diff options
Diffstat (limited to 'lib/Support/GraphWriter.cpp')
| -rw-r--r-- | lib/Support/GraphWriter.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Support/GraphWriter.cpp b/lib/Support/GraphWriter.cpp index 669c238..bff182f 100644 --- a/lib/Support/GraphWriter.cpp +++ b/lib/Support/GraphWriter.cpp @@ -53,6 +53,17 @@ std::string llvm::DOT::EscapeString(const std::string &Label) { return Str; } +/// \brief Get a color string for this node number. Simply round-robin selects +/// from a reasonable number of colors. +StringRef llvm::DOT::getColorString(unsigned ColorNumber) { + static const int NumColors = 20; + static const char* Colors[NumColors] = { + "aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa", + "555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff", + "ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"}; + return Colors[ColorNumber % NumColors]; +} + // Execute the graph viewer. Return true if successful. static bool LLVM_ATTRIBUTE_UNUSED ExecGraphViewer(const sys::Path &ExecPath, std::vector<const char*> &args, |