1*0b57cec5SDimitry Andric //===- BasicTargetTransformInfo.cpp - Basic target-independent TTI impl ---===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric /// \file 9*0b57cec5SDimitry Andric /// This file provides the implementation of a basic TargetTransformInfo pass 10*0b57cec5SDimitry Andric /// predicated on the target abstractions present in the target independent 11*0b57cec5SDimitry Andric /// code generator. It uses these (primarily TargetLowering) to model as much 12*0b57cec5SDimitry Andric /// of the TTI query interface as possible. It is included by most targets so 13*0b57cec5SDimitry Andric /// that they can specialize only a small subset of the query space. 14*0b57cec5SDimitry Andric /// 15*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 16*0b57cec5SDimitry Andric 17*0b57cec5SDimitry Andric #include "llvm/CodeGen/BasicTTIImpl.h" 18*0b57cec5SDimitry Andric #include "llvm/CodeGen/TargetSubtargetInfo.h" 19*0b57cec5SDimitry Andric #include "llvm/IR/Function.h" 20*0b57cec5SDimitry Andric #include "llvm/Support/CommandLine.h" 21*0b57cec5SDimitry Andric #include "llvm/Target/TargetMachine.h" 22*0b57cec5SDimitry Andric 23*0b57cec5SDimitry Andric using namespace llvm; 24*0b57cec5SDimitry Andric 25*0b57cec5SDimitry Andric // This flag is used by the template base class for BasicTTIImpl, and here to 26*0b57cec5SDimitry Andric // provide a definition. 27*0b57cec5SDimitry Andric cl::opt<unsigned> 28*0b57cec5SDimitry Andric llvm::PartialUnrollingThreshold("partial-unrolling-threshold", cl::init(0), 29*0b57cec5SDimitry Andric cl::desc("Threshold for partial unrolling"), 30*0b57cec5SDimitry Andric cl::Hidden); 31*0b57cec5SDimitry Andric 32*0b57cec5SDimitry Andric BasicTTIImpl::BasicTTIImpl(const TargetMachine *TM, const Function &F) 33*0b57cec5SDimitry Andric : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 34*0b57cec5SDimitry Andric TLI(ST->getTargetLowering()) {} 35