1 //==- WebAssemblyTargetTransformInfo.h - WebAssembly-specific TTI -*- C++ -*-=// 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 /// 10 /// \file 11 /// This file a TargetTransformInfo::Concept conforming object specific 12 /// to the WebAssembly target machine. 13 /// 14 /// It uses the target's detailed information to provide more precise answers to 15 /// certain TTI queries, while letting the target independent and default TTI 16 /// implementations handle the rest. 17 /// 18 //===----------------------------------------------------------------------===// 19 20 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H 21 #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H 22 23 #include "WebAssemblyTargetMachine.h" 24 #include "llvm/CodeGen/BasicTTIImpl.h" 25 #include <algorithm> 26 27 namespace llvm { 28 29 class WebAssemblyTTIImpl final : public BasicTTIImplBase<WebAssemblyTTIImpl> { 30 typedef BasicTTIImplBase<WebAssemblyTTIImpl> BaseT; 31 typedef TargetTransformInfo TTI; 32 friend BaseT; 33 34 const WebAssemblySubtarget *ST; 35 const WebAssemblyTargetLowering *TLI; 36 37 const WebAssemblySubtarget *getST() const { return ST; } 38 const WebAssemblyTargetLowering *getTLI() const { return TLI; } 39 40 public: 41 WebAssemblyTTIImpl(const WebAssemblyTargetMachine *TM, const Function &F) 42 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 43 TLI(ST->getTargetLowering()) {} 44 45 /// \name Scalar TTI Implementations 46 /// @{ 47 48 // TODO: Implement more Scalar TTI for WebAssembly 49 50 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const; 51 52 /// @} 53 54 /// \name Vector TTI Implementations 55 /// @{ 56 57 unsigned getNumberOfRegisters(bool Vector); 58 unsigned getRegisterBitWidth(bool Vector) const; 59 unsigned getArithmeticInstrCost( 60 unsigned Opcode, Type *Ty, 61 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 62 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 63 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 64 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 65 ArrayRef<const Value *> Args = ArrayRef<const Value *>()); 66 unsigned getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 67 68 /// @} 69 }; 70 71 } // end namespace llvm 72 73 #endif 74
