Revert "Include optional subclass flags, such as inbounds, nsw, etc., ...", this

breaks MiniSAT on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81098 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 34 insertions, 93 deletions

diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index e79ca54..da6fe96 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -571,17 +571,13 @@ protected:
   // These private methods are used by the type resolution code to create
   // ConstantExprs in intermediate forms.
   static Constant *getTy(const Type *Ty, unsigned Opcode,
-                         Constant *C1, Constant *C2,
-                         unsigned Flags = 0);
+                         Constant *C1, Constant *C2);
   static Constant *getCompareTy(unsigned short pred, Constant *C1,
                                 Constant *C2);
   static Constant *getSelectTy(const Type *Ty,
                                Constant *C1, Constant *C2, Constant *C3);
   static Constant *getGetElementPtrTy(const Type *Ty, Constant *C,
                                       Value* const *Idxs, unsigned NumIdxs);
-  static Constant *getInBoundsGetElementPtrTy(const Type *Ty, Constant *C,
-                                              Value* const *Idxs,
-                                              unsigned NumIdxs);
   static Constant *getExtractElementTy(const Type *Ty, Constant *Val,
                                        Constant *Idx);
   static Constant *getInsertElementTy(const Type *Ty, Constant *Val,
@@ -722,8 +718,7 @@ public:
   /// get - Return a binary or shift operator constant expression,
   /// folding if possible.
   ///
-  static Constant *get(unsigned Opcode, Constant *C1, Constant *C2,
-                       unsigned Flags = 0);
+  static Constant *get(unsigned Opcode, Constant *C1, Constant *C2);
 
   /// @brief Return an ICmp or FCmp comparison operator constant expression.
   static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);
diff --git a/include/llvm/InstrTypes.h b/include/llvm/InstrTypes.h
index 032a1e7..35d7534 100644
--- a/include/llvm/InstrTypes.h
+++ b/include/llvm/InstrTypes.h
@@ -200,19 +200,19 @@ public:
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name = "") {
     BinaryOperator *BO = CreateAdd(V1, V2, Name);
-    BO->setHasNoSignedWrap(true);
+    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
     return BO;
   }
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name, BasicBlock *BB) {
     BinaryOperator *BO = CreateAdd(V1, V2, Name, BB);
-    BO->setHasNoSignedWrap(true);
+    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
     return BO;
   }
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name, Instruction *I) {
     BinaryOperator *BO = CreateAdd(V1, V2, Name, I);
-    BO->setHasNoSignedWrap(true);
+    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
     return BO;
   }
 
@@ -221,19 +221,19 @@ public:
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name = "") {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name);
-    BO->setIsExact(true);
+    cast<SDivOperator>(BO)->setIsExact(true);
     return BO;
   }
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name, BasicBlock *BB) {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name, BB);
-    BO->setIsExact(true);
+    cast<SDivOperator>(BO)->setIsExact(true);
     return BO;
   }
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name, Instruction *I) {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name, I);
-    BO->setIsExact(true);
+    cast<SDivOperator>(BO)->setIsExact(true);
     return BO;
   }
 
@@ -287,21 +287,6 @@ public:
   ///
   bool swapOperands();
 
-  /// setHasNoUnsignedWrap - Set or clear the nsw flag on this instruction,
-  /// which must be an operator which supports this flag. See LangRef.html
-  /// for the meaning of this flag.
-  void setHasNoUnsignedWrap(bool);
-
-  /// setHasNoSignedWrap - Set or clear the nsw flag on this instruction,
-  /// which must be an operator which supports this flag. See LangRef.html
-  /// for the meaning of this flag.
-  void setHasNoSignedWrap(bool);
-
-  /// setIsExact - Set or clear the exact flag on this instruction,
-  /// which must be an operator which supports this flag. See LangRef.html
-  /// for the meaning of this flag.
-  void setIsExact(bool);
-
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const BinaryOperator *) { return true; }
   static inline bool classof(const Instruction *I) {
diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h
index 57cff17..71f4738 100644
--- a/include/llvm/Instructions.h
+++ b/include/llvm/Instructions.h
@@ -496,7 +496,7 @@ public:
                                            Instruction *InsertBefore = 0) {
     GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
                                     NameStr, InsertBefore);
-    GEP->setIsInBounds(true);
+    cast<GEPOperator>(GEP)->setIsInBounds(true);
     return GEP;
   }
   template<typename InputIterator>
@@ -507,21 +507,21 @@ public:
                                            BasicBlock *InsertAtEnd) {
     GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
                                     NameStr, InsertAtEnd);
-    GEP->setIsInBounds(true);
+    cast<GEPOperator>(GEP)->setIsInBounds(true);
     return GEP;
   }
   static GetElementPtrInst *CreateInBounds(Value *Ptr, Value *Idx,
                                            const Twine &NameStr = "",
                                            Instruction *InsertBefore = 0) {
     GetElementPtrInst *GEP = Create(Ptr, Idx, NameStr, InsertBefore);
-    GEP->setIsInBounds(true);
+    cast<GEPOperator>(GEP)->setIsInBounds(true);
     return GEP;
   }
   static GetElementPtrInst *CreateInBounds(Value *Ptr, Value *Idx,
                                            const Twine &NameStr,
                                            BasicBlock *InsertAtEnd) {
     GetElementPtrInst *GEP = Create(Ptr, Idx, NameStr, InsertAtEnd);
-    GEP->setIsInBounds(true);
+    cast<GEPOperator>(GEP)->setIsInBounds(true);
     return GEP;
   }
 
@@ -602,10 +602,6 @@ public:
   /// a constant offset between them.
   bool hasAllConstantIndices() const;
 
-  /// setIsInBounds - Set or clear the inbounds flag on this GEP instruction.
-  /// See LangRef.html for the meaning of inbounds on a getelementptr.
-  void setIsInBounds(bool);
-
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const GetElementPtrInst *) { return true; }
   static inline bool classof(const Instruction *I) {
diff --git a/include/llvm/Operator.h b/include/llvm/Operator.h
index 06eb243..48ac09d 100644
--- a/include/llvm/Operator.h
+++ b/include/llvm/Operator.h
@@ -21,8 +21,6 @@
 namespace llvm {
 
 class GetElementPtrInst;
-class BinaryOperator;
-class ConstantExpr;
 
 /// Operator - This is a utility class that provides an abstraction for the
 /// common functionality between Instructions and ConstantExprs.
@@ -69,37 +67,24 @@ public:
 /// despite that operator having the potential for overflow.
 ///
 class OverflowingBinaryOperator : public Operator {
-public:
-  enum {
-    NoUnsignedWrap = (1 << 0),
-    NoSignedWrap   = (1 << 1)
-  };
-
-private:
   ~OverflowingBinaryOperator(); // do not implement
-
-  friend class BinaryOperator;
-  friend class ConstantExpr;
-  void setHasNoUnsignedWrap(bool B) {
-    SubclassOptionalData =
-      (SubclassOptionalData & ~NoUnsignedWrap) | (B * NoUnsignedWrap);
-  }
-  void setHasNoSignedWrap(bool B) {
-    SubclassOptionalData =
-      (SubclassOptionalData & ~NoSignedWrap) | (B * NoSignedWrap);
-  }
-
 public:
   /// hasNoUnsignedWrap - Test whether this operation is known to never
   /// undergo unsigned overflow, aka the nuw property.
   bool hasNoUnsignedWrap() const {
-    return SubclassOptionalData & NoUnsignedWrap;
+    return SubclassOptionalData & (1 << 0);
+  }
+  void setHasNoUnsignedWrap(bool B) {
+    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
   }
 
   /// hasNoSignedWrap - Test whether this operation is known to never
   /// undergo signed overflow, aka the nsw property.
   bool hasNoSignedWrap() const {
-    return SubclassOptionalData & NoSignedWrap;
+    return SubclassOptionalData & (1 << 1);
+  }
+  void setHasNoSignedWrap(bool B) {
+    SubclassOptionalData = (SubclassOptionalData & ~(1 << 1)) | (B << 1);
   }
 
   static inline bool classof(const OverflowingBinaryOperator *) { return true; }
@@ -176,25 +161,15 @@ public:
 /// SDivOperator - An Operator with opcode Instruction::SDiv.
 ///
 class SDivOperator : public Operator {
-public:
-  enum {
-    IsExact = (1 << 0)
-  };
-
-private:
   ~SDivOperator(); // do not implement
-
-  friend class BinaryOperator;
-  friend class ConstantExpr;
-  void setIsExact(bool B) {
-    SubclassOptionalData = (SubclassOptionalData & ~IsExact) | (B * IsExact);
-  }
-
 public:
   /// isExact - Test whether this division is known to be exact, with
   /// zero remainder.
   bool isExact() const {
-    return SubclassOptionalData & IsExact;
+    return SubclassOptionalData & (1 << 0);
+  }
+  void setIsExact(bool B) {
+    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
   }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
@@ -212,24 +187,15 @@ public:
 };
 
 class GEPOperator : public Operator {
-  enum {
-    IsInBounds = (1 << 0)
-  };
-
   ~GEPOperator(); // do not implement
-
-  friend class GetElementPtrInst;
-  friend class ConstantExpr;
-  void setIsInBounds(bool B) {
-    SubclassOptionalData =
-      (SubclassOptionalData & ~IsInBounds) | (B * IsInBounds);
-  }
-
 public:
   /// isInBounds - Test whether this is an inbounds GEP, as defined
   /// by LangRef.html.
   bool isInBounds() const {
-    return SubclassOptionalData & IsInBounds;
+    return SubclassOptionalData & (1 << 0);
+  }
+  void setIsInBounds(bool B) {
+    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
   }
 
   inline op_iterator       idx_begin()       { return op_begin()+1; }
diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index 415b8fb..fdc3aeb 100644
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -146,6 +146,12 @@ public:
   // Only use when in type resolution situations!
   void uncheckedReplaceAllUsesWith(Value *V);
 
+  /// clearOptionalData - Clear any optional optimization data from this Value.
+  /// Transformation passes must call this method whenever changing the IR
+  /// in a way that would affect the values produced by this Value, unless
+  /// it takes special care to ensure correctness in some other way.
+  void clearOptionalData() { SubclassOptionalData = 0; }
+
   //----------------------------------------------------------------------
   // Methods for handling the chain of uses of this Value.
   //
@@ -234,13 +240,6 @@ public:
     return SubclassID;
   }
 
-  /// getRawSubclassOptionalData - Return the raw optional flags value
-  /// contained in this value. This should only be used when testing two
-  /// Values for equivalence.
-  unsigned getRawSubclassOptionalData() const {
-    return SubclassOptionalData;
-  }
-
   /// hasSameSubclassOptionalData - Test whether the optional flags contained
   /// in this value are equal to the optional flags in the given value.
   bool hasSameSubclassOptionalData(const Value *V) const {