1 files changed, 45 insertions, 0 deletions

diff --git a/contrib/llvm-project/llvm/tools/opt/GraphPrinters.cpp b/contrib/llvm-project/llvm/tools/opt/GraphPrinters.cpp
new file mode 100644
index 000000000000..611fb20513c9
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+++ b/contrib/llvm-project/llvm/tools/opt/GraphPrinters.cpp
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+//===- GraphPrinters.cpp - DOT printers for various graph types -----------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// 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/IR/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) {}
+
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
+      AU.setPreservesAll();
+      AU.addRequired<DominatorTreeWrapperPass>();
+    }
+
+    bool runOnFunction(Function &F) override {
+      getAnalysis<DominatorTreeWrapperPass>().print(dbgs());
+      return false;
+    }
+  };
+}
+
+char DomInfoPrinter::ID = 0;
+static RegisterPass<DomInfoPrinter>
+DIP("print-dom-info", "Dominator Info Printer", true, true);