/usr/include/llvm-6.0/llvm/IR/NoFolder.h is in llvm-6.0-dev 1:6.0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | //===- NoFolder.h - Constant folding helper ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the NoFolder class, a helper for IRBuilder. It provides
// IRBuilder with a set of methods for creating unfolded constants. This is
// useful for learners trying to understand how LLVM IR works, and who don't
// want details to be hidden by the constant folder. For general constant
// creation and folding, use ConstantExpr and the routines in
// llvm/Analysis/ConstantFolding.h.
//
// Note: since it is not actually possible to create unfolded constants, this
// class returns instructions rather than constants.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_NOFOLDER_H
#define LLVM_IR_NOFOLDER_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
namespace llvm {
/// NoFolder - Create "constants" (actually, instructions) with no folding.
class NoFolder {
public:
explicit NoFolder() = default;
//===--------------------------------------------------------------------===//
// Binary Operators
//===--------------------------------------------------------------------===//
Instruction *CreateAdd(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const {
BinaryOperator *BO = BinaryOperator::CreateAdd(LHS, RHS);
if (HasNUW) BO->setHasNoUnsignedWrap();
if (HasNSW) BO->setHasNoSignedWrap();
return BO;
}
Instruction *CreateNSWAdd(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNSWAdd(LHS, RHS);
}
Instruction *CreateNUWAdd(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNUWAdd(LHS, RHS);
}
Instruction *CreateFAdd(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateFAdd(LHS, RHS);
}
Instruction *CreateSub(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const {
BinaryOperator *BO = BinaryOperator::CreateSub(LHS, RHS);
if (HasNUW) BO->setHasNoUnsignedWrap();
if (HasNSW) BO->setHasNoSignedWrap();
return BO;
}
Instruction *CreateNSWSub(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNSWSub(LHS, RHS);
}
Instruction *CreateNUWSub(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNUWSub(LHS, RHS);
}
Instruction *CreateFSub(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateFSub(LHS, RHS);
}
Instruction *CreateMul(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const {
BinaryOperator *BO = BinaryOperator::CreateMul(LHS, RHS);
if (HasNUW) BO->setHasNoUnsignedWrap();
if (HasNSW) BO->setHasNoSignedWrap();
return BO;
}
Instruction *CreateNSWMul(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNSWMul(LHS, RHS);
}
Instruction *CreateNUWMul(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateNUWMul(LHS, RHS);
}
Instruction *CreateFMul(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateFMul(LHS, RHS);
}
Instruction *CreateUDiv(Constant *LHS, Constant *RHS,
bool isExact = false) const {
if (!isExact)
return BinaryOperator::CreateUDiv(LHS, RHS);
return BinaryOperator::CreateExactUDiv(LHS, RHS);
}
Instruction *CreateExactUDiv(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateExactUDiv(LHS, RHS);
}
Instruction *CreateSDiv(Constant *LHS, Constant *RHS,
bool isExact = false) const {
if (!isExact)
return BinaryOperator::CreateSDiv(LHS, RHS);
return BinaryOperator::CreateExactSDiv(LHS, RHS);
}
Instruction *CreateExactSDiv(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateExactSDiv(LHS, RHS);
}
Instruction *CreateFDiv(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateFDiv(LHS, RHS);
}
Instruction *CreateURem(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateURem(LHS, RHS);
}
Instruction *CreateSRem(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateSRem(LHS, RHS);
}
Instruction *CreateFRem(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateFRem(LHS, RHS);
}
Instruction *CreateShl(Constant *LHS, Constant *RHS, bool HasNUW = false,
bool HasNSW = false) const {
BinaryOperator *BO = BinaryOperator::CreateShl(LHS, RHS);
if (HasNUW) BO->setHasNoUnsignedWrap();
if (HasNSW) BO->setHasNoSignedWrap();
return BO;
}
Instruction *CreateLShr(Constant *LHS, Constant *RHS,
bool isExact = false) const {
if (!isExact)
return BinaryOperator::CreateLShr(LHS, RHS);
return BinaryOperator::CreateExactLShr(LHS, RHS);
}
Instruction *CreateAShr(Constant *LHS, Constant *RHS,
bool isExact = false) const {
if (!isExact)
return BinaryOperator::CreateAShr(LHS, RHS);
return BinaryOperator::CreateExactAShr(LHS, RHS);
}
Instruction *CreateAnd(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateAnd(LHS, RHS);
}
Instruction *CreateOr(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateOr(LHS, RHS);
}
Instruction *CreateXor(Constant *LHS, Constant *RHS) const {
return BinaryOperator::CreateXor(LHS, RHS);
}
Instruction *CreateBinOp(Instruction::BinaryOps Opc,
Constant *LHS, Constant *RHS) const {
return BinaryOperator::Create(Opc, LHS, RHS);
}
//===--------------------------------------------------------------------===//
// Unary Operators
//===--------------------------------------------------------------------===//
Instruction *CreateNeg(Constant *C,
bool HasNUW = false, bool HasNSW = false) const {
BinaryOperator *BO = BinaryOperator::CreateNeg(C);
if (HasNUW) BO->setHasNoUnsignedWrap();
if (HasNSW) BO->setHasNoSignedWrap();
return BO;
}
Instruction *CreateNSWNeg(Constant *C) const {
return BinaryOperator::CreateNSWNeg(C);
}
Instruction *CreateNUWNeg(Constant *C) const {
return BinaryOperator::CreateNUWNeg(C);
}
Instruction *CreateFNeg(Constant *C) const {
return BinaryOperator::CreateFNeg(C);
}
Instruction *CreateNot(Constant *C) const {
return BinaryOperator::CreateNot(C);
}
//===--------------------------------------------------------------------===//
// Memory Instructions
//===--------------------------------------------------------------------===//
Constant *CreateGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Constant *> IdxList) const {
return ConstantExpr::getGetElementPtr(Ty, C, IdxList);
}
Constant *CreateGetElementPtr(Type *Ty, Constant *C, Constant *Idx) const {
// This form of the function only exists to avoid ambiguous overload
// warnings about whether to convert Idx to ArrayRef<Constant *> or
// ArrayRef<Value *>.
return ConstantExpr::getGetElementPtr(Ty, C, Idx);
}
Instruction *CreateGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Value *> IdxList) const {
return GetElementPtrInst::Create(Ty, C, IdxList);
}
Constant *CreateInBoundsGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Constant *> IdxList) const {
return ConstantExpr::getInBoundsGetElementPtr(Ty, C, IdxList);
}
Constant *CreateInBoundsGetElementPtr(Type *Ty, Constant *C,
Constant *Idx) const {
// This form of the function only exists to avoid ambiguous overload
// warnings about whether to convert Idx to ArrayRef<Constant *> or
// ArrayRef<Value *>.
return ConstantExpr::getInBoundsGetElementPtr(Ty, C, Idx);
}
Instruction *CreateInBoundsGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Value *> IdxList) const {
return GetElementPtrInst::CreateInBounds(Ty, C, IdxList);
}
//===--------------------------------------------------------------------===//
// Cast/Conversion Operators
//===--------------------------------------------------------------------===//
Instruction *CreateCast(Instruction::CastOps Op, Constant *C,
Type *DestTy) const {
return CastInst::Create(Op, C, DestTy);
}
Instruction *CreatePointerCast(Constant *C, Type *DestTy) const {
return CastInst::CreatePointerCast(C, DestTy);
}
Instruction *CreateIntCast(Constant *C, Type *DestTy,
bool isSigned) const {
return CastInst::CreateIntegerCast(C, DestTy, isSigned);
}
Instruction *CreateFPCast(Constant *C, Type *DestTy) const {
return CastInst::CreateFPCast(C, DestTy);
}
Instruction *CreateBitCast(Constant *C, Type *DestTy) const {
return CreateCast(Instruction::BitCast, C, DestTy);
}
Instruction *CreateIntToPtr(Constant *C, Type *DestTy) const {
return CreateCast(Instruction::IntToPtr, C, DestTy);
}
Instruction *CreatePtrToInt(Constant *C, Type *DestTy) const {
return CreateCast(Instruction::PtrToInt, C, DestTy);
}
Instruction *CreateZExtOrBitCast(Constant *C, Type *DestTy) const {
return CastInst::CreateZExtOrBitCast(C, DestTy);
}
Instruction *CreateSExtOrBitCast(Constant *C, Type *DestTy) const {
return CastInst::CreateSExtOrBitCast(C, DestTy);
}
Instruction *CreateTruncOrBitCast(Constant *C, Type *DestTy) const {
return CastInst::CreateTruncOrBitCast(C, DestTy);
}
//===--------------------------------------------------------------------===//
// Compare Instructions
//===--------------------------------------------------------------------===//
Instruction *CreateICmp(CmpInst::Predicate P,
Constant *LHS, Constant *RHS) const {
return new ICmpInst(P, LHS, RHS);
}
Instruction *CreateFCmp(CmpInst::Predicate P,
Constant *LHS, Constant *RHS) const {
return new FCmpInst(P, LHS, RHS);
}
//===--------------------------------------------------------------------===//
// Other Instructions
//===--------------------------------------------------------------------===//
Instruction *CreateSelect(Constant *C,
Constant *True, Constant *False) const {
return SelectInst::Create(C, True, False);
}
Instruction *CreateExtractElement(Constant *Vec, Constant *Idx) const {
return ExtractElementInst::Create(Vec, Idx);
}
Instruction *CreateInsertElement(Constant *Vec, Constant *NewElt,
Constant *Idx) const {
return InsertElementInst::Create(Vec, NewElt, Idx);
}
Instruction *CreateShuffleVector(Constant *V1, Constant *V2,
Constant *Mask) const {
return new ShuffleVectorInst(V1, V2, Mask);
}
Instruction *CreateExtractValue(Constant *Agg,
ArrayRef<unsigned> IdxList) const {
return ExtractValueInst::Create(Agg, IdxList);
}
Instruction *CreateInsertValue(Constant *Agg, Constant *Val,
ArrayRef<unsigned> IdxList) const {
return InsertValueInst::Create(Agg, Val, IdxList);
}
};
} // end namespace llvm
#endif // LLVM_IR_NOFOLDER_H
|