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			1178 lines
		
	
	
		
			47 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1178 lines
		
	
	
		
			47 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//===---- llvm/Support/IRBuilder.h - Builder for LLVM Instrs ----*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the IRBuilder class, which is used as a convenient way
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// to create LLVM instructions with a consistent and simplified interface.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_IRBUILDER_H
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#define LLVM_SUPPORT_IRBUILDER_H
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#include "llvm/Instructions.h"
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#include "llvm/BasicBlock.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/ConstantFolder.h"
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namespace llvm {
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  class MDNode;
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/// IRBuilderDefaultInserter - This provides the default implementation of the
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/// IRBuilder 'InsertHelper' method that is called whenever an instruction is
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/// created by IRBuilder and needs to be inserted.  By default, this inserts the
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/// instruction at the insertion point.
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template <bool preserveNames = true>
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class IRBuilderDefaultInserter {
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protected:
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  void InsertHelper(Instruction *I, const Twine &Name,
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                    BasicBlock *BB, BasicBlock::iterator InsertPt) const {
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    if (BB) BB->getInstList().insert(InsertPt, I);
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    if (preserveNames)
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      I->setName(Name);
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  }
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};
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/// IRBuilderBase - Common base class shared among various IRBuilders.
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class IRBuilderBase {
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  DebugLoc CurDbgLocation;
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protected:
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  BasicBlock *BB;
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  BasicBlock::iterator InsertPt;
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  LLVMContext &Context;
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public:
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  IRBuilderBase(LLVMContext &context)
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    : Context(context) {
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    ClearInsertionPoint();
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  }
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  //===--------------------------------------------------------------------===//
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  // Builder configuration methods
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  //===--------------------------------------------------------------------===//
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  /// ClearInsertionPoint - Clear the insertion point: created instructions will
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  /// not be inserted into a block.
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  void ClearInsertionPoint() {
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    BB = 0;
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  }
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  BasicBlock *GetInsertBlock() const { return BB; }
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  BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
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  LLVMContext &getContext() const { return Context; }
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  /// SetInsertPoint - This specifies that created instructions should be
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  /// appended to the end of the specified block.
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  void SetInsertPoint(BasicBlock *TheBB) {
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    BB = TheBB;
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    InsertPt = BB->end();
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  }
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  /// SetInsertPoint - This specifies that created instructions should be
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  /// inserted at the specified point.
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  void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
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    BB = TheBB;
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    InsertPt = IP;
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  }
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  /// SetCurrentDebugLocation - Set location information used by debugging
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  /// information.
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  void SetCurrentDebugLocation(const DebugLoc &L) {
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    CurDbgLocation = L;
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  }
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  /// getCurrentDebugLocation - Get location information used by debugging
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  /// information.
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  const DebugLoc &getCurrentDebugLocation() const { return CurDbgLocation; }
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  /// SetInstDebugLocation - If this builder has a current debug location, set
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  /// it on the specified instruction.
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  void SetInstDebugLocation(Instruction *I) const {
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    if (!CurDbgLocation.isUnknown())
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      I->setDebugLoc(CurDbgLocation);
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  }
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  /// InsertPoint - A saved insertion point.
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  class InsertPoint {
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    BasicBlock *Block;
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    BasicBlock::iterator Point;
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  public:
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    /// Creates a new insertion point which doesn't point to anything.
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    InsertPoint() : Block(0) {}
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    /// Creates a new insertion point at the given location.
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    InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
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      : Block(InsertBlock), Point(InsertPoint) {}
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    /// isSet - Returns true if this insert point is set.
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    bool isSet() const { return (Block != 0); }
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    llvm::BasicBlock *getBlock() const { return Block; }
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    llvm::BasicBlock::iterator getPoint() const { return Point; }
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  };
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  /// saveIP - Returns the current insert point.
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  InsertPoint saveIP() const {
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    return InsertPoint(GetInsertBlock(), GetInsertPoint());
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  }
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  /// saveAndClearIP - Returns the current insert point, clearing it
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  /// in the process.
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  InsertPoint saveAndClearIP() {
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    InsertPoint IP(GetInsertBlock(), GetInsertPoint());
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    ClearInsertionPoint();
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    return IP;
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  }
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  /// restoreIP - Sets the current insert point to a previously-saved
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  /// location.
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  void restoreIP(InsertPoint IP) {
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    if (IP.isSet())
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      SetInsertPoint(IP.getBlock(), IP.getPoint());
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    else
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      ClearInsertionPoint();
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  }
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  //===--------------------------------------------------------------------===//
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  // Miscellaneous creation methods.
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  //===--------------------------------------------------------------------===//
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  /// CreateGlobalString - Make a new global variable with an initializer that
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  /// has array of i8 type filled in with the nul terminated string value
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  /// specified.  If Name is specified, it is the name of the global variable
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  /// created.
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  Value *CreateGlobalString(const char *Str = "", const Twine &Name = "");
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  /// getInt1 - Get a constant value representing either true or false.
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  ConstantInt *getInt1(bool V) {
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    return ConstantInt::get(getInt1Ty(), V);
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  }
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  /// getTrue - Get the constant value for i1 true.
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  ConstantInt *getTrue() {
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    return ConstantInt::getTrue(Context);
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  }
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  /// getFalse - Get the constant value for i1 false.
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  ConstantInt *getFalse() {
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    return ConstantInt::getFalse(Context);
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  }
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  /// getInt8 - Get a constant 8-bit value.
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  ConstantInt *getInt8(uint8_t C) {
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    return ConstantInt::get(getInt8Ty(), C);
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  }
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  /// getInt16 - Get a constant 16-bit value.
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  ConstantInt *getInt16(uint16_t C) {
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    return ConstantInt::get(getInt16Ty(), C);
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  }
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  /// getInt32 - Get a constant 32-bit value.
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  ConstantInt *getInt32(uint32_t C) {
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    return ConstantInt::get(getInt32Ty(), C);
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  }
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  /// getInt64 - Get a constant 64-bit value.
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  ConstantInt *getInt64(uint64_t C) {
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    return ConstantInt::get(getInt64Ty(), C);
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  }
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  //===--------------------------------------------------------------------===//
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  // Type creation methods
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  //===--------------------------------------------------------------------===//
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  /// getInt1Ty - Fetch the type representing a single bit
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  const IntegerType *getInt1Ty() {
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    return Type::getInt1Ty(Context);
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  }
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  /// getInt8Ty - Fetch the type representing an 8-bit integer.
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  const IntegerType *getInt8Ty() {
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    return Type::getInt8Ty(Context);
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  }
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  /// getInt16Ty - Fetch the type representing a 16-bit integer.
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  const IntegerType *getInt16Ty() {
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    return Type::getInt16Ty(Context);
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  }
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  /// getInt32Ty - Fetch the type resepresenting a 32-bit integer.
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  const IntegerType *getInt32Ty() {
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    return Type::getInt32Ty(Context);
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  }
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  /// getInt64Ty - Fetch the type representing a 64-bit integer.
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  const IntegerType *getInt64Ty() {
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    return Type::getInt64Ty(Context);
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  }
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  /// getFloatTy - Fetch the type representing a 32-bit floating point value.
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  const Type *getFloatTy() {
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    return Type::getFloatTy(Context);
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  }
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  /// getDoubleTy - Fetch the type representing a 64-bit floating point value.
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  const Type *getDoubleTy() {
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    return Type::getDoubleTy(Context);
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  }
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  /// getVoidTy - Fetch the type representing void.
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  const Type *getVoidTy() {
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    return Type::getVoidTy(Context);
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  }
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  const PointerType *getInt8PtrTy() {
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    return Type::getInt8PtrTy(Context);
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  }
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  /// getCurrentFunctionReturnType - Get the return type of the current function
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  /// that we're emitting into.
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  const Type *getCurrentFunctionReturnType() const;
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};
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/// IRBuilder - This provides a uniform API for creating instructions and
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/// inserting them into a basic block: either at the end of a BasicBlock, or
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/// at a specific iterator location in a block.
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///
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/// Note that the builder does not expose the full generality of LLVM
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/// instructions.  For access to extra instruction properties, use the mutators
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/// (e.g. setVolatile) on the instructions after they have been created.
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/// The first template argument handles whether or not to preserve names in the
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/// final instruction output. This defaults to on.  The second template argument
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/// specifies a class to use for creating constants.  This defaults to creating
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/// minimally folded constants.  The fourth template argument allows clients to
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/// specify custom insertion hooks that are called on every newly created
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/// insertion.
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template<bool preserveNames = true, typename T = ConstantFolder,
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         typename Inserter = IRBuilderDefaultInserter<preserveNames> >
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class IRBuilder : public IRBuilderBase, public Inserter {
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  T Folder;
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public:
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  IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter())
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    : IRBuilderBase(C), Inserter(I), Folder(F) {
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  }
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  explicit IRBuilder(LLVMContext &C) : IRBuilderBase(C), Folder(C) {
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  }
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  explicit IRBuilder(BasicBlock *TheBB, const T &F)
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    : IRBuilderBase(TheBB->getContext()), Folder(F) {
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    SetInsertPoint(TheBB);
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  }
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  explicit IRBuilder(BasicBlock *TheBB)
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    : IRBuilderBase(TheBB->getContext()), Folder(Context) {
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    SetInsertPoint(TheBB);
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  }
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  IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F)
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    : IRBuilderBase(TheBB->getContext()), Folder(F) {
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    SetInsertPoint(TheBB, IP);
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  }
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  IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP)
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    : IRBuilderBase(TheBB->getContext()), Folder(Context) {
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    SetInsertPoint(TheBB, IP);
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  }
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  /// getFolder - Get the constant folder being used.
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  const T &getFolder() { return Folder; }
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  /// isNamePreserving - Return true if this builder is configured to actually
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  /// add the requested names to IR created through it.
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  bool isNamePreserving() const { return preserveNames; }
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  /// Insert - Insert and return the specified instruction.
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  template<typename InstTy>
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  InstTy *Insert(InstTy *I, const Twine &Name = "") const {
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    this->InsertHelper(I, Name, BB, InsertPt);
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    if (!getCurrentDebugLocation().isUnknown())
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      this->SetInstDebugLocation(I);
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    return I;
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  }
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  //===--------------------------------------------------------------------===//
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  // Instruction creation methods: Terminators
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  //===--------------------------------------------------------------------===//
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  /// CreateRetVoid - Create a 'ret void' instruction.
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  ReturnInst *CreateRetVoid() {
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    return Insert(ReturnInst::Create(Context));
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  }
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						|
  /// @verbatim
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  /// CreateRet - Create a 'ret <val>' instruction.
 | 
						|
  /// @endverbatim
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  ReturnInst *CreateRet(Value *V) {
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    return Insert(ReturnInst::Create(Context, V));
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						|
  }
 | 
						|
  
 | 
						|
  /// CreateAggregateRet - Create a sequence of N insertvalue instructions,
 | 
						|
  /// with one Value from the retVals array each, that build a aggregate
 | 
						|
  /// return value one value at a time, and a ret instruction to return
 | 
						|
  /// the resulting aggregate value. This is a convenience function for
 | 
						|
  /// code that uses aggregate return values as a vehicle for having
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						|
  /// multiple return values.
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						|
  ///
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						|
  ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
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						|
    Value *V = UndefValue::get(getCurrentFunctionReturnType());
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						|
    for (unsigned i = 0; i != N; ++i)
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						|
      V = CreateInsertValue(V, retVals[i], i, "mrv");
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						|
    return Insert(ReturnInst::Create(Context, V));
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						|
  }
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						|
 | 
						|
  /// CreateBr - Create an unconditional 'br label X' instruction.
 | 
						|
  BranchInst *CreateBr(BasicBlock *Dest) {
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						|
    return Insert(BranchInst::Create(Dest));
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						|
  }
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						|
 | 
						|
  /// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
 | 
						|
  /// instruction.
 | 
						|
  BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
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						|
    return Insert(BranchInst::Create(True, False, Cond));
 | 
						|
  }
 | 
						|
 | 
						|
  /// CreateSwitch - Create a switch instruction with the specified value,
 | 
						|
  /// default dest, and with a hint for the number of cases that will be added
 | 
						|
  /// (for efficient allocation).
 | 
						|
  SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
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						|
    return Insert(SwitchInst::Create(V, Dest, NumCases));
 | 
						|
  }
 | 
						|
 | 
						|
  /// CreateIndirectBr - Create an indirect branch instruction with the
 | 
						|
  /// specified address operand, with an optional hint for the number of
 | 
						|
  /// destinations that will be added (for efficient allocation).
 | 
						|
  IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
 | 
						|
    return Insert(IndirectBrInst::Create(Addr, NumDests));
 | 
						|
  }
 | 
						|
 | 
						|
  InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
 | 
						|
                           BasicBlock *UnwindDest, const Twine &Name = "") {
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						|
    Value *Args[] = { 0 };
 | 
						|
    return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
 | 
						|
                                     Args), Name);
 | 
						|
  }
 | 
						|
  InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
 | 
						|
                           BasicBlock *UnwindDest, Value *Arg1,
 | 
						|
                           const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1 };
 | 
						|
    return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
 | 
						|
                                     Args+1), Name);
 | 
						|
  }
 | 
						|
  InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
 | 
						|
                            BasicBlock *UnwindDest, Value *Arg1,
 | 
						|
                            Value *Arg2, Value *Arg3,
 | 
						|
                            const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1, Arg2, Arg3 };
 | 
						|
    return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
 | 
						|
                                     Args+3), Name);
 | 
						|
  }
 | 
						|
  /// CreateInvoke - Create an invoke instruction.
 | 
						|
  template<typename InputIterator>
 | 
						|
  InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
 | 
						|
                           BasicBlock *UnwindDest, InputIterator ArgBegin,
 | 
						|
                           InputIterator ArgEnd, const Twine &Name = "") {
 | 
						|
    return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
 | 
						|
                                     ArgBegin, ArgEnd), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  UnwindInst *CreateUnwind() {
 | 
						|
    return Insert(new UnwindInst(Context));
 | 
						|
  }
 | 
						|
 | 
						|
  UnreachableInst *CreateUnreachable() {
 | 
						|
    return Insert(new UnreachableInst(Context));
 | 
						|
  }
 | 
						|
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Instruction creation methods: Binary Operators
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateAdd(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateAdd(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNSWAdd(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNSWAdd(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNUWAdd(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNUWAdd(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFAdd(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateFAdd(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateSub(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateSub(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNSWSub(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNSWSub(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNUWSub(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNUWSub(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFSub(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateFSub(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateMul(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateMul(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNSWMul(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNSWMul(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateNUWMul(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateNUWMul(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFMul(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateFMul(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateUDiv(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateSDiv(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateExactSDiv(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFDiv(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateFDiv(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateURem(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateSRem(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFRem(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateFRem(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateShl(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateShl(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateShl(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateLShr(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateLShr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateLShr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateAShr(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateAShr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateAShr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *RC = dyn_cast<Constant>(RHS)) {
 | 
						|
      if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
 | 
						|
        return LHS;  // LHS & -1 -> LHS
 | 
						|
      if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
        return Folder.CreateAnd(LC, RC);
 | 
						|
    }
 | 
						|
    return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateAnd(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateAnd(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateAnd(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateAnd(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *RC = dyn_cast<Constant>(RHS)) {
 | 
						|
      if (RC->isNullValue())
 | 
						|
        return LHS;  // LHS | 0 -> LHS
 | 
						|
      if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
        return Folder.CreateOr(LC, RC);
 | 
						|
    }
 | 
						|
    return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateOr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateOr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateOr(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateOr(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateXor(LC, RC);
 | 
						|
    return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateXor(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateXor(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
  Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | 
						|
    Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      return Folder.CreateXor(LC, RHSC);
 | 
						|
    return Insert(BinaryOperator::CreateXor(LHS, RHSC), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateBinOp(Instruction::BinaryOps Opc,
 | 
						|
                     Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateBinOp(Opc, LC, RC);
 | 
						|
    return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateNeg(Value *V, const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateNeg(VC);
 | 
						|
    return Insert(BinaryOperator::CreateNeg(V), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateNSWNeg(VC);
 | 
						|
    return Insert(BinaryOperator::CreateNSWNeg(V), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateNUWNeg(VC);
 | 
						|
    return Insert(BinaryOperator::CreateNUWNeg(V), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFNeg(Value *V, const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateFNeg(VC);
 | 
						|
    return Insert(BinaryOperator::CreateFNeg(V), Name);
 | 
						|
  }
 | 
						|
  Value *CreateNot(Value *V, const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateNot(VC);
 | 
						|
    return Insert(BinaryOperator::CreateNot(V), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Instruction creation methods: Memory Instructions
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  AllocaInst *CreateAlloca(const Type *Ty, Value *ArraySize = 0,
 | 
						|
                           const Twine &Name = "") {
 | 
						|
    return Insert(new AllocaInst(Ty, ArraySize), Name);
 | 
						|
  }
 | 
						|
  // Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
 | 
						|
  // converting the string to 'bool' for the isVolatile parameter.
 | 
						|
  LoadInst *CreateLoad(Value *Ptr, const char *Name) {
 | 
						|
    return Insert(new LoadInst(Ptr), Name);
 | 
						|
  }
 | 
						|
  LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
 | 
						|
    return Insert(new LoadInst(Ptr), Name);
 | 
						|
  }
 | 
						|
  LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
 | 
						|
    return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
 | 
						|
  }
 | 
						|
  StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
 | 
						|
    return Insert(new StoreInst(Val, Ptr, isVolatile));
 | 
						|
  }
 | 
						|
  template<typename InputIterator>
 | 
						|
  Value *CreateGEP(Value *Ptr, InputIterator IdxBegin, InputIterator IdxEnd,
 | 
						|
                   const Twine &Name = "") {
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr)) {
 | 
						|
      // Every index must be constant.
 | 
						|
      InputIterator i;
 | 
						|
      for (i = IdxBegin; i < IdxEnd; ++i)
 | 
						|
        if (!isa<Constant>(*i))
 | 
						|
          break;
 | 
						|
      if (i == IdxEnd)
 | 
						|
        return Folder.CreateGetElementPtr(PC, &IdxBegin[0], IdxEnd - IdxBegin);
 | 
						|
    }
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, IdxBegin, IdxEnd), Name);
 | 
						|
  }
 | 
						|
  template<typename InputIterator>
 | 
						|
  Value *CreateInBoundsGEP(Value *Ptr, InputIterator IdxBegin,
 | 
						|
                           InputIterator IdxEnd, const Twine &Name = "") {
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr)) {
 | 
						|
      // Every index must be constant.
 | 
						|
      InputIterator i;
 | 
						|
      for (i = IdxBegin; i < IdxEnd; ++i)
 | 
						|
        if (!isa<Constant>(*i))
 | 
						|
          break;
 | 
						|
      if (i == IdxEnd)
 | 
						|
        return Folder.CreateInBoundsGetElementPtr(PC,
 | 
						|
                                                  &IdxBegin[0],
 | 
						|
                                                  IdxEnd - IdxBegin);
 | 
						|
    }
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxBegin, IdxEnd),
 | 
						|
                  Name);
 | 
						|
  }
 | 
						|
  Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      if (Constant *IC = dyn_cast<Constant>(Idx))
 | 
						|
        return Folder.CreateGetElementPtr(PC, &IC, 1);
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
 | 
						|
  }
 | 
						|
  Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      if (Constant *IC = dyn_cast<Constant>(Idx))
 | 
						|
        return Folder.CreateInBoundsGetElementPtr(PC, &IC, 1);
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
 | 
						|
  }
 | 
						|
  Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
 | 
						|
    Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateGetElementPtr(PC, &Idx, 1);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);    
 | 
						|
  }
 | 
						|
  Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
 | 
						|
                                    const Twine &Name = "") {
 | 
						|
    Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
 | 
						|
  }
 | 
						|
  Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1, 
 | 
						|
                    const Twine &Name = "") {
 | 
						|
    Value *Idxs[] = {
 | 
						|
      ConstantInt::get(Type::getInt32Ty(Context), Idx0),
 | 
						|
      ConstantInt::get(Type::getInt32Ty(Context), Idx1)
 | 
						|
    };
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateGetElementPtr(PC, Idxs, 2);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);    
 | 
						|
  }
 | 
						|
  Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
 | 
						|
                                    const Twine &Name = "") {
 | 
						|
    Value *Idxs[] = {
 | 
						|
      ConstantInt::get(Type::getInt32Ty(Context), Idx0),
 | 
						|
      ConstantInt::get(Type::getInt32Ty(Context), Idx1)
 | 
						|
    };
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
 | 
						|
  }
 | 
						|
  Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
 | 
						|
    Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateGetElementPtr(PC, &Idx, 1);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);    
 | 
						|
  }
 | 
						|
  Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
 | 
						|
                                    const Twine &Name = "") {
 | 
						|
    Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
 | 
						|
  }
 | 
						|
  Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
 | 
						|
                    const Twine &Name = "") {
 | 
						|
    Value *Idxs[] = {
 | 
						|
      ConstantInt::get(Type::getInt64Ty(Context), Idx0),
 | 
						|
      ConstantInt::get(Type::getInt64Ty(Context), Idx1)
 | 
						|
    };
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateGetElementPtr(PC, Idxs, 2);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);    
 | 
						|
  }
 | 
						|
  Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
 | 
						|
                                    const Twine &Name = "") {
 | 
						|
    Value *Idxs[] = {
 | 
						|
      ConstantInt::get(Type::getInt64Ty(Context), Idx0),
 | 
						|
      ConstantInt::get(Type::getInt64Ty(Context), Idx1)
 | 
						|
    };
 | 
						|
 | 
						|
    if (Constant *PC = dyn_cast<Constant>(Ptr))
 | 
						|
      return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
 | 
						|
 | 
						|
    return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
 | 
						|
  }
 | 
						|
  Value *CreateStructGEP(Value *Ptr, unsigned Idx, const Twine &Name = "") {
 | 
						|
    return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
 | 
						|
  }
 | 
						|
  
 | 
						|
  /// CreateGlobalStringPtr - Same as CreateGlobalString, but return a pointer
 | 
						|
  /// with "i8*" type instead of a pointer to array of i8.
 | 
						|
  Value *CreateGlobalStringPtr(const char *Str = "", const Twine &Name = "") {
 | 
						|
    Value *gv = CreateGlobalString(Str, Name);
 | 
						|
    Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
 | 
						|
    Value *Args[] = { zero, zero };
 | 
						|
    return CreateInBoundsGEP(gv, Args, Args+2, Name);
 | 
						|
  }
 | 
						|
  
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Instruction creation methods: Cast/Conversion Operators
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  Value *CreateTrunc(Value *V, const Type *DestTy, const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::Trunc, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateZExt(Value *V, const Type *DestTy, const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::ZExt, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateSExt(Value *V, const Type *DestTy, const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::SExt, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFPToUI(Value *V, const Type *DestTy, const Twine &Name = ""){
 | 
						|
    return CreateCast(Instruction::FPToUI, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFPToSI(Value *V, const Type *DestTy, const Twine &Name = ""){
 | 
						|
    return CreateCast(Instruction::FPToSI, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateUIToFP(Value *V, const Type *DestTy, const Twine &Name = ""){
 | 
						|
    return CreateCast(Instruction::UIToFP, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateSIToFP(Value *V, const Type *DestTy, const Twine &Name = ""){
 | 
						|
    return CreateCast(Instruction::SIToFP, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFPTrunc(Value *V, const Type *DestTy,
 | 
						|
                       const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFPExt(Value *V, const Type *DestTy, const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::FPExt, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreatePtrToInt(Value *V, const Type *DestTy,
 | 
						|
                        const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateIntToPtr(Value *V, const Type *DestTy,
 | 
						|
                        const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateBitCast(Value *V, const Type *DestTy,
 | 
						|
                       const Twine &Name = "") {
 | 
						|
    return CreateCast(Instruction::BitCast, V, DestTy, Name);
 | 
						|
  }
 | 
						|
  Value *CreateZExtOrBitCast(Value *V, const Type *DestTy,
 | 
						|
                             const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateZExtOrBitCast(VC, DestTy);
 | 
						|
    return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
 | 
						|
  }
 | 
						|
  Value *CreateSExtOrBitCast(Value *V, const Type *DestTy,
 | 
						|
                             const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateSExtOrBitCast(VC, DestTy);
 | 
						|
    return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
 | 
						|
  }
 | 
						|
  Value *CreateTruncOrBitCast(Value *V, const Type *DestTy,
 | 
						|
                              const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateTruncOrBitCast(VC, DestTy);
 | 
						|
    return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
 | 
						|
  }
 | 
						|
  Value *CreateCast(Instruction::CastOps Op, Value *V, const Type *DestTy,
 | 
						|
                    const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateCast(Op, VC, DestTy);
 | 
						|
    return Insert(CastInst::Create(Op, V, DestTy), Name);
 | 
						|
  }
 | 
						|
  Value *CreatePointerCast(Value *V, const Type *DestTy,
 | 
						|
                           const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreatePointerCast(VC, DestTy);
 | 
						|
    return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
 | 
						|
  }
 | 
						|
  Value *CreateIntCast(Value *V, const Type *DestTy, bool isSigned,
 | 
						|
                       const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateIntCast(VC, DestTy, isSigned);
 | 
						|
    return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
 | 
						|
  }
 | 
						|
private:
 | 
						|
  // Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a compile time
 | 
						|
  // error, instead of converting the string to bool for the isSigned parameter.
 | 
						|
  Value *CreateIntCast(Value *, const Type *, const char *); // DO NOT IMPLEMENT
 | 
						|
public:
 | 
						|
  Value *CreateFPCast(Value *V, const Type *DestTy, const Twine &Name = "") {
 | 
						|
    if (V->getType() == DestTy)
 | 
						|
      return V;
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(V))
 | 
						|
      return Folder.CreateFPCast(VC, DestTy);
 | 
						|
    return Insert(CastInst::CreateFPCast(V, DestTy), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Instruction creation methods: Compare Instructions
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
 | 
						|
                    const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateICmp(P, LC, RC);
 | 
						|
    return Insert(new ICmpInst(P, LHS, RHS), Name);
 | 
						|
  }
 | 
						|
  Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
 | 
						|
                    const Twine &Name = "") {
 | 
						|
    if (Constant *LC = dyn_cast<Constant>(LHS))
 | 
						|
      if (Constant *RC = dyn_cast<Constant>(RHS))
 | 
						|
        return Folder.CreateFCmp(P, LC, RC);
 | 
						|
    return Insert(new FCmpInst(P, LHS, RHS), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Instruction creation methods: Other Instructions
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  PHINode *CreatePHI(const Type *Ty, const Twine &Name = "") {
 | 
						|
    return Insert(PHINode::Create(Ty), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  CallInst *CreateCall(Value *Callee, const Twine &Name = "") {
 | 
						|
    return Insert(CallInst::Create(Callee), Name);
 | 
						|
  }
 | 
						|
  CallInst *CreateCall(Value *Callee, Value *Arg, const Twine &Name = "") {
 | 
						|
    return Insert(CallInst::Create(Callee, Arg), Name);
 | 
						|
  }
 | 
						|
  CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
 | 
						|
                        const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1, Arg2 };
 | 
						|
    return Insert(CallInst::Create(Callee, Args, Args+2), Name);
 | 
						|
  }
 | 
						|
  CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
 | 
						|
                        const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1, Arg2, Arg3 };
 | 
						|
    return Insert(CallInst::Create(Callee, Args, Args+3), Name);
 | 
						|
  }
 | 
						|
  CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
 | 
						|
                        Value *Arg4, const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
 | 
						|
    return Insert(CallInst::Create(Callee, Args, Args+4), Name);
 | 
						|
  }
 | 
						|
  CallInst *CreateCall5(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
 | 
						|
                        Value *Arg4, Value *Arg5, const Twine &Name = "") {
 | 
						|
    Value *Args[] = { Arg1, Arg2, Arg3, Arg4, Arg5 };
 | 
						|
    return Insert(CallInst::Create(Callee, Args, Args+5), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  template<typename InputIterator>
 | 
						|
  CallInst *CreateCall(Value *Callee, InputIterator ArgBegin,
 | 
						|
                       InputIterator ArgEnd, const Twine &Name = "") {
 | 
						|
    return Insert(CallInst::Create(Callee, ArgBegin, ArgEnd), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateSelect(Value *C, Value *True, Value *False,
 | 
						|
                      const Twine &Name = "") {
 | 
						|
    if (Constant *CC = dyn_cast<Constant>(C))
 | 
						|
      if (Constant *TC = dyn_cast<Constant>(True))
 | 
						|
        if (Constant *FC = dyn_cast<Constant>(False))
 | 
						|
          return Folder.CreateSelect(CC, TC, FC);
 | 
						|
    return Insert(SelectInst::Create(C, True, False), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  VAArgInst *CreateVAArg(Value *List, const Type *Ty, const Twine &Name = "") {
 | 
						|
    return Insert(new VAArgInst(List, Ty), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateExtractElement(Value *Vec, Value *Idx,
 | 
						|
                              const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(Vec))
 | 
						|
      if (Constant *IC = dyn_cast<Constant>(Idx))
 | 
						|
        return Folder.CreateExtractElement(VC, IC);
 | 
						|
    return Insert(ExtractElementInst::Create(Vec, Idx), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
 | 
						|
                             const Twine &Name = "") {
 | 
						|
    if (Constant *VC = dyn_cast<Constant>(Vec))
 | 
						|
      if (Constant *NC = dyn_cast<Constant>(NewElt))
 | 
						|
        if (Constant *IC = dyn_cast<Constant>(Idx))
 | 
						|
          return Folder.CreateInsertElement(VC, NC, IC);
 | 
						|
    return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
 | 
						|
                             const Twine &Name = "") {
 | 
						|
    if (Constant *V1C = dyn_cast<Constant>(V1))
 | 
						|
      if (Constant *V2C = dyn_cast<Constant>(V2))
 | 
						|
        if (Constant *MC = dyn_cast<Constant>(Mask))
 | 
						|
          return Folder.CreateShuffleVector(V1C, V2C, MC);
 | 
						|
    return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateExtractValue(Value *Agg, unsigned Idx,
 | 
						|
                            const Twine &Name = "") {
 | 
						|
    if (Constant *AggC = dyn_cast<Constant>(Agg))
 | 
						|
      return Folder.CreateExtractValue(AggC, &Idx, 1);
 | 
						|
    return Insert(ExtractValueInst::Create(Agg, Idx), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  template<typename InputIterator>
 | 
						|
  Value *CreateExtractValue(Value *Agg,
 | 
						|
                            InputIterator IdxBegin,
 | 
						|
                            InputIterator IdxEnd,
 | 
						|
                            const Twine &Name = "") {
 | 
						|
    if (Constant *AggC = dyn_cast<Constant>(Agg))
 | 
						|
      return Folder.CreateExtractValue(AggC, IdxBegin, IdxEnd - IdxBegin);
 | 
						|
    return Insert(ExtractValueInst::Create(Agg, IdxBegin, IdxEnd), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  Value *CreateInsertValue(Value *Agg, Value *Val, unsigned Idx,
 | 
						|
                           const Twine &Name = "") {
 | 
						|
    if (Constant *AggC = dyn_cast<Constant>(Agg))
 | 
						|
      if (Constant *ValC = dyn_cast<Constant>(Val))
 | 
						|
        return Folder.CreateInsertValue(AggC, ValC, &Idx, 1);
 | 
						|
    return Insert(InsertValueInst::Create(Agg, Val, Idx), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  template<typename InputIterator>
 | 
						|
  Value *CreateInsertValue(Value *Agg, Value *Val,
 | 
						|
                           InputIterator IdxBegin,
 | 
						|
                           InputIterator IdxEnd,
 | 
						|
                           const Twine &Name = "") {
 | 
						|
    if (Constant *AggC = dyn_cast<Constant>(Agg))
 | 
						|
      if (Constant *ValC = dyn_cast<Constant>(Val))
 | 
						|
        return Folder.CreateInsertValue(AggC, ValC, IdxBegin, IdxEnd-IdxBegin);
 | 
						|
    return Insert(InsertValueInst::Create(Agg, Val, IdxBegin, IdxEnd), Name);
 | 
						|
  }
 | 
						|
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
  // Utility creation methods
 | 
						|
  //===--------------------------------------------------------------------===//
 | 
						|
 | 
						|
  /// CreateIsNull - Return an i1 value testing if \arg Arg is null.
 | 
						|
  Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
 | 
						|
    return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
 | 
						|
                        Name);
 | 
						|
  }
 | 
						|
 | 
						|
  /// CreateIsNotNull - Return an i1 value testing if \arg Arg is not null.
 | 
						|
  Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
 | 
						|
    return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
 | 
						|
                        Name);
 | 
						|
  }
 | 
						|
 | 
						|
  /// CreatePtrDiff - Return the i64 difference between two pointer values,
 | 
						|
  /// dividing out the size of the pointed-to objects.  This is intended to
 | 
						|
  /// implement C-style pointer subtraction. As such, the pointers must be
 | 
						|
  /// appropriately aligned for their element types and pointing into the
 | 
						|
  /// same object.
 | 
						|
  Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
 | 
						|
    assert(LHS->getType() == RHS->getType() &&
 | 
						|
           "Pointer subtraction operand types must match!");
 | 
						|
    const PointerType *ArgType = cast<PointerType>(LHS->getType());
 | 
						|
    Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
 | 
						|
    Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
 | 
						|
    Value *Difference = CreateSub(LHS_int, RHS_int);
 | 
						|
    return CreateExactSDiv(Difference,
 | 
						|
                           ConstantExpr::getSizeOf(ArgType->getElementType()),
 | 
						|
                           Name);
 | 
						|
  }
 | 
						|
};
 | 
						|
 | 
						|
}
 | 
						|
 | 
						|
#endif
 |