[llvm-commits] CVS: llvm/lib/AsmParser/Lexer.l llvmAsmParser.y ParserInternals.h

Reid Spencer reid at x10sys.com
Mon Nov 27 23:28:29 PST 2006



Changes in directory llvm/lib/AsmParser:

Lexer.l updated: 1.84 -> 1.85
llvmAsmParser.y updated: 1.277 -> 1.278
ParserInternals.h updated: 1.48 -> 1.49
---
Log message:

Implement signedness caching for values, value lists, constants and 
constant lists. This is just an internal change to the parser in 
preparation for some backwards compatibility code that is to follow.
This will allow things like "uint 4000000000" to retain the unsignedness 
of the integer constant as the value moves through the parser. In the 
future, all integer types will be signless but parsing "uint" and friends
will be retained for backwards compatibility.



---
Diffs of the changes:  (+250 -202)

 Lexer.l           |   40 ++---
 ParserInternals.h |   23 ++-
 llvmAsmParser.y   |  389 ++++++++++++++++++++++++++++++------------------------
 3 files changed, 250 insertions(+), 202 deletions(-)


Index: llvm/lib/AsmParser/Lexer.l
diff -u llvm/lib/AsmParser/Lexer.l:1.84 llvm/lib/AsmParser/Lexer.l:1.85
--- llvm/lib/AsmParser/Lexer.l:1.84	Sun Nov 26 19:05:09 2006
+++ llvm/lib/AsmParser/Lexer.l	Tue Nov 28 01:28:14 2006
@@ -51,17 +51,11 @@
   llvmAsmlval.type.obsolete = true; \
   return sym
 
-// Construct a token value for a non-obsolete type
-#define RET_TY(CType, sym) \
-  llvmAsmlval.TypeVal.type = new PATypeHolder(CType); \
-  llvmAsmlval.TypeVal.signedness = isSignless; \
-  return sym
-
 // Construct a token value for an obsolete token
-#define RET_TY_OBSOLETE(CType, sign, sym) \
-  llvmAsmlval.TypeVal.type = new PATypeHolder(CType); \
-  llvmAsmlval.TypeVal.signedness = sign; \
-  return sym
+#define RET_TY(CTYPE, SIGN, SYM) \
+  llvmAsmlval.TypeVal.type = new PATypeHolder(CTYPE); \
+  llvmAsmlval.TypeVal.signedness = SIGN; \
+  return SYM
 
 namespace llvm {
 
@@ -249,19 +243,19 @@
 x86_stdcallcc   { return X86_STDCALLCC_TOK; }
 x86_fastcallcc  { return X86_FASTCALLCC_TOK; }
 
-void            { RET_TY(Type::VoidTy, VOID);  }
-bool            { RET_TY(Type::BoolTy, BOOL);  }
-sbyte           { RET_TY_OBSOLETE(Type::SByteTy, isSigned,   SBYTE); }
-ubyte           { RET_TY_OBSOLETE(Type::UByteTy, isUnsigned, UBYTE); }
-short           { RET_TY_OBSOLETE(Type::ShortTy, isSigned,   SHORT); }
-ushort          { RET_TY_OBSOLETE(Type::UShortTy,isUnsigned, USHORT); }
-int             { RET_TY_OBSOLETE(Type::IntTy,   isSigned,   INT);    }
-uint            { RET_TY_OBSOLETE(Type::UIntTy,  isUnsigned, UINT);   }
-long            { RET_TY_OBSOLETE(Type::LongTy,  isSigned,   LONG);   }
-ulong           { RET_TY_OBSOLETE(Type::ULongTy, isUnsigned, ULONG);  }
-float           { RET_TY(Type::FloatTy, FLOAT);  }
-double          { RET_TY(Type::DoubleTy, DOUBLE); }
-label           { RET_TY(Type::LabelTy,  LABEL);  }
+void            { RET_TY(Type::VoidTy,  isSignless, VOID);  }
+bool            { RET_TY(Type::BoolTy,  isSignless, BOOL);  }
+sbyte           { RET_TY(Type::SByteTy, isSigned,   SBYTE); }
+ubyte           { RET_TY(Type::UByteTy, isUnsigned, UBYTE); }
+short           { RET_TY(Type::ShortTy, isSigned,   SHORT); }
+ushort          { RET_TY(Type::UShortTy,isUnsigned, USHORT);}
+int             { RET_TY(Type::IntTy,   isSigned,   INT);   }
+uint            { RET_TY(Type::UIntTy,  isUnsigned, UINT);  }
+long            { RET_TY(Type::LongTy,  isSigned,   LONG);  }
+ulong           { RET_TY(Type::ULongTy, isUnsigned, ULONG); }
+float           { RET_TY(Type::FloatTy, isSignless, FLOAT); }
+double          { RET_TY(Type::DoubleTy,isSignless, DOUBLE);}
+label           { RET_TY(Type::LabelTy, isSignless, LABEL); }
 type            { return TYPE;   }
 opaque          { return OPAQUE; }
 


Index: llvm/lib/AsmParser/llvmAsmParser.y
diff -u llvm/lib/AsmParser/llvmAsmParser.y:1.277 llvm/lib/AsmParser/llvmAsmParser.y:1.278
--- llvm/lib/AsmParser/llvmAsmParser.y:1.277	Sun Nov 26 19:05:09 2006
+++ llvm/lib/AsmParser/llvmAsmParser.y	Tue Nov 28 01:28:14 2006
@@ -83,8 +83,8 @@
   Module *CurrentModule;
   std::map<const Type *, ValueList> Values; // Module level numbered definitions
   std::map<const Type *,ValueList> LateResolveValues;
-  std::vector<TypeInfo>    Types;
-  std::map<ValID, TypeInfo> LateResolveTypes;
+  std::vector<PATypeHolder>    Types;
+  std::map<ValID, PATypeHolder> LateResolveTypes;
 
   /// PlaceHolderInfo - When temporary placeholder objects are created, remember
   /// how they were referenced and on which line of the input they came from so
@@ -217,7 +217,7 @@
   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].type->get();
+      return CurModule.Types[(unsigned)D.Num];
     break;
   case ValID::NameVal:                 // Is it a named definition?
     if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
@@ -247,16 +247,14 @@
     }
   }
 
-  std::map<ValID, TypeInfo>::iterator I =CurModule.LateResolveTypes.find(D);
+  std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
   if (I != CurModule.LateResolveTypes.end())
-    return I->second.type->get();
+    return I->second;
 
-  TypeInfo TI;
-  TI.type = new PATypeHolder(OpaqueType::get());
-  TI.signedness = isSignless;
-  CurModule.LateResolveTypes.insert(std::make_pair(D, TI));
-  return TI.type->get();
- }
+  Type *Typ = OpaqueType::get();
+  CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
+  return Typ;
+}
 
 static Value *lookupInSymbolTable(const Type *Ty, const std::string &Name) {
   SymbolTable &SymTab =
@@ -559,10 +557,10 @@
   if (Name) D = ValID::create(Name);
   else      D = ValID::create((int)CurModule.Types.size());
 
-  std::map<ValID, TypeInfo>::iterator I =
+  std::map<ValID, PATypeHolder>::iterator I =
     CurModule.LateResolveTypes.find(D);
   if (I != CurModule.LateResolveTypes.end()) {
-    ((DerivedType*)I->second.type->get())->refineAbstractTypeTo(ToTy);
+    ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
     CurModule.LateResolveTypes.erase(I);
   }
 }
@@ -1044,19 +1042,17 @@
   llvm::BasicBlock                       *BasicBlockVal;
   llvm::TerminatorInst                   *TermInstVal;
   llvm::Instruction                      *InstVal;
-  llvm::Constant                         *ConstVal;
-
-  TypeInfo                                TypeVal;
-  llvm::Value                            *ValueVal;
+  ConstInfo                              ConstVal;
+  TypeInfo                               TypeVal;
+  ValueInfo                              ValueVal;
 
   std::vector<std::pair<TypeInfo,char*> >*ArgList;
-  std::vector<llvm::Value*>              *ValueList;
+  std::vector<ValueInfo>                 *ValueList;
   std::list<TypeInfo>                    *TypeList;
   // Represent the RHS of PHI node
-  std::list<std::pair<llvm::Value*,
-                      llvm::BasicBlock*> > *PHIList;
+  std::list<std::pair<llvm::Value*, llvm::BasicBlock*> > *PHIList;
   std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
-  std::vector<llvm::Constant*>           *ConstVector;
+  std::vector<ConstInfo>                 *ConstVector;
 
   llvm::GlobalValue::LinkageTypes         Linkage;
   int64_t                           SInt64Val;
@@ -1374,7 +1370,7 @@
     std::vector<const Type*> Elements;
     for (std::list<TypeInfo>::iterator I = $2->begin(),
            E = $2->end(); I != E; ++I)
-      Elements.push_back(I->type->get());
+      Elements.push_back((*I).type->get());
 
     $$.type = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
     $$.signedness = isSignless;
@@ -1390,7 +1386,7 @@
     if ($1.type->get() == Type::LabelTy)
       GEN_ERROR("Cannot form a pointer to a basic block");
     $$.type = new PATypeHolder(HandleUpRefs(PointerType::get($1.type->get())));
-    $$.signedness = $1.signedness;
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   };
@@ -1448,14 +1444,19 @@
                      itostr(NumElements) + "!");
 
     // Verify all elements are correct type!
+    std::vector<Constant*> elems;
     for (unsigned i = 0; i < $3->size(); i++) {
-      if (ETy != (*$3)[i]->getType())
+      if (ETy != (*$3)[i].cnst->getType()) {
         GEN_ERROR("Element #" + utostr(i) + " is not of type '" + 
                        ETy->getDescription() +"' as required!\nIt is of type '"+
-                       (*$3)[i]->getType()->getDescription() + "'.");
+                       (*$3)[i].cnst->getType()->getDescription() + "'.");
+      } else {
+        elems.push_back((*$3)[i].cnst);
+      }
     }
 
-    $$ = ConstantArray::get(ATy, *$3);
+    $$.cnst = ConstantArray::get(ATy, elems);
+    $$.signedness = isSignless;
     delete $1.type; delete $3;
     CHECK_FOR_ERROR
   }
@@ -1469,7 +1470,8 @@
     if (NumElements != -1 && NumElements != 0) 
       GEN_ERROR("Type mismatch: constant sized array initialized with 0"
                      " arguments, but has size of " + itostr(NumElements) +"!");
-    $$ = ConstantArray::get(ATy, std::vector<Constant*>());
+    $$.cnst = ConstantArray::get(ATy, std::vector<llvm::Constant*>());
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   }
@@ -1499,7 +1501,8 @@
       GEN_ERROR("Cannot build string arrays of non byte sized elements!");
     }
     free($3);
-    $$ = ConstantArray::get(ATy, Vals);
+    $$.cnst = ConstantArray::get(ATy, Vals);
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   }
@@ -1518,14 +1521,18 @@
                      itostr(NumElements) + "!");
 
     // Verify all elements are correct type!
+    std::vector<Constant*> elems;
     for (unsigned i = 0; i < $3->size(); i++) {
-      if (ETy != (*$3)[i]->getType())
+      if (ETy != (*$3)[i].cnst->getType()) {
         GEN_ERROR("Element #" + utostr(i) + " is not of type '" + 
            ETy->getDescription() +"' as required!\nIt is of type '"+
-           (*$3)[i]->getType()->getDescription() + "'.");
+           (*$3)[i].cnst->getType()->getDescription() + "'.");
+      } else
+        elems.push_back((*$3)[i].cnst);
     }
 
-    $$ = ConstantPacked::get(PTy, *$3);
+    $$.cnst = ConstantPacked::get(PTy, elems);
+    $$.signedness = isSignless;
     delete $1.type; delete $3;
     CHECK_FOR_ERROR
   }
@@ -1539,14 +1546,18 @@
       GEN_ERROR("Illegal number of initializers for structure type!");
 
     // Check to ensure that constants are compatible with the type initializer!
+    std::vector<Constant*> elems;
     for (unsigned i = 0, e = $3->size(); i != e; ++i)
-      if ((*$3)[i]->getType() != STy->getElementType(i))
+      if ((*$3)[i].cnst->getType() != STy->getElementType(i)) {
         GEN_ERROR("Expected type '" +
                        STy->getElementType(i)->getDescription() +
                        "' for element #" + utostr(i) +
                        " of structure initializer!");
+      } else
+        elems.push_back((*$3)[i].cnst);
 
-    $$ = ConstantStruct::get(STy, *$3);
+    $$.cnst = ConstantStruct::get(STy, elems);
+    $$.signedness = isSignless;
     delete $1.type; delete $3;
     CHECK_FOR_ERROR
   }
@@ -1559,7 +1570,8 @@
     if (STy->getNumContainedTypes() != 0)
       GEN_ERROR("Illegal number of initializers for structure type!");
 
-    $$ = ConstantStruct::get(STy, std::vector<Constant*>());
+    $$.cnst = ConstantStruct::get(STy, std::vector<Constant*>());
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   }
@@ -1569,12 +1581,14 @@
       GEN_ERROR("Cannot make null pointer constant with type: '" + 
                      $1.type->get()->getDescription() + "'!");
 
-    $$ = ConstantPointerNull::get(PTy);
+    $$.cnst = ConstantPointerNull::get(PTy);
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   }
   | Types UNDEF {
-    $$ = UndefValue::get($1.type->get());
+    $$.cnst = UndefValue::get($1.type->get());
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   }
@@ -1635,12 +1649,13 @@
       }
     }
 
-    $$ = cast<GlobalValue>(V);
+    $$.cnst = cast<GlobalValue>(V);
+    $$.signedness = $1.signedness;
     delete $1.type;            // Free the type handle
     CHECK_FOR_ERROR
   }
   | Types ConstExpr {
-    if ($1.type->get() != $2->getType())
+    if ($1.type->get() != $2.cnst->getType())
       GEN_ERROR("Mismatched types for constant expression!");
     $$ = $2;
     delete $1.type;
@@ -1650,7 +1665,8 @@
     const Type *Ty = $1.type->get();
     if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
       GEN_ERROR("Cannot create a null initialized value of this type!");
-    $$ = Constant::getNullValue(Ty);
+    $$.cnst = Constant::getNullValue(Ty);
+    $$.signedness = isSignless;
     delete $1.type;
     CHECK_FOR_ERROR
   };
@@ -1658,33 +1674,38 @@
 ConstVal : SIntType EINT64VAL {      // integral constants
     if (!ConstantInt::isValueValidForType($1.type->get(), $2))
       GEN_ERROR("Constant value doesn't fit in type!");
-    $$ = ConstantInt::get($1.type->get(), $2);
+    $$.cnst = ConstantInt::get($1.type->get(), $2);
+    $$.signedness = $1.signedness;
     CHECK_FOR_ERROR
   }
   | UIntType EUINT64VAL {            // integral constants
     if (!ConstantInt::isValueValidForType($1.type->get(), $2))
       GEN_ERROR("Constant value doesn't fit in type!");
-    $$ = ConstantInt::get($1.type->get(), $2);
+    $$.cnst = ConstantInt::get($1.type->get(), $2);
+    $$.signedness = $1.signedness;
     CHECK_FOR_ERROR
   }
   | BOOL TRUETOK {                      // Boolean constants
-    $$ = ConstantBool::getTrue();
+    $$.cnst = ConstantBool::getTrue();
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | BOOL FALSETOK {                     // Boolean constants
-    $$ = ConstantBool::getFalse();
+    $$.cnst = ConstantBool::getFalse();
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | FPType FPVAL {                   // Float & Double constants
     if (!ConstantFP::isValueValidForType($1.type->get(), $2))
       GEN_ERROR("Floating point constant invalid for type!!");
-    $$ = ConstantFP::get($1.type->get(), $2);
+    $$.cnst = ConstantFP::get($1.type->get(), $2);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   };
 
 
 ConstExpr: CastOps '(' ConstVal TO Types ')' {
-    Constant *Val = $3;
+    Constant *Val = $3.cnst;
     const Type *Ty = $5.type->get();
     if (!Val->getType()->isFirstClassType())
       GEN_ERROR("cast constant expression from a non-primitive type: '" +
@@ -1696,73 +1717,64 @@
       if (Ty == Type::BoolTy) {
         // The previous definition of cast to bool was a compare against zero. 
         // We have to retain that semantic so we do it here.
-        $$ = ConstantExpr::get(Instruction::SetNE, Val, 
+        $$.cnst = ConstantExpr::get(Instruction::SetNE, Val, 
                                Constant::getNullValue(Val->getType()));
       } else if (Val->getType()->isFloatingPoint() && isa<PointerType>(Ty)) {
         Constant *CE = ConstantExpr::getFPToUI(Val, Type::ULongTy);
-        $$ = ConstantExpr::getIntToPtr(CE, Ty);
+        $$.cnst = ConstantExpr::getIntToPtr(CE, Ty);
       } else {
-        $$ = ConstantExpr::getCast(Val, Ty);
+        $$.cnst = ConstantExpr::getCast(Val, Ty);
       }
     } else {
-      $$ = ConstantExpr::getCast($1.opcode, $3, $5.type->get());
+      $$.cnst = ConstantExpr::getCast($1.opcode, $3.cnst, $5.type->get());
     }
     delete $5.type;
   }
   | GETELEMENTPTR '(' ConstVal IndexList ')' {
-    if (!isa<PointerType>($3->getType()))
+    if (!isa<PointerType>($3.cnst->getType()))
       GEN_ERROR("GetElementPtr requires a pointer operand!");
 
-    // LLVM 1.2 and earlier used ubyte struct indices.  Convert any ubyte struct
-    // indices to uint struct indices for compatibility.
-    generic_gep_type_iterator<std::vector<Value*>::iterator>
-      GTI = gep_type_begin($3->getType(), $4->begin(), $4->end()),
-      GTE = gep_type_end($3->getType(), $4->begin(), $4->end());
-    for (unsigned i = 0, e = $4->size(); i != e && GTI != GTE; ++i, ++GTI)
-      if (isa<StructType>(*GTI))        // Only change struct indices
-        if (ConstantInt *CUI = dyn_cast<ConstantInt>((*$4)[i]))
-          if (CUI->getType() == Type::UByteTy)
-            (*$4)[i] = ConstantExpr::getCast(CUI, Type::UIntTy);
+    std::vector<llvm::Value*> IdxVec;
+    for (unsigned i = 0, e = $4->size(); i < e; ++i)
+      if (Constant *C = dyn_cast<Constant>((*$4)[i].val))
+        IdxVec.push_back(C);
+      else
+        GEN_ERROR("Indices to constant getelementptr must be constants!");
 
     const Type *IdxTy =
-      GetElementPtrInst::getIndexedType($3->getType(), *$4, true);
+      GetElementPtrInst::getIndexedType($3.cnst->getType(), IdxVec, true);
     if (!IdxTy)
       GEN_ERROR("Index list invalid for constant getelementptr!");
 
-    std::vector<Constant*> IdxVec;
-    for (unsigned i = 0, e = $4->size(); i != e; ++i)
-      if (Constant *C = dyn_cast<Constant>((*$4)[i]))
-        IdxVec.push_back(C);
-      else
-        GEN_ERROR("Indices to constant getelementptr must be constants!");
-
     delete $4;
 
-    $$ = ConstantExpr::getGetElementPtr($3, IdxVec);
+    $$.cnst = ConstantExpr::getGetElementPtr($3.cnst, IdxVec);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
-    if ($3->getType() != Type::BoolTy)
+    if ($3.cnst->getType() != Type::BoolTy)
       GEN_ERROR("Select condition must be of boolean type!");
-    if ($5->getType() != $7->getType())
+    if ($5.cnst->getType() != $7.cnst->getType())
       GEN_ERROR("Select operand types must match!");
-    $$ = ConstantExpr::getSelect($3, $5, $7);
+    $$.cnst = ConstantExpr::getSelect($3.cnst, $5.cnst, $7.cnst);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
-    if ($3->getType() != $5->getType())
+    if ($3.cnst->getType() != $5.cnst->getType())
       GEN_ERROR("Binary operator types must match!");
     // First, make sure we're dealing with the right opcode by upgrading from
     // obsolete versions.
-    sanitizeOpcode($1, $3->getType());
+    sanitizeOpcode($1, $3.cnst->getType());
     CHECK_FOR_ERROR;
 
     // HACK: llvm 1.3 and earlier used to emit invalid pointer constant exprs.
     // To retain backward compatibility with these early compilers, we emit a
     // cast to the appropriate integer type automatically if we are in the
     // broken case.  See PR424 for more information.
-    if (!isa<PointerType>($3->getType())) {
-      $$ = ConstantExpr::get($1.opcode, $3, $5);
+    if (!isa<PointerType>($3.cnst->getType())) {
+      $$.cnst = ConstantExpr::get($1.opcode, $3.cnst, $5.cnst);
     } else {
       const Type *IntPtrTy = 0;
       switch (CurModule.CurrentModule->getPointerSize()) {
@@ -1770,56 +1782,64 @@
       case Module::Pointer64: IntPtrTy = Type::LongTy; break;
       default: GEN_ERROR("invalid pointer binary constant expr!");
       }
-      $$ = ConstantExpr::get($1.opcode, ConstantExpr::getCast($3, IntPtrTy),
-                             ConstantExpr::getCast($5, IntPtrTy));
-      $$ = ConstantExpr::getCast($$, $3->getType());
+      $$.cnst = ConstantExpr::get($1.opcode, 
+                                  ConstantExpr::getCast($3.cnst, IntPtrTy),
+                                  ConstantExpr::getCast($5.cnst, IntPtrTy));
+      $$.cnst = ConstantExpr::getCast($$.cnst, $3.cnst->getType());
     }
+    $$.signedness = $3.signedness;
     CHECK_FOR_ERROR
   }
   | LogicalOps '(' ConstVal ',' ConstVal ')' {
-    if ($3->getType() != $5->getType())
+    if ($3.cnst->getType() != $5.cnst->getType())
       GEN_ERROR("Logical operator types must match!");
-    if (!$3->getType()->isIntegral()) {
-      if (!isa<PackedType>($3->getType()) || 
-          !cast<PackedType>($3->getType())->getElementType()->isIntegral())
+    if (!$3.cnst->getType()->isIntegral()) {
+      if (!isa<PackedType>($3.cnst->getType()) || 
+          !cast<PackedType>($3.cnst->getType())->getElementType()->isIntegral())
         GEN_ERROR("Logical operator requires integral operands!");
     }
-    $$ = ConstantExpr::get($1.opcode, $3, $5);
+    $$.cnst = ConstantExpr::get($1.opcode, $3.cnst, $5.cnst);
+    $$.signedness = $3.signedness;
     CHECK_FOR_ERROR
   }
   | SetCondOps '(' ConstVal ',' ConstVal ')' {
-    if ($3->getType() != $5->getType())
+    if ($3.cnst->getType() != $5.cnst->getType())
       GEN_ERROR("setcc operand types must match!");
-    $$ = ConstantExpr::get($1.opcode, $3, $5);
+    $$.cnst = ConstantExpr::get($1.opcode, $3.cnst, $5.cnst);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | ShiftOps '(' ConstVal ',' ConstVal ')' {
-    if ($5->getType() != Type::UByteTy)
+    if ($5.cnst->getType() != Type::UByteTy)
       GEN_ERROR("Shift count for shift constant must be unsigned byte!");
-    if (!$3->getType()->isInteger())
+    if (!$3.cnst->getType()->isInteger())
       GEN_ERROR("Shift constant expression requires integer operand!");
     // Handle opcode upgrade situations
-    sanitizeOpcode($1, $3->getType());
+    sanitizeOpcode($1, $3.cnst->getType());
     CHECK_FOR_ERROR;
-    $$ = ConstantExpr::get($1.opcode, $3, $5);
+    $$.cnst = ConstantExpr::get($1.opcode, $3.cnst, $5.cnst);
+    $$.signedness = $3.signedness;
     CHECK_FOR_ERROR
   }
   | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
-    if (!ExtractElementInst::isValidOperands($3, $5))
+    if (!ExtractElementInst::isValidOperands($3.cnst, $5.cnst))
       GEN_ERROR("Invalid extractelement operands!");
-    $$ = ConstantExpr::getExtractElement($3, $5);
+    $$.cnst = ConstantExpr::getExtractElement($3.cnst, $5.cnst);
+    $$.signedness = $3.signedness;
     CHECK_FOR_ERROR
   }
   | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
-    if (!InsertElementInst::isValidOperands($3, $5, $7))
+    if (!InsertElementInst::isValidOperands($3.cnst, $5.cnst, $7.cnst))
       GEN_ERROR("Invalid insertelement operands!");
-    $$ = ConstantExpr::getInsertElement($3, $5, $7);
+    $$.cnst = ConstantExpr::getInsertElement($3.cnst, $5.cnst, $7.cnst);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   }
   | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
-    if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
+    if (!ShuffleVectorInst::isValidOperands($3.cnst, $5.cnst, $7.cnst))
       GEN_ERROR("Invalid shufflevector operands!");
-    $$ = ConstantExpr::getShuffleVector($3, $5, $7);
+    $$.cnst = ConstantExpr::getShuffleVector($3.cnst, $5.cnst, $7.cnst);
+    $$.signedness = isSignless;
     CHECK_FOR_ERROR
   };
 
@@ -1830,7 +1850,7 @@
     CHECK_FOR_ERROR
   }
   | ConstVal {
-    $$ = new std::vector<Constant*>();
+    $$ = new std::vector<ConstInfo>();
     $$->push_back($1);
     CHECK_FOR_ERROR
   };
@@ -1903,7 +1923,7 @@
       CHECK_FOR_ERROR
       // If this is a named type that is not a redefinition, add it to the slot
       // table.
-      CurModule.Types.push_back($4);
+      CurModule.Types.push_back(*($4.type));
     } else {
       delete $4.type;
     }
@@ -1916,9 +1936,9 @@
     CHECK_FOR_ERROR
   }
   | ConstPool OptAssign OptLinkage GlobalType ConstVal {
-    if ($5 == 0) 
+    if ($5.cnst == 0) 
       GEN_ERROR("Global value initializer is not a constant!");
-    CurGV = ParseGlobalVariable($2, $3, $4, $5->getType(), $5);
+    CurGV = ParseGlobalVariable($2, $3, $4, $5.cnst->getType(), $5.cnst);
     CHECK_FOR_ERROR
   } GlobalVarAttributes {
     CurGV = 0;
@@ -2235,7 +2255,7 @@
     CHECK_FOR_ERROR
   }
   | '<' ConstVector '>' { // Nonempty unsized packed vector
-    const Type *ETy = (*$2)[0]->getType();
+    const Type *ETy = (*$2)[0].cnst->getType();
     int NumElements = $2->size(); 
     
     PackedType* pt = PackedType::get(ETy, NumElements);
@@ -2243,19 +2263,22 @@
        HandleUpRefs(PackedType::get( ETy, NumElements)));
     
     // Verify all elements are correct type!
+    std::vector<Constant*> elems;
     for (unsigned i = 0; i < $2->size(); i++) {
-      if (ETy != (*$2)[i]->getType())
+      if (ETy != (*$2)[i].cnst->getType()) {
         GEN_ERROR("Element #" + utostr(i) + " is not of type '" + 
                      ETy->getDescription() +"' as required!\nIt is of type '" +
-                     (*$2)[i]->getType()->getDescription() + "'.");
+                     (*$2)[i].cnst->getType()->getDescription() + "'.");
+      } else
+        elems.push_back((*$2)[i].cnst);
     }
 
-    $$ = ValID::create(ConstantPacked::get(pt, *$2));
+    $$ = ValID::create(ConstantPacked::get(pt, elems));
     delete PTy; delete $2;
     CHECK_FOR_ERROR
   }
   | ConstExpr {
-    $$ = ValID::create($1);
+    $$ = ValID::create($1.cnst);
     CHECK_FOR_ERROR
   }
   | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
@@ -2289,8 +2312,10 @@
 // type immediately preceeds the value reference, and allows complex constant
 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
 ResolvedVal : Types ValueRef {
-    $$ = getVal($1.type->get(), $2); delete $1.type;
+    $$.val = getVal($1.type->get(), $2); 
+    delete $1.type;
     CHECK_FOR_ERROR
+    $$.signedness = $1.signedness;
   };
 
 BasicBlockList : BasicBlockList BasicBlock {
@@ -2352,7 +2377,7 @@
   };
 
 BBTerminatorInst : RET ResolvedVal {              // Return with a result...
-    $$ = new ReturnInst($2);
+    $$ = new ReturnInst($2.val);
     CHECK_FOR_ERROR
   }
   | RET VOID {                                       // Return with no result...
@@ -2411,9 +2436,9 @@
       // Pull out the types of all of the arguments...
       std::vector<const Type*> ParamTypes;
       if ($6) {
-        for (std::vector<Value*>::iterator I = $6->begin(), E = $6->end();
+        for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
              I != E; ++I)
-          ParamTypes.push_back((*I)->getType());
+          ParamTypes.push_back((*I).val->getType());
       }
 
       bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
@@ -2439,17 +2464,26 @@
       //
       FunctionType::param_iterator I = Ty->param_begin();
       FunctionType::param_iterator E = Ty->param_end();
-      std::vector<Value*>::iterator ArgI = $6->begin(), ArgE = $6->end();
+      std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
 
-      for (; ArgI != ArgE && I != E; ++ArgI, ++I)
-        if ((*ArgI)->getType() != *I)
-          GEN_ERROR("Parameter " +(*ArgI)->getName()+ " is not of type '" +
-                         (*I)->getDescription() + "'!");
-
-      if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
-        GEN_ERROR("Invalid number of parameters detected!");
-
-      $$ = new InvokeInst(V, Normal, Except, *$6);
+      std::vector<Value*> args;
+      for (; ArgI != ArgE; ++ArgI)
+        if (I == E) {
+          if (Ty->isVarArg()) {
+            args.push_back((*ArgI).val);
+          } else {
+            GEN_ERROR("Too many parameters for function of type " +
+              Ty->getDescription());
+          }
+        } else {
+          if ((*ArgI).val->getType() != *I) {
+            GEN_ERROR("Parameter " + (*ArgI).val->getName() + 
+                      " is not of type '" + (*I)->getDescription() + "'!");
+          } else
+            args.push_back((*ArgI).val);
+          ++I;
+        }
+      $$ = new InvokeInst(V, Normal, Except, args);
     }
     cast<InvokeInst>($$)->setCallingConv($2);
   
@@ -2521,7 +2555,7 @@
 
 
 ValueRefList : ResolvedVal {    // Used for call statements, and memory insts...
-    $$ = new std::vector<Value*>();
+    $$ = new std::vector<ValueInfo>();
     $$->push_back($1);
   }
   | ValueRefList ',' ResolvedVal {
@@ -2531,7 +2565,12 @@
   };
 
 // ValueRefListE - Just like ValueRefList, except that it may also be empty!
-ValueRefListE : ValueRefList | /*empty*/ { $$ = 0; };
+ValueRefListE : ValueRefList {
+    $$ = $1;
+  }
+  | /*empty*/ { 
+    $$ = 0; 
+  };
 
 OptTailCall : TAIL CALL {
     $$ = true;
@@ -2597,28 +2636,28 @@
     std::cerr << "WARNING: Use of eliminated 'not' instruction:"
               << " Replacing with 'xor'.\n";
 
-    Value *Ones = ConstantIntegral::getAllOnesValue($2->getType());
+    Value *Ones = ConstantIntegral::getAllOnesValue($2.val->getType());
     if (Ones == 0)
       GEN_ERROR("Expected integral type for not instruction!");
 
-    $$ = BinaryOperator::create(Instruction::Xor, $2, Ones);
+    $$ = BinaryOperator::create(Instruction::Xor, $2.val, Ones);
     if ($$ == 0)
       GEN_ERROR("Could not create a xor instruction!");
     CHECK_FOR_ERROR
   }
   | ShiftOps ResolvedVal ',' ResolvedVal {
-    if ($4->getType() != Type::UByteTy)
+    if ($4.val->getType() != Type::UByteTy)
       GEN_ERROR("Shift amount must be ubyte!");
-    if (!$2->getType()->isInteger())
+    if (!$2.val->getType()->isInteger())
       GEN_ERROR("Shift constant expression requires integer operand!");
     // Handle opcode upgrade situations
-    sanitizeOpcode($1, $2->getType());
+    sanitizeOpcode($1, $2.val->getType());
     CHECK_FOR_ERROR;
-    $$ = new ShiftInst($1.opcode, $2, $4);
+    $$ = new ShiftInst($1.opcode, $2.val, $4.val);
     CHECK_FOR_ERROR
   }
   | CastOps ResolvedVal TO Types {
-    Value* Val = $2;
+    Value* Val = $2.val;
     const Type* Ty = $4.type->get();
     if (!Val->getType()->isFirstClassType())
       GEN_ERROR("cast from a non-primitive type: '" +
@@ -2630,8 +2669,8 @@
       if (Ty == Type::BoolTy) {
         // The previous definition of cast to bool was a compare against zero. 
         // We have to retain that semantic so we do it here.
-        $$ = new SetCondInst(Instruction::SetNE, $2, 
-                               Constant::getNullValue($2->getType()));
+        $$ = new SetCondInst(Instruction::SetNE, $2.val, 
+                               Constant::getNullValue($2.val->getType()));
       } else if (Val->getType()->isFloatingPoint() && isa<PointerType>(Ty)) {
         CastInst *CI = new FPToUIInst(Val, Type::ULongTy);
         $$ = new IntToPtrInst(CI, Ty);
@@ -2639,27 +2678,27 @@
         $$ = CastInst::createInferredCast(Val, Ty);
       }
     } else {
-      $$ = CastInst::create($1.opcode, $2, $4.type->get());
+      $$ = CastInst::create($1.opcode, $2.val, $4.type->get());
     }
     delete $4.type;
   }
   | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
-    if ($2->getType() != Type::BoolTy)
+    if ($2.val->getType() != Type::BoolTy)
       GEN_ERROR("select condition must be boolean!");
-    if ($4->getType() != $6->getType())
+    if ($4.val->getType() != $6.val->getType())
       GEN_ERROR("select value types should match!");
-    $$ = new SelectInst($2, $4, $6);
+    $$ = new SelectInst($2.val, $4.val, $6.val);
     CHECK_FOR_ERROR
   }
   | VAARG ResolvedVal ',' Types {
     NewVarArgs = true;
-    $$ = new VAArgInst($2, $4.type->get());
+    $$ = new VAArgInst($2.val, $4.type->get());
     delete $4.type;
     CHECK_FOR_ERROR
   }
   | VAARG_old ResolvedVal ',' Types {
     ObsoleteVarArgs = true;
-    const Type* ArgTy = $2->getType();
+    const Type* ArgTy = $2.val->getType();
     Function* NF = CurModule.CurrentModule->
       getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
 
@@ -2670,7 +2709,7 @@
     //b = vaarg foo, t
     AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
     CurBB->getInstList().push_back(foo);
-    CallInst* bar = new CallInst(NF, $2);
+    CallInst* bar = new CallInst(NF, $2.val);
     CurBB->getInstList().push_back(bar);
     CurBB->getInstList().push_back(new StoreInst(bar, foo));
     $$ = new VAArgInst(foo, $4.type->get());
@@ -2679,7 +2718,7 @@
   }
   | VANEXT_old ResolvedVal ',' Types {
     ObsoleteVarArgs = true;
-    const Type* ArgTy = $2->getType();
+    const Type* ArgTy = $2.val->getType();
     Function* NF = CurModule.CurrentModule->
       getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
 
@@ -2691,7 +2730,7 @@
     //b = load foo
     AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
     CurBB->getInstList().push_back(foo);
-    CallInst* bar = new CallInst(NF, $2);
+    CallInst* bar = new CallInst(NF, $2.val);
     CurBB->getInstList().push_back(bar);
     CurBB->getInstList().push_back(new StoreInst(bar, foo));
     Instruction* tmp = new VAArgInst(foo, $4.type->get());
@@ -2701,21 +2740,21 @@
     CHECK_FOR_ERROR
   }
   | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
-    if (!ExtractElementInst::isValidOperands($2, $4))
+    if (!ExtractElementInst::isValidOperands($2.val, $4.val))
       GEN_ERROR("Invalid extractelement operands!");
-    $$ = new ExtractElementInst($2, $4);
+    $$ = new ExtractElementInst($2.val, $4.val);
     CHECK_FOR_ERROR
   }
   | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
-    if (!InsertElementInst::isValidOperands($2, $4, $6))
+    if (!InsertElementInst::isValidOperands($2.val, $4.val, $6.val))
       GEN_ERROR("Invalid insertelement operands!");
-    $$ = new InsertElementInst($2, $4, $6);
+    $$ = new InsertElementInst($2.val, $4.val, $6.val);
     CHECK_FOR_ERROR
   }
   | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
-    if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
+    if (!ShuffleVectorInst::isValidOperands($2.val, $4.val, $6.val))
       GEN_ERROR("Invalid shufflevector operands!");
-    $$ = new ShuffleVectorInst($2, $4, $6);
+    $$ = new ShuffleVectorInst($2.val, $4.val, $6.val);
     CHECK_FOR_ERROR
   }
   | PHI_TOK PHIList {
@@ -2742,9 +2781,9 @@
       // Pull out the types of all of the arguments...
       std::vector<const Type*> ParamTypes;
       if ($6) {
-        for (std::vector<Value*>::iterator I = $6->begin(), E = $6->end();
+        for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
              I != E; ++I)
-          ParamTypes.push_back((*I)->getType());
+          ParamTypes.push_back((*I).val->getType());
       }
 
       bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
@@ -2775,17 +2814,30 @@
       //
       FunctionType::param_iterator I = Ty->param_begin();
       FunctionType::param_iterator E = Ty->param_end();
-      std::vector<Value*>::iterator ArgI = $6->begin(), ArgE = $6->end();
+      std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
 
-      for (; ArgI != ArgE && I != E; ++ArgI, ++I)
-        if ((*ArgI)->getType() != *I)
-          GEN_ERROR("Parameter " +(*ArgI)->getName()+ " is not of type '" +
-                         (*I)->getDescription() + "'!");
+      std::vector<Value*> args;
+      for (; ArgI != ArgE ; ++ArgI)
+        if (I == E) {
+          if (Ty->isVarArg()) {
+            args.push_back((*ArgI).val);
+          } else {
+            GEN_ERROR("Too many parameters for function of type " +
+              Ty->getDescription());
+          }
+        } else {
+          if ((*ArgI).val->getType() != *I) {
+            GEN_ERROR("Parameter " + (*ArgI).val->getName() + 
+                      " is not of type '" + (*I)->getDescription() + "'!");
+          } else
+            args.push_back((*ArgI).val);
+          ++I;
+        }
 
       if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
         GEN_ERROR("Invalid number of parameters detected!");
 
-      $$ = new CallInst(V, *$6);
+      $$ = new CallInst(V, args);
     }
     cast<CallInst>($$)->setTailCall($1);
     cast<CallInst>($$)->setCallingConv($2);
@@ -2804,7 +2856,7 @@
     $$ = $2; 
     CHECK_FOR_ERROR
   } | /* empty */ { 
-    $$ = new std::vector<Value*>(); 
+    $$ = new std::vector<ValueInfo>(); 
     CHECK_FOR_ERROR
   };
 
@@ -2842,10 +2894,10 @@
     delete $2.type;
   }
   | FREE ResolvedVal {
-    if (!isa<PointerType>($2->getType()))
+    if (!isa<PointerType>($2.val->getType()))
       GEN_ERROR("Trying to free nonpointer type " + 
-                     $2->getType()->getDescription() + "!");
-    $$ = new FreeInst($2);
+                     $2.val->getType()->getDescription() + "!");
+    $$ = new FreeInst($2.val);
     CHECK_FOR_ERROR
   }
 
@@ -2867,36 +2919,29 @@
       GEN_ERROR("Can't store to a nonpointer type: " +
                      ($5.type->get())->getDescription());
     const Type *ElTy = PT->getElementType();
-    if (ElTy != $3->getType())
-      GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
+    if (ElTy != $3.val->getType())
+      GEN_ERROR("Can't store '" + $3.val->getType()->getDescription() +
                      "' into space of type '" + ElTy->getDescription() + "'!");
 
     Value* tmpVal = getVal($5.type->get(), $6);
     CHECK_FOR_ERROR
-    $$ = new StoreInst($3, tmpVal, $1);
+    $$ = new StoreInst($3.val, tmpVal, $1);
     delete $5.type;
   }
   | GETELEMENTPTR Types ValueRef IndexList {
     if (!isa<PointerType>($2.type->get()))
       GEN_ERROR("getelementptr insn requires pointer operand!");
 
-    // LLVM 1.2 and earlier used ubyte struct indices.  Convert any ubyte struct
-    // indices to uint struct indices for compatibility.
-    generic_gep_type_iterator<std::vector<Value*>::iterator>
-      GTI = gep_type_begin($2.type->get(), $4->begin(), $4->end()),
-      GTE = gep_type_end($2.type->get(), $4->begin(), $4->end());
-    for (unsigned i = 0, e = $4->size(); i != e && GTI != GTE; ++i, ++GTI)
-      if (isa<StructType>(*GTI))        // Only change struct indices
-        if (ConstantInt *CUI = dyn_cast<ConstantInt>((*$4)[i]))
-          if (CUI->getType() == Type::UByteTy)
-            (*$4)[i] = ConstantExpr::getCast(CUI, Type::UIntTy);
+    std::vector<Value*> indices;
+    for (unsigned i = 0, e = $4->size(); i != e; ++i)
+      indices.push_back((*$4)[i].val);
 
-    if (!GetElementPtrInst::getIndexedType($2.type->get(), *$4, true))
+    if (!GetElementPtrInst::getIndexedType($2.type->get(), indices, true))
       GEN_ERROR("Invalid getelementptr indices for type '" +
                      $2.type->get()->getDescription()+ "'!");
     Value* tmpVal = getVal($2.type->get(), $3);
     CHECK_FOR_ERROR
-    $$ = new GetElementPtrInst(tmpVal, *$4);
+    $$ = new GetElementPtrInst(tmpVal, indices);
     delete $2.type; 
     delete $4;
   };


Index: llvm/lib/AsmParser/ParserInternals.h
diff -u llvm/lib/AsmParser/ParserInternals.h:1.48 llvm/lib/AsmParser/ParserInternals.h:1.49
--- llvm/lib/AsmParser/ParserInternals.h:1.48	Sun Nov 26 19:05:09 2006
+++ llvm/lib/AsmParser/ParserInternals.h	Tue Nov 28 01:28:14 2006
@@ -227,21 +227,30 @@
   isSignless
 };
 
-/// This structure is used to keep track of the signedness of the obsolete
+/// This type is used to keep track of the signedness of the obsolete
 /// integer types. Instead of creating an llvm::Type directly, the Lexer will
 /// create instances of TypeInfo which retains the signedness indication so
 /// it can be used by the parser for upgrade decisions.
-/// For example if "uint" is encountered then the type will be set "int32" 
-/// and the "signedness" will be "isUnsigned".  If the type is not obsolete 
-/// then "signedness" will be "isSignless".
+/// For example if "uint" is encountered then the "first" field will be set 
+/// to "int32" and the "second" field will be set to "isUnsigned".  If the 
+/// type is not obsolete then "second" will be set to "isSignless".
 struct TypeInfo {
-  llvm::PATypeHolder *type;
+  llvm::PATypeHolder* type;
   Signedness signedness;
 };
 
+/// This type is used to keep track of the signedness of values. Instead
+/// of creating llvm::Value directly, the parser will create ValueInfo which
+/// associates a Value* with a Signedness indication.
 struct ValueInfo {
-  std::vector<llvm::Value*> valuelist;
-  std::vector<Signedness>   signlist;
+  llvm::Value* val;
+  Signedness signedness;
+};
+
+/// This type is used to keep track of the signedness of constants.
+struct ConstInfo {
+  llvm::Constant *cnst;
+  Signedness signedness;
 };
 
 #endif






More information about the llvm-commits mailing list