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2e08d769c3
This commit connects the machine function analysis pass (which creates machine functions) to the MIR parser, which will initialize the machine functions with the state from the MIR file and reconstruct the machine IR. This commit introduces a new interface called 'MachineFunctionInitializer', which can be used to provide custom initialization for the machine functions. This commit also introduces a new diagnostic class called 'DiagnosticInfoMIRParser' which is used for MIR parsing errors. This commit modifies the default diagnostic handling in LLVMContext - now the the diagnostics are printed directly into llvm::errs() so that the MIR parsing errors can be printed with colours. Reviewers: Justin Bogner Differential Revision: http://reviews.llvm.org/D9928 llvm-svn: 239753
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
//===-- MachineFunctionAnalysis.cpp ---------------------------------------===//
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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 file contains the definitions of the MachineFunctionAnalysis members.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineFunctionAnalysis.h"
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#include "llvm/CodeGen/GCMetadata.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/CodeGen/MachineFunctionInitializer.h"
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using namespace llvm;
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char MachineFunctionAnalysis::ID = 0;
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MachineFunctionAnalysis::MachineFunctionAnalysis(
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const TargetMachine &tm, MachineFunctionInitializer *MFInitializer)
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: FunctionPass(ID), TM(tm), MF(nullptr), MFInitializer(MFInitializer) {
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initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry());
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}
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MachineFunctionAnalysis::~MachineFunctionAnalysis() {
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releaseMemory();
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assert(!MF && "MachineFunctionAnalysis left initialized!");
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}
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void MachineFunctionAnalysis::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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AU.addRequired<MachineModuleInfo>();
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}
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bool MachineFunctionAnalysis::doInitialization(Module &M) {
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MachineModuleInfo *MMI = getAnalysisIfAvailable<MachineModuleInfo>();
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assert(MMI && "MMI not around yet??");
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MMI->setModule(&M);
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NextFnNum = 0;
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return false;
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}
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bool MachineFunctionAnalysis::runOnFunction(Function &F) {
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assert(!MF && "MachineFunctionAnalysis already initialized!");
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MF = new MachineFunction(&F, TM, NextFnNum++,
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getAnalysis<MachineModuleInfo>());
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if (MFInitializer)
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MFInitializer->initializeMachineFunction(*MF);
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return false;
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}
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void MachineFunctionAnalysis::releaseMemory() {
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delete MF;
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MF = nullptr;
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}
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