diff options
| author | robot-piglet <[email protected]> | 2025-03-05 13:38:11 +0300 |
|---|---|---|
| committer | robot-piglet <[email protected]> | 2025-03-05 13:49:53 +0300 |
| commit | 9eed360f02de773a5ed2de5d2a3e81fc7f06acfa (patch) | |
| tree | 744a4054e64eb443073c7c6ad36b29cedcf9c2e6 /contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h | |
| parent | c141a5c40bda2eed1a68b0626ffdae5fd19359a6 (diff) | |
Intermediate changes
commit_hash:2ec2671384dd8e604d41bc5c52c2f7858e4afea6
Diffstat (limited to 'contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h')
| -rw-r--r-- | contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h | 326 |
1 files changed, 0 insertions, 326 deletions
diff --git a/contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h b/contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h deleted file mode 100644 index 9e3c61a3687..00000000000 --- a/contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h +++ /dev/null @@ -1,326 +0,0 @@ -#pragma once - -#ifdef __GNUC__ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wunused-parameter" -#endif - -//===-- llvm/CodeGen/MachineModuleInfo.h ------------------------*- 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 -// -//===----------------------------------------------------------------------===// -// -// Collect meta information for a module. This information should be in a -// neutral form that can be used by different debugging and exception handling -// schemes. -// -// The organization of information is primarily clustered around the source -// compile units. The main exception is source line correspondence where -// inlining may interleave code from various compile units. -// -// The following information can be retrieved from the MachineModuleInfo. -// -// -- Source directories - Directories are uniqued based on their canonical -// string and assigned a sequential numeric ID (base 1.) -// -- Source files - Files are also uniqued based on their name and directory -// ID. A file ID is sequential number (base 1.) -// -- Source line correspondence - A vector of file ID, line#, column# triples. -// A DEBUG_LOCATION instruction is generated by the DAG Legalizer -// corresponding to each entry in the source line list. This allows a debug -// emitter to generate labels referenced by debug information tables. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CODEGEN_MACHINEMODULEINFO_H -#define LLVM_CODEGEN_MACHINEMODULEINFO_H - -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/PointerIntPair.h" -#include "llvm/IR/PassManager.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCSymbol.h" -#include "llvm/Pass.h" -#include <memory> -#include <utility> -#include <vector> - -namespace llvm { - -class BasicBlock; -class Function; -class LLVMTargetMachine; -class MMIAddrLabelMap; -class MachineFunction; -class Module; - -//===----------------------------------------------------------------------===// -/// This class can be derived from and used by targets to hold private -/// target-specific information for each Module. Objects of type are -/// accessed/created with MachineModuleInfo::getObjFileInfo and destroyed when -/// the MachineModuleInfo is destroyed. -/// -class MachineModuleInfoImpl { -public: - using StubValueTy = PointerIntPair<MCSymbol *, 1, bool>; - using SymbolListTy = std::vector<std::pair<MCSymbol *, StubValueTy>>; - - virtual ~MachineModuleInfoImpl(); - -protected: - /// Return the entries from a DenseMap in a deterministic sorted orer. - /// Clears the map. - static SymbolListTy getSortedStubs(DenseMap<MCSymbol*, StubValueTy>&); -}; - -//===----------------------------------------------------------------------===// -/// This class contains meta information specific to a module. Queries can be -/// made by different debugging and exception handling schemes and reformated -/// for specific use. -/// -class MachineModuleInfo { - friend class MachineModuleInfoWrapperPass; - friend class MachineModuleAnalysis; - - const LLVMTargetMachine &TM; - - /// This is the MCContext used for the entire code generator. - MCContext Context; - // This is an external context, that if assigned, will be used instead of the - // internal context. - MCContext *ExternalContext = nullptr; - - /// This is the LLVM Module being worked on. - const Module *TheModule; - - /// This is the object-file-format-specific implementation of - /// MachineModuleInfoImpl, which lets targets accumulate whatever info they - /// want. - MachineModuleInfoImpl *ObjFileMMI; - - /// \name Exception Handling - /// \{ - - /// Vector of all personality functions ever seen. Used to emit common EH - /// frames. - std::vector<const Function *> Personalities; - - /// The current call site index being processed, if any. 0 if none. - unsigned CurCallSite; - - /// \} - - /// This map keeps track of which symbol is being used for the specified - /// basic block's address of label. - MMIAddrLabelMap *AddrLabelSymbols; - - // TODO: Ideally, what we'd like is to have a switch that allows emitting - // synchronous (precise at call-sites only) CFA into .eh_frame. However, - // even under this switch, we'd like .debug_frame to be precise when using - // -g. At this moment, there's no way to specify that some CFI directives - // go into .eh_frame only, while others go into .debug_frame only. - - /// True if debugging information is available in this module. - bool DbgInfoAvailable; - - /// True if this module is being built for windows/msvc, and uses floating - /// point. This is used to emit an undefined reference to _fltused. - bool UsesMSVCFloatingPoint; - - /// True if the module calls the __morestack function indirectly, as is - /// required under the large code model on x86. This is used to emit - /// a definition of a symbol, __morestack_addr, containing the address. See - /// comments in lib/Target/X86/X86FrameLowering.cpp for more details. - bool UsesMorestackAddr; - - /// True if the module contains split-stack functions. This is used to - /// emit .note.GNU-split-stack section as required by the linker for - /// special handling split-stack function calling no-split-stack function. - bool HasSplitStack; - - /// True if the module contains no-split-stack functions. This is used to - /// emit .note.GNU-no-split-stack section when it also contains split-stack - /// functions. - bool HasNosplitStack; - - /// Maps IR Functions to their corresponding MachineFunctions. - DenseMap<const Function*, std::unique_ptr<MachineFunction>> MachineFunctions; - /// Next unique number available for a MachineFunction. - unsigned NextFnNum = 0; - const Function *LastRequest = nullptr; ///< Used for shortcut/cache. - MachineFunction *LastResult = nullptr; ///< Used for shortcut/cache. - - MachineModuleInfo &operator=(MachineModuleInfo &&MMII) = delete; - -public: - explicit MachineModuleInfo(const LLVMTargetMachine *TM = nullptr); - - explicit MachineModuleInfo(const LLVMTargetMachine *TM, - MCContext *ExtContext); - - MachineModuleInfo(MachineModuleInfo &&MMII); - - ~MachineModuleInfo(); - - void initialize(); - void finalize(); - - const LLVMTargetMachine &getTarget() const { return TM; } - - const MCContext &getContext() const { - return ExternalContext ? *ExternalContext : Context; - } - MCContext &getContext() { - return ExternalContext ? *ExternalContext : Context; - } - - const Module *getModule() const { return TheModule; } - - /// Returns the MachineFunction constructed for the IR function \p F. - /// Creates a new MachineFunction if none exists yet. - MachineFunction &getOrCreateMachineFunction(Function &F); - - /// \brief Returns the MachineFunction associated to IR function \p F if there - /// is one, otherwise nullptr. - MachineFunction *getMachineFunction(const Function &F) const; - - /// Delete the MachineFunction \p MF and reset the link in the IR Function to - /// Machine Function map. - void deleteMachineFunctionFor(Function &F); - - /// Keep track of various per-module pieces of information for backends - /// that would like to do so. - template<typename Ty> - Ty &getObjFileInfo() { - if (ObjFileMMI == nullptr) - ObjFileMMI = new Ty(*this); - return *static_cast<Ty*>(ObjFileMMI); - } - - template<typename Ty> - const Ty &getObjFileInfo() const { - return const_cast<MachineModuleInfo*>(this)->getObjFileInfo<Ty>(); - } - - /// Returns true if valid debug info is present. - bool hasDebugInfo() const { return DbgInfoAvailable; } - void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; } - - bool usesMSVCFloatingPoint() const { return UsesMSVCFloatingPoint; } - - void setUsesMSVCFloatingPoint(bool b) { UsesMSVCFloatingPoint = b; } - - bool usesMorestackAddr() const { - return UsesMorestackAddr; - } - - void setUsesMorestackAddr(bool b) { - UsesMorestackAddr = b; - } - - bool hasSplitStack() const { - return HasSplitStack; - } - - void setHasSplitStack(bool b) { - HasSplitStack = b; - } - - bool hasNosplitStack() const { - return HasNosplitStack; - } - - void setHasNosplitStack(bool b) { - HasNosplitStack = b; - } - - /// Return the symbol to be used for the specified basic block when its - /// address is taken. This cannot be its normal LBB label because the block - /// may be accessed outside its containing function. - MCSymbol *getAddrLabelSymbol(const BasicBlock *BB) { - return getAddrLabelSymbolToEmit(BB).front(); - } - - /// Return the symbol to be used for the specified basic block when its - /// address is taken. If other blocks were RAUW'd to this one, we may have - /// to emit them as well, return the whole set. - ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(const BasicBlock *BB); - - /// If the specified function has had any references to address-taken blocks - /// generated, but the block got deleted, return the symbol now so we can - /// emit it. This prevents emitting a reference to a symbol that has no - /// definition. - void takeDeletedSymbolsForFunction(const Function *F, - std::vector<MCSymbol*> &Result); - - /// \name Exception Handling - /// \{ - - /// Set the call site currently being processed. - void setCurrentCallSite(unsigned Site) { CurCallSite = Site; } - - /// Get the call site currently being processed, if any. return zero if - /// none. - unsigned getCurrentCallSite() { return CurCallSite; } - - /// Provide the personality function for the exception information. - void addPersonality(const Function *Personality); - - /// Return array of personality functions ever seen. - const std::vector<const Function *>& getPersonalities() const { - return Personalities; - } - /// \} - - // MMI owes MCContext. It should never be invalidated. - bool invalidate(Module &, const PreservedAnalyses &, - ModuleAnalysisManager::Invalidator &) { - return false; - } -}; // End class MachineModuleInfo - -class MachineModuleInfoWrapperPass : public ImmutablePass { - MachineModuleInfo MMI; - -public: - static char ID; // Pass identification, replacement for typeid - explicit MachineModuleInfoWrapperPass(const LLVMTargetMachine *TM = nullptr); - - explicit MachineModuleInfoWrapperPass(const LLVMTargetMachine *TM, - MCContext *ExtContext); - - // Initialization and Finalization - bool doInitialization(Module &) override; - bool doFinalization(Module &) override; - - MachineModuleInfo &getMMI() { return MMI; } - const MachineModuleInfo &getMMI() const { return MMI; } -}; - -/// An analysis that produces \c MachineInfo for a module. -class MachineModuleAnalysis : public AnalysisInfoMixin<MachineModuleAnalysis> { - friend AnalysisInfoMixin<MachineModuleAnalysis>; - static AnalysisKey Key; - - const LLVMTargetMachine *TM; - -public: - /// Provide the result type for this analysis pass. - using Result = MachineModuleInfo; - - MachineModuleAnalysis(const LLVMTargetMachine *TM) : TM(TM) {} - - /// Run the analysis pass and produce machine module information. - MachineModuleInfo run(Module &M, ModuleAnalysisManager &); -}; - -} // end namespace llvm - -#endif // LLVM_CODEGEN_MACHINEMODULEINFO_H - -#ifdef __GNUC__ -#pragma GCC diagnostic pop -#endif |
