1 files changed, 82 insertions, 0 deletions
diff --git a/tools/opt/BreakpointPrinter.cpp b/tools/opt/BreakpointPrinter.cpp
new file mode 100644
index 0000000000..2b7f21893a
--- /dev/null
+++ b/tools/opt/BreakpointPrinter.cpp
@@ -0,0 +1,82 @@
+//===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Breakpoint location printer.
+///
+//===----------------------------------------------------------------------===//
+#include "BreakpointPrinter.h"
+#include "llvm/ADT/StringSet.h"
+#include "llvm/DebugInfo.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Pass.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+namespace {
+
+struct BreakpointPrinter : public ModulePass {
+  raw_ostream &Out;
+  static char ID;
+  DITypeIdentifierMap TypeIdentifierMap;
+
+  BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {}
+
+  void getContextName(DIDescriptor Context, std::string &N) {
+    if (Context.isNameSpace()) {
+      DINameSpace NS(Context);
+      if (!NS.getName().empty()) {
+        getContextName(NS.getContext(), N);
+        N = N + NS.getName().str() + "::";
+      }
+    } else if (Context.isType()) {
+      DIType TY(Context);
+      if (!TY.getName().empty()) {
+        getContextName(TY.getContext().resolve(TypeIdentifierMap), N);
+        N = N + TY.getName().str() + "::";
+      }
+    }
+  }
+
+  virtual bool runOnModule(Module &M) {
+    TypeIdentifierMap.clear();
+    NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
+    if (CU_Nodes)
+      TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
+
+    StringSet<> Processed;
+    if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
+      for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+        std::string Name;
+        DISubprogram SP(NMD->getOperand(i));
+        assert((!SP || SP.isSubprogram()) &&
+               "A MDNode in llvm.dbg.sp should be null or a DISubprogram.");
+        if (!SP)
+          continue;
+        getContextName(SP.getContext().resolve(TypeIdentifierMap), Name);
+        Name = Name + SP.getDisplayName().str();
+        if (!Name.empty() && Processed.insert(Name)) {
+          Out << Name << "\n";
+        }
+      }
+    return false;
+  }
+
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+  }
+};
+
+char BreakpointPrinter::ID = 0;
+}
+
+ModulePass *llvm::createBreakpointPrinter(raw_ostream &out) {
+  return new BreakpointPrinter(out);
+}