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https://github.com/c64scene-ar/llvm-6502.git
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b6fd95ab41
We would set the body of a struct type (therefore making it non-opaque) but were forgetting to move it to the non-opaque set. Fixes pr22807. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231442 91177308-0d34-0410-b5e6-96231b3b80d8
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
//===- Linker.h - Module Linker Interface -----------------------*- C++ -*-===//
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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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#ifndef LLVM_LINKER_LINKER_H
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#define LLVM_LINKER_LINKER_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/IR/DiagnosticInfo.h"
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namespace llvm {
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class Module;
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class StructType;
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class Type;
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/// This class provides the core functionality of linking in LLVM. It keeps a
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/// pointer to the merged module so far. It doesn't take ownership of the
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/// module since it is assumed that the user of this class will want to do
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/// something with it after the linking.
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class Linker {
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public:
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struct StructTypeKeyInfo {
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struct KeyTy {
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ArrayRef<Type *> ETypes;
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bool IsPacked;
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KeyTy(ArrayRef<Type *> E, bool P);
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KeyTy(const StructType *ST);
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bool operator==(const KeyTy &that) const;
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bool operator!=(const KeyTy &that) const;
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};
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static StructType *getEmptyKey();
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static StructType *getTombstoneKey();
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static unsigned getHashValue(const KeyTy &Key);
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static unsigned getHashValue(const StructType *ST);
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static bool isEqual(const KeyTy &LHS, const StructType *RHS);
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static bool isEqual(const StructType *LHS, const StructType *RHS);
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};
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typedef DenseSet<StructType *, StructTypeKeyInfo> NonOpaqueStructTypeSet;
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typedef DenseSet<StructType *> OpaqueStructTypeSet;
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struct IdentifiedStructTypeSet {
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// The set of opaque types is the composite module.
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OpaqueStructTypeSet OpaqueStructTypes;
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// The set of identified but non opaque structures in the composite module.
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NonOpaqueStructTypeSet NonOpaqueStructTypes;
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void addNonOpaque(StructType *Ty);
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void switchToNonOpaque(StructType *Ty);
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void addOpaque(StructType *Ty);
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StructType *findNonOpaque(ArrayRef<Type *> ETypes, bool IsPacked);
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bool hasType(StructType *Ty);
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};
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Linker(Module *M, DiagnosticHandlerFunction DiagnosticHandler);
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Linker(Module *M);
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~Linker();
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Module *getModule() const { return Composite; }
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void deleteModule();
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/// \brief Link \p Src into the composite. The source is destroyed.
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/// Returns true on error.
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bool linkInModule(Module *Src);
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/// \brief Set the composite to the passed-in module.
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void setModule(Module *Dst);
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static bool LinkModules(Module *Dest, Module *Src,
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DiagnosticHandlerFunction DiagnosticHandler);
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static bool LinkModules(Module *Dest, Module *Src);
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private:
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void init(Module *M, DiagnosticHandlerFunction DiagnosticHandler);
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Module *Composite;
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IdentifiedStructTypeSet IdentifiedStructTypes;
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DiagnosticHandlerFunction DiagnosticHandler;
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};
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} // End llvm namespace
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#endif
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