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Diffstat (limited to 'contrib/llvm/tools/opt/GraphPrinters.cpp')
-rw-r--r-- | contrib/llvm/tools/opt/GraphPrinters.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/contrib/llvm/tools/opt/GraphPrinters.cpp b/contrib/llvm/tools/opt/GraphPrinters.cpp new file mode 100644 index 0000000..f271966 --- /dev/null +++ b/contrib/llvm/tools/opt/GraphPrinters.cpp @@ -0,0 +1,47 @@ +//===- GraphPrinters.cpp - DOT printers for various graph types -----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines several printers for various different types of graphs used +// by the LLVM infrastructure. It uses the generic graph interface to convert +// the graph into a .dot graph. These graphs can then be processed with the +// "dot" tool to convert them to postscript or some other suitable format. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Analysis/Dominators.h" +#include "llvm/Pass.h" + +using namespace llvm; + +//===----------------------------------------------------------------------===// +// DomInfoPrinter Pass +//===----------------------------------------------------------------------===// + +namespace { + class DomInfoPrinter : public FunctionPass { + public: + static char ID; // Pass identification, replacement for typeid + DomInfoPrinter() : FunctionPass(ID) {} + + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesAll(); + AU.addRequired<DominatorTree>(); + + } + + virtual bool runOnFunction(Function &F) { + getAnalysis<DominatorTree>().dump(); + return false; + } + }; +} + +char DomInfoPrinter::ID = 0; +static RegisterPass<DomInfoPrinter> +DIP("print-dom-info", "Dominator Info Printer", true, true); |