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ad8eb85545
This patch introduces the priority analysis and the priority advisor, the default implementation, and the scaffolding for introducing the other implementations of the advisor. Reviewed By: mtrofin Differential Revision: https://reviews.llvm.org/D131220
30 lines
1.2 KiB
C++
30 lines
1.2 KiB
C++
//===- RegAllocPriorityAdvisor.cpp - live ranges priority advisor ---------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Implementation of the default priority advisor and of the Analysis pass.
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//
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//===----------------------------------------------------------------------===//
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#include "RegAllocPriorityAdvisor.h"
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#include "RegAllocGreedy.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/VirtRegMap.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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RegAllocPriorityAdvisor::RegAllocPriorityAdvisor(const MachineFunction &MF,
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const RAGreedy &RA)
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: RA(RA), LIS(RA.getLiveIntervals()), VRM(RA.getVirtRegMap()),
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MRI(&VRM->getRegInfo()), TRI(MF.getSubtarget().getRegisterInfo()),
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RegClassInfo(RA.getRegClassInfo()), Indexes(RA.getIndexes()),
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RegClassPriorityTrumpsGlobalness(
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RA.getRegClassPriorityTrumpsGlobalness()),
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ReverseLocalAssignment(RA.getReverseLocalAssignment()) {}
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