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C++ GlobalValue::materialize方法代码示例

本文整理汇总了C++中GlobalValue::materialize方法的典型用法代码示例。如果您正苦于以下问题:C++ GlobalValue::materialize方法的具体用法?C++ GlobalValue::materialize怎么用?C++ GlobalValue::materialize使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GlobalValue的用法示例。


在下文中一共展示了GlobalValue::materialize方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: main


//.........这里部分代码省略.........
    }
  }

  // Figure out which functions we should extract.
  for (size_t i = 0, e = ExtractFuncs.size(); i != e; ++i) {
    GlobalValue *GV = M->getFunction(ExtractFuncs[i]);
    if (!GV) {
      errs() << argv[0] << ": program doesn't contain function named '"
             << ExtractFuncs[i] << "'!\n";
      return 1;
    }
    GVs.insert(GV);
  }
  // Extract functions via regular expression matching.
  for (size_t i = 0, e = ExtractRegExpFuncs.size(); i != e; ++i) {
    std::string Error;
    StringRef RegExStr = ExtractRegExpFuncs[i];
    Regex RegEx(RegExStr);
    if (!RegEx.isValid(Error)) {
      errs() << argv[0] << ": '" << ExtractRegExpFuncs[i] << "' "
        "invalid regex: " << Error;
    }
    bool match = false;
    for (Module::iterator F = M->begin(), E = M->end(); F != E;
         F++) {
      if (RegEx.match(F->getName())) {
        GVs.insert(&*F);
        match = true;
      }
    }
    if (!match) {
      errs() << argv[0] << ": program doesn't contain global named '"
             << ExtractRegExpFuncs[i] << "'!\n";
      return 1;
    }
  }

  // Materialize requisite global values.
  if (!DeleteFn)
    for (size_t i = 0, e = GVs.size(); i != e; ++i) {
      GlobalValue *GV = GVs[i];
      if (std::error_code EC = GV->materialize()) {
        errs() << argv[0] << ": error reading input: " << EC.message() << "\n";
        return 1;
      }
    }
  else {
    // Deleting. Materialize every GV that's *not* in GVs.
    SmallPtrSet<GlobalValue *, 8> GVSet(GVs.begin(), GVs.end());
    for (auto &G : M->globals()) {
      if (!GVSet.count(&G)) {
        if (std::error_code EC = G.materialize()) {
          errs() << argv[0] << ": error reading input: " << EC.message()
                 << "\n";
          return 1;
        }
      }
    }
    for (auto &F : *M) {
      if (!GVSet.count(&F)) {
        if (std::error_code EC = F.materialize()) {
          errs() << argv[0] << ": error reading input: " << EC.message()
                 << "\n";
          return 1;
        }
      }
    }
  }

  // In addition to deleting all other functions, we also want to spiff it
  // up a little bit.  Do this now.
  legacy::PassManager Passes;

  std::vector<GlobalValue*> Gvs(GVs.begin(), GVs.end());

  Passes.add(createGVExtractionPass(Gvs, DeleteFn));
  if (!DeleteFn)
    Passes.add(createGlobalDCEPass());           // Delete unreachable globals
  Passes.add(createStripDeadDebugInfoPass());    // Remove dead debug info
  Passes.add(createStripDeadPrototypesPass());   // Remove dead func decls

  std::error_code EC;
  tool_output_file Out(OutputFilename, EC, sys::fs::F_None);
  if (EC) {
    errs() << EC.message() << '\n';
    return 1;
  }

  if (OutputAssembly)
    Passes.add(createPrintModulePass(Out.os()));
  else if (Force || !CheckBitcodeOutputToConsole(Out.os(), true))
    Passes.add(createBitcodeWriterPass(Out.os()));

  Passes.run(*M.get());

  // Declare success.
  Out.keep();

  return 0;
}
开发者ID:FulcronZ,项目名称:NyuziToolchain,代码行数:101,代码来源:llvm-extract.cpp


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