diff options
| -rw-r--r-- | llvm/include/llvm/IR/Dominators.h | 4 | ||||
| -rw-r--r-- | llvm/lib/Analysis/DomPrinter.cpp | 16 |
2 files changed, 20 insertions, 0 deletions
diff --git a/llvm/include/llvm/IR/Dominators.h b/llvm/include/llvm/IR/Dominators.h index cae03d33a7e..8f6c85f53ef 100644 --- a/llvm/include/llvm/IR/Dominators.h +++ b/llvm/include/llvm/IR/Dominators.h @@ -157,6 +157,10 @@ public: /// This should only be used for debugging as it aborts the program if the /// verification fails. void verifyDomTree() const; + + // Pop up a GraphViz/gv window with the Dominator Tree rendered using `dot`. + void viewGraph(const Twine &Name, const Twine &Title); + void viewGraph(); }; //===------------------------------------- diff --git a/llvm/lib/Analysis/DomPrinter.cpp b/llvm/lib/Analysis/DomPrinter.cpp index 7acfb41500d..8abc0e7d0df 100644 --- a/llvm/lib/Analysis/DomPrinter.cpp +++ b/llvm/lib/Analysis/DomPrinter.cpp @@ -80,6 +80,22 @@ struct DOTGraphTraits<PostDominatorTree*> }; } +void DominatorTree::viewGraph(const Twine &Name, const Twine &Title) { +#ifndef NDEBUG + ViewGraph(this, Name, false, Title); +#else + errs() << "DomTree dump not available, build with DEBUG\n"; +#endif // NDEBUG +} + +void DominatorTree::viewGraph() { +#ifndef NDEBUG + this->viewGraph("domtree", "Dominator Tree for function"); +#else + errs() << "DomTree dump not available, build with DEBUG\n"; +#endif // NDEBUG +} + namespace { struct DominatorTreeWrapperPassAnalysisGraphTraits { static DominatorTree *getGraph(DominatorTreeWrapperPass *DTWP) { |
