r274859 - Don't crash when printing auto variables.

[Vassil Vassilev via cfe-commits]

Author: vvassilev
Date: Fri Jul  8 11:04:22 2016
New Revision: 274859

URL: http://llvm.org/viewvc/llvm-project?rev=274859&view=rev
Log:
Don't crash when printing auto variables.

Patch by Axel Naumann!

Modified:
    cfe/trunk/lib/AST/DeclPrinter.cpp
    cfe/trunk/test/SemaCXX/ast-print.cpp

Modified: cfe/trunk/lib/AST/DeclPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclPrinter.cpp?rev=274859&r1=274858&r2=274859&view=diff
==============================================================================
--- cfe/trunk/lib/AST/DeclPrinter.cpp (original)
+++ cfe/trunk/lib/AST/DeclPrinter.cpp Fri Jul  8 11:04:22 2016
@@ -132,6 +132,8 @@ static QualType GetBaseType(QualType T)
       BaseType = VTy->getElementType();
     else if (const ReferenceType *RTy = BaseType->getAs<ReferenceType>())
       BaseType = RTy->getPointeeType();
+    else if (const AutoType *ATy = BaseType->getAs<AutoType>())
+      BaseType = ATy->getDeducedType();
     else
       llvm_unreachable("Unknown declarator!");
   }

Modified: cfe/trunk/test/SemaCXX/ast-print.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/ast-print.cpp?rev=274859&r1=274858&r2=274859&view=diff
==============================================================================
--- cfe/trunk/test/SemaCXX/ast-print.cpp (original)
+++ cfe/trunk/test/SemaCXX/ast-print.cpp Fri Jul  8 11:04:22 2016
@@ -227,3 +227,12 @@ template <typename T> struct Foo : T {
   using T::operator-;
 };
 }
+
+namespace dont_crash {
+struct T { enum E {X = 12ll }; };
+struct S {
+  struct  { int I; } ADecl;
+  static const auto Y = T::X;
+};
+//CHECK: static const auto Y = T::X;
+}