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  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2015-07-15 17:51:08 UTC
  • Revision ID: package-import@ubuntu.com-20150715175108-l8mynwovkx4zx697
Tags: upstream-3.7~+rc2
Import upstream version 3.7~+rc2

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lib/CodeGen/BasicTargetTransformInfo.cpp
 
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//===- BasicTargetTransformInfo.cpp - Basic target-independent TTI impl ---===//
 
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//
 
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//                     The LLVM Compiler Infrastructure
 
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//
 
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// This file is distributed under the University of Illinois Open Source
 
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// License. See LICENSE.TXT for details.
 
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//
 
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//===----------------------------------------------------------------------===//
 
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/// \file
 
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/// This file provides the implementation of a basic TargetTransformInfo pass
 
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/// predicated on the target abstractions present in the target independent
 
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/// code generator. It uses these (primarily TargetLowering) to model as much
 
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/// of the TTI query interface as possible. It is included by most targets so
 
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/// that they can specialize only a small subset of the query space.
 
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///
 
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//===----------------------------------------------------------------------===//
 
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#include "llvm/CodeGen/BasicTTIImpl.h"
 
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#include "llvm/Analysis/LoopInfo.h"
 
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#include "llvm/Analysis/TargetTransformInfo.h"
 
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#include "llvm/Analysis/TargetTransformInfoImpl.h"
 
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#include "llvm/CodeGen/Passes.h"
 
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#include "llvm/Support/CommandLine.h"
 
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#include <utility>
 
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using namespace llvm;
 
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#define DEBUG_TYPE "basictti"
 
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// This flag is used by the template base class for BasicTTIImpl, and here to
 
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// provide a definition.
 
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cl::opt<unsigned>
 
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    llvm::PartialUnrollingThreshold("partial-unrolling-threshold", cl::init(0),
 
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                                    cl::desc("Threshold for partial unrolling"),
 
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                                    cl::Hidden);
 
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BasicTTIImpl::BasicTTIImpl(const TargetMachine *TM, Function &F)
 
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    : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
 
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      TLI(ST->getTargetLowering()) {}