectorOp : return Instruction::ShuffleVector;
case ICmpOp : return Instruction::ICmp;
case FCmpOp : return Instruction::FCmp;
};
}
static inline Value*
getCast(CastOps op, Value *Src, const Signedness &SrcSign, const Type *DstTy,
const Signedness &DstSign, bool ForceInstruction = false) {
Instruction::CastOps Opcode;
const Type* SrcTy = Src->getType();
if (op == CastOp) {
if (SrcTy->isFloatingPoint() && isa<PointerType>(DstTy)) {
// fp -> ptr cast is no longer supported but we must upgrade this
// by doing a double cast: fp -> int -> ptr
SrcTy = Type::Int64Ty;
Opcode = Instruction::IntToPtr;
if (isa<Constant>(Src)) {
Src = ConstantExpr::getCast(Instruction::FPToUI,
cast<Constant>(Src), SrcTy);
} else {
std::string NewName(makeNameUnique(Src->getName()));
Src = new FPToUIInst(Src, SrcTy, NewName, CurBB);
}
} else if (isa<IntegerType>(DstTy) &&
cast<IntegerType>(DstTy)->getBitWidth() == 1) {
// cast type %x to bool was previously defined as setne type %x, null
// The cast semantic is now to truncate, not compare so we must retain
// the original intent by replacing the cast with a setne
Constant* Null = Constant::getNullValue(SrcTy);
Instruction::OtherOps Opcode = Instruction::ICmp;
unsigned short predicate = ICmpInst::ICMP_NE;
if (SrcTy->isFloatingPoint()) {
Opcode = Instruction::FCmp;
predicate = FCmpInst::FCMP_ONE;
} else if (!SrcTy->isInteger() && !isa<PointerType>(SrcTy)) {
error("Invalid cast to bool");
}
if (isa<Constant>(Src) && !ForceInstruction)
return ConstantExpr::getCompare(predicate, cast<Constant>(Src), Null);
else
return CmpInst::create(Opcode, predicate, Src, Null);
}
// Determine the opcode to use by calling CastInst::getCastOpcode
Opcode =
CastInst::getCastOpcode(Src, SrcSign.isSigned(), DstTy,
DstSign.isSigned());
} else switch (op) {
default: assert(0 && "Invalid cast token");
case TruncOp: Opcode = Instruction::Trunc; break;
case ZExtOp: Opcode = Instruction::ZExt; break;
case SExtOp: Opcode = Instruction::SExt; break;
case FPTruncOp: Opcode = Instruction::FPTrunc; break;
case FPExtOp: Opcode = Instruction::FPExt; break;
case FPToUIOp: Opcode = Instruction::FPToUI; break;
case FPToSIOp: Opcode = Instruction::FPToSI; break;
case UIToFPOp: Opcode = Instruction::UIToFP; break;
case SIToFPOp: Opcode = Instruction::SIToFP; break;
case PtrToIntOp: Opcode = Instruction::PtrToInt; break;
case IntToPtrOp: Opcode = Instruction::IntToPtr; break;
case BitCastOp: Opcode = Instruction::BitCast; break;
}
if (isa<Constant>(Src) && !ForceInstruction)
return ConstantExpr::getCast(Opcode, cast<Constant>(Src), DstTy);
return CastInst::create(Opcode, Src, DstTy);
}
static Instruction *
upgradeIntrinsicCall(const Type* RetTy, const ValID &ID,
std::vector<Value*>& Args) {
std::string Name = ID.Type == ValID::NameVal ? ID.Name : "";
if (Name.length() <= 5 || Name[0] != 'l' || Name[1] != 'l' ||
Name[2] != 'v' || Name[3] != 'm' || Name[4] != '.')
return 0;
switch (Name[5]) {
case 'i':
if (Name == "llvm.isunordered.f32" || Name == "llvm.isunordered.f64") {
if (Args.size() != 2)
error("Invalid prototype for " + Name);
return new FCmpInst(FCmpInst::FCMP_UNO, Args[0], Args[1]);
}
break;
case 'b':
if (Name.length() == 14 && !memcmp(&Name[5], "bswap.i", 7)) {
const Type* ArgTy = Args[0]->getType();
Name += ".i" + utostr(cast<IntegerType>(ArgTy)->getBitWidth());
Function *F = cast<Function>(
CurModule.CurrentModule->getOrInsertFunction(Name, RetTy, ArgTy,
(void*)0));
return new CallInst(F, Args[0]);
}
break;
case 'c':
if ((Name.length() <= 14 && !memcmp(&Name[5], "ctpop.i", 7)) ||
(Name.length() <= 13 && !memcmp(&Name[5], "ctlz.i", 6)) ||
(Name.length() <= 13 && !memcmp(&Name[5], "cttz.i", 6))) {
// These intrinsics changed their result type.
const Type* ArgTy = Args[0]->getType();
Function *OldF = CurModule.CurrentModule->getFunction(Name);
if (OldF)
OldF->setName("upgrd.rm." + Name);
Function *NewF = cast<Function>(
CurModule.CurrentModule->getOrInsertFunction(Name, Type::Int32Ty,
ArgTy, (void*)0));
Instruction *Call = new CallInst(NewF, Args[0], "", CurBB);
return CastInst::createIntegerCast(Call, RetTy, false);
}
break;
case 'v' : {
const Type* PtrTy = PointerType::get(Type::Int8Ty);
std::vector<const Type*> Params;
if (Name == "llvm.va_start" || Name == "llvm.va_end") {
if (Args.size() != 1)
error("Invalid prototype for " + Name + " prototype");
Params.push_back(PtrTy);
const FunctionType *FTy =
FunctionType::get(Type::VoidTy, Params, false);
const PointerType *PFTy = PointerType::get(FTy);
Value* Func = getVal(PFTy, ID);
Args[0] = new BitCastInst(Args[0], PtrTy, makeNameUnique("va"), CurBB);
return new CallInst(Func, &Args[0], Args.size());
} else if (Name == "llvm.va_copy") {
if (Args.size() != 2)
error("Invalid prototype for " + Name + " prototype");
Params.push_back(PtrTy);
Params.push_back(PtrTy);
const FunctionType *FTy =
FunctionType::get(Type::VoidTy, Params, false);
const PointerType *PFTy = PointerType::get(FTy);
Value* Func = getVal(PFTy, ID);
std::string InstName0(makeNameUnique("va0"));
std::string InstName1(makeNameUnique("va1"));
Args[0] = new BitCastInst(Args[0], PtrTy, InstName0, CurBB);
Args[1] = new BitCastInst(Args[1], PtrTy, InstName1, CurBB);
return new CallInst(Func, &Args[0], Args.size());
}
}
}
return 0;
}
const Type* upgradeGEPCEIndices(const Type* PTy,
std::vector<ValueInfo> *Indices,
std::vector<Constant*> &Result) {
const Type *Ty = PTy;
Result.clear();
for (unsigned i = 0, e = Indices->size(); i != e ; ++i) {
Constant *Index = cast<Constant>((*Indices)[i].V);
if (ConstantInt *CI = dyn_cast<ConstantInt>(Index)) {
// LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
// struct indices to i32 struct indices with ZExt for compatibility.
if (CI->getBitWidth() < 32)
Index = ConstantExpr::getCast(Instruction::ZExt, CI, Type::Int32Ty);
}
if (isa<SequentialType>(Ty)) {
// Make sure that unsigned SequentialType indices are zext'd to
// 64-bits if they were smaller than that because LLVM 2.0 will sext
// all indices for SequentialType elements. We must retain the same
// semantic (zext) for unsigned types.
if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType())) {
if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
Index = ConstantExpr::getCast(Instruction::ZExt, Index,Type::Int64Ty);
}
}
}
Result.push_back(Index);
Ty = GetElementPtrInst::getIndexedType(PTy, (Value**)&Result[0],
Result.size(),true);
if (!Ty)
error("Index list invalid for constant getelementptr");
}
return Ty;
}
const Type* upgradeGEPInstIndices(const Type* PTy,
std::vector<ValueInfo> *Indices,
std::vector<Value*> &Result) {
const Type *Ty = PTy;
Result.clear();
for (unsigned i = 0, e = Indices->size(); i != e ; ++i) {
Value *Index = (*Indices)[i].V;
if (ConstantInt *CI = dyn_cast<ConstantInt>(Index)) {
// LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
// struct indices to i32 struct indices with ZExt for compatibility.
if (CI->getBitWidth() < 32)
Index = ConstantExpr::getCast(Instruction::ZExt, CI, Type::Int32Ty);
}
if (isa<StructType>(Ty)) { // Only change struct indices
if (!isa<Constant>(Index)) {
error("Invalid non-constant structure index");
return 0;
}
} else {
// Make sure that unsigned SequentialType indices are zext'd to
// 64-bits if they were smaller than that because LLVM 2.0 will sext
// all indices for SequentialType elements. We must retain the same
// semantic (zext) for unsigned types.
if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType())) {
if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
if (isa<Constant>(Index))
Index = ConstantExpr::getCast(Instruction::ZExt,
cast<Constant>(Index), Type::Int64Ty);
else
Index = CastInst::create(Instruction::ZExt, Index, Type::Int64Ty,
makeNameUnique("gep"), CurBB);
}
}
}
Result.push_back(Index);
Ty = GetElementPtrInst::getIndexedType(PTy, &Result[0], Result.size(),true);
if (!Ty)
error("Index list invalid for constant getelementptr");
}
return Ty;
}
unsigned upgradeCallingConv(unsigned CC) {
switch (CC) {
case OldCallingConv::C : return CallingConv::C;
case OldCallingConv::CSRet : return CallingConv::C;
case OldCallingConv::Fast : return CallingConv::Fast;
case OldCallingConv::Cold : return CallingConv::Cold;
case OldCallingConv::X86_StdCall : return CallingConv::X86_StdCall;
case OldCallingConv::X86_FastCall: return CallingConv::X86_FastCall;
default:
return CC;
}
}
Module* UpgradeAssembly(const std::string &infile, std::istream& in,
bool debug, bool addAttrs)
{
Upgradelineno = 1;
CurFilename = infile;
LexInput = &in;
yydebug = debug;
AddAttributes = addAttrs;
ObsoleteVarArgs = false;
NewVarArgs = false;
CurModule.CurrentModule = new Module(CurFilename);
// Check to make sure the parser succeeded
if (yyparse()) {
if (ParserResult)
delete ParserResult;
std::cerr << "llvm-upgrade: parse failed.\n";
return 0;
}
// Check to make sure that parsing produced a result
if (!ParserResult) {
std::cerr << "llvm-upgrade: no parse result.\n";
return 0;
}
// Reset ParserResult variable while saving its value for the result.
Module *Result = ParserResult;
ParserResult = 0;
//Not all functions use vaarg, so make a second check for ObsoleteVarArgs
{
Function* F;
if ((F = Result->getFunction("llvm.va_start"))
&& F->getFunctionType()->getNumParams() == 0)
ObsoleteVarArgs = true;
if((F = Result->getFunction("llvm.va_copy"))
&& F->getFunctionType()->getNumParams() == 1)
ObsoleteVarArgs = true;
}
if (ObsoleteVarArgs && NewVarArgs) {
error("This file is corrupt: it uses both new and old style varargs");
return 0;
}
if(ObsoleteVarArgs) {
if(Function* F = Result->getFunction("llvm.va_start")) {
if (F->arg_size() != 0) {
error("Obsolete va_start takes 0 argument");
return 0;
}
//foo = va_start()
// ->
//bar = alloca typeof(foo)
//va_start(bar)
//foo = load bar
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
const Type* ArgTy = F->getFunctionType()->getReturnType();
const Type* ArgTyPtr = PointerType::get(ArgTy);
Function* NF = cast<Function>(Result->getOrInsertFunction(
"llvm.va_start", RetTy, ArgTyPtr, (Type *)0));
while (!F->use_empty()) {
CallInst* CI = cast<CallInst>(F->use_back());
AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
new CallInst(NF, bar, "", CI);
Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
CI->replaceAllUsesWith(foo);
CI->getParent()->getInstList().erase(CI);
}
Result->getFunctionList().erase(F);
}
if(Function* F = Result->getFunction("llvm.va_end")) {
if(F->arg_size() != 1) {
error("Obsolete va_end takes 1 argument");
return 0;
}
//vaend foo
// ->
//bar = alloca 1 of typeof(foo)
//vaend bar
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
const Type* ArgTy = F->getFunctionType()->getParamType(0);
const Type* ArgTyPtr = PointerType::get(ArgTy);
Function* NF = cast<Function>(Result->getOrInsertFunction(
"llvm.va_end", RetTy, ArgTyPtr, (Type *)0));
while (!F->use_empty()) {
CallInst* CI = cast<CallInst>(F->use_back());
AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
new StoreInst(CI->getOperand(1), bar, CI);
new CallInst(NF, bar, "", CI);
CI->getParent()->getInstList().erase(CI);
}
Result->getFunctionList().erase(F);
}
if(Function* F = Result->getFunction("llvm.va_copy")) {
if(F->arg_size() != 1) {
error("Obsolete va_copy takes 1 argument");
return 0;
}
//foo = vacopy(bar)
// ->
//a = alloca 1 of typeof(foo)
//b = alloca 1 of typeof(foo)
//store bar -> b
//vacopy(a, b)
//foo = load a
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
const Type* ArgTy = F->getFunctionType()->getReturnType();
const Type* ArgTyPtr = PointerType::get(ArgTy);
Function* NF = cast<Function>(Result->getOrInsertFunction(
"llvm.va_copy", RetTy, ArgTyPtr, ArgTyPtr, (Type *)0));
while (!F->use_empty()) {
CallInst* CI = cast<CallInst>(F->use_back());
AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
new StoreInst(CI->getOperand(1), b, CI);
new CallInst(NF, a, b, "", CI);
Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
CI->replaceAllUsesWith(foo);
CI->getParent()->getInstList().erase(CI);
}
Result->getFunctionList().erase(F);
}
}
return Result;
}
} // end llvm namespace
using namespace llvm;
/* Enabling traces. */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif
/* Enabling the token table. */
#ifndef YYTOKEN_TABLE
# define YYTOKEN_TABLE 0
#endif
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
#line 1775 "/proj/llvm/llvm-20/tools/llvm-upgrade/UpgradeParser.y"
typedef union YYSTYPE {
llvm::Module *ModuleVal;
llvm::Function *FunctionVal;
std::pair<llvm::PATypeInfo, char*> *ArgVal;
llvm::BasicBlock *BasicBlockVal;
llvm::TermInstInfo TermInstVal;
llvm::InstrInfo InstVal;
llvm::ConstInfo ConstVal;
llvm::ValueInfo ValueVal;
llvm::PATypeInfo TypeVal;
llvm::TypeInfo PrimType;
llvm::PHIListInfo PHIList;
std::list<llvm::PATypeInfo> *TypeList;
std::vector<llvm::ValueInfo> *ValueList;
std::vector<llvm::ConstInfo> *ConstVector;
std::vector<std::pair<llvm::PATypeInfo,char*> > *ArgList;
// Represent the RHS of PHI node
std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
llvm::GlobalValue::LinkageTypes Linkage;
int64_t SInt64Val;
uint64_t UInt64Val;
int SIntVal;
unsigned UIntVal;
double FPVal;
bool BoolVal;
char *StrVal; // This memory is strdup'd!
llvm::ValID ValIDVal; // strdup'd memory maybe!
llvm::BinaryOps BinaryOpVal;
llvm::TermOps TermOpVal;
llvm::MemoryOps MemOpVal;
llvm::OtherOps OtherOpVal;
llvm::CastOps CastOpVal;
llvm::ICmpInst::Predicate IPred;
llvm::FCmpInst::Predicate FPred;
llvm::Module::Endianness Endianness;
} YYSTYPE;
/* Line 196 of yacc.c. */
#line 2198 "UpgradeParser.tab.c"
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
/* Copy the second part of user declarations. */
/* Line 219 of yacc.c. */
#line 2210 "UpgradeParser.tab.c"
#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
# define YYSIZE_T __SIZE_TYPE__
#endif
#if ! defined (YYSIZE_T) && defined (size_t)
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T)
# define YYSIZE_T unsigned int
#endif
#ifndef YY_
# if YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
# endif
# endif
# ifndef YY_
# define YY_(msgid) msgid
# endif
#endif
#if ! defined (yyoverflow) || YYERROR_VERBOSE
/* The parser invokes alloca or malloc; define the necessary symbols. */
# ifdef YYSTACK_USE_ALLOCA
# if YYSTACK_USE_ALLOCA
# ifdef __GNUC__
# define YYSTACK_ALLOC __builtin_alloca
# else
# define YYSTACK_ALLOC alloca
# if defined (__STDC__) || defined (__cplusplus)
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
# define YYINCLUDED_STDLIB_H
# endif
# endif
# endif
# endif
# ifdef YYSTACK_ALLOC
/* Pacify GCC's `empty if-body' warning. */
# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# ifndef YYSTACK_ALLOC_MAXIMUM
/* The OS might guarantee only one guard page at the bottom of the stack,
and a page size can be as small as 4096 bytes. So we cannot safely
invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
to allow for a few compiler-allocated temporary stack slots. */
# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
# endif
# else
# define YYSTACK_ALLOC YYMALLOC
# define YYSTACK_FREE YYFREE
# ifndef YYSTACK_ALLOC_MAXIMUM
# define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1)
# endif
# ifdef __cplusplus
extern "C" {
# endif
# ifndef YYMALLOC
# define YYMALLOC malloc
# if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \
&& (defined (__STDC__) || defined (__cplusplus)))
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifndef YYFREE
# define YYFREE free
# if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \
&& (defined (__STDC__) || defined (__cplusplus)))
void free (void *); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifdef __cplusplus
}
# endif
# endif
#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
#if (! defined (yyoverflow) \
&& (! defined (__cplusplus) \
|| (defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
/* A type that is properly aligned for any stack member. */
union yyalloc
{
short int yyss;
YYSTYPE yyvs;
};
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
/* The size of an array large to enough to hold all stacks, each with
N elements. */
# define YYSTACK_BYTES(N) \
((N) * (sizeof (short int) + sizeof (YYSTYPE)) \
+ YYSTACK_GAP_MAXIMUM)
/* Copy COUNT objects from FROM to TO. The source and destination do
not overlap. */
# ifndef YYCOPY
# if defined (__GNUC__) && 1 < __GNUC__
# define YYCOPY(To, From, Count) \
__builtin_memcpy (To, From, (Count) * sizeof (*(From)))
# else
# define YYCOPY(To, From, Count) \
do \
{ \
YYSIZE_T yyi; \
for (yyi = 0; yyi < (Count); yyi++) \
(To)[yyi] = (From)[yyi]; \
} \
while (0)
# endif
# endif
/* Relocate STACK from its old location to the new one. The
local variables YYSIZE and YYSTACKSIZE give the old and new number of
elements in the stack, and YYPTR gives the new location of the
stack. Advance YYPTR to a properly aligned location for the next
stack. */
# define YYSTACK_RELOCATE(Stack) \
do \
{ \
YYSIZE_T yynewbytes; \
YYCOPY (&yyptr->Stack, Stack, yysize); \
Stack = &yyptr->Stack; \
yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*yyptr); \
} \
while (0)
#endif
#if defined (__STDC__) || defined (__cplusplus)
typedef signed char yysigned_char;
#else
typedef short int yysigned_char;
#endif
/* YYFINAL -- State number of the termination state. */
#define YYFINAL 4
/* YYLAST -- Last index in YYTABLE. */
#define YYLAST 1630
/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS 166
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS 81
/* YYNRULES -- Number of rules. */
#define YYNRULES 310
/* YYNRULES -- Number of states. */
#define YYNSTATES 606
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
#define YYUNDEFTOK 2
#define YYMAXUTOK 406
#define YYTRANSLATE(YYX) \
((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
static const unsigned char yytranslate[] =
{
0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
155, 156, 164, 2, 153, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
160, 152, 161, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 157, 154, 159, 2, 2, 2, 2, 2, 165,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
158, 2, 2, 162, 2, 163, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
105, 106, 107, 108, 109, 110, 111, 112, 113, 114,
115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
135, 136, 137, 138, 139, 140, 141, 142, 143, 144,
145, 146, 147, 148, 149, 150, 151
};
#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
YYRHS. */
static const unsigned short int yyprhs[] =
{
0, 0, 3, 5, 7, 9, 11, 13, 15, 17,
19, 21, 23, 25, 27, 29, 31, 33, 35, 37,
39, 41, 43, 45, 47, 49, 51, 53, 55, 57,
59, 61, 63, 65, 67, 69, 71, 73, 75, 77,
79, 81, 83, 85, 87, 89, 91, 93, 95, 97,
99, 101, 103, 105, 107, 109, 111, 113, 115, 117,
119, 121, 123, 125, 127, 129, 131, 133, 135, 137,
139, 141, 143, 145, 147, 149, 151, 153, 155, 157,
159, 161, 164, 165, 167, 169, 171, 173, 175, 177<