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	Added a basic unit test for this with CreateCondBr. I didn't go all the way and test the switch side as the boilerplate for setting up the switch IRBuilder unit tests is a lot more. Fortunately, the two share all the interesting code paths. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160251 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			1297 lines
		
	
	
		
			52 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1297 lines
		
	
	
		
			52 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===---- llvm/IRBuilder.h - Builder for LLVM Instructions ------*- C++ -*-===//
 | |
| //
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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
 | |
| // License. See LICENSE.TXT for details.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| //
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| // This file defines the IRBuilder class, which is used as a convenient way
 | |
| // to create LLVM instructions with a consistent and simplified interface.
 | |
| //
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| //===----------------------------------------------------------------------===//
 | |
| 
 | |
| #ifndef LLVM_IRBUILDER_H
 | |
| #define LLVM_IRBUILDER_H
 | |
| 
 | |
| #include "llvm/Instructions.h"
 | |
| #include "llvm/BasicBlock.h"
 | |
| #include "llvm/LLVMContext.h"
 | |
| #include "llvm/ADT/ArrayRef.h"
 | |
| #include "llvm/ADT/StringRef.h"
 | |
| #include "llvm/ADT/Twine.h"
 | |
| #include "llvm/Support/ConstantFolder.h"
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| 
 | |
| namespace llvm {
 | |
|   class MDNode;
 | |
| 
 | |
| /// IRBuilderDefaultInserter - This provides the default implementation of the
 | |
| /// IRBuilder 'InsertHelper' method that is called whenever an instruction is
 | |
| /// created by IRBuilder and needs to be inserted.  By default, this inserts the
 | |
| /// instruction at the insertion point.
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| template <bool preserveNames = true>
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| class IRBuilderDefaultInserter {
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| protected:
 | |
|   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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| };
 | |
| 
 | |
| /// 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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| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // 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 before the specified instruction.
 | |
|   void SetInsertPoint(Instruction *I) {
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|     BB = I->getParent();
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|     InsertPt = I;
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|     SetCurrentDebugLocation(I->getDebugLoc());
 | |
|   }
 | |
| 
 | |
|   /// SetInsertPoint - This specifies that created instructions should be
 | |
|   /// 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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| 
 | |
|   /// SetInsertPoint(Use) - Find the nearest point that dominates this use, and
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|   /// specify that created instructions should be inserted at this point.
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|   void SetInsertPoint(Use &U) {
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|     Instruction *UseInst = cast<Instruction>(U.getUser());
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|     if (PHINode *Phi = dyn_cast<PHINode>(UseInst)) {
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|       BasicBlock *PredBB = Phi->getIncomingBlock(U);
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|       assert(U != PredBB->getTerminator() && "critical edge not split");
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|       SetInsertPoint(PredBB, PredBB->getTerminator());
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|       return;
 | |
|     }
 | |
|     SetInsertPoint(UseInst);
 | |
|   }
 | |
| 
 | |
|   /// SetCurrentDebugLocation - Set location information used by debugging
 | |
|   /// information.
 | |
|   void SetCurrentDebugLocation(const DebugLoc &L) {
 | |
|     CurDbgLocation = L;
 | |
|   }
 | |
| 
 | |
|   /// getCurrentDebugLocation - Get location information used by debugging
 | |
|   /// information.
 | |
|   DebugLoc getCurrentDebugLocation() const { return CurDbgLocation; }
 | |
| 
 | |
|   /// SetInstDebugLocation - If this builder has a current debug location, set
 | |
|   /// it on the specified instruction.
 | |
|   void SetInstDebugLocation(Instruction *I) const {
 | |
|     if (!CurDbgLocation.isUnknown())
 | |
|       I->setDebugLoc(CurDbgLocation);
 | |
|   }
 | |
| 
 | |
|   /// getCurrentFunctionReturnType - Get the return type of the current function
 | |
|   /// that we're emitting into.
 | |
|   Type *getCurrentFunctionReturnType() const;
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| 
 | |
|   /// InsertPoint - A saved insertion point.
 | |
|   class InsertPoint {
 | |
|     BasicBlock *Block;
 | |
|     BasicBlock::iterator Point;
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| 
 | |
|   public:
 | |
|     /// Creates a new insertion point which doesn't point to anything.
 | |
|     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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| 
 | |
|   /// saveIP - Returns the current insert point.
 | |
|   InsertPoint saveIP() const {
 | |
|     return InsertPoint(GetInsertBlock(), GetInsertPoint());
 | |
|   }
 | |
| 
 | |
|   /// saveAndClearIP - Returns the current insert point, clearing it
 | |
|   /// in the process.
 | |
|   InsertPoint saveAndClearIP() {
 | |
|     InsertPoint IP(GetInsertBlock(), GetInsertPoint());
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|     ClearInsertionPoint();
 | |
|     return IP;
 | |
|   }
 | |
| 
 | |
|   /// restoreIP - Sets the current insert point to a previously-saved
 | |
|   /// location.
 | |
|   void restoreIP(InsertPoint IP) {
 | |
|     if (IP.isSet())
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|       SetInsertPoint(IP.getBlock(), IP.getPoint());
 | |
|     else
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|       ClearInsertionPoint();
 | |
|   }
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| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Miscellaneous creation methods.
 | |
|   //===--------------------------------------------------------------------===//
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| 
 | |
|   /// CreateGlobalString - Make a new global variable with an initializer that
 | |
|   /// has array of i8 type filled in with the nul terminated string value
 | |
|   /// specified.  The new global variable will be marked mergable with any
 | |
|   /// others of the same contents.  If Name is specified, it is the name of the
 | |
|   /// global variable created.
 | |
|   Value *CreateGlobalString(StringRef Str, const Twine &Name = "");
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| 
 | |
|   /// getInt1 - Get a constant value representing either true or false.
 | |
|   ConstantInt *getInt1(bool V) {
 | |
|     return ConstantInt::get(getInt1Ty(), V);
 | |
|   }
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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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| 
 | |
|   /// getInt64 - Get a constant 64-bit value.
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|   ConstantInt *getInt64(uint64_t C) {
 | |
|     return ConstantInt::get(getInt64Ty(), C);
 | |
|   }
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| 
 | |
|   /// getInt - Get a constant integer value.
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|   ConstantInt *getInt(const APInt &AI) {
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|     return ConstantInt::get(Context, AI);
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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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|   IntegerType *getInt1Ty() {
 | |
|     return Type::getInt1Ty(Context);
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|   }
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| 
 | |
|   /// getInt8Ty - Fetch the type representing an 8-bit integer.
 | |
|   IntegerType *getInt8Ty() {
 | |
|     return Type::getInt8Ty(Context);
 | |
|   }
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| 
 | |
|   /// getInt16Ty - Fetch the type representing a 16-bit integer.
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|   IntegerType *getInt16Ty() {
 | |
|     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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|   IntegerType *getInt32Ty() {
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|     return Type::getInt32Ty(Context);
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|   }
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| 
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|   /// getInt64Ty - Fetch the type representing a 64-bit integer.
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|   IntegerType *getInt64Ty() {
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|     return Type::getInt64Ty(Context);
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|   }
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| 
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|   /// getFloatTy - Fetch the type representing a 32-bit floating point value.
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|   Type *getFloatTy() {
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|     return Type::getFloatTy(Context);
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|   }
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| 
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|   /// getDoubleTy - Fetch the type representing a 64-bit floating point value.
 | |
|   Type *getDoubleTy() {
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|     return Type::getDoubleTy(Context);
 | |
|   }
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| 
 | |
|   /// getVoidTy - Fetch the type representing void.
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|   Type *getVoidTy() {
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|     return Type::getVoidTy(Context);
 | |
|   }
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| 
 | |
|   PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
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|     return Type::getInt8PtrTy(Context, AddrSpace);
 | |
|   }
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| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Intrinsic creation methods
 | |
|   //===--------------------------------------------------------------------===//
 | |
| 
 | |
|   /// CreateMemSet - Create and insert a memset to the specified pointer and the
 | |
|   /// specified value.  If the pointer isn't an i8*, it will be converted.  If a
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|   /// TBAA tag is specified, it will be added to the instruction.
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|   CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
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|                          bool isVolatile = false, MDNode *TBAATag = 0) {
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|     return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile, TBAATag);
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|   }
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| 
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|   CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
 | |
|                          bool isVolatile = false, MDNode *TBAATag = 0);
 | |
| 
 | |
|   /// CreateMemCpy - Create and insert a memcpy between the specified pointers.
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|   /// If the pointers aren't i8*, they will be converted.  If a TBAA tag is
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|   /// specified, it will be added to the instruction.
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|   CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
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|                          bool isVolatile = false, MDNode *TBAATag = 0) {
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|     return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
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|   }
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| 
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|   CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
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|                          bool isVolatile = false, MDNode *TBAATag = 0);
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| 
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|   /// CreateMemMove - Create and insert a memmove between the specified
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|   /// pointers.  If the pointers aren't i8*, they will be converted.  If a TBAA
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|   /// tag is specified, it will be added to the instruction.
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|   CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
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|                           bool isVolatile = false, MDNode *TBAATag = 0) {
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|     return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
 | |
|   }
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| 
 | |
|   CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
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|                           bool isVolatile = false, MDNode *TBAATag = 0);
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| 
 | |
|   /// CreateLifetimeStart - Create a lifetime.start intrinsic.  If the pointer
 | |
|   /// isn't i8* it will be converted.
 | |
|   CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = 0);
 | |
| 
 | |
|   /// CreateLifetimeEnd - Create a lifetime.end intrinsic.  If the pointer isn't
 | |
|   /// i8* it will be converted.
 | |
|   CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = 0);
 | |
| 
 | |
| private:
 | |
|   Value *getCastedInt8PtrValue(Value *Ptr);
 | |
| };
 | |
| 
 | |
| /// IRBuilder - This provides a uniform API for creating instructions and
 | |
| /// inserting them into a basic block: either at the end of a BasicBlock, or
 | |
| /// at a specific iterator location in a block.
 | |
| ///
 | |
| /// Note that the builder does not expose the full generality of LLVM
 | |
| /// instructions.  For access to extra instruction properties, use the mutators
 | |
| /// (e.g. setVolatile) on the instructions after they have been created.
 | |
| /// The first template argument handles whether or not to preserve names in the
 | |
| /// final instruction output. This defaults to on.  The second template argument
 | |
| /// specifies a class to use for creating constants.  This defaults to creating
 | |
| /// minimally folded constants.  The fourth template argument allows clients to
 | |
| /// specify custom insertion hooks that are called on every newly created
 | |
| /// insertion.
 | |
| template<bool preserveNames = true, typename T = ConstantFolder,
 | |
|          typename Inserter = IRBuilderDefaultInserter<preserveNames> >
 | |
| class IRBuilder : public IRBuilderBase, public Inserter {
 | |
|   T Folder;
 | |
|   MDNode *DefaultFPMathTag;
 | |
| public:
 | |
|   IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter(),
 | |
|             MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(C), Inserter(I), Folder(F), DefaultFPMathTag(FPMathTag) {
 | |
|   }
 | |
| 
 | |
|   explicit IRBuilder(LLVMContext &C, MDNode *FPMathTag = 0) : IRBuilderBase(C),
 | |
|     Folder(), DefaultFPMathTag(FPMathTag) {
 | |
|   }
 | |
| 
 | |
|   explicit IRBuilder(BasicBlock *TheBB, const T &F, MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(TheBB->getContext()), Folder(F),
 | |
|       DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(TheBB);
 | |
|   }
 | |
| 
 | |
|   explicit IRBuilder(BasicBlock *TheBB, MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(TheBB->getContext()), Folder(),
 | |
|       DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(TheBB);
 | |
|   }
 | |
| 
 | |
|   explicit IRBuilder(Instruction *IP, MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(IP->getContext()), Folder(), DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(IP);
 | |
|     SetCurrentDebugLocation(IP->getDebugLoc());
 | |
|   }
 | |
| 
 | |
|   explicit IRBuilder(Use &U, MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(U->getContext()), Folder(), DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(U);
 | |
|     SetCurrentDebugLocation(cast<Instruction>(U.getUser())->getDebugLoc());
 | |
|   }
 | |
| 
 | |
|   IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F,
 | |
|             MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(TheBB->getContext()), Folder(F),
 | |
|       DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(TheBB, IP);
 | |
|   }
 | |
| 
 | |
|   IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, MDNode *FPMathTag = 0)
 | |
|     : IRBuilderBase(TheBB->getContext()), Folder(),
 | |
|       DefaultFPMathTag(FPMathTag) {
 | |
|     SetInsertPoint(TheBB, IP);
 | |
|   }
 | |
| 
 | |
|   /// getFolder - Get the constant folder being used.
 | |
|   const T &getFolder() { return Folder; }
 | |
| 
 | |
|   /// getDefaultFPMathTag - Get the floating point math metadata being used.
 | |
|   MDNode *getDefaultFPMathTag() const { return DefaultFPMathTag; }
 | |
| 
 | |
|   /// SetDefaultFPMathTag - Set the floating point math metadata to be used.
 | |
|   void SetDefaultFPMathTag(MDNode *FPMathTag) { DefaultFPMathTag = FPMathTag; }
 | |
| 
 | |
|   /// isNamePreserving - Return true if this builder is configured to actually
 | |
|   /// add the requested names to IR created through it.
 | |
|   bool isNamePreserving() const { return preserveNames; }
 | |
| 
 | |
|   /// Insert - Insert and return the specified instruction.
 | |
|   template<typename InstTy>
 | |
|   InstTy *Insert(InstTy *I, const Twine &Name = "") const {
 | |
|     this->InsertHelper(I, Name, BB, InsertPt);
 | |
|     if (!getCurrentDebugLocation().isUnknown())
 | |
|       this->SetInstDebugLocation(I);
 | |
|     return I;
 | |
|   }
 | |
| 
 | |
|   /// Insert - No-op overload to handle constants.
 | |
|   Constant *Insert(Constant *C, const Twine& = "") const {
 | |
|     return C;
 | |
|   }
 | |
| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Instruction creation methods: Terminators
 | |
|   //===--------------------------------------------------------------------===//
 | |
| 
 | |
| private:
 | |
|   /// \brief Helper to add branch weight metadata onto an instruction.
 | |
|   /// \returns The annotated instruction.
 | |
|   template <typename InstTy>
 | |
|   InstTy *addBranchWeights(InstTy *I, MDNode *Weights) {
 | |
|     if (Weights)
 | |
|       I->setMetadata(LLVMContext::MD_prof, Weights);
 | |
|     return I;
 | |
|   }
 | |
| 
 | |
| public:
 | |
|   /// CreateRetVoid - Create a 'ret void' instruction.
 | |
|   ReturnInst *CreateRetVoid() {
 | |
|     return Insert(ReturnInst::Create(Context));
 | |
|   }
 | |
| 
 | |
|   /// @verbatim
 | |
|   /// CreateRet - Create a 'ret <val>' instruction.
 | |
|   /// @endverbatim
 | |
|   ReturnInst *CreateRet(Value *V) {
 | |
|     return Insert(ReturnInst::Create(Context, V));
 | |
|   }
 | |
| 
 | |
|   /// 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
 | |
|   /// multiple return values.
 | |
|   ///
 | |
|   ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
 | |
|     Value *V = UndefValue::get(getCurrentFunctionReturnType());
 | |
|     for (unsigned i = 0; i != N; ++i)
 | |
|       V = CreateInsertValue(V, retVals[i], i, "mrv");
 | |
|     return Insert(ReturnInst::Create(Context, V));
 | |
|   }
 | |
| 
 | |
|   /// CreateBr - Create an unconditional 'br label X' instruction.
 | |
|   BranchInst *CreateBr(BasicBlock *Dest) {
 | |
|     return Insert(BranchInst::Create(Dest));
 | |
|   }
 | |
| 
 | |
|   /// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
 | |
|   /// instruction.
 | |
|   BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False,
 | |
|                            MDNode *BranchWeights = 0) {
 | |
|     return Insert(addBranchWeights(BranchInst::Create(True, False, Cond),
 | |
|                                    BranchWeights));
 | |
|   }
 | |
| 
 | |
|   /// 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,
 | |
|                            MDNode *BranchWeights = 0) {
 | |
|     return Insert(addBranchWeights(SwitchInst::Create(V, Dest, NumCases),
 | |
|                                    BranchWeights));
 | |
|   }
 | |
| 
 | |
|   /// 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 = "") {
 | |
|     return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
 | |
|                                      ArrayRef<Value *>()),
 | |
|                   Name);
 | |
|   }
 | |
|   InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
 | |
|                            BasicBlock *UnwindDest, Value *Arg1,
 | |
|                            const Twine &Name = "") {
 | |
|     return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Arg1),
 | |
|                   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),
 | |
|                   Name);
 | |
|   }
 | |
|   /// CreateInvoke - Create an invoke instruction.
 | |
|   InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
 | |
|                            BasicBlock *UnwindDest, ArrayRef<Value *> Args,
 | |
|                            const Twine &Name = "") {
 | |
|     return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
 | |
|                   Name);
 | |
|   }
 | |
| 
 | |
|   ResumeInst *CreateResume(Value *Exn) {
 | |
|     return Insert(ResumeInst::Create(Exn));
 | |
|   }
 | |
| 
 | |
|   UnreachableInst *CreateUnreachable() {
 | |
|     return Insert(new UnreachableInst(Context));
 | |
|   }
 | |
| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Instruction creation methods: Binary Operators
 | |
|   //===--------------------------------------------------------------------===//
 | |
| private:
 | |
|   BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
 | |
|                                           Value *LHS, Value *RHS,
 | |
|                                           const Twine &Name,
 | |
|                                           bool HasNUW, bool HasNSW) {
 | |
|     BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
 | |
|     if (HasNUW) BO->setHasNoUnsignedWrap();
 | |
|     if (HasNSW) BO->setHasNoSignedWrap();
 | |
|     return BO;
 | |
|   }
 | |
| 
 | |
|   Instruction *AddFPMathTag(Instruction *I, MDNode *FPMathTag) const {
 | |
|     if (!FPMathTag)
 | |
|       FPMathTag = DefaultFPMathTag;
 | |
|     if (FPMathTag)
 | |
|       I->setMetadata(LLVMContext::MD_fpmath, FPMathTag);
 | |
|     return I;
 | |
|   }
 | |
| public:
 | |
|   Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
 | |
|     return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
 | |
|                                    HasNUW, HasNSW);
 | |
|   }
 | |
|   Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateAdd(LHS, RHS, Name, false, true);
 | |
|   }
 | |
|   Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateAdd(LHS, RHS, Name, true, false);
 | |
|   }
 | |
|   Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     MDNode *FPMathTag = 0) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateFAdd(LC, RC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFAdd(LHS, RHS),
 | |
|                                FPMathTag), Name);
 | |
|   }
 | |
|   Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateSub(LC, RC), Name);
 | |
|     return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
 | |
|                                    HasNUW, HasNSW);
 | |
|   }
 | |
|   Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateSub(LHS, RHS, Name, false, true);
 | |
|   }
 | |
|   Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateSub(LHS, RHS, Name, true, false);
 | |
|   }
 | |
|   Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     MDNode *FPMathTag = 0) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateFSub(LC, RC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFSub(LHS, RHS),
 | |
|                                FPMathTag), Name);
 | |
|   }
 | |
|   Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateMul(LC, RC), Name);
 | |
|     return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
 | |
|                                    HasNUW, HasNSW);
 | |
|   }
 | |
|   Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateMul(LHS, RHS, Name, false, true);
 | |
|   }
 | |
|   Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateMul(LHS, RHS, Name, true, false);
 | |
|   }
 | |
|   Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     MDNode *FPMathTag = 0) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateFMul(LC, RC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFMul(LHS, RHS),
 | |
|                                FPMathTag), Name);
 | |
|   }
 | |
|   Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
 | |
|     if (!isExact)
 | |
|       return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
 | |
|     return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateUDiv(LHS, RHS, Name, true);
 | |
|   }
 | |
|   Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
 | |
|     if (!isExact)
 | |
|       return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
 | |
|     return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
 | |
|     return CreateSDiv(LHS, RHS, Name, true);
 | |
|   }
 | |
|   Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     MDNode *FPMathTag = 0) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateFDiv(LC, RC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFDiv(LHS, RHS),
 | |
|                                FPMathTag), 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 Insert(Folder.CreateURem(LC, RC), Name);
 | |
|     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 Insert(Folder.CreateSRem(LC, RC), Name);
 | |
|     return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     MDNode *FPMathTag = 0) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateFRem(LC, RC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFRem(LHS, RHS),
 | |
|                                FPMathTag), Name);
 | |
|   }
 | |
| 
 | |
|   Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
 | |
|     return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
 | |
|                                    HasNUW, HasNSW);
 | |
|   }
 | |
|   Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
 | |
|                      HasNUW, HasNSW);
 | |
|   }
 | |
|   Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
 | |
|                      HasNUW, HasNSW);
 | |
|   }
 | |
| 
 | |
|   Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
 | |
|     if (!isExact)
 | |
|       return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
 | |
|     return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
 | |
|   }
 | |
|   Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
 | |
|   }
 | |
| 
 | |
|   Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     if (Constant *LC = dyn_cast<Constant>(LHS))
 | |
|       if (Constant *RC = dyn_cast<Constant>(RHS))
 | |
|         return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
 | |
|     if (!isExact)
 | |
|       return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
 | |
|     return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
 | |
|   }
 | |
|   Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
 | |
|                     bool isExact = false) {
 | |
|     return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
 | |
|   }
 | |
| 
 | |
|   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 Insert(Folder.CreateAnd(LC, RC), Name);
 | |
|     }
 | |
|     return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | |
|     return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
 | |
|   }
 | |
|   Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | |
|     return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), 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 Insert(Folder.CreateOr(LC, RC), Name);
 | |
|     }
 | |
|     return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | |
|     return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
 | |
|   }
 | |
|   Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | |
|     return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), 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 Insert(Folder.CreateXor(LC, RC), Name);
 | |
|     return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
 | |
|   }
 | |
|   Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
 | |
|     return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
 | |
|   }
 | |
|   Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
 | |
|     return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), 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 Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
 | |
|     return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
 | |
|   }
 | |
| 
 | |
|   Value *CreateNeg(Value *V, const Twine &Name = "",
 | |
|                    bool HasNUW = false, bool HasNSW = false) {
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
 | |
|     BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
 | |
|     if (HasNUW) BO->setHasNoUnsignedWrap();
 | |
|     if (HasNSW) BO->setHasNoSignedWrap();
 | |
|     return BO;
 | |
|   }
 | |
|   Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
 | |
|     return CreateNeg(V, Name, false, true);
 | |
|   }
 | |
|   Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
 | |
|     return CreateNeg(V, Name, true, false);
 | |
|   }
 | |
|   Value *CreateFNeg(Value *V, const Twine &Name = "", MDNode *FPMathTag = 0) {
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateFNeg(VC), Name);
 | |
|     return Insert(AddFPMathTag(BinaryOperator::CreateFNeg(V), FPMathTag), Name);
 | |
|   }
 | |
|   Value *CreateNot(Value *V, const Twine &Name = "") {
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateNot(VC), Name);
 | |
|     return Insert(BinaryOperator::CreateNot(V), Name);
 | |
|   }
 | |
| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Instruction creation methods: Memory Instructions
 | |
|   //===--------------------------------------------------------------------===//
 | |
| 
 | |
|   AllocaInst *CreateAlloca(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));
 | |
|   }
 | |
|   FenceInst *CreateFence(AtomicOrdering Ordering,
 | |
|                          SynchronizationScope SynchScope = CrossThread) {
 | |
|     return Insert(new FenceInst(Context, Ordering, SynchScope));
 | |
|   }
 | |
|   AtomicCmpXchgInst *CreateAtomicCmpXchg(Value *Ptr, Value *Cmp, Value *New,
 | |
|                                          AtomicOrdering Ordering,
 | |
|                                SynchronizationScope SynchScope = CrossThread) {
 | |
|     return Insert(new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, SynchScope));
 | |
|   }
 | |
|   AtomicRMWInst *CreateAtomicRMW(AtomicRMWInst::BinOp Op, Value *Ptr, Value *Val,
 | |
|                                  AtomicOrdering Ordering,
 | |
|                                SynchronizationScope SynchScope = CrossThread) {
 | |
|     return Insert(new AtomicRMWInst(Op, Ptr, Val, Ordering, SynchScope));
 | |
|   }
 | |
|   Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
 | |
|                    const Twine &Name = "") {
 | |
|     if (Constant *PC = dyn_cast<Constant>(Ptr)) {
 | |
|       // Every index must be constant.
 | |
|       size_t i, e;
 | |
|       for (i = 0, e = IdxList.size(); i != e; ++i)
 | |
|         if (!isa<Constant>(IdxList[i]))
 | |
|           break;
 | |
|       if (i == e)
 | |
|         return Insert(Folder.CreateGetElementPtr(PC, IdxList), Name);
 | |
|     }
 | |
|     return Insert(GetElementPtrInst::Create(Ptr, IdxList), Name);
 | |
|   }
 | |
|   Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
 | |
|                            const Twine &Name = "") {
 | |
|     if (Constant *PC = dyn_cast<Constant>(Ptr)) {
 | |
|       // Every index must be constant.
 | |
|       size_t i, e;
 | |
|       for (i = 0, e = IdxList.size(); i != e; ++i)
 | |
|         if (!isa<Constant>(IdxList[i]))
 | |
|           break;
 | |
|       if (i == e)
 | |
|         return Insert(Folder.CreateInBoundsGetElementPtr(PC, IdxList), Name);
 | |
|     }
 | |
|     return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxList), 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 Insert(Folder.CreateGetElementPtr(PC, IC), Name);
 | |
|     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 Insert(Folder.CreateInBoundsGetElementPtr(PC, IC), Name);
 | |
|     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 Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::Create(Ptr, Idx), 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 Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), 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 Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::Create(Ptr, Idxs), 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 Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), 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 Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::Create(Ptr, Idx), 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 Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), 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 Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::Create(Ptr, Idxs), 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 Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
 | |
| 
 | |
|     return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs), 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(StringRef 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, Name);
 | |
|   }
 | |
| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Instruction creation methods: Cast/Conversion Operators
 | |
|   //===--------------------------------------------------------------------===//
 | |
| 
 | |
|   Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::Trunc, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::ZExt, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::SExt, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
 | |
|     return CreateCast(Instruction::FPToUI, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
 | |
|     return CreateCast(Instruction::FPToSI, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
 | |
|     return CreateCast(Instruction::UIToFP, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
 | |
|     return CreateCast(Instruction::SIToFP, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateFPTrunc(Value *V, Type *DestTy,
 | |
|                        const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::FPExt, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreatePtrToInt(Value *V, Type *DestTy,
 | |
|                         const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateIntToPtr(Value *V, Type *DestTy,
 | |
|                         const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateBitCast(Value *V, Type *DestTy,
 | |
|                        const Twine &Name = "") {
 | |
|     return CreateCast(Instruction::BitCast, V, DestTy, Name);
 | |
|   }
 | |
|   Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
 | |
|                              const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
 | |
|     return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
 | |
|   }
 | |
|   Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
 | |
|                              const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
 | |
|     return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
 | |
|   }
 | |
|   Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
 | |
|                               const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
 | |
|     return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
 | |
|   }
 | |
|   Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
 | |
|                     const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
 | |
|     return Insert(CastInst::Create(Op, V, DestTy), Name);
 | |
|   }
 | |
|   Value *CreatePointerCast(Value *V, Type *DestTy,
 | |
|                            const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
 | |
|     return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
 | |
|   }
 | |
|   Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
 | |
|                        const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
 | |
|     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 *, Type *, const char *); // DO NOT IMPLEMENT
 | |
| public:
 | |
|   Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
 | |
|     if (V->getType() == DestTy)
 | |
|       return V;
 | |
|     if (Constant *VC = dyn_cast<Constant>(V))
 | |
|       return Insert(Folder.CreateFPCast(VC, DestTy), Name);
 | |
|     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 Insert(Folder.CreateICmp(P, LC, RC), Name);
 | |
|     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 Insert(Folder.CreateFCmp(P, LC, RC), Name);
 | |
|     return Insert(new FCmpInst(P, LHS, RHS), Name);
 | |
|   }
 | |
| 
 | |
|   //===--------------------------------------------------------------------===//
 | |
|   // Instruction creation methods: Other Instructions
 | |
|   //===--------------------------------------------------------------------===//
 | |
| 
 | |
|   PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
 | |
|                      const Twine &Name = "") {
 | |
|     return Insert(PHINode::Create(Ty, NumReservedValues), 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), 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), 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), 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), Name);
 | |
|   }
 | |
| 
 | |
|   CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
 | |
|                        const Twine &Name = "") {
 | |
|     return Insert(CallInst::Create(Callee, Args), 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 Insert(Folder.CreateSelect(CC, TC, FC), Name);
 | |
|     return Insert(SelectInst::Create(C, True, False), Name);
 | |
|   }
 | |
| 
 | |
|   VAArgInst *CreateVAArg(Value *List, 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 Insert(Folder.CreateExtractElement(VC, IC), Name);
 | |
|     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 Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
 | |
|     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 Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
 | |
|     return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
 | |
|   }
 | |
| 
 | |
|   Value *CreateExtractValue(Value *Agg,
 | |
|                             ArrayRef<unsigned> Idxs,
 | |
|                             const Twine &Name = "") {
 | |
|     if (Constant *AggC = dyn_cast<Constant>(Agg))
 | |
|       return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
 | |
|     return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
 | |
|   }
 | |
| 
 | |
|   Value *CreateInsertValue(Value *Agg, Value *Val,
 | |
|                            ArrayRef<unsigned> Idxs,
 | |
|                            const Twine &Name = "") {
 | |
|     if (Constant *AggC = dyn_cast<Constant>(Agg))
 | |
|       if (Constant *ValC = dyn_cast<Constant>(Val))
 | |
|         return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
 | |
|     return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
 | |
|   }
 | |
| 
 | |
|   LandingPadInst *CreateLandingPad(Type *Ty, Value *PersFn, unsigned NumClauses,
 | |
|                                    const Twine &Name = "") {
 | |
|     return Insert(LandingPadInst::Create(Ty, PersFn, NumClauses, 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!");
 | |
|     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
 |