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