xref: /freebsd/contrib/llvm-project/llvm/lib/CodeGen/BasicTargetTransformInfo.cpp (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
10b57cec5SDimitry Andric //===- BasicTargetTransformInfo.cpp - Basic target-independent TTI impl ---===//
20b57cec5SDimitry Andric //
30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
60b57cec5SDimitry Andric //
70b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
80b57cec5SDimitry Andric /// \file
90b57cec5SDimitry Andric /// This file provides the implementation of a basic TargetTransformInfo pass
100b57cec5SDimitry Andric /// predicated on the target abstractions present in the target independent
110b57cec5SDimitry Andric /// code generator. It uses these (primarily TargetLowering) to model as much
120b57cec5SDimitry Andric /// of the TTI query interface as possible. It is included by most targets so
130b57cec5SDimitry Andric /// that they can specialize only a small subset of the query space.
140b57cec5SDimitry Andric ///
150b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
160b57cec5SDimitry Andric 
170b57cec5SDimitry Andric #include "llvm/CodeGen/BasicTTIImpl.h"
180b57cec5SDimitry Andric #include "llvm/CodeGen/TargetSubtargetInfo.h"
190b57cec5SDimitry Andric #include "llvm/IR/Function.h"
200b57cec5SDimitry Andric #include "llvm/Support/CommandLine.h"
210b57cec5SDimitry Andric #include "llvm/Target/TargetMachine.h"
220b57cec5SDimitry Andric 
230b57cec5SDimitry Andric using namespace llvm;
240b57cec5SDimitry Andric 
250b57cec5SDimitry Andric // This flag is used by the template base class for BasicTTIImpl, and here to
260b57cec5SDimitry Andric // provide a definition.
270b57cec5SDimitry Andric cl::opt<unsigned>
280b57cec5SDimitry Andric llvm::PartialUnrollingThreshold("partial-unrolling-threshold", cl::init(0),
290b57cec5SDimitry Andric                                 cl::desc("Threshold for partial unrolling"),
300b57cec5SDimitry Andric                                 cl::Hidden);
310b57cec5SDimitry Andric 
BasicTTIImpl(const TargetMachine * TM,const Function & F)320b57cec5SDimitry Andric BasicTTIImpl::BasicTTIImpl(const TargetMachine *TM, const Function &F)
33*0fca6ea1SDimitry Andric     : BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl(F)),
340b57cec5SDimitry Andric       TLI(ST->getTargetLowering()) {}
35