| //==- WebAssemblyTargetTransformInfo.h - WebAssembly-specific TTI -*- C++ -*-=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief This file a TargetTransformInfo::Concept conforming object specific |
| /// to the WebAssembly target machine. |
| /// |
| /// It uses the target's detailed information to provide more precise answers to |
| /// certain TTI queries, while letting the target independent and default TTI |
| /// implementations handle the rest. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H |
| #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H |
| |
| #include "WebAssemblyTargetMachine.h" |
| #include "llvm/CodeGen/BasicTTIImpl.h" |
| #include <algorithm> |
| |
| namespace llvm { |
| |
| class WebAssemblyTTIImpl final : public BasicTTIImplBase<WebAssemblyTTIImpl> { |
| typedef BasicTTIImplBase<WebAssemblyTTIImpl> BaseT; |
| typedef TargetTransformInfo TTI; |
| friend BaseT; |
| |
| const WebAssemblySubtarget *ST; |
| const WebAssemblyTargetLowering *TLI; |
| |
| const WebAssemblySubtarget *getST() const { return ST; } |
| const WebAssemblyTargetLowering *getTLI() const { return TLI; } |
| |
| public: |
| WebAssemblyTTIImpl(const WebAssemblyTargetMachine *TM, const Function &F) |
| : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), |
| TLI(ST->getTargetLowering()) {} |
| |
| // Provide value semantics. MSVC requires that we spell all of these out. |
| WebAssemblyTTIImpl(const WebAssemblyTTIImpl &Arg) |
| : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {} |
| WebAssemblyTTIImpl(WebAssemblyTTIImpl &&Arg) |
| : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)), |
| TLI(std::move(Arg.TLI)) {} |
| |
| /// \name Scalar TTI Implementations |
| /// @{ |
| |
| // TODO: Implement more Scalar TTI for WebAssembly |
| |
| TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const; |
| |
| /// @} |
| |
| /// \name Vector TTI Implementations |
| /// @{ |
| |
| // TODO: Implement Vector TTI for WebAssembly |
| |
| /// @} |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |