Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 72 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/Object/ModuleSymbolTable.h b/clang-r353983/include/llvm/Object/ModuleSymbolTable.h
new file mode 100644
index 00000000..4c582fbc
--- /dev/null
+++ b/clang-r353983/include/llvm/Object/ModuleSymbolTable.h
@@ -0,0 +1,72 @@
+//===- ModuleSymbolTable.h - symbol table for in-memory IR ------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This class represents a symbol table built from in-memory IR. It provides
+// access to GlobalValues and should only be used if such access is required
+// (e.g. in the LTO implementation).
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_MODULESYMBOLTABLE_H
+#define LLVM_OBJECT_MODULESYMBOLTABLE_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/PointerUnion.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/Object/SymbolicFile.h"
+#include "llvm/Support/Allocator.h"
+#include <cstdint>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace llvm {
+
+class GlobalValue;
+
+class ModuleSymbolTable {
+public:
+  using AsmSymbol = std::pair<std::string, uint32_t>;
+  using Symbol = PointerUnion<GlobalValue *, AsmSymbol *>;
+
+private:
+  Module *FirstMod = nullptr;
+
+  SpecificBumpPtrAllocator<AsmSymbol> AsmSymbols;
+  std::vector<Symbol> SymTab;
+  Mangler Mang;
+
+public:
+  ArrayRef<Symbol> symbols() const { return SymTab; }
+  void addModule(Module *M);
+
+  void printSymbolName(raw_ostream &OS, Symbol S) const;
+  uint32_t getSymbolFlags(Symbol S) const;
+
+  /// Parse inline ASM and collect the symbols that are defined or referenced in
+  /// the current module.
+  ///
+  /// For each found symbol, call \p AsmSymbol with the name of the symbol found
+  /// and the associated flags.
+  static void CollectAsmSymbols(
+      const Module &M,
+      function_ref<void(StringRef, object::BasicSymbolRef::Flags)> AsmSymbol);
+
+  /// Parse inline ASM and collect the symvers directives that are defined in
+  /// the current module.
+  ///
+  /// For each found symbol, call \p AsmSymver with the name of the symbol and
+  /// its alias.
+  static void
+  CollectAsmSymvers(const Module &M,
+                    function_ref<void(StringRef, StringRef)> AsmSymver);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_OBJECT_MODULESYMBOLTABLE_H