[PDB] Add support for dumping Typedef records.

These work a little differently because they are actually in
the globals stream and are treated as symbol records, even though
DIA presents them as types.  So this also adds the necessary
infrastructure to cache records that live somewhere other than
the TPI stream as well.

llvm-svn: 343507

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp b/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
index 49bcc55f279..da9a64487ed 100644
--- a/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
+++ b/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
@@ -197,6 +197,8 @@ static cl::opt<bool> Arrays("arrays", cl::desc("Dump array types"),
                             cl::sub(DiaDumpSubcommand));
 static cl::opt<bool> VTShapes("vtshapes", cl::desc("Dump virtual table shapes"),
                               cl::sub(DiaDumpSubcommand));
+static cl::opt<bool> Typedefs("typedefs", cl::desc("Dump typedefs"),
+                              cl::sub(DiaDumpSubcommand));
 } // namespace diadump
 
 namespace pretty {
@@ -1027,6 +1029,8 @@ static void dumpDia(StringRef Path) {
     SymTypes.push_back(PDB_SymType::ArrayType);
   if (opts::diadump::VTShapes)
     SymTypes.push_back(PDB_SymType::VTableShape);
+  if (opts::diadump::Typedefs)
+    SymTypes.push_back(PDB_SymType::Typedef);
   PdbSymbolIdField Ids = opts::diadump::NoSymIndexIds ? PdbSymbolIdField::None
                                                       : PdbSymbolIdField::All;