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      1 //===-- OrcTargetSupport.h - Code to support specific targets  --*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // Target specific code for Orc, e.g. callback assembly.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H
     15 #define LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H
     16 
     17 #include "IndirectionUtils.h"
     18 
     19 namespace llvm {
     20 namespace orc {
     21 
     22 class OrcX86_64 {
     23 public:
     24   static const char *ResolverBlockName;
     25 
     26   /// @brief Insert module-level inline callback asm into module M for the
     27   /// symbols managed by JITResolveCallbackHandler J.
     28   static void insertResolverBlock(Module &M,
     29                                   JITCompileCallbackManagerBase &JCBM);
     30 
     31   /// @brief Get a label name from the given index.
     32   typedef std::function<std::string(unsigned)> LabelNameFtor;
     33 
     34   /// @brief Insert the requested number of trampolines into the given module.
     35   /// @param M Module to insert the call block into.
     36   /// @param NumCalls Number of calls to create in the call block.
     37   /// @param StartIndex Optional argument specifying the index suffix to start
     38   ///                   with.
     39   /// @return A functor that provides the symbol name for each entry in the call
     40   ///         block.
     41   ///
     42   static LabelNameFtor insertCompileCallbackTrampolines(
     43                                                     Module &M,
     44                                                     TargetAddress TrampolineAddr,
     45                                                     unsigned NumCalls,
     46                                                     unsigned StartIndex = 0);
     47 
     48 };
     49 
     50 } // End namespace orc.
     51 } // End namespace llvm.
     52 
     53 #endif // LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H
     54