LLVM 17.0.0git
WebAssemblyTargetTransformInfo.h
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1//==- WebAssemblyTargetTransformInfo.h - WebAssembly-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///
9/// \file
10/// This file a TargetTransformInfo::Concept conforming object specific
11/// to the WebAssembly target machine.
12///
13/// It uses the target's detailed information to provide more precise answers to
14/// certain TTI queries, while letting the target independent and default TTI
15/// implementations handle the rest.
16///
17//===----------------------------------------------------------------------===//
18
19#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H
20#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYTARGETTRANSFORMINFO_H
21
24#include <algorithm>
25
26namespace llvm {
27
28class WebAssemblyTTIImpl final : public BasicTTIImplBase<WebAssemblyTTIImpl> {
31 friend BaseT;
32
33 const WebAssemblySubtarget *ST;
35
36 const WebAssemblySubtarget *getST() const { return ST; }
37 const WebAssemblyTargetLowering *getTLI() const { return TLI; }
38
39public:
41 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
42 TLI(ST->getTargetLowering()) {}
43
44 /// \name Scalar TTI Implementations
45 /// @{
46
47 // TODO: Implement more Scalar TTI for WebAssembly
48
49 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const;
50
53 OptimizationRemarkEmitter *ORE) const;
54
55 /// @}
56
57 /// \name Vector TTI Implementations
58 /// @{
59
60 unsigned getNumberOfRegisters(unsigned ClassID) const;
63 unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind,
65 TTI::OperandValueInfo Op2Info = {TTI::OK_AnyValue, TTI::OP_None},
66 ArrayRef<const Value *> Args = ArrayRef<const Value *>(),
67 const Instruction *CxtI = nullptr);
69 InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val,
71 unsigned Index, Value *Op0, Value *Op1);
72
73 /// @}
74
75 bool areInlineCompatible(const Function *Caller,
76 const Function *Callee) const;
77
78 bool supportsTailCalls() const;
79};
80
81} // end namespace llvm
82
83#endif
amdgpu Simplify well known AMD library false FunctionCallee Callee
static const Function * getParent(const Value *V)
This file provides a helper that implements much of the TTI interface in terms of the target-independ...
static cl::opt< TargetTransformInfo::TargetCostKind > CostKind("cost-kind", cl::desc("Target cost kind"), cl::init(TargetTransformInfo::TCK_RecipThroughput), cl::values(clEnumValN(TargetTransformInfo::TCK_RecipThroughput, "throughput", "Reciprocal throughput"), clEnumValN(TargetTransformInfo::TCK_Latency, "latency", "Instruction latency"), clEnumValN(TargetTransformInfo::TCK_CodeSize, "code-size", "Code size"), clEnumValN(TargetTransformInfo::TCK_SizeAndLatency, "size-latency", "Code size and latency")))
#define F(x, y, z)
Definition: MD5.cpp:55
const char LLVMTargetMachineRef TM
This file declares the WebAssembly-specific subclass of TargetMachine.
Base class which can be used to help build a TTI implementation.
Definition: BasicTTIImpl.h:79
InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind, unsigned Index, Value *Op0, Value *Op1)
Represents a single loop in the control flow graph.
Definition: LoopInfo.h:547
The optimization diagnostic interface.
The main scalar evolution driver.
const DataLayout & getDataLayout() const
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
TargetCostKind
The kind of cost model.
PopcntSupportKind
Flags indicating the kind of support for population count.
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
WebAssemblyTTIImpl(const WebAssemblyTargetMachine *TM, const Function &F)
TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const
bool areInlineCompatible(const Function *Caller, const Function *Callee) const
InstructionCost getVectorInstrCost(unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind, unsigned Index, Value *Op0, Value *Op1)
TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const
void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, TTI::UnrollingPreferences &UP, OptimizationRemarkEmitter *ORE) const
unsigned getNumberOfRegisters(unsigned ClassID) const
InstructionCost getArithmeticInstrCost(unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind, TTI::OperandValueInfo Op1Info={TTI::OK_AnyValue, TTI::OP_None}, TTI::OperandValueInfo Op2Info={TTI::OK_AnyValue, TTI::OP_None}, ArrayRef< const Value * > Args=ArrayRef< const Value * >(), const Instruction *CxtI=nullptr)
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
Parameters that control the generic loop unrolling transformation.