summaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h
diff options
context:
space:
mode:
authorrobot-piglet <[email protected]>2025-03-05 13:38:11 +0300
committerrobot-piglet <[email protected]>2025-03-05 13:49:53 +0300
commit9eed360f02de773a5ed2de5d2a3e81fc7f06acfa (patch)
tree744a4054e64eb443073c7c6ad36b29cedcf9c2e6 /contrib/libs/llvm14/include/llvm/CodeGen/MachineModuleInfo.h
parentc141a5c40bda2eed1a68b0626ffdae5fd19359a6 (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.h326
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