1 //===-- XCoreTargetTransformInfo.h - XCore specific TTI ---------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// \file 9 /// This file a TargetTransformInfo::Concept conforming object specific to the 10 /// XCore target machine. It uses the target's detailed information to 11 /// provide more precise answers to certain TTI queries, while letting the 12 /// target independent and default TTI implementations handle the rest. 13 /// 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H 17 #define LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H 18 19 #include "XCore.h" 20 #include "XCoreTargetMachine.h" 21 #include "llvm/Analysis/TargetTransformInfo.h" 22 #include "llvm/CodeGen/BasicTTIImpl.h" 23 #include "llvm/CodeGen/TargetLowering.h" 24 25 namespace llvm { 26 27 class XCoreTTIImpl : public BasicTTIImplBase<XCoreTTIImpl> { 28 typedef BasicTTIImplBase<XCoreTTIImpl> BaseT; 29 typedef TargetTransformInfo TTI; 30 friend BaseT; 31 32 const XCoreSubtarget *ST; 33 const XCoreTargetLowering *TLI; 34 getST()35 const XCoreSubtarget *getST() const { return ST; } getTLI()36 const XCoreTargetLowering *getTLI() const { return TLI; } 37 38 public: XCoreTTIImpl(const XCoreTargetMachine * TM,const Function & F)39 explicit XCoreTTIImpl(const XCoreTargetMachine *TM, const Function &F) 40 : BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl()), 41 TLI(ST->getTargetLowering()) {} 42 getNumberOfRegisters(unsigned ClassID)43 unsigned getNumberOfRegisters(unsigned ClassID) const { 44 bool Vector = (ClassID == 1); 45 if (Vector) { 46 return 0; 47 } 48 return 12; 49 } 50 }; 51 52 } // end namespace llvm 53 54 #endif 55