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diff --git a/linux-x64/clang/include/llvm/CodeGen/MachineJumpTableInfo.h b/linux-x64/clang/include/llvm/CodeGen/MachineJumpTableInfo.h
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+//===-- CodeGen/MachineJumpTableInfo.h - Abstract Jump Tables --*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// The MachineJumpTableInfo class keeps track of jump tables referenced by
+// lowered switch instructions in the MachineFunction.
+//
+// Instructions reference the address of these jump tables through the use of
+// MO_JumpTableIndex values. When emitting assembly or machine code, these
+// virtual address references are converted to refer to the address of the
+// function jump tables.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_MACHINEJUMPTABLEINFO_H
+#define LLVM_CODEGEN_MACHINEJUMPTABLEINFO_H
+
+#include "llvm/Support/Printable.h"
+#include <cassert>
+#include <vector>
+
+namespace llvm {
+
+class MachineBasicBlock;
+class DataLayout;
+class raw_ostream;
+
+/// MachineJumpTableEntry - One jump table in the jump table info.
+///
+struct MachineJumpTableEntry {
+ /// MBBs - The vector of basic blocks from which to create the jump table.
+ std::vector<MachineBasicBlock*> MBBs;
+
+ explicit MachineJumpTableEntry(const std::vector<MachineBasicBlock*> &M)
+ : MBBs(M) {}
+};
+
+class MachineJumpTableInfo {
+public:
+ /// JTEntryKind - This enum indicates how each entry of the jump table is
+ /// represented and emitted.
+ enum JTEntryKind {
+ /// EK_BlockAddress - Each entry is a plain address of block, e.g.:
+ /// .word LBB123
+ EK_BlockAddress,
+
+ /// EK_GPRel64BlockAddress - Each entry is an address of block, encoded
+ /// with a relocation as gp-relative, e.g.:
+ /// .gpdword LBB123
+ EK_GPRel64BlockAddress,
+
+ /// EK_GPRel32BlockAddress - Each entry is an address of block, encoded
+ /// with a relocation as gp-relative, e.g.:
+ /// .gprel32 LBB123
+ EK_GPRel32BlockAddress,
+
+ /// EK_LabelDifference32 - Each entry is the address of the block minus
+ /// the address of the jump table. This is used for PIC jump tables where
+ /// gprel32 is not supported. e.g.:
+ /// .word LBB123 - LJTI1_2
+ /// If the .set directive is supported, this is emitted as:
+ /// .set L4_5_set_123, LBB123 - LJTI1_2
+ /// .word L4_5_set_123
+ EK_LabelDifference32,
+
+ /// EK_Inline - Jump table entries are emitted inline at their point of
+ /// use. It is the responsibility of the target to emit the entries.
+ EK_Inline,
+
+ /// EK_Custom32 - Each entry is a 32-bit value that is custom lowered by the
+ /// TargetLowering::LowerCustomJumpTableEntry hook.
+ EK_Custom32
+ };
+private:
+ JTEntryKind EntryKind;
+ std::vector<MachineJumpTableEntry> JumpTables;
+public:
+ explicit MachineJumpTableInfo(JTEntryKind Kind): EntryKind(Kind) {}
+
+ JTEntryKind getEntryKind() const { return EntryKind; }
+
+ /// getEntrySize - Return the size of each entry in the jump table.
+ unsigned getEntrySize(const DataLayout &TD) const;
+ /// getEntryAlignment - Return the alignment of each entry in the jump table.
+ unsigned getEntryAlignment(const DataLayout &TD) const;
+
+ /// createJumpTableIndex - Create a new jump table.
+ ///
+ unsigned createJumpTableIndex(const std::vector<MachineBasicBlock*> &DestBBs);
+
+ /// isEmpty - Return true if there are no jump tables.
+ ///
+ bool isEmpty() const { return JumpTables.empty(); }
+
+ const std::vector<MachineJumpTableEntry> &getJumpTables() const {
+ return JumpTables;
+ }
+
+ /// RemoveJumpTable - Mark the specific index as being dead. This will
+ /// prevent it from being emitted.
+ void RemoveJumpTable(unsigned Idx) {
+ JumpTables[Idx].MBBs.clear();
+ }
+
+ /// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update
+ /// the jump tables to branch to New instead.
+ bool ReplaceMBBInJumpTables(MachineBasicBlock *Old, MachineBasicBlock *New);
+
+ /// ReplaceMBBInJumpTable - If Old is a target of the jump tables, update
+ /// the jump table to branch to New instead.
+ bool ReplaceMBBInJumpTable(unsigned Idx, MachineBasicBlock *Old,
+ MachineBasicBlock *New);
+
+ /// print - Used by the MachineFunction printer to print information about
+ /// jump tables. Implemented in MachineFunction.cpp
+ ///
+ void print(raw_ostream &OS) const;
+
+ /// dump - Call to stderr.
+ ///
+ void dump() const;
+};
+
+
+/// Prints a jump table entry reference.
+///
+/// The format is:
+/// %jump-table.5 - a jump table entry with index == 5.
+///
+/// Usage: OS << printJumpTableEntryReference(Idx) << '\n';
+Printable printJumpTableEntryReference(unsigned Idx);
+
+} // End llvm namespace
+
+#endif