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b71d385494
now that we have a correct and cached subtarget specific to the function. Also, finish providing a cached per-function subtarget in the core LLVMTargetMachine -- that layer hadn't switched over yet. The only use of the TargetMachine was to re-lookup a subtarget for a particular function to work around the fact that TTI was immutable. Now that it is per-function and we haved a cached subtarget, use it. This still leaves a few interfaces with real warts on them where we were passing Function objects through the TTI interface. I'll remove these and clean their usage up in subsequent commits now that this isn't necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227738 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
1.6 KiB
C++
38 lines
1.6 KiB
C++
//===- 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/CodeGen/Passes.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/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), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
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