diff --git a/bolt/lib/Core/BinaryFunction.cpp b/bolt/lib/Core/BinaryFunction.cpp --- a/bolt/lib/Core/BinaryFunction.cpp +++ b/bolt/lib/Core/BinaryFunction.cpp @@ -3045,15 +3045,33 @@ } // namespace void BinaryFunction::dumpGraph(raw_ostream &OS) const { - OS << "digraph \"" << getPrintName() << "\" {\n"; - OS << R"(node [fontname="courier"])" << '\n'; + OS << "digraph \"" << getPrintName() << "\" {\n" + << "node [fontname=courier, shape=box, style=filled, colorscheme=brbg9]\n"; uint64_t Offset = Address; for (BinaryBasicBlock *BB : BasicBlocks) { auto LayoutPos = std::find(BasicBlocksLayout.begin(), BasicBlocksLayout.end(), BB); unsigned Layout = LayoutPos - BasicBlocksLayout.begin(); const char *ColdStr = BB->isCold() ? " (cold)" : ""; - OS << format("\"%s\" [shape=box]\n", BB->getName().data()); + std::vector Attrs; + // Bold box for entry points + if (isEntryPoint(*BB)) + Attrs.push_back("penwidth=2"); + if (BLI && BLI->getLoopFor(BB)) { + // Distinguish innermost loops + const BinaryLoop *Loop = BLI->getLoopFor(BB); + if (Loop->isInnermost()) + Attrs.push_back("fillcolor=6"); + else // some outer loop + Attrs.push_back("fillcolor=4"); + } else { // non-loopy code + Attrs.push_back("fillcolor=5"); + } + ListSeparator LS; + OS << "\"" << BB->getName() << "\" ["; + for (StringRef Attr : Attrs) + OS << LS << Attr; + OS << "]\n"; OS << format("\"%s\" [label=\"%s%s\\n(C:%lu,O:%lu,I:%u,L:%u,CFI:%u)\\n", BB->getName().data(), BB->getName().data(), ColdStr, BB->getKnownExecutionCount(), BB->getOffset(), getIndex(BB),