summaryrefslogtreecommitdiffstats
path: root/llvm/tools/llvm-upgrade/UpgradeInternals.h
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/tools/llvm-upgrade/UpgradeInternals.h')
-rw-r--r--llvm/tools/llvm-upgrade/UpgradeInternals.h300
1 files changed, 257 insertions, 43 deletions
diff --git a/llvm/tools/llvm-upgrade/UpgradeInternals.h b/llvm/tools/llvm-upgrade/UpgradeInternals.h
index f01d415f6b5..4fe0ed07564 100644
--- a/llvm/tools/llvm-upgrade/UpgradeInternals.h
+++ b/llvm/tools/llvm-upgrade/UpgradeInternals.h
@@ -1,65 +1,279 @@
-//===-- UpgradeInternals.h - Internal parser definitionsr -------*- C++ -*-===//
+//===-- ParserInternals.h - Definitions internal to the parser --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Reid Spencer and is distributed under
+// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This header file defines the variables that are shared between the lexer,
-// the parser, and the main program.
+// This header file defines the various variables that are shared among the
+// different components of the parser...
//
//===----------------------------------------------------------------------===//
-#ifndef UPGRADE_INTERNALS_H
-#define UPGRADE_INTERNALS_H
+#ifndef PARSER_INTERNALS_H
+#define PARSER_INTERNALS_H
+
+#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Function.h"
+#include "llvm/Instructions.h"
+#include "llvm/ADT/StringExtras.h"
+#include <list>
-#include <llvm/ADT/StringExtras.h>
-#include <string>
-#include <istream>
-#include <vector>
-#include <set>
-#include <cassert>
// Global variables exported from the lexer.
-extern std::string CurFileName;
-extern std::string Textin;
+extern int yydebug;
+extern void error(const std::string& msg, int line = -1);
+extern char* Upgradetext;
+extern int Upgradeleng;
extern int Upgradelineno;
+
+namespace llvm {
+
+
+class Module;
+Module* UpgradeAssembly(const std::string &infile, std::istream& in,
+ bool debug, bool addAttrs);
+
+
+class SignedType : public IntegerType {
+ const IntegerType *base_type;
+ static SignedType *SByteTy;
+ static SignedType *SShortTy;
+ static SignedType *SIntTy;
+ static SignedType *SLongTy;
+ SignedType(const IntegerType* ITy);
+public:
+ static const SignedType *get(const IntegerType* ITy);
+
+ bool isSigned() const { return true; }
+ const IntegerType* getBaseType() const {
+ return base_type;
+ }
+ const IntegerType* resolve() const {
+ ForwardType = base_type;
+ return base_type;
+ }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const SignedType *T) { return true; }
+ static inline bool classof(const Type *T);
+};
+
extern std::istream* LexInput;
-// Global variables exported from the parser.
-extern char* Upgradetext;
-extern int Upgradeleng;
-extern unsigned SizeOfPointer;
-
-// Functions exported by the parser
-void UpgradeAssembly(
- const std::string & infile, std::istream& in, std::ostream &out, bool debug,
- bool addAttrs);
-int yyerror(const char *ErrorMsg) ;
-
-/// This enum is used to keep track of the original (1.9) type used to form
-/// a type. These are needed for type upgrades and to determine how to upgrade
-/// signed instructions with signless operands. The Lexer uses thse in its
-/// calls to getType
-enum TypeIDs {
- BoolTy, SByteTy, UByteTy, ShortTy, UShortTy, IntTy, UIntTy, LongTy, ULongTy,
- FloatTy, DoubleTy, PointerTy, PackedTy, ArrayTy, StructTy, PackedStructTy,
- OpaqueTy, VoidTy, LabelTy, FunctionTy, UnresolvedTy, UpRefTy
+// 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 error.
+//
+// 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 = false);
+
+/// InlineAsmDescriptor - This is a simple class that holds info about inline
+/// asm blocks, for use by ValID.
+struct InlineAsmDescriptor {
+ std::string AsmString, Constraints;
+ bool HasSideEffects;
+
+ InlineAsmDescriptor(const std::string &as, const std::string &c, bool HSE)
+ : AsmString(as), Constraints(c), HasSideEffects(HSE) {}
+};
+
+
+// ValID - Represents a reference of a definition of some sort. This may either
+// be a numeric reference or a symbolic (%var) reference. This is just a
+// discriminated union.
+//
+// Note that I can't implement this class in a straight forward manner with
+// constructors and stuff because it goes in a union.
+//
+struct ValID {
+ enum {
+ NumberVal, NameVal, ConstSIntVal, ConstUIntVal, ConstFPVal, ConstNullVal,
+ ConstUndefVal, ConstZeroVal, ConstantVal, InlineAsmVal
+ } Type;
+
+ union {
+ int Num; // If it's a numeric reference
+ char *Name; // If it's a named reference. Memory must be free'd.
+ int64_t ConstPool64; // Constant pool reference. This is the value
+ uint64_t UConstPool64;// Unsigned constant pool reference.
+ double ConstPoolFP; // Floating point constant pool reference
+ Constant *ConstantValue; // Fully resolved constant for ConstantVal case.
+ InlineAsmDescriptor *IAD;
+ };
+
+ static ValID create(int Num) {
+ ValID D; D.Type = NumberVal; D.Num = Num; return D;
+ }
+
+ static ValID create(char *Name) {
+ ValID D; D.Type = NameVal; D.Name = Name; return D;
+ }
+
+ static ValID create(int64_t Val) {
+ ValID D; D.Type = ConstSIntVal; D.ConstPool64 = Val; return D;
+ }
+
+ static ValID create(uint64_t Val) {
+ ValID D; D.Type = ConstUIntVal; D.UConstPool64 = Val; return D;
+ }
+
+ static ValID create(double Val) {
+ ValID D; D.Type = ConstFPVal; D.ConstPoolFP = Val; return D;
+ }
+
+ static ValID createNull() {
+ ValID D; D.Type = ConstNullVal; return D;
+ }
+
+ static ValID createUndef() {
+ ValID D; D.Type = ConstUndefVal; return D;
+ }
+
+ static ValID createZeroInit() {
+ ValID D; D.Type = ConstZeroVal; return D;
+ }
+
+ static ValID create(Constant *Val) {
+ ValID D; D.Type = ConstantVal; D.ConstantValue = Val; return D;
+ }
+
+ static ValID createInlineAsm(const std::string &AsmString,
+ const std::string &Constraints,
+ bool HasSideEffects) {
+ ValID D;
+ D.Type = InlineAsmVal;
+ D.IAD = new InlineAsmDescriptor(AsmString, Constraints, HasSideEffects);
+ return D;
+ }
+
+ inline void destroy() const {
+ if (Type == NameVal)
+ free(Name); // Free this strdup'd memory.
+ else if (Type == InlineAsmVal)
+ delete IAD;
+ }
+
+ inline ValID copy() const {
+ if (Type != NameVal) return *this;
+ ValID Result = *this;
+ Result.Name = strdup(Name);
+ return Result;
+ }
+
+ inline std::string getName() const {
+ switch (Type) {
+ case NumberVal : return std::string("#") + itostr(Num);
+ case NameVal : return Name;
+ case ConstFPVal : return ftostr(ConstPoolFP);
+ case ConstNullVal : return "null";
+ case ConstUndefVal : return "undef";
+ case ConstZeroVal : return "zeroinitializer";
+ case ConstUIntVal :
+ case ConstSIntVal : return std::string("%") + itostr(ConstPool64);
+ case ConstantVal:
+ if (ConstantValue == ConstantInt::get(Type::Int1Ty, true))
+ return "true";
+ if (ConstantValue == ConstantInt::get(Type::Int1Ty, false))
+ return "false";
+ return "<constant expression>";
+ default:
+ assert(0 && "Unknown value!");
+ abort();
+ return "";
+ }
+ }
+
+ bool operator<(const ValID &V) const {
+ if (Type != V.Type) return Type < V.Type;
+ switch (Type) {
+ case NumberVal: return Num < V.Num;
+ case NameVal: return strcmp(Name, V.Name) < 0;
+ case ConstSIntVal: return ConstPool64 < V.ConstPool64;
+ case ConstUIntVal: return UConstPool64 < V.UConstPool64;
+ case ConstFPVal: return ConstPoolFP < V.ConstPoolFP;
+ case ConstNullVal: return false;
+ case ConstUndefVal: return false;
+ case ConstZeroVal: return false;
+ case ConstantVal: return ConstantValue < V.ConstantValue;
+ default: assert(0 && "Unknown value type!"); return false;
+ }
+ }
};
-namespace {
-class Type;
-class Value;
-class Constant;
-class Instruction;
-}
-typedef std::vector<const Type*> TypeList;
-typedef std::vector<Value*> ValueList;
+// This structure is used to keep track of obsolete opcodes. The lexer will
+// retain the ability to parse obsolete opcode mnemonics. In this case it will
+// set "obsolete" to true and the opcode will be the replacement opcode. For
+// example if "rem" is encountered then opcode will be set to "urem" and the
+// "obsolete" flag will be true. If the opcode is not obsolete then "obsolete"
+// will be false.
+
+enum TermOps {
+ RetOp, BrOp, SwitchOp, InvokeOp, UnwindOp, UnreachableOp
+};
+
+enum BinaryOps {
+ AddOp, SubOp, MulOp,
+ DivOp, UDivOp, SDivOp, FDivOp,
+ RemOp, URemOp, SRemOp, FRemOp,
+ AndOp, OrOp, XorOp,
+ SetEQ, SetNE, SetLE, SetGE, SetLT, SetGT
+};
+
+enum MemoryOps {
+ MallocOp, FreeOp, AllocaOp, LoadOp, StoreOp, GetElementPtrOp
+};
+
+enum OtherOps {
+ PHIOp, CallOp, ShlOp, ShrOp, SelectOp, UserOp1, UserOp2, VAArg,
+ ExtractElementOp, InsertElementOp, ShuffleVectorOp,
+ ICmpOp, FCmpOp,
+ LShrOp, AShrOp
+};
+
+enum CastOps {
+ CastOp, TruncOp, ZExtOp, SExtOp, FPTruncOp, FPExtOp, FPToUIOp, FPToSIOp,
+ UIToFPOp, SIToFPOp, PtrToIntOp, IntToPtrOp, BitCastOp
+};
+
+enum Signedness { Signless, Unsigned, Signed };
+
+struct TypeInfo {
+ const llvm::Type *T;
+ Signedness S;
+};
+
+struct PATypeInfo {
+ llvm::PATypeHolder* T;
+ Signedness S;
+};
+
+struct ConstInfo {
+ llvm::Constant* C;
+ Signedness S;
+};
+
+struct ValueInfo {
+ llvm::Value* V;
+ Signedness S;
+};
+
+struct InstrInfo {
+ llvm::Instruction *I;
+ Signedness S;
+};
+
+struct PHIListInfo {
+ std::list<std::pair<llvm::Value*, llvm::BasicBlock*> > *P;
+ Signedness S;
+};
-/// A function to create a Typeo* used in the Lexer.
-extern const Type* getType(const std::string& newTy, TypeIDs oldTy);
+} // End llvm namespace
#endif
OpenPOWER on IntegriCloud