[dragonegg] r185116 - Fix debug info for std::nullptr_t.

[Peter Collingbourne]

Author: pcc
Date: Thu Jun 27 17:52:53 2013
New Revision: 185116

URL: http://llvm.org/viewvc/llvm-project?rev=185116&view=rev
Log:
Fix debug info for std::nullptr_t.

Added:
    dragonegg/trunk/test/validator/c++/nullptr_t.cpp
Modified:
    dragonegg/trunk/src/Debug.cpp

Modified: dragonegg/trunk/src/Debug.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/src/Debug.cpp?rev=185116&r1=185115&r2=185116&view=diff
==============================================================================
--- dragonegg/trunk/src/Debug.cpp (original)
+++ dragonegg/trunk/src/Debug.cpp Thu Jun 27 17:52:53 2013
@@ -918,7 +918,6 @@ DIType DebugInfo::getOrCreateType(tree t
   DIType Ty;
   switch (TREE_CODE(type)) {
   case ERROR_MARK:
-  case LANG_TYPE:
   case TRANSLATION_UNIT_DECL:
   default:
     llvm_unreachable("Unsupported type");
@@ -926,6 +925,13 @@ DIType DebugInfo::getOrCreateType(tree t
 #if (GCC_MINOR > 5)
   case NULLPTR_TYPE:
 #endif
+  case LANG_TYPE: {
+    tree name = TYPE_NAME(type);
+    if (TREE_CODE(name) == TYPE_DECL)
+      name = DECL_NAME(name);
+    return Builder.createUnspecifiedType(IDENTIFIER_POINTER(name));
+  }
+
   case OFFSET_TYPE:
   case POINTER_TYPE:
   case REFERENCE_TYPE:

Added: dragonegg/trunk/test/validator/c++/nullptr_t.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/test/validator/c%2B%2B/nullptr_t.cpp?rev=185116&view=auto
==============================================================================
--- dragonegg/trunk/test/validator/c++/nullptr_t.cpp (added)
+++ dragonegg/trunk/test/validator/c++/nullptr_t.cpp Thu Jun 27 17:52:53 2013
@@ -0,0 +1,7 @@
+// RUN: %dragonegg -std=c++0x -g -S -o - %s | FileCheck %s
+// XFAIL: gcc-4.5
+
+// CHECK: [ DW_TAG_unspecified_type ] [decltype(nullptr)]
+decltype(nullptr) f() {
+  return nullptr;
+}