5fb3a57ea7
LoopUnroll estimates the loop size via getInstructionCost(), but getInstructionCost() cannot pass CostKind to getVectorInstrCost(). And so does getShuffleCost() to getBroadcastShuffleOverhead(), getPermuteShuffleOverhead(), getExtractSubvectorOverhead(), and getInsertSubvectorOverhead(). To address this, this patch adds an argument CostKind to these functions. Reviewed By: RKSimon Differential Revision: https://reviews.llvm.org/D142116
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
//==- WebAssemblyTargetTransformInfo.h - WebAssembly-specific TTI -*- C++ -*-=//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// 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 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, const Function &F)
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: BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
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TLI(ST->getTargetLowering()) {}
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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) const;
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void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
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TTI::UnrollingPreferences &UP,
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OptimizationRemarkEmitter *ORE) const;
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/// @}
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/// \name Vector TTI Implementations
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/// @{
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unsigned getNumberOfRegisters(unsigned ClassID) const;
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TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const;
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InstructionCost getArithmeticInstrCost(
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unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind,
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TTI::OperandValueInfo Op1Info = {TTI::OK_AnyValue, TTI::OP_None},
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TTI::OperandValueInfo Op2Info = {TTI::OK_AnyValue, TTI::OP_None},
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ArrayRef<const Value *> Args = ArrayRef<const Value *>(),
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const Instruction *CxtI = nullptr);
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using BaseT::getVectorInstrCost;
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InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val,
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TTI::TargetCostKind CostKind,
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unsigned Index, Value *Op0, Value *Op1);
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/// @}
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bool areInlineCompatible(const Function *Caller,
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const Function *Callee) const;
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bool supportsTailCalls() const;
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};
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} // end namespace llvm
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#endif
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