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author | robot-piglet <robot-piglet@yandex-team.com> | 2025-03-05 13:38:11 +0300 |
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committer | robot-piglet <robot-piglet@yandex-team.com> | 2025-03-05 13:49:53 +0300 |
commit | 9eed360f02de773a5ed2de5d2a3e81fc7f06acfa (patch) | |
tree | 744a4054e64eb443073c7c6ad36b29cedcf9c2e6 /contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp | |
parent | c141a5c40bda2eed1a68b0626ffdae5fd19359a6 (diff) | |
download | ydb-9eed360f02de773a5ed2de5d2a3e81fc7f06acfa.tar.gz |
Intermediate changes
commit_hash:2ec2671384dd8e604d41bc5c52c2f7858e4afea6
Diffstat (limited to 'contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp')
-rw-r--r-- | contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp b/contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp deleted file mode 100644 index 31d4fc7d02b..00000000000 --- a/contrib/libs/llvm14/lib/CodeGen/MachineModuleInfo.cpp +++ /dev/null @@ -1,429 +0,0 @@ -//===-- llvm/CodeGen/MachineModuleInfo.cpp ----------------------*- C++ -*-===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include "llvm/CodeGen/MachineModuleInfo.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/PostOrderIterator.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/ADT/TinyPtrVector.h" -#include "llvm/CodeGen/MachineFunction.h" -#include "llvm/CodeGen/Passes.h" -#include "llvm/IR/BasicBlock.h" -#include "llvm/IR/DerivedTypes.h" -#include "llvm/IR/DiagnosticInfo.h" -#include "llvm/IR/Instructions.h" -#include "llvm/IR/LLVMContext.h" -#include "llvm/IR/Module.h" -#include "llvm/IR/Value.h" -#include "llvm/IR/ValueHandle.h" -#include "llvm/InitializePasses.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCSymbol.h" -#include "llvm/MC/MCSymbolXCOFF.h" -#include "llvm/Pass.h" -#include "llvm/Support/Casting.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Target/TargetLoweringObjectFile.h" -#include "llvm/Target/TargetMachine.h" -#include <algorithm> -#include <cassert> -#include <memory> -#include <utility> -#include <vector> - -using namespace llvm; -using namespace llvm::dwarf; - -// Out of line virtual method. -MachineModuleInfoImpl::~MachineModuleInfoImpl() = default; - -namespace llvm { - -class MMIAddrLabelMapCallbackPtr final : CallbackVH { - MMIAddrLabelMap *Map = nullptr; - -public: - MMIAddrLabelMapCallbackPtr() = default; - MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V) {} - - void setPtr(BasicBlock *BB) { - ValueHandleBase::operator=(BB); - } - - void setMap(MMIAddrLabelMap *map) { Map = map; } - - void deleted() override; - void allUsesReplacedWith(Value *V2) override; -}; - -class MMIAddrLabelMap { - MCContext &Context; - struct AddrLabelSymEntry { - /// The symbols for the label. - TinyPtrVector<MCSymbol *> Symbols; - - Function *Fn; // The containing function of the BasicBlock. - unsigned Index; // The index in BBCallbacks for the BasicBlock. - }; - - DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry> AddrLabelSymbols; - - /// Callbacks for the BasicBlock's that we have entries for. We use this so - /// we get notified if a block is deleted or RAUWd. - std::vector<MMIAddrLabelMapCallbackPtr> BBCallbacks; - - /// This is a per-function list of symbols whose corresponding BasicBlock got - /// deleted. These symbols need to be emitted at some point in the file, so - /// AsmPrinter emits them after the function body. - DenseMap<AssertingVH<Function>, std::vector<MCSymbol*>> - DeletedAddrLabelsNeedingEmission; - -public: - MMIAddrLabelMap(MCContext &context) : Context(context) {} - - ~MMIAddrLabelMap() { - assert(DeletedAddrLabelsNeedingEmission.empty() && - "Some labels for deleted blocks never got emitted"); - } - - ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(BasicBlock *BB); - - void takeDeletedSymbolsForFunction(Function *F, - std::vector<MCSymbol*> &Result); - - void UpdateForDeletedBlock(BasicBlock *BB); - void UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New); -}; - -} // end namespace llvm - -ArrayRef<MCSymbol *> MMIAddrLabelMap::getAddrLabelSymbolToEmit(BasicBlock *BB) { - assert(BB->hasAddressTaken() && - "Shouldn't get label for block without address taken"); - AddrLabelSymEntry &Entry = AddrLabelSymbols[BB]; - - // If we already had an entry for this block, just return it. - if (!Entry.Symbols.empty()) { - assert(BB->getParent() == Entry.Fn && "Parent changed"); - return Entry.Symbols; - } - - // Otherwise, this is a new entry, create a new symbol for it and add an - // entry to BBCallbacks so we can be notified if the BB is deleted or RAUWd. - BBCallbacks.emplace_back(BB); - BBCallbacks.back().setMap(this); - Entry.Index = BBCallbacks.size() - 1; - Entry.Fn = BB->getParent(); - MCSymbol *Sym = BB->hasAddressTaken() ? Context.createNamedTempSymbol() - : Context.createTempSymbol(); - Entry.Symbols.push_back(Sym); - return Entry.Symbols; -} - -/// If we have any deleted symbols for F, return them. -void MMIAddrLabelMap:: -takeDeletedSymbolsForFunction(Function *F, std::vector<MCSymbol*> &Result) { - DenseMap<AssertingVH<Function>, std::vector<MCSymbol*>>::iterator I = - DeletedAddrLabelsNeedingEmission.find(F); - - // If there are no entries for the function, just return. - if (I == DeletedAddrLabelsNeedingEmission.end()) return; - - // Otherwise, take the list. - std::swap(Result, I->second); - DeletedAddrLabelsNeedingEmission.erase(I); -} - -void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) { - // If the block got deleted, there is no need for the symbol. If the symbol - // was already emitted, we can just forget about it, otherwise we need to - // queue it up for later emission when the function is output. - AddrLabelSymEntry Entry = std::move(AddrLabelSymbols[BB]); - AddrLabelSymbols.erase(BB); - assert(!Entry.Symbols.empty() && "Didn't have a symbol, why a callback?"); - BBCallbacks[Entry.Index] = nullptr; // Clear the callback. - - assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) && - "Block/parent mismatch"); - - for (MCSymbol *Sym : Entry.Symbols) { - if (Sym->isDefined()) - return; - - // If the block is not yet defined, we need to emit it at the end of the - // function. Add the symbol to the DeletedAddrLabelsNeedingEmission list - // for the containing Function. Since the block is being deleted, its - // parent may already be removed, we have to get the function from 'Entry'. - DeletedAddrLabelsNeedingEmission[Entry.Fn].push_back(Sym); - } -} - -void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) { - // Get the entry for the RAUW'd block and remove it from our map. - AddrLabelSymEntry OldEntry = std::move(AddrLabelSymbols[Old]); - AddrLabelSymbols.erase(Old); - assert(!OldEntry.Symbols.empty() && "Didn't have a symbol, why a callback?"); - - AddrLabelSymEntry &NewEntry = AddrLabelSymbols[New]; - - // If New is not address taken, just move our symbol over to it. - if (NewEntry.Symbols.empty()) { - BBCallbacks[OldEntry.Index].setPtr(New); // Update the callback. - NewEntry = std::move(OldEntry); // Set New's entry. - return; - } - - BBCallbacks[OldEntry.Index] = nullptr; // Update the callback. - - // Otherwise, we need to add the old symbols to the new block's set. - llvm::append_range(NewEntry.Symbols, OldEntry.Symbols); -} - -void MMIAddrLabelMapCallbackPtr::deleted() { - Map->UpdateForDeletedBlock(cast<BasicBlock>(getValPtr())); -} - -void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) { - Map->UpdateForRAUWBlock(cast<BasicBlock>(getValPtr()), cast<BasicBlock>(V2)); -} - -void MachineModuleInfo::initialize() { - ObjFileMMI = nullptr; - CurCallSite = 0; - NextFnNum = 0; - UsesMSVCFloatingPoint = UsesMorestackAddr = false; - HasSplitStack = HasNosplitStack = false; - AddrLabelSymbols = nullptr; -} - -void MachineModuleInfo::finalize() { - Personalities.clear(); - - delete AddrLabelSymbols; - AddrLabelSymbols = nullptr; - - Context.reset(); - // We don't clear the ExternalContext. - - delete ObjFileMMI; - ObjFileMMI = nullptr; -} - -MachineModuleInfo::MachineModuleInfo(MachineModuleInfo &&MMI) - : TM(std::move(MMI.TM)), - Context(MMI.TM.getTargetTriple(), MMI.TM.getMCAsmInfo(), - MMI.TM.getMCRegisterInfo(), MMI.TM.getMCSubtargetInfo(), nullptr, - nullptr, false), - MachineFunctions(std::move(MMI.MachineFunctions)) { - Context.setObjectFileInfo(MMI.TM.getObjFileLowering()); - ObjFileMMI = MMI.ObjFileMMI; - CurCallSite = MMI.CurCallSite; - UsesMSVCFloatingPoint = MMI.UsesMSVCFloatingPoint; - UsesMorestackAddr = MMI.UsesMorestackAddr; - HasSplitStack = MMI.HasSplitStack; - HasNosplitStack = MMI.HasNosplitStack; - AddrLabelSymbols = MMI.AddrLabelSymbols; - ExternalContext = MMI.ExternalContext; - TheModule = MMI.TheModule; -} - -MachineModuleInfo::MachineModuleInfo(const LLVMTargetMachine *TM) - : TM(*TM), Context(TM->getTargetTriple(), TM->getMCAsmInfo(), - TM->getMCRegisterInfo(), TM->getMCSubtargetInfo(), - nullptr, nullptr, false) { - Context.setObjectFileInfo(TM->getObjFileLowering()); - initialize(); -} - -MachineModuleInfo::MachineModuleInfo(const LLVMTargetMachine *TM, - MCContext *ExtContext) - : TM(*TM), Context(TM->getTargetTriple(), TM->getMCAsmInfo(), - TM->getMCRegisterInfo(), TM->getMCSubtargetInfo(), - nullptr, nullptr, false), - ExternalContext(ExtContext) { - Context.setObjectFileInfo(TM->getObjFileLowering()); - initialize(); -} - -MachineModuleInfo::~MachineModuleInfo() { finalize(); } - -//===- Address of Block Management ----------------------------------------===// - -ArrayRef<MCSymbol *> -MachineModuleInfo::getAddrLabelSymbolToEmit(const BasicBlock *BB) { - // Lazily create AddrLabelSymbols. - if (!AddrLabelSymbols) - AddrLabelSymbols = new MMIAddrLabelMap(getContext()); - return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB)); -} - -void MachineModuleInfo:: -takeDeletedSymbolsForFunction(const Function *F, - std::vector<MCSymbol*> &Result) { - // If no blocks have had their addresses taken, we're done. - if (!AddrLabelSymbols) return; - return AddrLabelSymbols-> - takeDeletedSymbolsForFunction(const_cast<Function*>(F), Result); -} - -/// \name Exception Handling -/// \{ - -void MachineModuleInfo::addPersonality(const Function *Personality) { - if (!llvm::is_contained(Personalities, Personality)) - Personalities.push_back(Personality); -} - -/// \} - -MachineFunction * -MachineModuleInfo::getMachineFunction(const Function &F) const { - auto I = MachineFunctions.find(&F); - return I != MachineFunctions.end() ? I->second.get() : nullptr; -} - -MachineFunction &MachineModuleInfo::getOrCreateMachineFunction(Function &F) { - // Shortcut for the common case where a sequence of MachineFunctionPasses - // all query for the same Function. - if (LastRequest == &F) - return *LastResult; - - auto I = MachineFunctions.insert( - std::make_pair(&F, std::unique_ptr<MachineFunction>())); - MachineFunction *MF; - if (I.second) { - // No pre-existing machine function, create a new one. - const TargetSubtargetInfo &STI = *TM.getSubtargetImpl(F); - MF = new MachineFunction(F, TM, STI, NextFnNum++, *this); - // Update the set entry. - I.first->second.reset(MF); - } else { - MF = I.first->second.get(); - } - - LastRequest = &F; - LastResult = MF; - return *MF; -} - -void MachineModuleInfo::deleteMachineFunctionFor(Function &F) { - MachineFunctions.erase(&F); - LastRequest = nullptr; - LastResult = nullptr; -} - -namespace { - -/// This pass frees the MachineFunction object associated with a Function. -class FreeMachineFunction : public FunctionPass { -public: - static char ID; - - FreeMachineFunction() : FunctionPass(ID) {} - - void getAnalysisUsage(AnalysisUsage &AU) const override { - AU.addRequired<MachineModuleInfoWrapperPass>(); - AU.addPreserved<MachineModuleInfoWrapperPass>(); - } - - bool runOnFunction(Function &F) override { - MachineModuleInfo &MMI = - getAnalysis<MachineModuleInfoWrapperPass>().getMMI(); - MMI.deleteMachineFunctionFor(F); - return true; - } - - StringRef getPassName() const override { - return "Free MachineFunction"; - } -}; - -} // end anonymous namespace - -char FreeMachineFunction::ID; - -FunctionPass *llvm::createFreeMachineFunctionPass() { - return new FreeMachineFunction(); -} - -MachineModuleInfoWrapperPass::MachineModuleInfoWrapperPass( - const LLVMTargetMachine *TM) - : ImmutablePass(ID), MMI(TM) { - initializeMachineModuleInfoWrapperPassPass(*PassRegistry::getPassRegistry()); -} - -MachineModuleInfoWrapperPass::MachineModuleInfoWrapperPass( - const LLVMTargetMachine *TM, MCContext *ExtContext) - : ImmutablePass(ID), MMI(TM, ExtContext) { - initializeMachineModuleInfoWrapperPassPass(*PassRegistry::getPassRegistry()); -} - -// Handle the Pass registration stuff necessary to use DataLayout's. -INITIALIZE_PASS(MachineModuleInfoWrapperPass, "machinemoduleinfo", - "Machine Module Information", false, false) -char MachineModuleInfoWrapperPass::ID = 0; - -static unsigned getLocCookie(const SMDiagnostic &SMD, const SourceMgr &SrcMgr, - std::vector<const MDNode *> &LocInfos) { - // Look up a LocInfo for the buffer this diagnostic is coming from. - unsigned BufNum = SrcMgr.FindBufferContainingLoc(SMD.getLoc()); - const MDNode *LocInfo = nullptr; - if (BufNum > 0 && BufNum <= LocInfos.size()) - LocInfo = LocInfos[BufNum - 1]; - - // If the inline asm had metadata associated with it, pull out a location - // cookie corresponding to which line the error occurred on. - unsigned LocCookie = 0; - if (LocInfo) { - unsigned ErrorLine = SMD.getLineNo() - 1; - if (ErrorLine >= LocInfo->getNumOperands()) - ErrorLine = 0; - - if (LocInfo->getNumOperands() != 0) - if (const ConstantInt *CI = - mdconst::dyn_extract<ConstantInt>(LocInfo->getOperand(ErrorLine))) - LocCookie = CI->getZExtValue(); - } - - return LocCookie; -} - -bool MachineModuleInfoWrapperPass::doInitialization(Module &M) { - MMI.initialize(); - MMI.TheModule = &M; - // FIXME: Do this for new pass manager. - LLVMContext &Ctx = M.getContext(); - MMI.getContext().setDiagnosticHandler( - [&Ctx, &M](const SMDiagnostic &SMD, bool IsInlineAsm, - const SourceMgr &SrcMgr, - std::vector<const MDNode *> &LocInfos) { - unsigned LocCookie = 0; - if (IsInlineAsm) - LocCookie = getLocCookie(SMD, SrcMgr, LocInfos); - Ctx.diagnose( - DiagnosticInfoSrcMgr(SMD, M.getName(), IsInlineAsm, LocCookie)); - }); - MMI.DbgInfoAvailable = !M.debug_compile_units().empty(); - return false; -} - -bool MachineModuleInfoWrapperPass::doFinalization(Module &M) { - MMI.finalize(); - return false; -} - -AnalysisKey MachineModuleAnalysis::Key; - -MachineModuleInfo MachineModuleAnalysis::run(Module &M, - ModuleAnalysisManager &) { - MachineModuleInfo MMI(TM); - MMI.TheModule = &M; - MMI.DbgInfoAvailable = !M.debug_compile_units().empty(); - return MMI; -} |