From 8199f0bc7722a4d93099cafdb30fa465a2746ce8 Mon Sep 17 00:00:00 2001
From: Manman Ren <manman.ren@gmail.com>
Date: Tue, 8 Oct 2013 19:07:44 +0000
Subject: [PATCH] Add DbgVariable::resolve per Eric's suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192218 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 11 +++++++++--
 lib/CodeGen/AsmPrinter/DwarfDebug.h   |  5 +++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 71838bdd694..cfe4ea6e3f4 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -116,6 +116,13 @@ static const unsigned InitAbbreviationsSetSize = 9; // log2(512)
 
 namespace llvm {
 
+/// resolve - Look in the DwarfDebug map for the MDNode that
+/// corresponds to the reference.
+template <typename T>
+T DbgVariable::resolve(DIRef<T> Ref) const {
+  return DD->resolve(Ref);
+}
+
 DIType DbgVariable::getType() const {
   DIType Ty = Var.getType();
   // FIXME: isBlockByrefVariable should be reformulated in terms of complex
@@ -149,13 +156,13 @@ DIType DbgVariable::getType() const {
     uint16_t tag = Ty.getTag();
 
     if (tag == dwarf::DW_TAG_pointer_type)
-      subType = DD->resolve(DIDerivedType(Ty).getTypeDerivedFrom());
+      subType = resolve(DIDerivedType(Ty).getTypeDerivedFrom());
 
     DIArray Elements = DICompositeType(subType).getTypeArray();
     for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
       DIDerivedType DT = DIDerivedType(Elements.getElement(i));
       if (getName() == DT.getName())
-        return (DD->resolve(DT.getTypeDerivedFrom()));
+        return (resolve(DT.getTypeDerivedFrom()));
     }
   }
   return Ty;
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index e8ca9d27834..6d22f272149 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -209,6 +209,11 @@ public:
     return Var.getAddrElement(i);
   }
   DIType getType() const;
+
+private:
+  /// resolve - Look in the DwarfDebug map for the MDNode that
+  /// corresponds to the reference.
+  template <typename T> T resolve(DIRef<T> Ref) const;
 };
 
 /// \brief Collects and handles information specific to a particular
-- 
2.34.1