diff options
Diffstat (limited to 'include/llvm/Support/GraphWriter.h')
| -rw-r--r-- | include/llvm/Support/GraphWriter.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h index 62547ddf0cef..2f02aa7a1c19 100644 --- a/include/llvm/Support/GraphWriter.h +++ b/include/llvm/Support/GraphWriter.h @@ -50,7 +50,7 @@ namespace GraphProgram { }; } -void DisplayGraph(StringRef Filename, bool wait = true, +bool DisplayGraph(StringRef Filename, bool wait = true, GraphProgram::Name program = GraphProgram::DOT); template<typename GraphType> @@ -259,8 +259,8 @@ public: /// emitSimpleNode - Outputs a simple (non-record) node void emitSimpleNode(const void *ID, const std::string &Attr, - const std::string &Label, unsigned NumEdgeSources = 0, - const std::vector<std::string> *EdgeSourceLabels = 0) { + const std::string &Label, unsigned NumEdgeSources = 0, + const std::vector<std::string> *EdgeSourceLabels = nullptr) { O << "\tNode" << ID << "[ "; if (!Attr.empty()) O << Attr << ","; @@ -325,7 +325,10 @@ template <typename GraphType> std::string WriteGraph(const GraphType &G, const Twine &Name, bool ShortNames = false, const Twine &Title = "") { int FD; - std::string Filename = createGraphFilename(Name, FD); + // Windows can't always handle long paths, so limit the length of the name. + std::string N = Name.str(); + N = N.substr(0, std::min<std::size_t>(N.size(), 140)); + std::string Filename = createGraphFilename(N, FD); raw_fd_ostream O(FD, /*shouldClose=*/ true); if (FD == -1) { |