LLVM  14.0.0git
BasicTargetTransformInfo.cpp
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1 //===- BasicTargetTransformInfo.cpp - Basic target-independent TTI impl ---===//
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 provides the implementation of a basic TargetTransformInfo pass
10 /// predicated on the target abstractions present in the target independent
11 /// code generator. It uses these (primarily TargetLowering) to model as much
12 /// of the TTI query interface as possible. It is included by most targets so
13 /// that they can specialize only a small subset of the query space.
14 ///
15 //===----------------------------------------------------------------------===//
16 
19 #include "llvm/IR/Function.h"
22 
23 using namespace llvm;
24 
25 // This flag is used by the template base class for BasicTTIImpl, and here to
26 // provide a definition.
28 llvm::PartialUnrollingThreshold("partial-unrolling-threshold", cl::init(0),
29  cl::desc("Threshold for partial unrolling"),
30  cl::Hidden);
31 
33  : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
34  TLI(ST->getTargetLowering()) {}
llvm
This file implements support for optimizing divisions by a constant.
Definition: AllocatorList.h:23
llvm::Function
Definition: Function.h:62
llvm::cl::Hidden
@ Hidden
Definition: CommandLine.h:143
F
#define F(x, y, z)
Definition: MD5.cpp:56
CommandLine.h
TargetMachine.h
llvm::PartialUnrollingThreshold
cl::opt< unsigned > PartialUnrollingThreshold
llvm::cl::opt
Definition: CommandLine.h:1432
llvm::ARM_MB::ST
@ ST
Definition: ARMBaseInfo.h:73
llvm::cl::init
initializer< Ty > init(const Ty &Val)
Definition: CommandLine.h:441
llvm::BasicTTIImplBase< BasicTTIImpl >
llvm::TargetMachine
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:79
llvm::BasicTTIImpl::BasicTTIImpl
BasicTTIImpl(const TargetMachine *TM, const Function &F)
Definition: BasicTargetTransformInfo.cpp:32
getParent
static const Function * getParent(const Value *V)
Definition: BasicAliasAnalysis.cpp:867
TargetSubtargetInfo.h
Function.h
TM
const char LLVMTargetMachineRef TM
Definition: PassBuilderBindings.cpp:47
BasicTTIImpl.h
llvm::cl::desc
Definition: CommandLine.h:412