1894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===-- Constants.cpp - Implement Constant nodes --------------------------===// 2894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 3894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// The LLVM Compiler Infrastructure 4894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 5894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// This file is distributed under the University of Illinois Open Source 6894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// License. See LICENSE.TXT for details. 7894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 8894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 9894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 10894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// This file implements the Constant* classes. 11894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 12894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 13894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 14894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Constants.h" 15894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "LLVMContextImpl.h" 16894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "ConstantFold.h" 17894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/DerivedTypes.h" 18894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/GlobalValue.h" 19894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Instructions.h" 20894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Module.h" 21894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Operator.h" 22894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/FoldingSet.h" 23894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/StringExtras.h" 24894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/StringMap.h" 25894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/Compiler.h" 26894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/Debug.h" 27894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/ErrorHandling.h" 28894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/ManagedStatic.h" 29894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/MathExtras.h" 30894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/raw_ostream.h" 31894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/Support/GetElementPtrTypeIterator.h" 32894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/DenseMap.h" 33894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include "llvm/ADT/SmallVector.h" 3419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/ADT/STLExtras.h" 35894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#include <algorithm> 3619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include <cstdarg> 37894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanusing namespace llvm; 38894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 39894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 40894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Constant Class 41894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 42894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 4319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool Constant::isNegativeZeroValue() const { 4419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Floating point values have an explicit -0.0 value. 4519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantFP *CFP = dyn_cast<ConstantFP>(this)) 4619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CFP->isZero() && CFP->isNegative(); 4719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 4819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Otherwise, just use +0.0. 4919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return isNullValue(); 5019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 5119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 5219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool Constant::isNullValue() const { 5319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // 0 is null. 5419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantInt *CI = dyn_cast<ConstantInt>(this)) 5519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CI->isZero(); 5619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 5719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // +0.0 is null. 5819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantFP *CFP = dyn_cast<ConstantFP>(this)) 5919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CFP->isZero() && !CFP->isNegative(); 6019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 6119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // constant zero is zero for aggregates and cpnull is null for pointers. 6219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return isa<ConstantAggregateZero>(this) || isa<ConstantPointerNull>(this); 6319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 6419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 6519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool Constant::isAllOnesValue() const { 6619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Check for -1 integers 6719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantInt *CI = dyn_cast<ConstantInt>(this)) 6819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CI->isMinusOne(); 6919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 7019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Check for FP which are bitcasted from -1 integers 7119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantFP *CFP = dyn_cast<ConstantFP>(this)) 7219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CFP->getValueAPF().bitcastToAPInt().isAllOnesValue(); 7319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 7419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Check for constant vectors 7519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (const ConstantVector *CV = dyn_cast<ConstantVector>(this)) 7619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return CV->isAllOnesValue(); 7719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 7819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return false; 7919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 80894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Constructor to create a '0' constant of arbitrary type... 8119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *Constant::getNullValue(Type *Ty) { 82894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Ty->getTypeID()) { 83894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::IntegerTyID: 84894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantInt::get(Ty, 0); 85894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::FloatTyID: 8619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantFP::get(Ty->getContext(), 8719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat::getZero(APFloat::IEEEsingle)); 88894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::DoubleTyID: 8919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantFP::get(Ty->getContext(), 9019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat::getZero(APFloat::IEEEdouble)); 91894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::X86_FP80TyID: 9219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantFP::get(Ty->getContext(), 9319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat::getZero(APFloat::x87DoubleExtended)); 94894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::FP128TyID: 95894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantFP::get(Ty->getContext(), 9619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat::getZero(APFloat::IEEEquad)); 97894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::PPC_FP128TyID: 9819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantFP::get(Ty->getContext(), 9919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat(APInt::getNullValue(128))); 100894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::PointerTyID: 101894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantPointerNull::get(cast<PointerType>(Ty)); 102894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::StructTyID: 103894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::ArrayTyID: 104894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::VectorTyID: 105894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantAggregateZero::get(Ty); 106894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 107894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Function, Label, or Opaque type? 10819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(0 && "Cannot create a null constant of that type!"); 109894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return 0; 110894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 111894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 112894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 11319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *Constant::getIntegerValue(Type *Ty, const APInt &V) { 11419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ScalarTy = Ty->getScalarType(); 115894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 116894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Create the base integer constant. 117894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C = ConstantInt::get(Ty->getContext(), V); 118894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 119894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Convert an integer to a pointer, if necessary. 12019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (PointerType *PTy = dyn_cast<PointerType>(ScalarTy)) 121894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman C = ConstantExpr::getIntToPtr(C, PTy); 122894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 123894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Broadcast a scalar to a vector, if necessary. 12419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VTy = dyn_cast<VectorType>(Ty)) 125894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman C = ConstantVector::get(std::vector<Constant *>(VTy->getNumElements(), C)); 126894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 127894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; 128894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 129894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 13019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *Constant::getAllOnesValue(Type *Ty) { 13119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (IntegerType *ITy = dyn_cast<IntegerType>(Ty)) 132894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantInt::get(Ty->getContext(), 133894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APInt::getAllOnesValue(ITy->getBitWidth())); 13419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 13519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Ty->isFloatingPointTy()) { 13619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman APFloat FL = APFloat::getAllOnesValue(Ty->getPrimitiveSizeInBits(), 13719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman !Ty->isPPC_FP128Ty()); 13819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantFP::get(Ty->getContext(), FL); 13919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 14019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 14119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant*, 16> Elts; 14219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VectorType *VTy = cast<VectorType>(Ty); 143894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Elts.resize(VTy->getNumElements(), getAllOnesValue(VTy->getElementType())); 14419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Elts[0] && "Invalid AllOnes value!"); 145894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return cast<ConstantVector>(ConstantVector::get(Elts)); 146894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 147894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 148894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid Constant::destroyConstantImpl() { 149894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // When a Constant is destroyed, there may be lingering 150894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // references to the constant by other constants in the constant pool. These 151894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // constants are implicitly dependent on the module that is being deleted, 152894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // but they don't know that. Because we only find out when the CPV is 153894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // deleted, we must now notify all of our users (that should only be 154894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Constants) that they are, in fact, invalid now and should be deleted. 155894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // 156894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman while (!use_empty()) { 157894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Value *V = use_back(); 158894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG // Only in -g mode... 159894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!isa<Constant>(V)) { 160894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman dbgs() << "While deleting: " << *this 161894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman << "\n\nUse still stuck around after Def is destroyed: " 162894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman << *V << "\n\n"; 163894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 164894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 165894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(isa<Constant>(V) && "References remain to Constant being destroyed"); 166894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *CV = cast<Constant>(V); 167894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CV->destroyConstant(); 168894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 169894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // The constant should remove itself from our use list... 170894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((use_empty() || use_back() != V) && "Constant not removed!"); 171894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 172894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 173894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Value has no outstanding references it is safe to delete it now... 174894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman delete this; 175894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 176894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 177894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// canTrap - Return true if evaluation of this constant could trap. This is 178894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// true for things like constant expressions that could divide by zero. 179894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool Constant::canTrap() const { 180894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getType()->isFirstClassType() && "Cannot evaluate aggregate vals!"); 181894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // The only thing that could possibly trap are constant exprs. 182894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const ConstantExpr *CE = dyn_cast<ConstantExpr>(this); 183894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!CE) return false; 184894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 185894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // ConstantExpr traps if any operands can trap. 186894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 187894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (CE->getOperand(i)->canTrap()) 188894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 189894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 190894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Otherwise, only specific operations can trap. 191894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (CE->getOpcode()) { 192894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 193894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 194894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::UDiv: 195894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SDiv: 196894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FDiv: 197894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::URem: 198894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SRem: 199894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FRem: 200894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Div and rem can trap if the RHS is not known to be non-zero. 201894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!isa<ConstantInt>(CE->getOperand(1)) ||CE->getOperand(1)->isNullValue()) 202894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 203894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 204894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 205894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 206894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 207894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// isConstantUsed - Return true if the constant has users other than constant 208894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// exprs and other dangling things. 209894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool Constant::isConstantUsed() const { 210894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (const_use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI) { 211894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const Constant *UC = dyn_cast<Constant>(*UI); 212894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (UC == 0 || isa<GlobalValue>(UC)) 213894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 214894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 215894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (UC->isConstantUsed()) 216894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 217894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 218894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 219894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 220894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 221894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 222894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 223894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getRelocationInfo - This method classifies the entry according to 224894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// whether or not it may generate a relocation entry. This must be 225894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// conservative, so if it might codegen to a relocatable entry, it should say 226894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// so. The return values are: 227894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 228894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// NoRelocation: This constant pool entry is guaranteed to never have a 229894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// relocation applied to it (because it holds a simple constant like 230894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// '4'). 231894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// LocalRelocation: This entry has relocations, but the entries are 232894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// guaranteed to be resolvable by the static linker, so the dynamic 233894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// linker will never see them. 234894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// GlobalRelocations: This entry may have arbitrary relocations. 235894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 236894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// FIXME: This really should not be in VMCore. 237894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant::PossibleRelocationsTy Constant::getRelocationInfo() const { 238894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) { 239894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (GV->hasLocalLinkage() || GV->hasHiddenVisibility()) 240894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return LocalRelocation; // Local to this file/library. 241894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return GlobalRelocations; // Global reference. 242894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 243894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 244894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (const BlockAddress *BA = dyn_cast<BlockAddress>(this)) 245894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return BA->getFunction()->getRelocationInfo(); 246894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 247894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // While raw uses of blockaddress need to be relocated, differences between 248894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // two of them don't when they are for labels in the same function. This is a 249894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // common idiom when creating a table for the indirect goto extension, so we 250894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // handle it efficiently here. 251894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(this)) 252894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (CE->getOpcode() == Instruction::Sub) { 253894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantExpr *LHS = dyn_cast<ConstantExpr>(CE->getOperand(0)); 254894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantExpr *RHS = dyn_cast<ConstantExpr>(CE->getOperand(1)); 255894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (LHS && RHS && 256894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LHS->getOpcode() == Instruction::PtrToInt && 257894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman RHS->getOpcode() == Instruction::PtrToInt && 258894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isa<BlockAddress>(LHS->getOperand(0)) && 259894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isa<BlockAddress>(RHS->getOperand(0)) && 260894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<BlockAddress>(LHS->getOperand(0))->getFunction() == 261894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<BlockAddress>(RHS->getOperand(0))->getFunction()) 262894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return NoRelocation; 263894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 264894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 265894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman PossibleRelocationsTy Result = NoRelocation; 266894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 267894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Result = std::max(Result, 268894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman cast<Constant>(getOperand(i))->getRelocationInfo()); 269894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 270894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Result; 271894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 272894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 273894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 274894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getVectorElements - This method, which is only valid on constant of vector 275894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// type, returns the elements of the vector in the specified smallvector. 276894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// This handles breaking down a vector undef into undef elements, etc. For 277894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// constant exprs and other cases we can't handle, we return an empty vector. 278894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid Constant::getVectorElements(SmallVectorImpl<Constant*> &Elts) const { 279894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getType()->isVectorTy() && "Not a vector constant!"); 280894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 281894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (const ConstantVector *CV = dyn_cast<ConstantVector>(this)) { 282894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = CV->getNumOperands(); i != e; ++i) 283894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Elts.push_back(CV->getOperand(i)); 284894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 285894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 286894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 28719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VectorType *VT = cast<VectorType>(getType()); 288894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isa<ConstantAggregateZero>(this)) { 289894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Elts.assign(VT->getNumElements(), 290894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant::getNullValue(VT->getElementType())); 291894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 292894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 293894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 294894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isa<UndefValue>(this)) { 295894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Elts.assign(VT->getNumElements(), UndefValue::get(VT->getElementType())); 296894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 297894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 298894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 299894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Unknown type, must be constant expr etc. 300894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 301894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 302894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 30319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// removeDeadUsersOfConstant - If the specified constantexpr is dead, remove 30419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// it. This involves recursively eliminating any dead users of the 30519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// constantexpr. 30619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic bool removeDeadUsersOfConstant(const Constant *C) { 30719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (isa<GlobalValue>(C)) return false; // Cannot remove this 30819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 30919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman while (!C->use_empty()) { 31019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const Constant *User = dyn_cast<Constant>(C->use_back()); 31119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!User) return false; // Non-constant usage; 31219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!removeDeadUsersOfConstant(User)) 31319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return false; // Constant wasn't dead 31419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 31519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 31619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const_cast<Constant*>(C)->destroyConstant(); 31719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return true; 31819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 31919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 32019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 32119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// removeDeadConstantUsers - If there are any dead constant users dangling 32219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// off of this constant, remove them. This method is useful for clients 32319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// that want to check to see if a global is unused, but don't want to deal 32419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// with potentially dead constants hanging off of the globals. 32519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid Constant::removeDeadConstantUsers() const { 32619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Value::const_use_iterator I = use_begin(), E = use_end(); 32719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Value::const_use_iterator LastNonDeadUser = E; 32819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman while (I != E) { 32919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const Constant *User = dyn_cast<Constant>(*I); 33019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (User == 0) { 33119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LastNonDeadUser = I; 33219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ++I; 33319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 33419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 33519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 33619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!removeDeadUsersOfConstant(User)) { 33719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // If the constant wasn't dead, remember that this was the last live use 33819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // and move on to the next constant. 33919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LastNonDeadUser = I; 34019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ++I; 34119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman continue; 34219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 34319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 34419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // If the constant was dead, then the iterator is invalidated. 34519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (LastNonDeadUser == E) { 34619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman I = use_begin(); 34719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (I == E) break; 34819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } else { 34919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman I = LastNonDeadUser; 35019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ++I; 35119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 35219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 35319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 35419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 35519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 356894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 357894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 358894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantInt 359894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 360894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 36119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt::ConstantInt(IntegerType *Ty, const APInt& V) 362894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : Constant(Ty, ConstantIntVal, 0, 0), Val(V) { 363894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(V.getBitWidth() == Ty->getBitWidth() && "Invalid constant for type"); 364894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 365894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 36619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt *ConstantInt::getTrue(LLVMContext &Context) { 367894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = Context.pImpl; 36819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!pImpl->TheTrueVal) 36919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman pImpl->TheTrueVal = ConstantInt::get(Type::getInt1Ty(Context), 1); 37019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->TheTrueVal; 371894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 372894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 37319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt *ConstantInt::getFalse(LLVMContext &Context) { 374894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = Context.pImpl; 37519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!pImpl->TheFalseVal) 37619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman pImpl->TheFalseVal = ConstantInt::get(Type::getInt1Ty(Context), 0); 37719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->TheFalseVal; 37819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 37919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 38019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantInt::getTrue(Type *Ty) { 38119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VectorType *VTy = dyn_cast<VectorType>(Ty); 38219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!VTy) { 38319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Ty->isIntegerTy(1) && "True must be i1 or vector of i1."); 38419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantInt::getTrue(Ty->getContext()); 38519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 38619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VTy->getElementType()->isIntegerTy(1) && 38719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "True must be vector of i1 or i1."); 38819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant*, 16> Splat(VTy->getNumElements(), 38919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ConstantInt::getTrue(Ty->getContext())); 39019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantVector::get(Splat); 39119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 39219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 39319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantInt::getFalse(Type *Ty) { 39419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VectorType *VTy = dyn_cast<VectorType>(Ty); 39519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (!VTy) { 39619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Ty->isIntegerTy(1) && "False must be i1 or vector of i1."); 39719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantInt::getFalse(Ty->getContext()); 39819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 39919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(VTy->getElementType()->isIntegerTy(1) && 40019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "False must be vector of i1 or i1."); 40119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant*, 16> Splat(VTy->getNumElements(), 40219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ConstantInt::getFalse(Ty->getContext())); 40319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantVector::get(Splat); 404894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 405894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 406894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 407894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Get a ConstantInt from an APInt. Note that the value stored in the DenseMap 408894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// as the key, is a DenseMapAPIntKeyInfo::KeyTy which has provided the 409894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// operator== and operator!= to ensure that the DenseMap doesn't attempt to 410894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// compare APInt's of different widths, which would violate an APInt class 411894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// invariant which generates an assertion. 41219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt *ConstantInt::get(LLVMContext &Context, const APInt &V) { 413894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Get the corresponding integer type for the bit width of the value. 41419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman IntegerType *ITy = IntegerType::get(Context, V.getBitWidth()); 415894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // get an existing value or the insertion position 416894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DenseMapAPIntKeyInfo::KeyTy Key(V, ITy); 417894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantInt *&Slot = Context.pImpl->IntConstants[Key]; 418894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!Slot) Slot = new ConstantInt(ITy, V); 419894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Slot; 420894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 421894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 42219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantInt::get(Type *Ty, uint64_t V, bool isSigned) { 42319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *C = get(cast<IntegerType>(Ty->getScalarType()), V, isSigned); 424894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 425894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // For vectors, broadcast the value. 42619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VTy = dyn_cast<VectorType>(Ty)) 42719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantVector::get(SmallVector<Constant*, 42819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 16>(VTy->getNumElements(), C)); 429894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 430894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; 431894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 432894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 43319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt* ConstantInt::get(IntegerType* Ty, uint64_t V, 434894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isSigned) { 435894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Ty->getContext(), APInt(Ty->getBitWidth(), V, isSigned)); 436894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 437894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 43819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt* ConstantInt::getSigned(IntegerType* Ty, int64_t V) { 439894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Ty, V, true); 440894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 441894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 44219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantInt::getSigned(Type *Ty, int64_t V) { 443894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Ty, V, true); 444894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 445894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 44619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantInt::get(Type* Ty, const APInt& V) { 447894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantInt *C = get(Ty->getContext(), V); 448894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType() == Ty->getScalarType() && 449894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "ConstantInt type doesn't match the type implied by its value!"); 450894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 451894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // For vectors, broadcast the value. 45219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VTy = dyn_cast<VectorType>(Ty)) 453894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantVector::get( 45419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant *, 16>(VTy->getNumElements(), C)); 455894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 456894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; 457894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 458894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 45919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantInt* ConstantInt::get(IntegerType* Ty, StringRef Str, 460894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman uint8_t radix) { 461894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Ty->getContext(), APInt(Ty->getBitWidth(), Str, radix)); 462894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 463894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 464894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 465894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantFP 466894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 467894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 46819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic const fltSemantics *TypeToFloatSemantics(Type *Ty) { 469894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty->isFloatTy()) 470894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &APFloat::IEEEsingle; 471894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty->isDoubleTy()) 472894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &APFloat::IEEEdouble; 473894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty->isX86_FP80Ty()) 474894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &APFloat::x87DoubleExtended; 475894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else if (Ty->isFP128Ty()) 476894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &APFloat::IEEEquad; 477894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 478894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Ty->isPPC_FP128Ty() && "Unknown FP format"); 479894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &APFloat::PPCDoubleDouble; 480894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 481894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 482894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// get() - This returns a constant fp for the specified value in the 483894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// specified type. This should only be used for simple constant values like 484894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 2.0/1.0 etc, that are known-valid both as double and as the target format. 48519bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantFP::get(Type* Ty, double V) { 486894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContext &Context = Ty->getContext(); 487894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 488894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat FV(V); 489894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool ignored; 490894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman FV.convert(*TypeToFloatSemantics(Ty->getScalarType()), 491894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat::rmNearestTiesToEven, &ignored); 492894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C = get(Context, FV); 493894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 494894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // For vectors, broadcast the value. 49519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VTy = dyn_cast<VectorType>(Ty)) 496894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantVector::get( 49719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant *, 16>(VTy->getNumElements(), C)); 498894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 499894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; 500894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 501894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 502894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 50319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantFP::get(Type* Ty, StringRef Str) { 504894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContext &Context = Ty->getContext(); 505894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 506894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat FV(*TypeToFloatSemantics(Ty->getScalarType()), Str); 507894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C = get(Context, FV); 508894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 509894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // For vectors, broadcast the value. 51019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VTy = dyn_cast<VectorType>(Ty)) 511894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantVector::get( 51219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant *, 16>(VTy->getNumElements(), C)); 513894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 514894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; 515894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 516894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 517894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 51819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantFP* ConstantFP::getNegativeZero(Type* Ty) { 519894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContext &Context = Ty->getContext(); 520894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat apf = cast <ConstantFP>(Constant::getNullValue(Ty))->getValueAPF(); 521894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman apf.changeSign(); 522894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Context, apf); 523894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 524894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 525894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 52619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantFP::getZeroValueForNegation(Type* Ty) { 52719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *PTy = dyn_cast<VectorType>(Ty)) 528894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (PTy->getElementType()->isFloatingPointTy()) { 52919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant*, 16> zeros(PTy->getNumElements(), 530894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getNegativeZero(PTy->getElementType())); 53119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantVector::get(zeros); 532894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 533894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 534894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty->isFloatingPointTy()) 535894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getNegativeZero(Ty); 536894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 537894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Constant::getNullValue(Ty); 538894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 539894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 540894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 541894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantFP accessors. 542894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstantFP* ConstantFP::get(LLVMContext &Context, const APFloat& V) { 543894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman DenseMapAPFloatKeyInfo::KeyTy Key(V); 544894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 545894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl* pImpl = Context.pImpl; 546894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 547894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantFP *&Slot = pImpl->FPConstants[Key]; 548894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 549894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!Slot) { 55019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *Ty; 551894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (&V.getSemantics() == &APFloat::IEEEsingle) 552894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty = Type::getFloatTy(Context); 553894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else if (&V.getSemantics() == &APFloat::IEEEdouble) 554894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty = Type::getDoubleTy(Context); 555894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else if (&V.getSemantics() == &APFloat::x87DoubleExtended) 556894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty = Type::getX86_FP80Ty(Context); 557894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else if (&V.getSemantics() == &APFloat::IEEEquad) 558894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty = Type::getFP128Ty(Context); 559894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else { 560894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(&V.getSemantics() == &APFloat::PPCDoubleDouble && 561894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Unknown FP format"); 562894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty = Type::getPPC_FP128Ty(Context); 563894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 564894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Slot = new ConstantFP(Ty, V); 565894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 566894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 567894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Slot; 568894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 569894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 57019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantFP *ConstantFP::getInfinity(Type *Ty, bool Negative) { 571894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const fltSemantics &Semantics = *TypeToFloatSemantics(Ty); 572894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantFP::get(Ty->getContext(), 573894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat::getInf(Semantics, Negative)); 574894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 575894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 57619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantFP::ConstantFP(Type *Ty, const APFloat& V) 577894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : Constant(Ty, ConstantFPVal, 0, 0), Val(V) { 578894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(&V.getSemantics() == TypeToFloatSemantics(Ty) && 579894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "FP type Mismatch"); 580894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 581894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 58219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool ConstantFP::isExactlyValue(const APFloat &V) const { 583894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Val.bitwiseIsEqual(V); 584894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 585894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 586894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 587894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantXXX Classes 588894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 589894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 590894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 59119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantArray::ConstantArray(ArrayType *T, ArrayRef<Constant *> V) 592894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : Constant(T, ConstantArrayVal, 593894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandTraits<ConstantArray>::op_end(this) - V.size(), 594894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman V.size()) { 595894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(V.size() == T->getNumElements() && 596894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid initializer vector for constant array"); 59719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = V.size(); i != e; ++i) 59819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(V[i]->getType() == T->getElementType() && 599894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Initializer for array element doesn't match array element type!"); 60019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::copy(V.begin(), V.end(), op_begin()); 601894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 602894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 60319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantArray::get(ArrayType *Ty, ArrayRef<Constant*> V) { 604894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = V.size(); i != e; ++i) { 605894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(V[i]->getType() == Ty->getElementType() && 606894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Wrong type in array element initializer"); 607894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 608894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = Ty->getContext().pImpl; 609894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // If this is an all-zero array, return a ConstantAggregateZero object 610894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!V.empty()) { 611894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C = V[0]; 612894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!C->isNullValue()) 613894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ArrayConstants.getOrCreate(Ty, V); 614894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 615894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 1, e = V.size(); i != e; ++i) 616894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (V[i] != C) 617894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ArrayConstants.getOrCreate(Ty, V); 618894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 619894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 620894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantAggregateZero::get(Ty); 621894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 622894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 623894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// ConstantArray::get(const string&) - Return an array that is initialized to 624894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// contain the specified string. If length is zero then a null terminator is 625894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// added to the specified string so that it may be used in a natural way. 626894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// Otherwise, the length parameter specifies how much of the string to use 627894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// and it won't be null terminated. 628894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 62919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantArray::get(LLVMContext &Context, StringRef Str, 630894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool AddNull) { 631894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> ElementVals; 632894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ElementVals.reserve(Str.size() + size_t(AddNull)); 633894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0; i < Str.size(); ++i) 634894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ElementVals.push_back(ConstantInt::get(Type::getInt8Ty(Context), Str[i])); 635894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 636894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Add a null terminator to the string... 637894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (AddNull) { 638894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ElementVals.push_back(ConstantInt::get(Type::getInt8Ty(Context), 0)); 639894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 640894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 641894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArrayType *ATy = ArrayType::get(Type::getInt8Ty(Context), ElementVals.size()); 642894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(ATy, ElementVals); 643894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 644894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 64519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// getTypeForElements - Return an anonymous struct type to use for a constant 64619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// with the specified set of elements. The list must not be empty. 64719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanStructType *ConstantStruct::getTypeForElements(LLVMContext &Context, 64819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArrayRef<Constant*> V, 64919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool Packed) { 65019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Type*, 16> EltTypes; 65119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = V.size(); i != e; ++i) 65219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman EltTypes.push_back(V[i]->getType()); 65319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 65419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return StructType::get(Context, EltTypes, Packed); 65519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 65619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 65719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 65819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanStructType *ConstantStruct::getTypeForElements(ArrayRef<Constant*> V, 65919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool Packed) { 66019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(!V.empty() && 66119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "ConstantStruct::getTypeForElements cannot be called on empty list"); 66219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getTypeForElements(V[0]->getContext(), V, Packed); 66319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 664894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 665894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 66619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantStruct::ConstantStruct(StructType *T, ArrayRef<Constant *> V) 667894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : Constant(T, ConstantStructVal, 668894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandTraits<ConstantStruct>::op_end(this) - V.size(), 669894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman V.size()) { 670894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(V.size() == T->getNumElements() && 671894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid initializer vector for constant structure"); 67219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = V.size(); i != e; ++i) 67319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert((T->isOpaque() || V[i]->getType() == T->getElementType(i)) && 674894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Initializer for struct element doesn't match struct element type!"); 67519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::copy(V.begin(), V.end(), op_begin()); 676894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 677894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 678894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantStruct accessors. 67919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantStruct::get(StructType *ST, ArrayRef<Constant*> V) { 68019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Create a ConstantAggregateZero value if all elements are zeros. 681894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = V.size(); i != e; ++i) 682894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!V[i]->isNullValue()) 68319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ST->getContext().pImpl->StructConstants.getOrCreate(ST, V); 684894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 68519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert((ST->isOpaque() || ST->getNumElements() == V.size()) && 68619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "Incorrect # elements specified to ConstantStruct::get"); 68719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantAggregateZero::get(ST); 688894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 689894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 69019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantStruct::get(StructType *T, ...) { 69119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman va_list ap; 69219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman SmallVector<Constant*, 8> Values; 69319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman va_start(ap, T); 69419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman while (Constant *Val = va_arg(ap, llvm::Constant*)) 69519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Values.push_back(Val); 69619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman va_end(ap); 69719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(T, Values); 698894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 699894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 70019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantVector::ConstantVector(VectorType *T, ArrayRef<Constant *> V) 701894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : Constant(T, ConstantVectorVal, 702894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandTraits<ConstantVector>::op_end(this) - V.size(), 703894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman V.size()) { 70419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (size_t i = 0, e = V.size(); i != e; i++) 70519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(V[i]->getType() == T->getElementType() && 706894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Initializer for vector element doesn't match vector element type!"); 70719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::copy(V.begin(), V.end(), op_begin()); 708894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 709894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 710894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// ConstantVector accessors. 71119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantVector::get(ArrayRef<Constant*> V) { 71219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(!V.empty() && "Vectors can't be empty"); 71319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman VectorType *T = VectorType::get(V.front()->getType(), V.size()); 71419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = T->getContext().pImpl; 71519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 71619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // If this is an all-undef or all-zero vector, return a 717894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // ConstantAggregateZero or UndefValue. 718894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C = V[0]; 719894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isZero = C->isNullValue(); 720894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isUndef = isa<UndefValue>(C); 721894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 722894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isZero || isUndef) { 723894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 1, e = V.size(); i != e; ++i) 724894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (V[i] != C) { 725894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isZero = isUndef = false; 726894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 727894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 728894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 729894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 730894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isZero) 731894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantAggregateZero::get(T); 732894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isUndef) 733894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return UndefValue::get(T); 734894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 735894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->VectorConstants.getOrCreate(T, V); 736894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 737894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 738894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Utility function for determining if a ConstantExpr is a CastOp or not. This 739894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// can't be inline because we don't want to #include Instruction.h into 740894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Constant.h 741894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantExpr::isCast() const { 742894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Instruction::isCast(getOpcode()); 743894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 744894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 745894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantExpr::isCompare() const { 746894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getOpcode() == Instruction::ICmp || getOpcode() == Instruction::FCmp; 747894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 748894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 749894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantExpr::isGEPWithNoNotionalOverIndexing() const { 750894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOpcode() != Instruction::GetElementPtr) return false; 751894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 752894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman gep_type_iterator GEPI = gep_type_begin(this), E = gep_type_end(this); 753894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman User::const_op_iterator OI = llvm::next(this->op_begin()); 754894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 755894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Skip the first index, as it has no static limit. 756894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ++GEPI; 757894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ++OI; 758894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 759894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // The remaining indices must be compile-time known integers within the 760894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // bounds of the corresponding notional static array types. 761894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (; GEPI != E; ++GEPI, ++OI) { 762894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantInt *CI = dyn_cast<ConstantInt>(*OI); 763894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!CI) return false; 76419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (ArrayType *ATy = dyn_cast<ArrayType>(*GEPI)) 765894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (CI->getValue().getActiveBits() > 64 || 766894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman CI->getZExtValue() >= ATy->getNumElements()) 767894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 768894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 769894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 770894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // All the indices checked out. 771894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 772894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 773894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 774894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantExpr::hasIndices() const { 775894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getOpcode() == Instruction::ExtractValue || 776894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getOpcode() == Instruction::InsertValue; 777894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 778894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 77919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanArrayRef<unsigned> ConstantExpr::getIndices() const { 780894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (const ExtractValueConstantExpr *EVCE = 781894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman dyn_cast<ExtractValueConstantExpr>(this)) 782894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return EVCE->Indices; 783894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 784894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return cast<InsertValueConstantExpr>(this)->Indices; 785894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 786894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 787894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanunsigned ConstantExpr::getPredicate() const { 78819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(isCompare()); 789894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ((const CompareConstantExpr*)this)->predicate; 790894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 791894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 792894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getWithOperandReplaced - Return a constant expression identical to this 793894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// one, but with the specified operand set to the specified value. 794894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant * 795894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstantExpr::getWithOperandReplaced(unsigned OpNo, Constant *Op) const { 796894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(OpNo < getNumOperands() && "Operand num is out of range!"); 797894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Op->getType() == getOperand(OpNo)->getType() && 798894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Replacing operand with value of different type!"); 799894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOperand(OpNo) == Op) 800894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return const_cast<ConstantExpr*>(this); 801894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 802894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Op0, *Op1, *Op2; 803894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (getOpcode()) { 804894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Trunc: 805894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ZExt: 806894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SExt: 807894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPTrunc: 808894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPExt: 809894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::UIToFP: 810894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SIToFP: 811894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToUI: 812894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToSI: 813894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::PtrToInt: 814894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::IntToPtr: 815894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::BitCast: 816894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getCast(getOpcode(), Op, getType()); 817894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Select: 818894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op0 = (OpNo == 0) ? Op : getOperand(0); 819894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op1 = (OpNo == 1) ? Op : getOperand(1); 820894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op2 = (OpNo == 2) ? Op : getOperand(2); 821894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getSelect(Op0, Op1, Op2); 822894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::InsertElement: 823894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op0 = (OpNo == 0) ? Op : getOperand(0); 824894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op1 = (OpNo == 1) ? Op : getOperand(1); 825894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op2 = (OpNo == 2) ? Op : getOperand(2); 826894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getInsertElement(Op0, Op1, Op2); 827894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ExtractElement: 828894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op0 = (OpNo == 0) ? Op : getOperand(0); 829894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op1 = (OpNo == 1) ? Op : getOperand(1); 830894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getExtractElement(Op0, Op1); 831894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ShuffleVector: 832894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op0 = (OpNo == 0) ? Op : getOperand(0); 833894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op1 = (OpNo == 1) ? Op : getOperand(1); 834894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op2 = (OpNo == 2) ? Op : getOperand(2); 835894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getShuffleVector(Op0, Op1, Op2); 836894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::GetElementPtr: { 837894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<Constant*, 8> Ops; 838894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ops.resize(getNumOperands()-1); 839894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 1, e = getNumOperands(); i != e; ++i) 840894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ops[i-1] = getOperand(i); 841894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (OpNo == 0) 84219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 84319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ConstantExpr::getGetElementPtr(Op, Ops, 84419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman cast<GEPOperator>(this)->isInBounds()); 845894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ops[OpNo-1] = Op; 84619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 84719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ConstantExpr::getGetElementPtr(getOperand(0), Ops, 84819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman cast<GEPOperator>(this)->isInBounds()); 849894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 850894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 851894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getNumOperands() == 2 && "Must be binary operator?"); 852894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op0 = (OpNo == 0) ? Op : getOperand(0); 853894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Op1 = (OpNo == 1) ? Op : getOperand(1); 854894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::get(getOpcode(), Op0, Op1, SubclassOptionalData); 855894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 856894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 857894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 858894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getWithOperands - This returns the current constant expression with the 85919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// operands replaced with the specified values. The specified array must 86019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// have the same number of operands as our current one. 861894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr:: 86219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumangetWithOperands(ArrayRef<Constant*> Ops, Type *Ty) const { 86319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Ops.size() == getNumOperands() && "Operand count mismatch!"); 86419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool AnyChange = Ty != getType(); 86519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0; i != Ops.size(); ++i) 866894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman AnyChange |= Ops[i] != getOperand(i); 86719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 868894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!AnyChange) // No operands changed, return self. 869894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return const_cast<ConstantExpr*>(this); 870894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 871894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (getOpcode()) { 872894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Trunc: 873894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ZExt: 874894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SExt: 875894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPTrunc: 876894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPExt: 877894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::UIToFP: 878894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SIToFP: 879894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToUI: 880894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToSI: 881894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::PtrToInt: 882894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::IntToPtr: 883894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::BitCast: 88419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return ConstantExpr::getCast(getOpcode(), Ops[0], Ty); 885894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Select: 886894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getSelect(Ops[0], Ops[1], Ops[2]); 887894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::InsertElement: 888894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getInsertElement(Ops[0], Ops[1], Ops[2]); 889894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ExtractElement: 890894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getExtractElement(Ops[0], Ops[1]); 891894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ShuffleVector: 892894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getShuffleVector(Ops[0], Ops[1], Ops[2]); 893894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::GetElementPtr: 89419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 89519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ConstantExpr::getGetElementPtr(Ops[0], Ops.slice(1), 89619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman cast<GEPOperator>(this)->isInBounds()); 897894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ICmp: 898894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FCmp: 899894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::getCompare(getPredicate(), Ops[0], Ops[1]); 900894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 901894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getNumOperands() == 2 && "Must be binary operator?"); 902894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return ConstantExpr::get(getOpcode(), Ops[0], Ops[1], SubclassOptionalData); 903894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 904894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 905894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 906894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 907894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 908894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// isValueValidForType implementations 909894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 91019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool ConstantInt::isValueValidForType(Type *Ty, uint64_t Val) { 911894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned NumBits = cast<IntegerType>(Ty)->getBitWidth(); // assert okay 912894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty == Type::getInt1Ty(Ty->getContext())) 913894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Val == 0 || Val == 1; 914894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (NumBits >= 64) 915894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; // always true, has to fit in largest type 916894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman uint64_t Max = (1ll << NumBits) - 1; 917894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Val <= Max; 918894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 919894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 92019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool ConstantInt::isValueValidForType(Type *Ty, int64_t Val) { 921894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned NumBits = cast<IntegerType>(Ty)->getBitWidth(); // assert okay 922894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty == Type::getInt1Ty(Ty->getContext())) 923894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Val == 0 || Val == 1 || Val == -1; 924894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (NumBits >= 64) 925894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; // always true, has to fit in largest type 926894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman int64_t Min = -(1ll << (NumBits-1)); 927894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman int64_t Max = (1ll << (NumBits-1)) - 1; 928894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return (Val >= Min && Val <= Max); 929894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 930894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 93119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanbool ConstantFP::isValueValidForType(Type *Ty, const APFloat& Val) { 932894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // convert modifies in place, so make a copy. 933894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman APFloat Val2 = APFloat(Val); 934894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool losesInfo; 935894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Ty->getTypeID()) { 936894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 937894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; // These can't be represented as floating point! 938894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 939894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // FIXME rounding mode needs to be more flexible 940894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::FloatTyID: { 941894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (&Val2.getSemantics() == &APFloat::IEEEsingle) 942894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 943894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Val2.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo); 944894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return !losesInfo; 945894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 946894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::DoubleTyID: { 947894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (&Val2.getSemantics() == &APFloat::IEEEsingle || 948894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::IEEEdouble) 949894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 950894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Val2.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); 951894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return !losesInfo; 952894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 953894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::X86_FP80TyID: 954894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &Val2.getSemantics() == &APFloat::IEEEsingle || 955894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::IEEEdouble || 956894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::x87DoubleExtended; 957894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::FP128TyID: 958894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &Val2.getSemantics() == &APFloat::IEEEsingle || 959894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::IEEEdouble || 960894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::IEEEquad; 961894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Type::PPC_FP128TyID: 962894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return &Val2.getSemantics() == &APFloat::IEEEsingle || 963894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::IEEEdouble || 964894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Val2.getSemantics() == &APFloat::PPCDoubleDouble; 965894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 966894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 967894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 968894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 969894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// Factory Function Implementation 970894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 97119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantAggregateZero* ConstantAggregateZero::get(Type* Ty) { 97219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert((Ty->isStructTy() || Ty->isArrayTy() || Ty->isVectorTy()) && 973894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Cannot create an aggregate zero of non-aggregate type!"); 974894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 975894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = Ty->getContext().pImpl; 976894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->AggZeroConstants.getOrCreate(Ty, 0); 977894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 978894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 979894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// destroyConstant - Remove the constant from the constant table... 980894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 981894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantAggregateZero::destroyConstant() { 98219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->AggZeroConstants.remove(this); 983894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 984894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 985894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 986894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// destroyConstant - Remove the constant from the constant table... 987894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 988894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantArray::destroyConstant() { 98919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->ArrayConstants.remove(this); 990894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 991894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 992894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 993894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// isString - This method returns true if the array is an array of i8, and 994894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// if the elements of the array are all ConstantInt's. 995894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantArray::isString() const { 996894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check the element type for i8... 997894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!getType()->getElementType()->isIntegerTy(8)) 998894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 999894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check the elements to make sure they are all integers, not constant 1000894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // expressions. 1001894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1002894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!isa<ConstantInt>(getOperand(i))) 1003894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1004894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 1005894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1006894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1007894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// isCString - This method returns true if the array is a string (see 1008894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// isString) and it ends in a null byte \\0 and does not contains any other 1009894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// null bytes except its terminator. 1010894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantArray::isCString() const { 1011894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check the element type for i8... 1012894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!getType()->getElementType()->isIntegerTy(8)) 1013894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1014894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1015894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Last element must be a null. 1016894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!getOperand(getNumOperands()-1)->isNullValue()) 1017894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1018894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Other elements must be non-null integers. 1019894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands()-1; i != e; ++i) { 1020894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!isa<ConstantInt>(getOperand(i))) 1021894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1022894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOperand(i)->isNullValue()) 1023894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return false; 1024894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1025894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return true; 1026894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1027894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1028894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 102919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// convertToString - Helper function for getAsString() and getAsCString(). 103019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic std::string convertToString(const User *U, unsigned len) { 1031894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::string Result; 103219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Result.reserve(len); 103319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0; i != len; ++i) 103419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Result.push_back((char)cast<ConstantInt>(U->getOperand(i))->getZExtValue()); 1035894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Result; 1036894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1037894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 103819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// getAsString - If this array is isString(), then this method converts the 103919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// array to an std::string and returns it. Otherwise, it asserts out. 104019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// 104119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstd::string ConstantArray::getAsString() const { 104219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(isString() && "Not a string!"); 104319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return convertToString(this, getNumOperands()); 104419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 1045894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1046894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 104719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// getAsCString - If this array is isCString(), then this method converts the 104819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// array (without the trailing null byte) to an std::string and returns it. 104919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// Otherwise, it asserts out. 105019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// 105119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstd::string ConstantArray::getAsCString() const { 105219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(isCString() && "Not a string!"); 105319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return convertToString(this, getNumOperands() - 1); 1054894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1055894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 105619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 105719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman//---- ConstantStruct::get() implementation... 1058894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1059894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1060894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table... 1061894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 106219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid ConstantStruct::destroyConstant() { 106319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->StructConstants.remove(this); 1064894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1065894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1066894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1067894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table... 1068894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1069894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantVector::destroyConstant() { 107019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->VectorConstants.remove(this); 1071894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1072894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1073894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1074894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// This function will return true iff every element in this vector constant 1075894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// is set to all ones. 107619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman/// @returns true iff this constant's elements are all set to all ones. 1077894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// @brief Determine if the value is all ones. 1078894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanbool ConstantVector::isAllOnesValue() const { 1079894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check out first element. 1080894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const Constant *Elt = getOperand(0); 1081894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const ConstantInt *CI = dyn_cast<ConstantInt>(Elt); 108219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const ConstantFP *CF = dyn_cast<ConstantFP>(Elt); 108319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1084894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Then make sure all remaining elements point to the same value. 108519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned I = 1, E = getNumOperands(); I < E; ++I) 108619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (getOperand(I) != Elt) 108719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return false; 108819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 108919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // First value is all-ones. 109019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return (CI && CI->isAllOnesValue()) || 109119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (CF && CF->isAllOnesValue()); 1092894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1093894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1094894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// getSplatValue - If this is a splat constant, where all of the 1095894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// elements have the same value, return that value. Otherwise return null. 109619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantVector::getSplatValue() const { 1097894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check out first element. 1098894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Elt = getOperand(0); 1099894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Then make sure all remaining elements point to the same value. 1100894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned I = 1, E = getNumOperands(); I < E; ++I) 110119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (getOperand(I) != Elt) 110219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 0; 1103894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Elt; 1104894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1105894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1106894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//---- ConstantPointerNull::get() implementation. 1107894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1108894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 110919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstantPointerNull *ConstantPointerNull::get(PointerType *Ty) { 1110894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Ty->getContext().pImpl->NullPtrConstants.getOrCreate(Ty, 0); 1111894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1112894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1113894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table... 1114894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1115894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantPointerNull::destroyConstant() { 111619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->NullPtrConstants.remove(this); 1117894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1118894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1119894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1120894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1121894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//---- UndefValue::get() implementation. 1122894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1123894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 112419bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanUndefValue *UndefValue::get(Type *Ty) { 1125894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Ty->getContext().pImpl->UndefValueConstants.getOrCreate(Ty, 0); 1126894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1127894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1128894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table. 1129894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1130894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid UndefValue::destroyConstant() { 113119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->UndefValueConstants.remove(this); 1132894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1133894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1134894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1135894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//---- BlockAddress::get() implementation. 1136894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1137894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1138894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanBlockAddress *BlockAddress::get(BasicBlock *BB) { 1139894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(BB->getParent() != 0 && "Block must have a parent"); 1140894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(BB->getParent(), BB); 1141894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1142894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1143894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanBlockAddress *BlockAddress::get(Function *F, BasicBlock *BB) { 1144894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BlockAddress *&BA = 1145894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman F->getContext().pImpl->BlockAddresses[std::make_pair(F, BB)]; 1146894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (BA == 0) 1147894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BA = new BlockAddress(F, BB); 1148894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1149894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(BA->getFunction() == F && "Basic block moved between functions"); 1150894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return BA; 1151894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1152894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1153894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanBlockAddress::BlockAddress(Function *F, BasicBlock *BB) 1154894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman: Constant(Type::getInt8PtrTy(F->getContext()), Value::BlockAddressVal, 1155894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman &Op<0>(), 2) { 1156894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(0, F); 1157894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(1, BB); 1158894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BB->AdjustBlockAddressRefCount(1); 1159894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1160894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1161894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1162894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table. 1163894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1164894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid BlockAddress::destroyConstant() { 116519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getFunction()->getType()->getContext().pImpl 1166894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ->BlockAddresses.erase(std::make_pair(getFunction(), getBasicBlock())); 1167894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getBasicBlock()->AdjustBlockAddressRefCount(-1); 1168894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1169894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1170894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1171894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid BlockAddress::replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) { 1172894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // This could be replacing either the Basic Block or the Function. In either 1173894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // case, we have to remove the map entry. 1174894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Function *NewF = getFunction(); 1175894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BasicBlock *NewBB = getBasicBlock(); 1176894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1177894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (U == &Op<0>()) 1178894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman NewF = cast<Function>(To); 1179894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else 1180894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman NewBB = cast<BasicBlock>(To); 1181894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1182894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // See if the 'new' entry already exists, if not, just update this in place 1183894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // and return early. 1184894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman BlockAddress *&NewBA = 1185894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getContext().pImpl->BlockAddresses[std::make_pair(NewF, NewBB)]; 1186894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (NewBA == 0) { 1187894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getBasicBlock()->AdjustBlockAddressRefCount(-1); 1188894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1189894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Remove the old entry, this can't cause the map to rehash (just a 1190894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // tombstone will get added). 1191894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getContext().pImpl->BlockAddresses.erase(std::make_pair(getFunction(), 1192894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getBasicBlock())); 1193894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman NewBA = this; 1194894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(0, NewF); 1195894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(1, NewBB); 1196894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman getBasicBlock()->AdjustBlockAddressRefCount(1); 1197894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 1198894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1199894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1200894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Otherwise, I do need to replace this with an existing value. 1201894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(NewBA != this && "I didn't contain From!"); 1202894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1203894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Everyone using this now uses the replacement. 120419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman replaceAllUsesWith(NewBA); 1205894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1206894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstant(); 1207894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1208894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1209894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//---- ConstantExpr::get() implementations. 1210894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1211894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1212894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// This is a utility function to handle folding of casts and lookup of the 1213894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// cast in the ExprConstants map. It is used by the various get* methods below. 1214894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanstatic inline Constant *getFoldedCast( 121519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Instruction::CastOps opc, Constant *C, Type *Ty) { 1216894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Ty->isFirstClassType() && "Cannot cast to an aggregate type!"); 1217894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Fold a few common cases 1218894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Constant *FC = ConstantFoldCastInstruction(opc, C, Ty)) 1219894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return FC; 1220894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1221894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = Ty->getContext().pImpl; 1222894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1223894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 1224894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> argVec(1, C); 1225894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ExprMapKeyType Key(opc, argVec); 1226894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1227894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ExprConstants.getOrCreate(Ty, Key); 1228894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1229894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 123019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getCast(unsigned oc, Constant *C, Type *Ty) { 1231894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Instruction::CastOps opc = Instruction::CastOps(oc); 1232894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Instruction::isCast(opc) && "opcode out of range"); 1233894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C && Ty && "Null arguments to getCast"); 1234894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(CastInst::castIsValid(opc, C, Ty) && "Invalid constantexpr cast!"); 1235894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1236894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (opc) { 1237894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 1238894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman llvm_unreachable("Invalid cast opcode"); 1239894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1240894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Trunc: return getTrunc(C, Ty); 1241894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::ZExt: return getZExt(C, Ty); 1242894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SExt: return getSExt(C, Ty); 1243894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPTrunc: return getFPTrunc(C, Ty); 1244894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPExt: return getFPExtend(C, Ty); 1245894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::UIToFP: return getUIToFP(C, Ty); 1246894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SIToFP: return getSIToFP(C, Ty); 1247894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToUI: return getFPToUI(C, Ty); 1248894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FPToSI: return getFPToSI(C, Ty); 1249894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::PtrToInt: return getPtrToInt(C, Ty); 1250894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::IntToPtr: return getIntToPtr(C, Ty); 1251894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::BitCast: return getBitCast(C, Ty); 1252894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1253894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return 0; 1254894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1255894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 125619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getZExtOrBitCast(Constant *C, Type *Ty) { 1257894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C->getType()->getScalarSizeInBits() == Ty->getScalarSizeInBits()) 1258894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getBitCast(C, Ty); 1259894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getZExt(C, Ty); 1260894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1261894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 126219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSExtOrBitCast(Constant *C, Type *Ty) { 1263894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C->getType()->getScalarSizeInBits() == Ty->getScalarSizeInBits()) 1264894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getBitCast(C, Ty); 1265894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getSExt(C, Ty); 1266894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1267894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 126819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getTruncOrBitCast(Constant *C, Type *Ty) { 1269894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C->getType()->getScalarSizeInBits() == Ty->getScalarSizeInBits()) 1270894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getBitCast(C, Ty); 1271894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getTrunc(C, Ty); 1272894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1273894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 127419bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getPointerCast(Constant *S, Type *Ty) { 1275894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(S->getType()->isPointerTy() && "Invalid cast"); 1276894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((Ty->isIntegerTy() || Ty->isPointerTy()) && "Invalid cast"); 1277894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1278894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Ty->isIntegerTy()) 1279894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getPtrToInt(S, Ty); 1280894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getBitCast(S, Ty); 1281894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1282894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 128319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getIntegerCast(Constant *C, Type *Ty, 1284894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isSigned) { 1285894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && 1286894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Ty->isIntOrIntVectorTy() && "Invalid cast"); 1287894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned SrcBits = C->getType()->getScalarSizeInBits(); 1288894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned DstBits = Ty->getScalarSizeInBits(); 1289894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Instruction::CastOps opcode = 1290894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman (SrcBits == DstBits ? Instruction::BitCast : 1291894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman (SrcBits > DstBits ? Instruction::Trunc : 1292894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman (isSigned ? Instruction::SExt : Instruction::ZExt))); 1293894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getCast(opcode, C, Ty); 1294894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1295894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 129619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFPCast(Constant *C, Type *Ty) { 1297894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && Ty->isFPOrFPVectorTy() && 1298894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid cast"); 1299894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned SrcBits = C->getType()->getScalarSizeInBits(); 1300894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned DstBits = Ty->getScalarSizeInBits(); 1301894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (SrcBits == DstBits) 1302894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return C; // Avoid a useless cast 1303894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Instruction::CastOps opcode = 130419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (SrcBits > DstBits ? Instruction::FPTrunc : Instruction::FPExt); 1305894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getCast(opcode, C, Ty); 1306894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1307894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 130819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getTrunc(Constant *C, Type *Ty) { 1309894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1310894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1311894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1312894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1313894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1314894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && "Trunc operand must be integer"); 1315894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Ty->isIntOrIntVectorTy() && "Trunc produces only integral"); 1316894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->getScalarSizeInBits() > Ty->getScalarSizeInBits()&& 1317894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "SrcTy must be larger than DestTy for Trunc!"); 1318894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1319894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::Trunc, C, Ty); 1320894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1321894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 132219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSExt(Constant *C, Type *Ty) { 1323894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1324894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1325894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1326894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1327894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1328894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && "SExt operand must be integral"); 1329894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Ty->isIntOrIntVectorTy() && "SExt produces only integer"); 1330894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->getScalarSizeInBits() < Ty->getScalarSizeInBits()&& 1331894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "SrcTy must be smaller than DestTy for SExt!"); 1332894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1333894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::SExt, C, Ty); 1334894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1335894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 133619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getZExt(Constant *C, Type *Ty) { 1337894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1338894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1339894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1340894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1341894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1342894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && "ZEXt operand must be integral"); 1343894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Ty->isIntOrIntVectorTy() && "ZExt produces only integer"); 1344894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->getScalarSizeInBits() < Ty->getScalarSizeInBits()&& 1345894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "SrcTy must be smaller than DestTy for ZExt!"); 1346894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1347894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::ZExt, C, Ty); 1348894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1349894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 135019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFPTrunc(Constant *C, Type *Ty) { 1351894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1352894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1353894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1354894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1355894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1356894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && Ty->isFPOrFPVectorTy() && 1357894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman C->getType()->getScalarSizeInBits() > Ty->getScalarSizeInBits()&& 1358894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal floating point truncation!"); 1359894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::FPTrunc, C, Ty); 1360894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1361894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 136219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFPExtend(Constant *C, Type *Ty) { 1363894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1364894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1365894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1366894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1367894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1368894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && Ty->isFPOrFPVectorTy() && 1369894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman C->getType()->getScalarSizeInBits() < Ty->getScalarSizeInBits()&& 1370894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal floating point extension!"); 1371894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::FPExt, C, Ty); 1372894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1373894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 137419bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getUIToFP(Constant *C, Type *Ty) { 1375894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1376894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1377894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1378894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1379894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1380894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && Ty->isFPOrFPVectorTy() && 1381894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal uint to floating point cast!"); 1382894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::UIToFP, C, Ty); 1383894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1384894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 138519bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSIToFP(Constant *C, Type *Ty) { 1386894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1387894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1388894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1389894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1390894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1391894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && Ty->isFPOrFPVectorTy() && 1392894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal sint to floating point cast!"); 1393894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::SIToFP, C, Ty); 1394894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1395894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 139619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFPToUI(Constant *C, Type *Ty) { 1397894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1398894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1399894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1400894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1401894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1402894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && Ty->isIntOrIntVectorTy() && 1403894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal floating point to uint cast!"); 1404894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::FPToUI, C, Ty); 1405894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1406894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 140719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFPToSI(Constant *C, Type *Ty) { 1408894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1409894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool fromVec = C->getType()->getTypeID() == Type::VectorTyID; 1410894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool toVec = Ty->getTypeID() == Type::VectorTyID; 1411894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1412894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert((fromVec == toVec) && "Cannot convert from scalar to/from vector"); 1413894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && Ty->isIntOrIntVectorTy() && 1414894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "This is an illegal floating point to sint cast!"); 1415894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::FPToSI, C, Ty); 1416894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1417894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 141819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getPtrToInt(Constant *C, Type *DstTy) { 1419894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isPointerTy() && "PtrToInt source must be pointer"); 1420894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(DstTy->isIntegerTy() && "PtrToInt destination must be integral"); 1421894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::PtrToInt, C, DstTy); 1422894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1423894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 142419bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getIntToPtr(Constant *C, Type *DstTy) { 1425894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntegerTy() && "IntToPtr source must be integral"); 1426894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(DstTy->isPointerTy() && "IntToPtr destination must be a pointer"); 1427894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::IntToPtr, C, DstTy); 1428894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1429894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 143019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getBitCast(Constant *C, Type *DstTy) { 1431894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(CastInst::castIsValid(Instruction::BitCast, C, DstTy) && 1432894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid constantexpr bitcast!"); 1433894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1434894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // It is common to ask for a bitcast of a value to its own type, handle this 1435894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // speedily. 1436894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C->getType() == DstTy) return C; 1437894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1438894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getFoldedCast(Instruction::BitCast, C, DstTy); 1439894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1440894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 144119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2, 144219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Flags) { 144319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Check the operands for consistency first. 1444894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Opcode >= Instruction::BinaryOpsBegin && 1445894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Opcode < Instruction::BinaryOpsEnd && 1446894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid opcode in binary constant expression"); 1447894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && 1448894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Operand types in binary constant expression should match"); 1449894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1450894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#ifndef NDEBUG 1451894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman switch (Opcode) { 1452894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Add: 1453894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Sub: 1454894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Mul: 1455894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1456894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isIntOrIntVectorTy() && 1457894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create an integer operation on a non-integer type!"); 1458894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1459894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FAdd: 1460894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FSub: 1461894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FMul: 1462894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1463894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isFPOrFPVectorTy() && 1464894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create a floating-point operation on a " 1465894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "non-floating-point type!"); 1466894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1467894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::UDiv: 1468894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SDiv: 1469894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1470894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isIntOrIntVectorTy() && 1471894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create an arithmetic operation on a non-arithmetic type!"); 1472894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1473894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FDiv: 1474894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1475894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isFPOrFPVectorTy() && 1476894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create an arithmetic operation on a non-arithmetic type!"); 1477894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1478894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::URem: 1479894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::SRem: 1480894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1481894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isIntOrIntVectorTy() && 1482894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create an arithmetic operation on a non-arithmetic type!"); 1483894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1484894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::FRem: 1485894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1486894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isFPOrFPVectorTy() && 1487894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create an arithmetic operation on a non-arithmetic type!"); 1488894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1489894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::And: 1490894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Or: 1491894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Xor: 1492894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1493894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isIntOrIntVectorTy() && 1494894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create a logical operation on a non-integral type!"); 1495894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1496894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::Shl: 1497894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::LShr: 1498894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman case Instruction::AShr: 1499894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 1500894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType()->isIntOrIntVectorTy() && 1501894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create a shift operation on a non-integer type!"); 1502894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1503894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman default: 1504894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman break; 1505894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1506894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman#endif 1507894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 150819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *FC = ConstantFoldBinaryInstruction(Opcode, C1, C2)) 150919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FC; // Fold a few common cases. 151019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 151119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::vector<Constant*> argVec(1, C1); 151219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman argVec.push_back(C2); 151319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ExprMapKeyType Key(Opcode, argVec, 0, Flags); 151419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 151519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = C1->getContext().pImpl; 151619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->ExprConstants.getOrCreate(C1->getType(), Key); 1517894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1518894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 151919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSizeOf(Type* Ty) { 1520894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // sizeof is implemented as: (i64) gep (Ty*)null, 1 1521894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Note that a non-inbounds gep is used, as null isn't within any object. 1522894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *GEPIdx = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1); 1523894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *GEP = getGetElementPtr( 152419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx); 1525894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getPtrToInt(GEP, 1526894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Type::getInt64Ty(Ty->getContext())); 1527894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1528894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 152919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getAlignOf(Type* Ty) { 1530894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // alignof is implemented as: (i64) gep ({i1,Ty}*)null, 0, 1 1531894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Note that a non-inbounds gep is used, as null isn't within any object. 153219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *AligningTy = 153319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman StructType::get(Type::getInt1Ty(Ty->getContext()), Ty, NULL); 1534894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *NullPtr = Constant::getNullValue(AligningTy->getPointerTo()); 1535894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Zero = ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0); 1536894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *One = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1); 1537894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Indices[2] = { Zero, One }; 153819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *GEP = getGetElementPtr(NullPtr, Indices); 1539894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getPtrToInt(GEP, 1540894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Type::getInt64Ty(Ty->getContext())); 1541894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1542894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 154319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getOffsetOf(StructType* STy, unsigned FieldNo) { 1544894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getOffsetOf(STy, ConstantInt::get(Type::getInt32Ty(STy->getContext()), 1545894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman FieldNo)); 1546894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1547894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 154819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getOffsetOf(Type* Ty, Constant *FieldNo) { 1549894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // offsetof is implemented as: (i64) gep (Ty*)null, 0, FieldNo 1550894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Note that a non-inbounds gep is used, as null isn't within any object. 1551894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *GEPIdx[] = { 1552894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0), 1553894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman FieldNo 1554894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman }; 1555894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *GEP = getGetElementPtr( 155619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant::getNullValue(PointerType::getUnqual(Ty)), GEPIdx); 1557894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return getPtrToInt(GEP, 1558894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Type::getInt64Ty(Ty->getContext())); 1559894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1560894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 156119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getCompare(unsigned short Predicate, 156219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *C1, Constant *C2) { 1563894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C1->getType() == C2->getType() && "Op types should be identical!"); 156419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 156519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman switch (Predicate) { 156619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman default: llvm_unreachable("Invalid CmpInst predicate"); 156719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_FALSE: case CmpInst::FCMP_OEQ: case CmpInst::FCMP_OGT: 156819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_OGE: case CmpInst::FCMP_OLT: case CmpInst::FCMP_OLE: 156919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_ONE: case CmpInst::FCMP_ORD: case CmpInst::FCMP_UNO: 157019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_UEQ: case CmpInst::FCMP_UGT: case CmpInst::FCMP_UGE: 157119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_ULT: case CmpInst::FCMP_ULE: case CmpInst::FCMP_UNE: 157219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::FCMP_TRUE: 157319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getFCmp(Predicate, C1, C2); 157419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 157519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::ICMP_EQ: case CmpInst::ICMP_NE: case CmpInst::ICMP_UGT: 157619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::ICMP_UGE: case CmpInst::ICMP_ULT: case CmpInst::ICMP_ULE: 157719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::ICMP_SGT: case CmpInst::ICMP_SGE: case CmpInst::ICMP_SLT: 157819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case CmpInst::ICMP_SLE: 157919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getICmp(Predicate, C1, C2); 158019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 1581894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1582894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 158319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSelect(Constant *C, Constant *V1, Constant *V2) { 1584894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(!SelectInst::areInvalidOperands(C, V1, V2)&&"Invalid select operands"); 1585894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 158619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *SC = ConstantFoldSelectInstruction(C, V1, V2)) 158719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return SC; // Fold common cases 1588894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1589894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> argVec(3, C); 1590894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman argVec[1] = V1; 1591894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman argVec[2] = V2; 1592894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ExprMapKeyType Key(Instruction::Select, argVec); 1593894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 159419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = C->getContext().pImpl; 159519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->ExprConstants.getOrCreate(V1->getType(), Key); 1596894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1597894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 159819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getGetElementPtr(Constant *C, ArrayRef<Value *> Idxs, 159919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool InBounds) { 160019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *FC = ConstantFoldGetElementPtr(C, InBounds, Idxs)) 160119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FC; // Fold a few common cases. 1602894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 160319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Get the result type of the getelementptr! 160419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *Ty = GetElementPtrInst::getIndexedType(C->getType(), Idxs); 160519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Ty && "GEP indices invalid!"); 160619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned AS = cast<PointerType>(C->getType())->getAddressSpace(); 160719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ReqTy = Ty->getPointerTo(AS); 160819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1609894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isPointerTy() && 1610894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Non-pointer type for constant GetElementPtr expression"); 1611894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 1612894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> ArgVec; 161319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgVec.reserve(1 + Idxs.size()); 1614894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(C); 161519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman for (unsigned i = 0, e = Idxs.size(); i != e; ++i) 1616894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(cast<Constant>(Idxs[i])); 1617894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const ExprMapKeyType Key(Instruction::GetElementPtr, ArgVec, 0, 161819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman InBounds ? GEPOperator::IsInBounds : 0); 161919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 162019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = C->getContext().pImpl; 1621894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ExprConstants.getOrCreate(ReqTy, Key); 1622894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1623894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1624894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant * 1625894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstantExpr::getICmp(unsigned short pred, Constant *LHS, Constant *RHS) { 1626894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(LHS->getType() == RHS->getType()); 1627894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(pred >= ICmpInst::FIRST_ICMP_PREDICATE && 1628894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman pred <= ICmpInst::LAST_ICMP_PREDICATE && "Invalid ICmp Predicate"); 1629894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1630894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Constant *FC = ConstantFoldCompareInstruction(pred, LHS, RHS)) 1631894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return FC; // Fold a few common cases... 1632894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1633894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 1634894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> ArgVec; 1635894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(LHS); 1636894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(RHS); 1637894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Get the key type with both the opcode and predicate 1638894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const ExprMapKeyType Key(Instruction::ICmp, ArgVec, pred); 1639894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 164019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ResultTy = Type::getInt1Ty(LHS->getContext()); 164119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VT = dyn_cast<VectorType>(LHS->getType())) 1642894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ResultTy = VectorType::get(ResultTy, VT->getNumElements()); 1643894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1644894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = LHS->getType()->getContext().pImpl; 1645894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ExprConstants.getOrCreate(ResultTy, Key); 1646894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1647894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1648894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant * 1649894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstantExpr::getFCmp(unsigned short pred, Constant *LHS, Constant *RHS) { 1650894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(LHS->getType() == RHS->getType()); 1651894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(pred <= FCmpInst::LAST_FCMP_PREDICATE && "Invalid FCmp Predicate"); 1652894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1653894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Constant *FC = ConstantFoldCompareInstruction(pred, LHS, RHS)) 1654894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return FC; // Fold a few common cases... 1655894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1656894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 1657894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> ArgVec; 1658894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(LHS); 1659894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(RHS); 1660894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Get the key type with both the opcode and predicate 1661894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman const ExprMapKeyType Key(Instruction::FCmp, ArgVec, pred); 1662894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 166319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ResultTy = Type::getInt1Ty(LHS->getContext()); 166419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (VectorType *VT = dyn_cast<VectorType>(LHS->getType())) 1665894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ResultTy = VectorType::get(ResultTy, VT->getNumElements()); 1666894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1667894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl *pImpl = LHS->getType()->getContext().pImpl; 1668894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ExprConstants.getOrCreate(ResultTy, Key); 1669894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1670894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1671894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr::getExtractElement(Constant *Val, Constant *Idx) { 1672894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Val->getType()->isVectorTy() && 1673894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create extractelement operation on non-vector type!"); 1674894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Idx->getType()->isIntegerTy(32) && 1675894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Extractelement index must be i32 type!"); 167619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 167719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *FC = ConstantFoldExtractElementInstruction(Val, Idx)) 1678894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return FC; // Fold a few common cases. 167919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1680894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 1681894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> ArgVec(1, Val); 1682894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ArgVec.push_back(Idx); 168319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const ExprMapKeyType Key(Instruction::ExtractElement,ArgVec); 1684894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 168519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = Val->getContext().pImpl; 168619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ReqTy = cast<VectorType>(Val->getType())->getElementType(); 1687894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return pImpl->ExprConstants.getOrCreate(ReqTy, Key); 1688894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1689894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1690894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr::getInsertElement(Constant *Val, Constant *Elt, 1691894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Idx) { 1692894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Val->getType()->isVectorTy() && 1693894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create insertelement operation on non-vector type!"); 1694894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Elt->getType() == cast<VectorType>(Val->getType())->getElementType() 1695894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman && "Insertelement types must match!"); 1696894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Idx->getType()->isIntegerTy(32) && 1697894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Insertelement index must be i32 type!"); 1698894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 169919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *FC = ConstantFoldInsertElementInstruction(Val, Elt, Idx)) 170019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FC; // Fold a few common cases. 1701894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Look up the constant in the table first to ensure uniqueness 170219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::vector<Constant*> ArgVec(1, Val); 170319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgVec.push_back(Elt); 170419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgVec.push_back(Idx); 170519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const ExprMapKeyType Key(Instruction::InsertElement,ArgVec); 1706894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 170719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = Val->getContext().pImpl; 170819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->ExprConstants.getOrCreate(Val->getType(), Key); 1709894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1710894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1711894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr::getShuffleVector(Constant *V1, Constant *V2, 1712894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Mask) { 1713894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(ShuffleVectorInst::isValidOperands(V1, V2, Mask) && 1714894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Invalid shuffle vector constant expr operands!"); 1715894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 171619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Constant *FC = ConstantFoldShuffleVectorInstruction(V1, V2, Mask)) 171719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FC; // Fold a few common cases. 171819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1719894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned NElts = cast<VectorType>(Mask->getType())->getNumElements(); 172019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *EltTy = cast<VectorType>(V1->getType())->getElementType(); 172119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ShufTy = VectorType::get(EltTy, NElts); 1722894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 172319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Look up the constant in the table first to ensure uniqueness 172419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::vector<Constant*> ArgVec(1, V1); 172519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgVec.push_back(V2); 172619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArgVec.push_back(Mask); 172719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const ExprMapKeyType Key(Instruction::ShuffleVector,ArgVec); 172819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 172919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = ShufTy->getContext().pImpl; 173019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return pImpl->ExprConstants.getOrCreate(ShufTy, Key); 1731894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1732894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1733894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr::getInsertValue(Constant *Agg, Constant *Val, 173419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArrayRef<unsigned> Idxs) { 173519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(ExtractValueInst::getIndexedType(Agg->getType(), 173619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Idxs) == Val->getType() && 173719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "insertvalue indices invalid!"); 1738894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Agg->getType()->isFirstClassType() && 173919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "Non-first-class type for constant insertvalue expression"); 174019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *FC = ConstantFoldInsertValueInstruction(Agg, Val, Idxs); 174119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(FC && "insertvalue constant expr couldn't be folded!"); 1742894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return FC; 1743894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1744894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1745894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanConstant *ConstantExpr::getExtractValue(Constant *Agg, 174619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArrayRef<unsigned> Idxs) { 1747894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Agg->getType()->isFirstClassType() && 1748894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Tried to create extractelement operation on non-first-class type!"); 1749894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 175019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *ReqTy = ExtractValueInst::getIndexedType(Agg->getType(), Idxs); 175119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (void)ReqTy; 1752894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(ReqTy && "extractvalue indices invalid!"); 175319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 175419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(Agg->getType()->isFirstClassType() && 175519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "Non-first-class type for constant extractvalue expression"); 175619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *FC = ConstantFoldExtractValueInstruction(Agg, Idxs); 175719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(FC && "ExtractValue constant expr couldn't be folded!"); 175819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return FC; 1759894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1760894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 176119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getNeg(Constant *C, bool HasNUW, bool HasNSW) { 1762894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && 1763894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Cannot NEG a nonintegral value!"); 176419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getSub(ConstantFP::getZeroValueForNegation(C->getType()), 176519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman C, HasNUW, HasNSW); 1766894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1767894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 176819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFNeg(Constant *C) { 1769894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isFPOrFPVectorTy() && 1770894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Cannot FNEG a non-floating-point value!"); 177119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return getFSub(ConstantFP::getZeroValueForNegation(C->getType()), C); 1772894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1773894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 177419bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getNot(Constant *C) { 1775894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(C->getType()->isIntOrIntVectorTy() && 1776894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "Cannot NOT a nonintegral value!"); 1777894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::Xor, C, Constant::getAllOnesValue(C->getType())); 1778894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1779894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 178019bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getAdd(Constant *C1, Constant *C2, 178119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool HasNUW, bool HasNSW) { 178219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) | 178319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0); 178419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::Add, C1, C2, Flags); 1785894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1786894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 178719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFAdd(Constant *C1, Constant *C2) { 1788894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::FAdd, C1, C2); 1789894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1790894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 179119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSub(Constant *C1, Constant *C2, 179219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool HasNUW, bool HasNSW) { 179319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) | 179419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0); 179519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::Sub, C1, C2, Flags); 1796894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1797894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 179819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFSub(Constant *C1, Constant *C2) { 1799894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::FSub, C1, C2); 1800894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1801894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 180219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getMul(Constant *C1, Constant *C2, 180319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool HasNUW, bool HasNSW) { 180419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) | 180519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0); 180619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::Mul, C1, C2, Flags); 1807894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1808894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 180919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFMul(Constant *C1, Constant *C2) { 1810894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::FMul, C1, C2); 1811894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1812894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 181319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getUDiv(Constant *C1, Constant *C2, bool isExact) { 181419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::UDiv, C1, C2, 181519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman isExact ? PossiblyExactOperator::IsExact : 0); 1816894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1817894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 181819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSDiv(Constant *C1, Constant *C2, bool isExact) { 181919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::SDiv, C1, C2, 182019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman isExact ? PossiblyExactOperator::IsExact : 0); 1821894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1822894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 182319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFDiv(Constant *C1, Constant *C2) { 1824894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::FDiv, C1, C2); 1825894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1826894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 182719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getURem(Constant *C1, Constant *C2) { 1828894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::URem, C1, C2); 1829894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1830894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 183119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getSRem(Constant *C1, Constant *C2) { 1832894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::SRem, C1, C2); 1833894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1834894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 183519bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getFRem(Constant *C1, Constant *C2) { 1836894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::FRem, C1, C2); 1837894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1838894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 183919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getAnd(Constant *C1, Constant *C2) { 1840894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::And, C1, C2); 1841894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1842894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 184319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getOr(Constant *C1, Constant *C2) { 1844894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::Or, C1, C2); 1845894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1846894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 184719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getXor(Constant *C1, Constant *C2) { 1848894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return get(Instruction::Xor, C1, C2); 1849894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1850894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 185119bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getShl(Constant *C1, Constant *C2, 185219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool HasNUW, bool HasNSW) { 185319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned Flags = (HasNUW ? OverflowingBinaryOperator::NoUnsignedWrap : 0) | 185419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (HasNSW ? OverflowingBinaryOperator::NoSignedWrap : 0); 185519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::Shl, C1, C2, Flags); 1856894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1857894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 185819bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getLShr(Constant *C1, Constant *C2, bool isExact) { 185919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::LShr, C1, C2, 186019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman isExact ? PossiblyExactOperator::IsExact : 0); 1861894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1862894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 186319bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanConstant *ConstantExpr::getAShr(Constant *C1, Constant *C2, bool isExact) { 186419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return get(Instruction::AShr, C1, C2, 186519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman isExact ? PossiblyExactOperator::IsExact : 0); 1866894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1867894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1868894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// destroyConstant - Remove the constant from the constant table... 1869894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// 1870894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantExpr::destroyConstant() { 187119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman getType()->getContext().pImpl->ExprConstants.remove(this); 1872894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstantImpl(); 1873894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1874894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1875894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanconst char *ConstantExpr::getOpcodeName() const { 1876894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return Instruction::getOpcodeName(getOpcode()); 1877894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1878894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1879894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1880894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1881894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanGetElementPtrConstantExpr:: 1882894018228b0e0bdbd7aa7e8f47d4a9458789ca82John BaumanGetElementPtrConstantExpr(Constant *C, const std::vector<Constant*> &IdxList, 188319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *DestTy) 1884894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman : ConstantExpr(DestTy, Instruction::GetElementPtr, 1885894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandTraits<GetElementPtrConstantExpr>::op_end(this) 1886894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman - (IdxList.size()+1), IdxList.size()+1) { 1887894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandList[0] = C; 1888894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, E = IdxList.size(); i != E; ++i) 1889894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman OperandList[i+1] = IdxList[i]; 1890894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1891894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1892894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1893894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman//===----------------------------------------------------------------------===// 1894894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman// replaceUsesOfWithOnConstant implementations 1895894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1896894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// replaceUsesOfWithOnConstant - Update this constant array to change uses of 1897894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 'From' to be uses of 'To'. This must update the uniquing data structures 1898894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// etc. 1899894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 1900894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// Note that we intentionally replace all uses of From with To here. Consider 1901894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// a large array that uses 'From' 1000 times. By handling this case all here, 1902894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// ConstantArray::replaceUsesOfWithOnConstant is only invoked once, and that 1903894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// single invocation handles all 1000 uses. Handling them one at a time would 1904894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// work, but would be really slow because it would have to unique each updated 1905894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// array instance. 1906894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman/// 1907894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantArray::replaceUsesOfWithOnConstant(Value *From, Value *To, 1908894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Use *U) { 1909894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(isa<Constant>(To) && "Cannot make Constant refer to non-constant!"); 1910894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *ToC = cast<Constant>(To); 1911894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 191219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = getType()->getContext().pImpl; 1913894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1914894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::pair<LLVMContextImpl::ArrayConstantsTy::MapKey, ConstantArray*> Lookup; 191519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Lookup.first.first = cast<ArrayType>(getType()); 1916894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Lookup.second = this; 1917894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1918894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> &Values = Lookup.first.second; 1919894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.reserve(getNumOperands()); // Build replacement array. 1920894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1921894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Fill values with the modified operands of the constant array. Also, 1922894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // compute whether this turns into an all-zeros array. 1923894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isAllZeros = false; 1924894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned NumUpdated = 0; 1925894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!ToC->isNullValue()) { 1926894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (Use *O = OperandList, *E = OperandList+getNumOperands(); O != E; ++O) { 1927894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = cast<Constant>(O->get()); 1928894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Val == From) { 1929894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Val = ToC; 1930894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ++NumUpdated; 1931894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1932894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.push_back(Val); 1933894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1934894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 1935894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isAllZeros = true; 1936894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (Use *O = OperandList, *E = OperandList+getNumOperands();O != E; ++O) { 1937894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = cast<Constant>(O->get()); 1938894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Val == From) { 1939894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Val = ToC; 1940894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman ++NumUpdated; 1941894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1942894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.push_back(Val); 1943894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isAllZeros) isAllZeros = Val->isNullValue(); 1944894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1945894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1946894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1947894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Replacement = 0; 1948894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isAllZeros) { 194919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantAggregateZero::get(getType()); 1950894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 1951894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check to see if we have this array type already. 1952894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool Exists; 1953894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl::ArrayConstantsTy::MapTy::iterator I = 1954894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman pImpl->ArrayConstants.InsertOrGetItem(Lookup, Exists); 1955894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1956894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Exists) { 1957894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = I->second; 1958894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 1959894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Okay, the new shape doesn't exist in the system yet. Instead of 1960894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // creating a new constant array, inserting it, replaceallusesof'ing the 1961894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // old with the new, then deleting the old... just update the current one 1962894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // in place! 1963894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman pImpl->ArrayConstants.MoveConstantToNewSlot(this, I); 1964894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1965894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Update to the new value. Optimize for the case when we have a single 1966894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // operand that we're changing, but handle bulk updates efficiently. 1967894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (NumUpdated == 1) { 1968894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned OperandToUpdate = U - OperandList; 1969894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getOperand(OperandToUpdate) == From && 1970894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman "ReplaceAllUsesWith broken!"); 1971894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(OperandToUpdate, ToC); 1972894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 1973894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) 1974894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOperand(i) == From) 1975894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(i, ToC); 1976894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1977894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 1978894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1979894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 1980894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1981894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Otherwise, I do need to replace this with an existing value. 1982894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Replacement != this && "I didn't contain From!"); 1983894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1984894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Everyone using this now uses the replacement. 198519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman replaceAllUsesWith(Replacement); 1986894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1987894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Delete the old constant! 1988894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstant(); 1989894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 1990894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1991894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantStruct::replaceUsesOfWithOnConstant(Value *From, Value *To, 1992894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Use *U) { 1993894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(isa<Constant>(To) && "Cannot make Constant refer to non-constant!"); 1994894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *ToC = cast<Constant>(To); 1995894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1996894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman unsigned OperandToUpdate = U-OperandList; 1997894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getOperand(OperandToUpdate) == From && "ReplaceAllUsesWith broken!"); 1998894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 1999894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::pair<LLVMContextImpl::StructConstantsTy::MapKey, ConstantStruct*> Lookup; 200019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Lookup.first.first = cast<StructType>(getType()); 2001894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Lookup.second = this; 2002894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> &Values = Lookup.first.second; 2003894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.reserve(getNumOperands()); // Build replacement struct. 2004894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2005894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2006894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Fill values with the modified operands of the constant struct. Also, 2007894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // compute whether this turns into an all-zeros struct. 2008894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool isAllZeros = false; 2009894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (!ToC->isNullValue()) { 2010894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (Use *O = OperandList, *E = OperandList + getNumOperands(); O != E; ++O) 2011894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.push_back(cast<Constant>(O->get())); 2012894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 2013894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman isAllZeros = true; 2014894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (Use *O = OperandList, *E = OperandList+getNumOperands(); O != E; ++O) { 2015894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = cast<Constant>(O->get()); 2016894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.push_back(Val); 2017894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isAllZeros) isAllZeros = Val->isNullValue(); 2018894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2019894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2020894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values[OperandToUpdate] = ToC; 2021894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 202219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman LLVMContextImpl *pImpl = getContext().pImpl; 2023894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2024894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Replacement = 0; 2025894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (isAllZeros) { 202619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantAggregateZero::get(getType()); 2027894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 2028894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Check to see if we have this struct type already. 2029894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman bool Exists; 2030894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman LLVMContextImpl::StructConstantsTy::MapTy::iterator I = 2031894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman pImpl->StructConstants.InsertOrGetItem(Lookup, Exists); 2032894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2033894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Exists) { 2034894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = I->second; 2035894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 2036894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Okay, the new shape doesn't exist in the system yet. Instead of 2037894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // creating a new constant struct, inserting it, replaceallusesof'ing the 2038894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // old with the new, then deleting the old... just update the current one 2039894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // in place! 2040894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman pImpl->StructConstants.MoveConstantToNewSlot(this, I); 2041894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2042894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Update to the new value. 2043894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman setOperand(OperandToUpdate, ToC); 2044894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 2045894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2046894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2047894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2048894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Replacement != this && "I didn't contain From!"); 2049894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2050894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Everyone using this now uses the replacement. 205119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman replaceAllUsesWith(Replacement); 2052894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2053894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Delete the old constant! 2054894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstant(); 2055894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 2056894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2057894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantVector::replaceUsesOfWithOnConstant(Value *From, Value *To, 2058894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Use *U) { 2059894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(isa<Constant>(To) && "Cannot make Constant refer to non-constant!"); 2060894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2061894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman std::vector<Constant*> Values; 2062894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.reserve(getNumOperands()); // Build replacement array... 2063894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { 2064894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = getOperand(i); 2065894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Val == From) Val = cast<Constant>(To); 2066894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Values.push_back(Val); 2067894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2068894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 206919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Constant *Replacement = get(Values); 2070894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Replacement != this && "I didn't contain From!"); 2071894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2072894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Everyone using this now uses the replacement. 207319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman replaceAllUsesWith(Replacement); 2074894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2075894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Delete the old constant! 2076894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstant(); 2077894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 2078894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2079894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Baumanvoid ConstantExpr::replaceUsesOfWithOnConstant(Value *From, Value *ToV, 2080894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Use *U) { 2081894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(isa<Constant>(ToV) && "Cannot make Constant refer to non-constant!"); 2082894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *To = cast<Constant>(ToV); 2083894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2084894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Replacement = 0; 2085894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOpcode() == Instruction::GetElementPtr) { 2086894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman SmallVector<Constant*, 8> Indices; 2087894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Pointer = getOperand(0); 2088894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Indices.reserve(getNumOperands()-1); 2089894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Pointer == From) Pointer = To; 2090894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2091894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman for (unsigned i = 1, e = getNumOperands(); i != e; ++i) { 2092894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = getOperand(i); 2093894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Val == From) Val = To; 2094894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Indices.push_back(Val); 2095894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 209619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantExpr::getGetElementPtr(Pointer, Indices, 209719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman cast<GEPOperator>(this)->isInBounds()); 2098894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::ExtractValue) { 2099894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Agg = getOperand(0); 2100894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Agg == From) Agg = To; 2101894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 210219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArrayRef<unsigned> Indices = getIndices(); 210319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantExpr::getExtractValue(Agg, Indices); 2104894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::InsertValue) { 2105894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Agg = getOperand(0); 2106894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *Val = getOperand(1); 2107894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Agg == From) Agg = To; 2108894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (Val == From) Val = To; 2109894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 211019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman ArrayRef<unsigned> Indices = getIndices(); 211119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantExpr::getInsertValue(Agg, Val, Indices); 2112894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (isCast()) { 2113894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getOperand(0) == From && "Cast only has one use!"); 211419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Replacement = ConstantExpr::getCast(getOpcode(), To, getType()); 2115894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::Select) { 2116894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2117894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2118894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C3 = getOperand(2); 2119894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2120894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2121894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C3 == From) C3 = To; 2122894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getSelect(C1, C2, C3); 2123894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::ExtractElement) { 2124894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2125894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2126894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2127894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2128894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getExtractElement(C1, C2); 2129894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::InsertElement) { 2130894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2131894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2132894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C3 = getOperand(1); 2133894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2134894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2135894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C3 == From) C3 = To; 2136894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getInsertElement(C1, C2, C3); 2137894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getOpcode() == Instruction::ShuffleVector) { 2138894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2139894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2140894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C3 = getOperand(2); 2141894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2142894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2143894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C3 == From) C3 = To; 2144894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getShuffleVector(C1, C2, C3); 2145894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (isCompare()) { 2146894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2147894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2148894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2149894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2150894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (getOpcode() == Instruction::ICmp) 2151894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getICmp(getPredicate(), C1, C2); 2152894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman else { 2153894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(getOpcode() == Instruction::FCmp); 2154894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::getFCmp(getPredicate(), C1, C2); 2155894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2156894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else if (getNumOperands() == 2) { 2157894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C1 = getOperand(0); 2158894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Constant *C2 = getOperand(1); 2159894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C1 == From) C1 = To; 2160894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman if (C2 == From) C2 = To; 2161894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman Replacement = ConstantExpr::get(getOpcode(), C1, C2, SubclassOptionalData); 2162894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } else { 2163894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman llvm_unreachable("Unknown ConstantExpr type!"); 2164894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman return; 2165894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman } 2166894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2167894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman assert(Replacement != this && "I didn't contain From!"); 2168894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2169894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Everyone using this now uses the replacement. 217019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman replaceAllUsesWith(Replacement); 2171894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman 2172894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman // Delete the old constant! 2173894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman destroyConstant(); 2174894018228b0e0bdbd7aa7e8f47d4a9458789ca82John Bauman} 2175