| 1 | //===- LoongArchTargetTransformInfo.h - LoongArch 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 | /// LoongArch 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_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H |
| 17 | #define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H |
| 18 | |
| 19 | #include "LoongArchSubtarget.h" |
| 20 | #include "LoongArchTargetMachine.h" |
| 21 | #include "llvm/Analysis/TargetTransformInfo.h" |
| 22 | #include "llvm/CodeGen/BasicTTIImpl.h" |
| 23 | |
| 24 | namespace llvm { |
| 25 | |
| 26 | class LoongArchTTIImpl : public BasicTTIImplBase<LoongArchTTIImpl> { |
| 27 | typedef BasicTTIImplBase<LoongArchTTIImpl> BaseT; |
| 28 | typedef TargetTransformInfo TTI; |
| 29 | friend BaseT; |
| 30 | |
| 31 | enum LoongArchRegisterClass { GPRRC, FPRRC, VRRC }; |
| 32 | const LoongArchSubtarget *ST; |
| 33 | const LoongArchTargetLowering *TLI; |
| 34 | |
| 35 | const LoongArchSubtarget *getST() const { return ST; } |
| 36 | const LoongArchTargetLowering *getTLI() const { return TLI; } |
| 37 | |
| 38 | public: |
| 39 | explicit LoongArchTTIImpl(const LoongArchTargetMachine *TM, const Function &F) |
| 40 | : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), |
| 41 | TLI(ST->getTargetLowering()) {} |
| 42 | |
| 43 | TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const; |
| 44 | unsigned getNumberOfRegisters(unsigned ClassID) const; |
| 45 | unsigned getRegisterClassForType(bool Vector, Type *Ty = nullptr) const; |
| 46 | const char *getRegisterClassName(unsigned ClassID) const; |
| 47 | |
| 48 | // TODO: Implement more hooks to provide TTI machinery for LoongArch. |
| 49 | }; |
| 50 | |
| 51 | } // end namespace llvm |
| 52 | |
| 53 | #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H |
| 54 |