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757c90dd00
shim between the TargetTransformInfo immutable pass and the Subtarget via the TargetMachine and Function. Migrate a single call from BasicTargetTransformInfo as an example and provide shims where TargetMachine begins taking a Function to determine the subtarget. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218004 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//===- llvm/Analysis/FunctionTargetTransformInfo.h --------------*- C++ -*-===//
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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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//
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// This pass wraps a TargetTransformInfo in a FunctionPass so that it can
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// forward along the current Function so that we can make target specific
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// decisions based on the particular subtarget specified for each Function.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/InitializePasses.h"
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#include "llvm/Analysis/FunctionTargetTransformInfo.h"
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using namespace llvm;
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#define DEBUG_TYPE "function-tti"
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static const char ftti_name[] = "Function TargetTransformInfo";
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INITIALIZE_PASS_BEGIN(FunctionTargetTransformInfo, "function_tti", ftti_name, false, true)
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INITIALIZE_AG_DEPENDENCY(TargetTransformInfo)
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INITIALIZE_PASS_END(FunctionTargetTransformInfo, "function_tti", ftti_name, false, true)
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char FunctionTargetTransformInfo::ID = 0;
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namespace llvm {
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FunctionPass *createFunctionTargetTransformInfoPass() {
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return new FunctionTargetTransformInfo();
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}
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}
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FunctionTargetTransformInfo::FunctionTargetTransformInfo()
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: FunctionPass(ID), Fn(nullptr), TTI(nullptr) {
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initializeFunctionTargetTransformInfoPass(*PassRegistry::getPassRegistry());
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}
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void FunctionTargetTransformInfo::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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AU.addRequired<TargetTransformInfo>();
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}
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void FunctionTargetTransformInfo::releaseMemory() {}
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bool FunctionTargetTransformInfo::runOnFunction(Function &F) {
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Fn = &F;
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TTI = &getAnalysis<TargetTransformInfo>();
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return false;
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}
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