TargetTransformInfo.cpp 12 KB

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  1. //===- llvm/Analysis/TargetTransformInfo.cpp ------------------------------===//
  2. //
  3. // The LLVM Compiler Infrastructure
  4. //
  5. // This file is distributed under the University of Illinois Open Source
  6. // License. See LICENSE.TXT for details.
  7. //
  8. //===----------------------------------------------------------------------===//
  9. #include "llvm/Analysis/TargetTransformInfo.h"
  10. #include "llvm/Analysis/TargetTransformInfoImpl.h"
  11. #include "llvm/IR/CallSite.h"
  12. #include "llvm/IR/DataLayout.h"
  13. #include "llvm/IR/Instruction.h"
  14. #include "llvm/IR/Instructions.h"
  15. #include "llvm/IR/IntrinsicInst.h"
  16. #include "llvm/IR/Module.h"
  17. #include "llvm/IR/Operator.h"
  18. #include "llvm/Support/ErrorHandling.h"
  19. using namespace llvm;
  20. #define DEBUG_TYPE "tti"
  21. namespace {
  22. /// \brief No-op implementation of the TTI interface using the utility base
  23. /// classes.
  24. ///
  25. /// This is used when no target specific information is available.
  26. struct NoTTIImpl : TargetTransformInfoImplCRTPBase<NoTTIImpl> {
  27. explicit NoTTIImpl(const DataLayout &DL)
  28. : TargetTransformInfoImplCRTPBase<NoTTIImpl>(DL) {}
  29. };
  30. }
  31. TargetTransformInfo::TargetTransformInfo(const DataLayout &DL)
  32. : TTIImpl(new Model<NoTTIImpl>(NoTTIImpl(DL))) {}
  33. TargetTransformInfo::~TargetTransformInfo() {}
  34. TargetTransformInfo::TargetTransformInfo(TargetTransformInfo &&Arg)
  35. : TTIImpl(std::move(Arg.TTIImpl)) {}
  36. TargetTransformInfo &TargetTransformInfo::operator=(TargetTransformInfo &&RHS) {
  37. TTIImpl = std::move(RHS.TTIImpl);
  38. return *this;
  39. }
  40. unsigned TargetTransformInfo::getOperationCost(unsigned Opcode, Type *Ty,
  41. Type *OpTy) const {
  42. return TTIImpl->getOperationCost(Opcode, Ty, OpTy);
  43. }
  44. unsigned TargetTransformInfo::getCallCost(FunctionType *FTy,
  45. int NumArgs) const {
  46. return TTIImpl->getCallCost(FTy, NumArgs);
  47. }
  48. unsigned
  49. TargetTransformInfo::getCallCost(const Function *F,
  50. ArrayRef<const Value *> Arguments) const {
  51. return TTIImpl->getCallCost(F, Arguments);
  52. }
  53. unsigned
  54. TargetTransformInfo::getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
  55. ArrayRef<const Value *> Arguments) const {
  56. return TTIImpl->getIntrinsicCost(IID, RetTy, Arguments);
  57. }
  58. unsigned TargetTransformInfo::getUserCost(const User *U) const {
  59. return TTIImpl->getUserCost(U);
  60. }
  61. bool TargetTransformInfo::hasBranchDivergence() const {
  62. return TTIImpl->hasBranchDivergence();
  63. }
  64. bool TargetTransformInfo::isSourceOfDivergence(const Value *V) const {
  65. return TTIImpl->isSourceOfDivergence(V);
  66. }
  67. bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
  68. return TTIImpl->isLoweredToCall(F);
  69. }
  70. void TargetTransformInfo::getUnrollingPreferences(
  71. Loop *L, UnrollingPreferences &UP) const {
  72. return TTIImpl->getUnrollingPreferences(L, UP);
  73. }
  74. bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
  75. return TTIImpl->isLegalAddImmediate(Imm);
  76. }
  77. bool TargetTransformInfo::isLegalICmpImmediate(int64_t Imm) const {
  78. return TTIImpl->isLegalICmpImmediate(Imm);
  79. }
  80. bool TargetTransformInfo::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV,
  81. int64_t BaseOffset,
  82. bool HasBaseReg,
  83. int64_t Scale,
  84. unsigned AddrSpace) const {
  85. return TTIImpl->isLegalAddressingMode(Ty, BaseGV, BaseOffset, HasBaseReg,
  86. Scale, AddrSpace);
  87. }
  88. bool TargetTransformInfo::isLegalMaskedStore(Type *DataType,
  89. int Consecutive) const {
  90. return TTIImpl->isLegalMaskedStore(DataType, Consecutive);
  91. }
  92. bool TargetTransformInfo::isLegalMaskedLoad(Type *DataType,
  93. int Consecutive) const {
  94. return TTIImpl->isLegalMaskedLoad(DataType, Consecutive);
  95. }
  96. int TargetTransformInfo::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV,
  97. int64_t BaseOffset,
  98. bool HasBaseReg,
  99. int64_t Scale,
  100. unsigned AddrSpace) const {
  101. return TTIImpl->getScalingFactorCost(Ty, BaseGV, BaseOffset, HasBaseReg,
  102. Scale, AddrSpace);
  103. }
  104. bool TargetTransformInfo::isTruncateFree(Type *Ty1, Type *Ty2) const {
  105. return TTIImpl->isTruncateFree(Ty1, Ty2);
  106. }
  107. bool TargetTransformInfo::isProfitableToHoist(Instruction *I) const {
  108. return TTIImpl->isProfitableToHoist(I);
  109. }
  110. bool TargetTransformInfo::isTypeLegal(Type *Ty) const {
  111. return TTIImpl->isTypeLegal(Ty);
  112. }
  113. unsigned TargetTransformInfo::getJumpBufAlignment() const {
  114. return TTIImpl->getJumpBufAlignment();
  115. }
  116. unsigned TargetTransformInfo::getJumpBufSize() const {
  117. return TTIImpl->getJumpBufSize();
  118. }
  119. bool TargetTransformInfo::shouldBuildLookupTables() const {
  120. return TTIImpl->shouldBuildLookupTables();
  121. }
  122. bool TargetTransformInfo::enableAggressiveInterleaving(bool LoopHasReductions) const {
  123. return TTIImpl->enableAggressiveInterleaving(LoopHasReductions);
  124. }
  125. TargetTransformInfo::PopcntSupportKind
  126. TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
  127. return TTIImpl->getPopcntSupport(IntTyWidthInBit);
  128. }
  129. bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
  130. return TTIImpl->haveFastSqrt(Ty);
  131. }
  132. unsigned TargetTransformInfo::getFPOpCost(Type *Ty) const {
  133. return TTIImpl->getFPOpCost(Ty);
  134. }
  135. unsigned TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
  136. return TTIImpl->getIntImmCost(Imm, Ty);
  137. }
  138. unsigned TargetTransformInfo::getIntImmCost(unsigned Opcode, unsigned Idx,
  139. const APInt &Imm, Type *Ty) const {
  140. return TTIImpl->getIntImmCost(Opcode, Idx, Imm, Ty);
  141. }
  142. unsigned TargetTransformInfo::getIntImmCost(Intrinsic::ID IID, unsigned Idx,
  143. const APInt &Imm, Type *Ty) const {
  144. return TTIImpl->getIntImmCost(IID, Idx, Imm, Ty);
  145. }
  146. unsigned TargetTransformInfo::getNumberOfRegisters(bool Vector) const {
  147. return TTIImpl->getNumberOfRegisters(Vector);
  148. }
  149. unsigned TargetTransformInfo::getRegisterBitWidth(bool Vector) const {
  150. return TTIImpl->getRegisterBitWidth(Vector);
  151. }
  152. unsigned TargetTransformInfo::getMaxInterleaveFactor(unsigned VF) const {
  153. return TTIImpl->getMaxInterleaveFactor(VF);
  154. }
  155. unsigned TargetTransformInfo::getArithmeticInstrCost(
  156. unsigned Opcode, Type *Ty, OperandValueKind Opd1Info,
  157. OperandValueKind Opd2Info, OperandValueProperties Opd1PropInfo,
  158. OperandValueProperties Opd2PropInfo) const {
  159. return TTIImpl->getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
  160. Opd1PropInfo, Opd2PropInfo);
  161. }
  162. unsigned TargetTransformInfo::getShuffleCost(ShuffleKind Kind, Type *Ty,
  163. int Index, Type *SubTp) const {
  164. return TTIImpl->getShuffleCost(Kind, Ty, Index, SubTp);
  165. }
  166. unsigned TargetTransformInfo::getCastInstrCost(unsigned Opcode, Type *Dst,
  167. Type *Src) const {
  168. return TTIImpl->getCastInstrCost(Opcode, Dst, Src);
  169. }
  170. unsigned TargetTransformInfo::getCFInstrCost(unsigned Opcode) const {
  171. return TTIImpl->getCFInstrCost(Opcode);
  172. }
  173. unsigned TargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
  174. Type *CondTy) const {
  175. return TTIImpl->getCmpSelInstrCost(Opcode, ValTy, CondTy);
  176. }
  177. unsigned TargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val,
  178. unsigned Index) const {
  179. return TTIImpl->getVectorInstrCost(Opcode, Val, Index);
  180. }
  181. unsigned TargetTransformInfo::getMemoryOpCost(unsigned Opcode, Type *Src,
  182. unsigned Alignment,
  183. unsigned AddressSpace) const {
  184. return TTIImpl->getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
  185. }
  186. unsigned
  187. TargetTransformInfo::getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
  188. unsigned Alignment,
  189. unsigned AddressSpace) const {
  190. return TTIImpl->getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
  191. }
  192. unsigned TargetTransformInfo::getInterleavedMemoryOpCost(
  193. unsigned Opcode, Type *VecTy, unsigned Factor, ArrayRef<unsigned> Indices,
  194. unsigned Alignment, unsigned AddressSpace) const {
  195. return TTIImpl->getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices,
  196. Alignment, AddressSpace);
  197. }
  198. unsigned
  199. TargetTransformInfo::getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
  200. ArrayRef<Type *> Tys) const {
  201. return TTIImpl->getIntrinsicInstrCost(ID, RetTy, Tys);
  202. }
  203. unsigned TargetTransformInfo::getCallInstrCost(Function *F, Type *RetTy,
  204. ArrayRef<Type *> Tys) const {
  205. return TTIImpl->getCallInstrCost(F, RetTy, Tys);
  206. }
  207. unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
  208. return TTIImpl->getNumberOfParts(Tp);
  209. }
  210. unsigned TargetTransformInfo::getAddressComputationCost(Type *Tp,
  211. bool IsComplex) const {
  212. return TTIImpl->getAddressComputationCost(Tp, IsComplex);
  213. }
  214. unsigned TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
  215. bool IsPairwiseForm) const {
  216. return TTIImpl->getReductionCost(Opcode, Ty, IsPairwiseForm);
  217. }
  218. unsigned
  219. TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const {
  220. return TTIImpl->getCostOfKeepingLiveOverCall(Tys);
  221. }
  222. bool TargetTransformInfo::getTgtMemIntrinsic(IntrinsicInst *Inst,
  223. MemIntrinsicInfo &Info) const {
  224. return TTIImpl->getTgtMemIntrinsic(Inst, Info);
  225. }
  226. Value *TargetTransformInfo::getOrCreateResultFromMemIntrinsic(
  227. IntrinsicInst *Inst, Type *ExpectedType) const {
  228. return TTIImpl->getOrCreateResultFromMemIntrinsic(Inst, ExpectedType);
  229. }
  230. bool TargetTransformInfo::hasCompatibleFunctionAttributes(
  231. const Function *Caller, const Function *Callee) const {
  232. return TTIImpl->hasCompatibleFunctionAttributes(Caller, Callee);
  233. }
  234. TargetTransformInfo::Concept::~Concept() {}
  235. TargetIRAnalysis::TargetIRAnalysis() : TTICallback(&getDefaultTTI) {}
  236. TargetIRAnalysis::TargetIRAnalysis(
  237. std::function<Result(Function &)> TTICallback)
  238. : TTICallback(TTICallback) {}
  239. TargetIRAnalysis::Result TargetIRAnalysis::run(Function &F) {
  240. return TTICallback(F);
  241. }
  242. char TargetIRAnalysis::PassID;
  243. TargetIRAnalysis::Result TargetIRAnalysis::getDefaultTTI(Function &F) {
  244. return Result(F.getParent()->getDataLayout());
  245. }
  246. // Register the basic pass.
  247. INITIALIZE_PASS(TargetTransformInfoWrapperPass, "tti",
  248. "Target Transform Information", false, true)
  249. char TargetTransformInfoWrapperPass::ID = 0;
  250. void TargetTransformInfoWrapperPass::anchor() {}
  251. TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass()
  252. : ImmutablePass(ID) {
  253. initializeTargetTransformInfoWrapperPassPass(
  254. *PassRegistry::getPassRegistry());
  255. }
  256. TargetTransformInfoWrapperPass::TargetTransformInfoWrapperPass(
  257. TargetIRAnalysis TIRA)
  258. : ImmutablePass(ID), TIRA(std::move(TIRA)) {
  259. initializeTargetTransformInfoWrapperPassPass(
  260. *PassRegistry::getPassRegistry());
  261. }
  262. TargetTransformInfo &TargetTransformInfoWrapperPass::getTTI(Function &F) {
  263. TTI = TIRA.run(F);
  264. return *TTI;
  265. }
  266. ImmutablePass *
  267. llvm::createTargetTransformInfoWrapperPass(TargetIRAnalysis TIRA) {
  268. return new TargetTransformInfoWrapperPass(std::move(TIRA));
  269. }