[llvm-commits] [llvm] r80998 - in /llvm/trunk: include/llvm/Constants.h include/llvm/InstrTypes.h include/llvm/Instructions.h include/llvm/Operator.h include/llvm/Value.h lib/AsmParser/LLParser.cpp lib/Bitcode/Reader/BitcodeReader.cpp lib/Transforms/Scalar/InstructionCombining.cpp lib/VMCore/Constants.cpp lib/VMCore/ConstantsContext.h lib/VMCore/Instructions.cpp test/Assembler/flags-plain.ll test/Assembler/flags-reversed.ll test/Assembler/flags-signed.ll test/Assembler/flags-unsigned.ll test/Assembler/flags.ll

Dan Gohman gohman at apple.com
Fri Sep 4 05:08:13 PDT 2009


Author: djg
Date: Fri Sep  4 07:08:11 2009
New Revision: 80998

URL: http://llvm.org/viewvc/llvm-project?rev=80998&view=rev
Log:
Include optional subclass flags, such as inbounds, nsw, etc., in the
Constant uniquing tables. This allows distinct ConstantExpr objects
with the same operation and different flags.

Even though a ConstantExpr "a + b" is either always overflowing or
never overflowing (due to being a ConstantExpr), it's still necessary
to be able to represent it both with and without overflow flags at
the same time within the IR, because the safety of the flag may
depend on the context of the use. If the constant really does overflow,
it wouldn't ever be safe to use with the flag set, however the use
may be in code that is never actually executed.

This also makes it possible to merge all the flags tests into a single test.

Removed:
    llvm/trunk/test/Assembler/flags-plain.ll
    llvm/trunk/test/Assembler/flags-reversed.ll
    llvm/trunk/test/Assembler/flags-signed.ll
    llvm/trunk/test/Assembler/flags-unsigned.ll
Modified:
    llvm/trunk/include/llvm/Constants.h
    llvm/trunk/include/llvm/InstrTypes.h
    llvm/trunk/include/llvm/Instructions.h
    llvm/trunk/include/llvm/Operator.h
    llvm/trunk/include/llvm/Value.h
    llvm/trunk/lib/AsmParser/LLParser.cpp
    llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp
    llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp
    llvm/trunk/lib/VMCore/Constants.cpp
    llvm/trunk/lib/VMCore/ConstantsContext.h
    llvm/trunk/lib/VMCore/Instructions.cpp
    llvm/trunk/test/Assembler/flags.ll

Modified: llvm/trunk/include/llvm/Constants.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Constants.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Constants.h (original)
+++ llvm/trunk/include/llvm/Constants.h Fri Sep  4 07:08:11 2009
@@ -571,13 +571,17 @@
   // 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);
+                         Constant *C1, Constant *C2,
+                         unsigned Flags = 0);
   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,
@@ -718,7 +722,8 @@
   /// get - Return a binary or shift operator constant expression,
   /// folding if possible.
   ///
-  static Constant *get(unsigned Opcode, Constant *C1, Constant *C2);
+  static Constant *get(unsigned Opcode, Constant *C1, Constant *C2,
+                       unsigned Flags = 0);
 
   /// @brief Return an ICmp or FCmp comparison operator constant expression.
   static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);

Modified: llvm/trunk/include/llvm/InstrTypes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/InstrTypes.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/include/llvm/InstrTypes.h (original)
+++ llvm/trunk/include/llvm/InstrTypes.h Fri Sep  4 07:08:11 2009
@@ -200,19 +200,19 @@
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name = "") {
     BinaryOperator *BO = CreateAdd(V1, V2, Name);
-    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
+    BO->setHasNoSignedWrap(true);
     return BO;
   }
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name, BasicBlock *BB) {
     BinaryOperator *BO = CreateAdd(V1, V2, Name, BB);
-    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
+    BO->setHasNoSignedWrap(true);
     return BO;
   }
   static BinaryOperator *CreateNSWAdd(Value *V1, Value *V2,
                                       const Twine &Name, Instruction *I) {
     BinaryOperator *BO = CreateAdd(V1, V2, Name, I);
-    cast<AddOperator>(BO)->setHasNoSignedWrap(true);
+    BO->setHasNoSignedWrap(true);
     return BO;
   }
 
@@ -221,19 +221,19 @@
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name = "") {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name);
-    cast<SDivOperator>(BO)->setIsExact(true);
+    BO->setIsExact(true);
     return BO;
   }
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name, BasicBlock *BB) {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name, BB);
-    cast<SDivOperator>(BO)->setIsExact(true);
+    BO->setIsExact(true);
     return BO;
   }
   static BinaryOperator *CreateExactSDiv(Value *V1, Value *V2,
                                          const Twine &Name, Instruction *I) {
     BinaryOperator *BO = CreateSDiv(V1, V2, Name, I);
-    cast<SDivOperator>(BO)->setIsExact(true);
+    BO->setIsExact(true);
     return BO;
   }
 
@@ -287,6 +287,21 @@
   ///
   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) {

Modified: llvm/trunk/include/llvm/Instructions.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Instructions.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Instructions.h (original)
+++ llvm/trunk/include/llvm/Instructions.h Fri Sep  4 07:08:11 2009
@@ -496,7 +496,7 @@
                                            Instruction *InsertBefore = 0) {
     GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
                                     NameStr, InsertBefore);
-    cast<GEPOperator>(GEP)->setIsInBounds(true);
+    GEP->setIsInBounds(true);
     return GEP;
   }
   template<typename InputIterator>
@@ -507,21 +507,21 @@
                                            BasicBlock *InsertAtEnd) {
     GetElementPtrInst *GEP = Create(Ptr, IdxBegin, IdxEnd,
                                     NameStr, InsertAtEnd);
-    cast<GEPOperator>(GEP)->setIsInBounds(true);
+    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);
-    cast<GEPOperator>(GEP)->setIsInBounds(true);
+    GEP->setIsInBounds(true);
     return GEP;
   }
   static GetElementPtrInst *CreateInBounds(Value *Ptr, Value *Idx,
                                            const Twine &NameStr,
                                            BasicBlock *InsertAtEnd) {
     GetElementPtrInst *GEP = Create(Ptr, Idx, NameStr, InsertAtEnd);
-    cast<GEPOperator>(GEP)->setIsInBounds(true);
+    GEP->setIsInBounds(true);
     return GEP;
   }
 
@@ -602,6 +602,10 @@
   /// 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) {

Modified: llvm/trunk/include/llvm/Operator.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Operator.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Operator.h (original)
+++ llvm/trunk/include/llvm/Operator.h Fri Sep  4 07:08:11 2009
@@ -21,6 +21,8 @@
 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.
@@ -67,24 +69,37 @@
 /// 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 & (1 << 0);
-  }
-  void setHasNoUnsignedWrap(bool B) {
-    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
+    return SubclassOptionalData & NoUnsignedWrap;
   }
 
   /// hasNoSignedWrap - Test whether this operation is known to never
   /// undergo signed overflow, aka the nsw property.
   bool hasNoSignedWrap() const {
-    return SubclassOptionalData & (1 << 1);
-  }
-  void setHasNoSignedWrap(bool B) {
-    SubclassOptionalData = (SubclassOptionalData & ~(1 << 1)) | (B << 1);
+    return SubclassOptionalData & NoSignedWrap;
   }
 
   static inline bool classof(const OverflowingBinaryOperator *) { return true; }
@@ -161,15 +176,25 @@
 /// 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 & (1 << 0);
-  }
-  void setIsExact(bool B) {
-    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
+    return SubclassOptionalData & IsExact;
   }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
@@ -187,15 +212,24 @@
 };
 
 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 & (1 << 0);
-  }
-  void setIsInBounds(bool B) {
-    SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
+    return SubclassOptionalData & IsInBounds;
   }
 
   inline op_iterator       idx_begin()       { return op_begin()+1; }

Modified: llvm/trunk/include/llvm/Value.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Value.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Value.h (original)
+++ llvm/trunk/include/llvm/Value.h Fri Sep  4 07:08:11 2009
@@ -146,12 +146,6 @@
   // 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.
   //
@@ -240,6 +234,13 @@
     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 {

Modified: llvm/trunk/lib/AsmParser/LLParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLParser.cpp?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/AsmParser/LLParser.cpp (original)
+++ llvm/trunk/lib/AsmParser/LLParser.cpp Fri Sep  4 07:08:11 2009
@@ -2095,13 +2095,11 @@
     if (!Val0->getType()->isIntOrIntVector() &&
         !Val0->getType()->isFPOrFPVector())
       return Error(ID.Loc,"constexpr requires integer, fp, or vector operands");
-    Constant *C = ConstantExpr::get(Opc, Val0, Val1);
-    if (NUW)
-      cast<OverflowingBinaryOperator>(C)->setHasNoUnsignedWrap(true);
-    if (NSW)
-      cast<OverflowingBinaryOperator>(C)->setHasNoSignedWrap(true);
-    if (Exact)
-      cast<SDivOperator>(C)->setIsExact(true);
+    unsigned Flags = 0;
+    if (NUW)   Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
+    if (NSW)   Flags |= OverflowingBinaryOperator::NoSignedWrap;
+    if (Exact) Flags |= SDivOperator::IsExact;
+    Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags);
     ID.ConstantVal = C;
     ID.Kind = ValID::t_Constant;
     return false;
@@ -2157,10 +2155,12 @@
                                              (Value**)(Elts.data() + 1),
                                              Elts.size() - 1))
         return Error(ID.Loc, "invalid indices for getelementptr");
-      ID.ConstantVal = ConstantExpr::getGetElementPtr(Elts[0],
-                                              Elts.data() + 1, Elts.size() - 1);
-      if (InBounds)
-        cast<GEPOperator>(ID.ConstantVal)->setIsInBounds(true);
+      ID.ConstantVal = InBounds ?
+        ConstantExpr::getInBoundsGetElementPtr(Elts[0],
+                                               Elts.data() + 1,
+                                               Elts.size() - 1) :
+        ConstantExpr::getGetElementPtr(Elts[0],
+                                       Elts.data() + 1, Elts.size() - 1);
     } else if (Opc == Instruction::Select) {
       if (Elts.size() != 3)
         return Error(ID.Loc, "expected three operands to select");
@@ -2681,9 +2681,9 @@
           return Error(ModifierLoc, "nsw only applies to integer operations");
       }
       if (NUW)
-        cast<OverflowingBinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
+        cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
       if (NSW)
-        cast<OverflowingBinaryOperator>(Inst)->setHasNoSignedWrap(true);
+        cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
     }
     return Result;
   }
@@ -2698,7 +2698,7 @@
     bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 1);
     if (!Result)
       if (Exact)
-        cast<SDivOperator>(Inst)->setIsExact(true);
+        cast<BinaryOperator>(Inst)->setIsExact(true);
     return Result;
   }
 
@@ -3501,7 +3501,7 @@
     return Error(Loc, "invalid getelementptr indices");
   Inst = GetElementPtrInst::Create(Ptr, Indices.begin(), Indices.end());
   if (InBounds)
-    cast<GEPOperator>(Inst)->setIsInBounds(true);
+    cast<GetElementPtrInst>(Inst)->setIsInBounds(true);
   return false;
 }
 

Modified: llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp (original)
+++ llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp Fri Sep  4 07:08:11 2009
@@ -883,19 +883,6 @@
   return false;
 }
 
-static void SetOptimizationFlags(Value *V, uint64_t Flags) {
-  if (OverflowingBinaryOperator *OBO =
-        dyn_cast<OverflowingBinaryOperator>(V)) {
-    if (Flags & (1 << bitc::OBO_NO_SIGNED_WRAP))
-      OBO->setHasNoSignedWrap(true);
-    if (Flags & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
-      OBO->setHasNoUnsignedWrap(true);
-  } else if (SDivOperator *Div = dyn_cast<SDivOperator>(V)) {
-    if (Flags & (1 << bitc::SDIV_EXACT))
-      Div->setIsExact(true);
-  }
-}
-
 bool BitcodeReader::ParseConstants() {
   if (Stream.EnterSubBlock(bitc::CONSTANTS_BLOCK_ID))
     return Error("Malformed block record");
@@ -1047,10 +1034,22 @@
       } else {
         Constant *LHS = ValueList.getConstantFwdRef(Record[1], CurTy);
         Constant *RHS = ValueList.getConstantFwdRef(Record[2], CurTy);
-        V = ConstantExpr::get(Opc, LHS, RHS);
+        unsigned Flags = 0;
+        if (Record.size() >= 4) {
+          if (Opc == Instruction::Add ||
+              Opc == Instruction::Sub ||
+              Opc == Instruction::Mul) {
+            if (Record[3] & (1 << bitc::OBO_NO_SIGNED_WRAP))
+              Flags |= OverflowingBinaryOperator::NoSignedWrap;
+            if (Record[3] & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
+              Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
+          } else if (Opc == Instruction::SDiv) {
+            if (Record[3] & (1 << bitc::SDIV_EXACT))
+              Flags |= SDivOperator::IsExact;
+          }
+        }
+        V = ConstantExpr::get(Opc, LHS, RHS, Flags);
       }
-      if (Record.size() >= 4)
-        SetOptimizationFlags(V, Record[3]);
       break;
     }  
     case bitc::CST_CODE_CE_CAST: {  // CE_CAST: [opcode, opty, opval]
@@ -1075,10 +1074,12 @@
         if (!ElTy) return Error("Invalid CE_GEP record");
         Elts.push_back(ValueList.getConstantFwdRef(Record[i+1], ElTy));
       }
-      V = ConstantExpr::getGetElementPtr(Elts[0], &Elts[1], 
-                                               Elts.size()-1);
       if (BitCode == bitc::CST_CODE_CE_INBOUNDS_GEP)
-        cast<GEPOperator>(V)->setIsInBounds(true);
+        V = ConstantExpr::getInBoundsGetElementPtr(Elts[0], &Elts[1],
+                                                   Elts.size()-1);
+      else
+        V = ConstantExpr::getGetElementPtr(Elts[0], &Elts[1],
+                                           Elts.size()-1);
       break;
     }
     case bitc::CST_CODE_CE_SELECT:  // CE_SELECT: [opval#, opval#, opval#]
@@ -1610,8 +1611,19 @@
       int Opc = GetDecodedBinaryOpcode(Record[OpNum++], LHS->getType());
       if (Opc == -1) return Error("Invalid BINOP record");
       I = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
-      if (OpNum < Record.size())
-        SetOptimizationFlags(I, Record[3]);
+      if (OpNum < Record.size()) {
+        if (Opc == Instruction::Add ||
+            Opc == Instruction::Sub ||
+            Opc == Instruction::Mul) {
+          if (Record[3] & (1 << bitc::OBO_NO_SIGNED_WRAP))
+            cast<BinaryOperator>(I)->setHasNoSignedWrap(true);
+          if (Record[3] & (1 << bitc::OBO_NO_UNSIGNED_WRAP))
+            cast<BinaryOperator>(I)->setHasNoUnsignedWrap(true);
+        } else if (Opc == Instruction::SDiv) {
+          if (Record[3] & (1 << bitc::SDIV_EXACT))
+            cast<BinaryOperator>(I)->setIsExact(true);
+        }
+      }
       break;
     }
     case bitc::FUNC_CODE_INST_CAST: {    // CAST: [opval, opty, destty, castopc]
@@ -1645,7 +1657,7 @@
 
       I = GetElementPtrInst::Create(BasePtr, GEPIdx.begin(), GEPIdx.end());
       if (BitCode == bitc::FUNC_CODE_INST_INBOUNDS_GEP)
-        cast<GEPOperator>(I)->setIsInBounds(true);
+        cast<GetElementPtrInst>(I)->setIsInBounds(true);
       break;
     }
       

Modified: llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp Fri Sep  4 07:08:11 2009
@@ -8086,11 +8086,11 @@
           // If we were able to index down into an element, create the GEP
           // and bitcast the result.  This eliminates one bitcast, potentially
           // two.
-          Value *NGEP = Builder->CreateGEP(OrigBase, NewIndices.begin(),
-                                           NewIndices.end());
+          Value *NGEP = cast<GEPOperator>(GEP)->isInBounds() ?
+            Builder->CreateInBoundsGEP(OrigBase,
+                                       NewIndices.begin(), NewIndices.end()) :
+            Builder->CreateGEP(OrigBase, NewIndices.begin(), NewIndices.end());
           NGEP->takeName(GEP);
-          if (isa<Instruction>(NGEP) && cast<GEPOperator>(GEP)->isInBounds())
-            cast<GEPOperator>(NGEP)->setIsInBounds(true);
           
           if (isa<BitCastInst>(CI))
             return new BitCastInst(NGEP, CI.getType());
@@ -8805,11 +8805,8 @@
     // If we found a path from the src to dest, create the getelementptr now.
     if (SrcElTy == DstElTy) {
       SmallVector<Value*, 8> Idxs(NumZeros+1, ZeroUInt);
-      Instruction *GEP = GetElementPtrInst::Create(Src,
-                                                   Idxs.begin(), Idxs.end(), "",
-                                                   ((Instruction*) NULL));
-      cast<GEPOperator>(GEP)->setIsInBounds(true);
-      return GEP;
+      return GetElementPtrInst::CreateInBounds(Src, Idxs.begin(), Idxs.end(), "",
+                                               ((Instruction*) NULL));
     }
   }
 
@@ -10481,12 +10478,11 @@
   }
   
   Value *Base = FixedOperands[0];
-  GetElementPtrInst *GEP =
+  return cast<GEPOperator>(FirstInst)->isInBounds() ?
+    GetElementPtrInst::CreateInBounds(Base, FixedOperands.begin()+1,
+                                      FixedOperands.end()) :
     GetElementPtrInst::Create(Base, FixedOperands.begin()+1,
                               FixedOperands.end());
-  if (cast<GEPOperator>(FirstInst)->isInBounds())
-    cast<GEPOperator>(GEP)->setIsInBounds(true);
-  return GEP;
 }
 
 
@@ -10889,14 +10885,13 @@
       Indices.append(GEP.idx_begin()+1, GEP.idx_end());
     }
 
-    if (!Indices.empty()) {
-      GetElementPtrInst *NewGEP =
+    if (!Indices.empty())
+      return (cast<GEPOperator>(&GEP)->isInBounds() &&
+              Src->isInBounds()) ?
+        GetElementPtrInst::CreateInBounds(Src->getOperand(0), Indices.begin(),
+                                          Indices.end(), GEP.getName()) :
         GetElementPtrInst::Create(Src->getOperand(0), Indices.begin(),
                                   Indices.end(), GEP.getName());
-      if (cast<GEPOperator>(&GEP)->isInBounds() && Src->isInBounds())
-        cast<GEPOperator>(NewGEP)->setIsInBounds(true);
-      return NewGEP;
-    }
   }
   
   // Handle gep(bitcast x) and gep(gep x, 0, 0, 0).
@@ -10926,12 +10921,11 @@
         if (CATy->getElementType() == XTy->getElementType()) {
           // -> GEP i8* X, ...
           SmallVector<Value*, 8> Indices(GEP.idx_begin()+1, GEP.idx_end());
-          GetElementPtrInst *NewGEP =
+          return cast<GEPOperator>(&GEP)->isInBounds() ?
+            GetElementPtrInst::CreateInBounds(X, Indices.begin(), Indices.end(),
+                                              GEP.getName()) :
             GetElementPtrInst::Create(X, Indices.begin(), Indices.end(),
                                       GEP.getName());
-          if (cast<GEPOperator>(&GEP)->isInBounds())
-            cast<GEPOperator>(NewGEP)->setIsInBounds(true);
-          return NewGEP;
         }
         
         if (const ArrayType *XATy = dyn_cast<ArrayType>(XTy->getElementType())){
@@ -10959,10 +10953,9 @@
         Value *Idx[2];
         Idx[0] = Constant::getNullValue(Type::getInt32Ty(*Context));
         Idx[1] = GEP.getOperand(1);
-        Value *NewGEP =
+        Value *NewGEP = cast<GEPOperator>(&GEP)->isInBounds() ?
+          Builder->CreateInBoundsGEP(X, Idx, Idx + 2, GEP.getName()) :
           Builder->CreateGEP(X, Idx, Idx + 2, GEP.getName());
-        if (cast<GEPOperator>(&GEP)->isInBounds())
-          cast<GEPOperator>(NewGEP)->setIsInBounds(true);
         // V and GEP are both pointer types --> BitCast
         return new BitCastInst(NewGEP, GEP.getType());
       }
@@ -11019,9 +11012,9 @@
           Value *Idx[2];
           Idx[0] = Constant::getNullValue(Type::getInt32Ty(*Context));
           Idx[1] = NewIdx;
-          Value *NewGEP = Builder->CreateGEP(X, Idx, Idx + 2, GEP.getName());
-          if (cast<GEPOperator>(&GEP)->isInBounds())
-            cast<GEPOperator>(NewGEP)->setIsInBounds(true);
+          Value *NewGEP = cast<GEPOperator>(&GEP)->isInBounds() ?
+            Builder->CreateInBoundsGEP(X, Idx, Idx + 2, GEP.getName()) :
+            Builder->CreateGEP(X, Idx, Idx + 2, GEP.getName());
           // The NewGEP must be pointer typed, so must the old one -> BitCast
           return new BitCastInst(NewGEP, GEP.getType());
         }
@@ -11069,10 +11062,11 @@
       const Type *InTy =
         cast<PointerType>(BCI->getOperand(0)->getType())->getElementType();
       if (FindElementAtOffset(InTy, Offset, NewIndices, TD, Context)) {
-        Value *NGEP = Builder->CreateGEP(BCI->getOperand(0), NewIndices.begin(),
-                                         NewIndices.end());
-        if (cast<GEPOperator>(&GEP)->isInBounds())
-          cast<GEPOperator>(NGEP)->setIsInBounds(true);
+        Value *NGEP = cast<GEPOperator>(&GEP)->isInBounds() ?
+          Builder->CreateInBoundsGEP(BCI->getOperand(0), NewIndices.begin(),
+                                     NewIndices.end()) :
+          Builder->CreateGEP(BCI->getOperand(0), NewIndices.begin(),
+                             NewIndices.end());
         
         if (NGEP->getType() == GEP.getType())
           return ReplaceInstUsesWith(GEP, NGEP);
@@ -11115,9 +11109,8 @@
       Value *Idx[2];
       Idx[0] = NullIdx;
       Idx[1] = NullIdx;
-      Value *V = GetElementPtrInst::Create(New, Idx, Idx + 2,
-                                           New->getName()+".sub", It);
-      cast<GEPOperator>(V)->setIsInBounds(true);
+      Value *V = GetElementPtrInst::CreateInBounds(New, Idx, Idx + 2,
+                                                   New->getName()+".sub", It);
 
       // Now make everything use the getelementptr instead of the original
       // allocation.
@@ -11486,11 +11479,9 @@
   
   // SIOp0 is a pointer to aggregate and this is a store to the first field,
   // emit a GEP to index into its first field.
-  if (!NewGEPIndices.empty()) {
-    CastOp = IC.Builder->CreateGEP(CastOp, NewGEPIndices.begin(),
-                                   NewGEPIndices.end());
-    cast<GEPOperator>(CastOp)->setIsInBounds(true);
-  }
+  if (!NewGEPIndices.empty())
+    CastOp = IC.Builder->CreateInBoundsGEP(CastOp, NewGEPIndices.begin(),
+                                           NewGEPIndices.end());
   
   NewCast = IC.Builder->CreateCast(opcode, SIOp0, CastDstTy,
                                    SIOp0->getName()+".c");
@@ -12160,8 +12151,7 @@
                                             PointerType::get(EI.getType(), AS),
                                             I->getOperand(0)->getName());
         Value *GEP =
-          Builder->CreateGEP(Ptr, EI.getOperand(1), I->getName()+".gep");
-        cast<GEPOperator>(GEP)->setIsInBounds(true);
+          Builder->CreateInBoundsGEP(Ptr, EI.getOperand(1), I->getName()+".gep");
         
         LoadInst *Load = Builder->CreateLoad(GEP, "tmp");
 

Modified: llvm/trunk/lib/VMCore/Constants.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Constants.cpp?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/Constants.cpp (original)
+++ llvm/trunk/lib/VMCore/Constants.cpp Fri Sep  4 07:08:11 2009
@@ -632,21 +632,13 @@
 }
 
 Constant* ConstantExpr::getNSWAdd(Constant* C1, Constant* C2) {
-  Constant *C = getAdd(C1, C2);
-  // Set nsw attribute, assuming constant folding didn't eliminate the
-  // Add.
-  if (AddOperator *Add = dyn_cast<AddOperator>(C))
-    Add->setHasNoSignedWrap(true);
-  return C;
+  return getTy(C1->getType(), Instruction::Add, C1, C2,
+               OverflowingBinaryOperator::NoSignedWrap);
 }
 
 Constant* ConstantExpr::getExactSDiv(Constant* C1, Constant* C2) {
-  Constant *C = getSDiv(C1, C2);
-  // Set exact attribute, assuming constant folding didn't eliminate the
-  // SDiv.
-  if (SDivOperator *SDiv = dyn_cast<SDivOperator>(C))
-    SDiv->setIsExact(true);
-  return C;
+  return getTy(C1->getType(), Instruction::SDiv, C1, C2,
+               SDivOperator::IsExact);
 }
 
 // Utility function for determining if a ConstantExpr is a CastOp or not. This
@@ -729,15 +721,19 @@
     for (unsigned i = 1, e = getNumOperands(); i != e; ++i)
       Ops[i-1] = getOperand(i);
     if (OpNo == 0)
-      return ConstantExpr::getGetElementPtr(Op, &Ops[0], Ops.size());
+      return cast<GEPOperator>(this)->isInBounds() ?
+        ConstantExpr::getInBoundsGetElementPtr(Op, &Ops[0], Ops.size()) :
+        ConstantExpr::getGetElementPtr(Op, &Ops[0], Ops.size());
     Ops[OpNo-1] = Op;
-    return ConstantExpr::getGetElementPtr(getOperand(0), &Ops[0], Ops.size());
+    return cast<GEPOperator>(this)->isInBounds() ?
+      ConstantExpr::getInBoundsGetElementPtr(getOperand(0), &Ops[0], Ops.size()) :
+      ConstantExpr::getGetElementPtr(getOperand(0), &Ops[0], Ops.size());
   }
   default:
     assert(getNumOperands() == 2 && "Must be binary operator?");
     Op0 = (OpNo == 0) ? Op : getOperand(0);
     Op1 = (OpNo == 1) ? Op : getOperand(1);
-    return ConstantExpr::get(getOpcode(), Op0, Op1);
+    return ConstantExpr::get(getOpcode(), Op0, Op1, SubclassData);
   }
 }
 
@@ -779,13 +775,15 @@
   case Instruction::ShuffleVector:
     return ConstantExpr::getShuffleVector(Ops[0], Ops[1], Ops[2]);
   case Instruction::GetElementPtr:
-    return ConstantExpr::getGetElementPtr(Ops[0], &Ops[1], NumOps-1);
+    return cast<GEPOperator>(this)->isInBounds() ?
+      ConstantExpr::getInBoundsGetElementPtr(Ops[0], &Ops[1], NumOps-1) :
+      ConstantExpr::getGetElementPtr(Ops[0], &Ops[1], NumOps-1);
   case Instruction::ICmp:
   case Instruction::FCmp:
     return ConstantExpr::getCompare(getPredicate(), Ops[0], Ops[1]);
   default:
     assert(getNumOperands() == 2 && "Must be binary operator?");
-    return ConstantExpr::get(getOpcode(), Ops[0], Ops[1]);
+    return ConstantExpr::get(getOpcode(), Ops[0], Ops[1], SubclassData);
   }
 }
 
@@ -1031,8 +1029,9 @@
   Operands.reserve(CE->getNumOperands());
   for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i)
     Operands.push_back(cast<Constant>(CE->getOperand(i)));
-  return ExprMapKeyType(CE->getOpcode(), Operands, 
+  return ExprMapKeyType(CE->getOpcode(), Operands,
       CE->isCompare() ? CE->getPredicate() : 0,
+      CE->getRawSubclassOptionalData(),
       CE->hasIndices() ?
         CE->getIndices() : SmallVector<unsigned, 4>());
 }
@@ -1280,7 +1279,8 @@
 }
 
 Constant *ConstantExpr::getTy(const Type *ReqTy, unsigned Opcode,
-                              Constant *C1, Constant *C2) {
+                              Constant *C1, Constant *C2,
+                              unsigned Flags) {
   // Check the operands for consistency first
   assert(Opcode >= Instruction::BinaryOpsBegin &&
          Opcode <  Instruction::BinaryOpsEnd   &&
@@ -1294,7 +1294,7 @@
       return FC;          // Fold a few common cases...
 
   std::vector<Constant*> argVec(1, C1); argVec.push_back(C2);
-  ExprMapKeyType Key(Opcode, argVec);
+  ExprMapKeyType Key(Opcode, argVec, 0, Flags);
   
   LLVMContextImpl *pImpl = ReqTy->getContext().pImpl;
   
@@ -1322,7 +1322,8 @@
   }
 }
 
-Constant *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2) {
+Constant *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2,
+                            unsigned Flags) {
   // API compatibility: Adjust integer opcodes to floating-point opcodes.
   if (C1->getType()->isFPOrFPVector()) {
     if (Opcode == Instruction::Add) Opcode = Instruction::FAdd;
@@ -1387,7 +1388,7 @@
   }
 #endif
 
-  return getTy(C1->getType(), Opcode, C1, C2);
+  return getTy(C1->getType(), Opcode, C1, C2, Flags);
 }
 
 Constant* ConstantExpr::getSizeOf(const Type* Ty) {
@@ -1481,6 +1482,36 @@
   return pImpl->ExprConstants.getOrCreate(ReqTy, Key);
 }
 
+Constant *ConstantExpr::getInBoundsGetElementPtrTy(const Type *ReqTy,
+                                                   Constant *C,
+                                                   Value* const *Idxs,
+                                                   unsigned NumIdx) {
+  assert(GetElementPtrInst::getIndexedType(C->getType(), Idxs,
+                                           Idxs+NumIdx) ==
+         cast<PointerType>(ReqTy)->getElementType() &&
+         "GEP indices invalid!");
+
+  if (Constant *FC = ConstantFoldGetElementPtr(
+                              ReqTy->getContext(), C, (Constant**)Idxs, NumIdx))
+    return FC;          // Fold a few common cases...
+
+  assert(isa<PointerType>(C->getType()) &&
+         "Non-pointer type for constant GetElementPtr expression");
+  // Look up the constant in the table first to ensure uniqueness
+  std::vector<Constant*> ArgVec;
+  ArgVec.reserve(NumIdx+1);
+  ArgVec.push_back(C);
+  for (unsigned i = 0; i != NumIdx; ++i)
+    ArgVec.push_back(cast<Constant>(Idxs[i]));
+  const ExprMapKeyType Key(Instruction::GetElementPtr, ArgVec, 0,
+                           GEPOperator::IsInBounds);
+
+  LLVMContextImpl *pImpl = ReqTy->getContext().pImpl;
+
+  // Implicitly locked.
+  return pImpl->ExprConstants.getOrCreate(ReqTy, Key);
+}
+
 Constant *ConstantExpr::getGetElementPtr(Constant *C, Value* const *Idxs,
                                          unsigned NumIdx) {
   // Get the result type of the getelementptr!
@@ -1494,12 +1525,12 @@
 Constant *ConstantExpr::getInBoundsGetElementPtr(Constant *C,
                                                  Value* const *Idxs,
                                                  unsigned NumIdx) {
-  Constant *Result = getGetElementPtr(C, Idxs, NumIdx);
-  // Set in bounds attribute, assuming constant folding didn't eliminate the
-  // GEP.
-  if (GEPOperator *GEP = dyn_cast<GEPOperator>(Result))
-    GEP->setIsInBounds(true);
-  return Result;
+  // Get the result type of the getelementptr!
+  const Type *Ty = 
+    GetElementPtrInst::getIndexedType(C->getType(), Idxs, Idxs+NumIdx);
+  assert(Ty && "GEP indices invalid!");
+  unsigned As = cast<PointerType>(C->getType())->getAddressSpace();
+  return getInBoundsGetElementPtrTy(PointerType::get(Ty, As), C, Idxs, NumIdx);
 }
 
 Constant *ConstantExpr::getGetElementPtr(Constant *C, Constant* const *Idxs,
@@ -2104,7 +2135,7 @@
     Constant *C2 = getOperand(1);
     if (C1 == From) C1 = To;
     if (C2 == From) C2 = To;
-    Replacement = ConstantExpr::get(getOpcode(), C1, C2);
+    Replacement = ConstantExpr::get(getOpcode(), C1, C2, SubclassData);
   } else {
     llvm_unreachable("Unknown ConstantExpr type!");
     return;

Modified: llvm/trunk/lib/VMCore/ConstantsContext.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/ConstantsContext.h?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/ConstantsContext.h (original)
+++ llvm/trunk/lib/VMCore/ConstantsContext.h Fri Sep  4 07:08:11 2009
@@ -53,10 +53,12 @@
   void *operator new(size_t s) {
     return User::operator new(s, 2);
   }
-  BinaryConstantExpr(unsigned Opcode, Constant *C1, Constant *C2)
+  BinaryConstantExpr(unsigned Opcode, Constant *C1, Constant *C2,
+                     unsigned Flags)
     : ConstantExpr(C1->getType(), Opcode, &Op<0>(), 2) {
     Op<0>() = C1;
     Op<1>() = C2;
+    SubclassOptionalData = Flags;
   }
   /// Transparently provide more efficient getOperand methods.
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -206,9 +208,12 @@
 public:
   static GetElementPtrConstantExpr *Create(Constant *C,
                                            const std::vector<Constant*>&IdxList,
-                                           const Type *DestTy) {
-    return
+                                           const Type *DestTy,
+                                           unsigned Flags) {
+    GetElementPtrConstantExpr *Result =
       new(IdxList.size() + 1) GetElementPtrConstantExpr(C, IdxList, DestTy);
+    Result->SubclassOptionalData = Flags;
+    return Result;
   }
   /// Transparently provide more efficient getOperand methods.
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -291,26 +296,32 @@
 
   ExprMapKeyType(unsigned opc,
       const std::vector<Constant*> &ops,
-      unsigned short pred = 0,
+      unsigned short flags = 0,
+      unsigned short optionalflags = 0,
       const IndexList &inds = IndexList())
-        : opcode(opc), predicate(pred), operands(ops), indices(inds) {}
-  uint16_t opcode;
-  uint16_t predicate;
+        : opcode(opc), subclassoptionaldata(optionalflags), subclassdata(flags),
+        operands(ops), indices(inds) {}
+  uint8_t opcode;
+  uint8_t subclassoptionaldata;
+  uint16_t subclassdata;
   std::vector<Constant*> operands;
   IndexList indices;
   bool operator==(const ExprMapKeyType& that) const {
     return this->opcode == that.opcode &&
-           this->predicate == that.predicate &&
+           this->subclassdata == that.subclassdata &&
+           this->subclassoptionaldata == that.subclassoptionaldata &&
            this->operands == that.operands &&
            this->indices == that.indices;
   }
   bool operator<(const ExprMapKeyType & that) const {
-    return this->opcode < that.opcode ||
-      (this->opcode == that.opcode && this->predicate < that.predicate) ||
-      (this->opcode == that.opcode && this->predicate == that.predicate &&
-       this->operands < that.operands) ||
-      (this->opcode == that.opcode && this->predicate == that.predicate &&
-       this->operands == that.operands && this->indices < that.indices);
+    if (this->opcode != that.opcode) return this->opcode < that.opcode;
+    if (this->operands != that.operands) return this->operands < that.operands;
+    if (this->subclassdata != that.subclassdata)
+      return this->subclassdata < that.subclassdata;
+    if (this->subclassoptionaldata != that.subclassoptionaldata)
+      return this->subclassoptionaldata < that.subclassoptionaldata;
+    if (this->indices != that.indices) return this->indices < that.indices;
+    return false;
   }
 
   bool operator!=(const ExprMapKeyType& that) const {
@@ -354,7 +365,8 @@
       return new UnaryConstantExpr(V.opcode, V.operands[0], Ty);
     if ((V.opcode >= Instruction::BinaryOpsBegin &&
          V.opcode < Instruction::BinaryOpsEnd))
-      return new BinaryConstantExpr(V.opcode, V.operands[0], V.operands[1]);
+      return new BinaryConstantExpr(V.opcode, V.operands[0], V.operands[1],
+                                    V.subclassoptionaldata);
     if (V.opcode == Instruction::Select)
       return new SelectConstantExpr(V.operands[0], V.operands[1], 
                                     V.operands[2]);
@@ -373,17 +385,18 @@
       return new ExtractValueConstantExpr(V.operands[0], V.indices, Ty);
     if (V.opcode == Instruction::GetElementPtr) {
       std::vector<Constant*> IdxList(V.operands.begin()+1, V.operands.end());
-      return GetElementPtrConstantExpr::Create(V.operands[0], IdxList, Ty);
+      return GetElementPtrConstantExpr::Create(V.operands[0], IdxList, Ty,
+                                               V.subclassoptionaldata);
     }
 
     // The compare instructions are weird. We have to encode the predicate
     // value and it is combined with the instruction opcode by multiplying
     // the opcode by one hundred. We must decode this to get the predicate.
     if (V.opcode == Instruction::ICmp)
-      return new CompareConstantExpr(Ty, Instruction::ICmp, V.predicate, 
+      return new CompareConstantExpr(Ty, Instruction::ICmp, V.subclassdata,
                                      V.operands[0], V.operands[1]);
     if (V.opcode == Instruction::FCmp) 
-      return new CompareConstantExpr(Ty, Instruction::FCmp, V.predicate, 
+      return new CompareConstantExpr(Ty, Instruction::FCmp, V.subclassdata,
                                      V.operands[0], V.operands[1]);
     llvm_unreachable("Invalid ConstantExpr!");
     return 0;

Modified: llvm/trunk/lib/VMCore/Instructions.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Instructions.cpp?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/Instructions.cpp (original)
+++ llvm/trunk/lib/VMCore/Instructions.cpp Fri Sep  4 07:08:11 2009
@@ -1171,6 +1171,9 @@
   return true;
 }
 
+void GetElementPtrInst::setIsInBounds(bool B) {
+  cast<GEPOperator>(this)->setIsInBounds(B);
+}
 
 //===----------------------------------------------------------------------===//
 //                           ExtractElementInst Implementation
@@ -1716,6 +1719,18 @@
   return false;
 }
 
+void BinaryOperator::setHasNoUnsignedWrap(bool b) {
+  cast<OverflowingBinaryOperator>(this)->setHasNoUnsignedWrap(b);
+}
+
+void BinaryOperator::setHasNoSignedWrap(bool b) {
+  cast<OverflowingBinaryOperator>(this)->setHasNoSignedWrap(b);
+}
+
+void BinaryOperator::setIsExact(bool b) {
+  cast<SDivOperator>(this)->setIsExact(b);
+}
+
 //===----------------------------------------------------------------------===//
 //                                CastInst Class
 //===----------------------------------------------------------------------===//

Removed: llvm/trunk/test/Assembler/flags-plain.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/flags-plain.ll?rev=80997&view=auto

==============================================================================
--- llvm/trunk/test/Assembler/flags-plain.ll (original)
+++ llvm/trunk/test/Assembler/flags-plain.ll (removed)
@@ -1,28 +0,0 @@
-; RUN: llvm-as < %s | llvm-dis | FileCheck %s
-
- at addr = external global i64
-
-define i64 @add_plain_ce() {
-; CHECK: ret i64 add (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 add (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @sub_plain_ce() {
-; CHECK: ret i64 sub (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 sub (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @mul_plain_ce() {
-; CHECK: ret i64 mul (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 mul (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @sdiv_plain_ce() {
-; CHECK: ret i64 sdiv (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 sdiv (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64* @gep_plain_ce() {
-; CHECK: ret i64* getelementptr (i64* @addr, i64 171)
-        ret i64* getelementptr (i64* @addr, i64 171)
-}

Removed: llvm/trunk/test/Assembler/flags-reversed.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/flags-reversed.ll?rev=80997&view=auto

==============================================================================
--- llvm/trunk/test/Assembler/flags-reversed.ll (original)
+++ llvm/trunk/test/Assembler/flags-reversed.ll (removed)
@@ -1,18 +0,0 @@
-; RUN: llvm-as < %s | llvm-dis | FileCheck %s
-
- at addr = external global i64
-
-define i64 @add_both_reversed_ce() {
-; CHECK: ret i64 add nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 add nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @sub_both_reversed_ce() {
-; CHECK: ret i64 sub nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 sub nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @mul_both_reversed_ce() {
-; CHECK: ret i64 mul nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 mul nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}

Removed: llvm/trunk/test/Assembler/flags-signed.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/flags-signed.ll?rev=80997&view=auto

==============================================================================
--- llvm/trunk/test/Assembler/flags-signed.ll (original)
+++ llvm/trunk/test/Assembler/flags-signed.ll (removed)
@@ -1,18 +0,0 @@
-; RUN: llvm-as < %s | llvm-dis | FileCheck %s
-
- at addr = external global i64
-
-define i64 @add_signed_ce() {
-; CHECK: ret i64 add nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 add nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @sub_signed_ce() {
-; CHECK: ret i64 sub nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 sub nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @mul_signed_ce() {
-; CHECK: ret i64 mul nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 mul nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}

Removed: llvm/trunk/test/Assembler/flags-unsigned.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/flags-unsigned.ll?rev=80997&view=auto

==============================================================================
--- llvm/trunk/test/Assembler/flags-unsigned.ll (original)
+++ llvm/trunk/test/Assembler/flags-unsigned.ll (removed)
@@ -1,18 +0,0 @@
-; RUN: llvm-as < %s | llvm-dis | FileCheck %s
-
- at addr = external global i64
-
-define i64 @add_unsigned_ce() {
-; CHECK: ret i64 add nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 add nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @sub_unsigned_ce() {
-; CHECK: ret i64 sub nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 sub nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}
-
-define i64 @mul_unsigned_ce() {
-; CHECK: ret i64 mul nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-	ret i64 mul nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
-}

Modified: llvm/trunk/test/Assembler/flags.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/flags.ll?rev=80998&r1=80997&r2=80998&view=diff

==============================================================================
--- llvm/trunk/test/Assembler/flags.ll (original)
+++ llvm/trunk/test/Assembler/flags.ll Fri Sep  4 07:08:11 2009
@@ -141,4 +141,72 @@
         ret i64* getelementptr inbounds (i64* @addr, i64 171)
 }
 
+define i64 @add_plain_ce() {
+; CHECK: ret i64 add (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 add (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @sub_plain_ce() {
+; CHECK: ret i64 sub (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 sub (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @mul_plain_ce() {
+; CHECK: ret i64 mul (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 mul (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @sdiv_plain_ce() {
+; CHECK: ret i64 sdiv (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 sdiv (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64* @gep_plain_ce() {
+; CHECK: ret i64* getelementptr (i64* @addr, i64 171)
+        ret i64* getelementptr (i64* @addr, i64 171)
+}
+
+define i64 @add_both_reversed_ce() {
+; CHECK: ret i64 add nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 add nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @sub_both_reversed_ce() {
+; CHECK: ret i64 sub nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 sub nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
 
+define i64 @mul_both_reversed_ce() {
+; CHECK: ret i64 mul nuw nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 mul nsw nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @add_signed_ce() {
+; CHECK: ret i64 add nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 add nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @sub_signed_ce() {
+; CHECK: ret i64 sub nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 sub nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @mul_signed_ce() {
+; CHECK: ret i64 mul nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 mul nsw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @add_unsigned_ce() {
+; CHECK: ret i64 add nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 add nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @sub_unsigned_ce() {
+; CHECK: ret i64 sub nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 sub nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}
+
+define i64 @mul_unsigned_ce() {
+; CHECK: ret i64 mul nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+	ret i64 mul nuw (i64 ptrtoint (i64* @addr to i64), i64 91)
+}





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