diff options
Diffstat (limited to 'include/llvm/Analysis/CFGPrinter.h')
| -rw-r--r-- | include/llvm/Analysis/CFGPrinter.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/include/llvm/Analysis/CFGPrinter.h b/include/llvm/Analysis/CFGPrinter.h index 6977374088..39e90eb96a 100644 --- a/include/llvm/Analysis/CFGPrinter.h +++ b/include/llvm/Analysis/CFGPrinter.h @@ -46,6 +46,7 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits { static std::string getCompleteNodeLabel(const BasicBlock *Node, const Function *) { + enum { MaxColumns = 80 }; std::string Str; raw_string_ostream OS(Str); @@ -59,16 +60,32 @@ struct DOTGraphTraits<const Function*> : public DefaultDOTGraphTraits { if (OutStr[0] == '\n') OutStr.erase(OutStr.begin()); // Process string output to make it nicer... - for (unsigned i = 0; i != OutStr.length(); ++i) + unsigned ColNum = 0; + unsigned LastSpace = 0; + for (unsigned i = 0; i != OutStr.length(); ++i) { if (OutStr[i] == '\n') { // Left justify OutStr[i] = '\\'; OutStr.insert(OutStr.begin()+i+1, 'l'); + ColNum = 0; + LastSpace = 0; } else if (OutStr[i] == ';') { // Delete comments! unsigned Idx = OutStr.find('\n', i+1); // Find end of line OutStr.erase(OutStr.begin()+i, OutStr.begin()+Idx); --i; + } else if (ColNum == MaxColumns) { // Wrap lines. + if (LastSpace) { + OutStr.insert(LastSpace, "\\l..."); + ColNum = i - LastSpace; + LastSpace = 0; + i += 3; // The loop will advance 'i' again. + } + // Else keep trying to find a space. } - + else + ++ColNum; + if (OutStr[i] == ' ') + LastSpace = i; + } return OutStr; } |