1 files changed, 54 insertions, 8 deletions

diff --git a/lib/Analysis/ModuleDebugInfoPrinter.cpp b/lib/Analysis/ModuleDebugInfoPrinter.cpp
index f645558..cbc4700 100644
--- a/lib/Analysis/ModuleDebugInfoPrinter.cpp
+++ b/lib/Analysis/ModuleDebugInfoPrinter.cpp
@@ -55,28 +55,74 @@ bool ModuleDebugInfoPrinter::runOnModule(Module &M) {
   return false;
 }
 
+static void printFile(raw_ostream &O, StringRef Filename, StringRef Directory,
+                      unsigned Line = 0) {
+  if (Filename.empty())
+    return;
+
+  O << " from ";
+  if (!Directory.empty())
+    O << Directory << "/";
+  O << Filename;
+  if (Line)
+    O << ":" << Line;
+}
+
 void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
+  // Printing the nodes directly isn't particularly helpful (since they
+  // reference other nodes that won't be printed, particularly for the
+  // filenames), so just print a few useful things.
   for (DICompileUnit CU : Finder.compile_units()) {
-    O << "Compile Unit: ";
-    CU.print(O);
+    O << "Compile unit: ";
+    if (const char *Lang = LanguageString(CU.getLanguage()))
+      O << Lang;
+    else
+      O << "unknown-language(" << CU.getLanguage() << ")";
+    printFile(O, CU.getFilename(), CU.getDirectory());
     O << '\n';
   }
 
   for (DISubprogram S : Finder.subprograms()) {
-    O << "Subprogram: ";
-    S.print(O);
+    O << "Subprogram: " << S.getName();
+    printFile(O, S.getFilename(), S.getDirectory(), S.getLineNumber());
+    if (!S.getLinkageName().empty())
+      O << " ('" << S.getLinkageName() << "')";
     O << '\n';
   }
 
   for (DIGlobalVariable GV : Finder.global_variables()) {
-    O << "GlobalVariable: ";
-    GV.print(O);
+    O << "Global variable: " << GV.getName();
+    printFile(O, GV.getFilename(), GV.getDirectory(), GV.getLineNumber());
+    if (!GV.getLinkageName().empty())
+      O << " ('" << GV.getLinkageName() << "')";
     O << '\n';
   }
 
   for (DIType T : Finder.types()) {
-    O << "Type: ";
-    T.print(O);
+    O << "Type:";
+    if (!T.getName().empty())
+      O << ' ' << T.getName();
+    printFile(O, T.getFilename(), T.getDirectory(), T.getLineNumber());
+    if (T.isBasicType()) {
+      DIBasicType BT(T.get());
+      O << " ";
+      if (const char *Encoding =
+              dwarf::AttributeEncodingString(BT.getEncoding()))
+        O << Encoding;
+      else
+        O << "unknown-encoding(" << BT.getEncoding() << ')';
+    } else {
+      O << ' ';
+      if (const char *Tag = dwarf::TagString(T.getTag()))
+        O << Tag;
+      else
+        O << "unknown-tag(" << T.getTag() << ")";
+    }
+    if (T.isCompositeType()) {
+      DICompositeType CT(T.get());
+      if (auto *S = CT.getIdentifier())
+        O << " (identifier: '" << S->getString() << "')";
+    }
     O << '\n';
   }
 }