From: Vassil Vassilev <v.g.vassilev@gmail.com>
Date: Fri, 8 Jul 2016 16:04:22 +0000 (+0000)
Subject: Don't crash when printing auto variables.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bb6076f3bf0f1aeca6089de675c2b9b13210457d;p=clang

Don't crash when printing auto variables.

Patch by Axel Naumann!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274859 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index 6868ea2a6d..bfdb47b90d 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -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!");
   }
diff --git a/test/SemaCXX/ast-print.cpp b/test/SemaCXX/ast-print.cpp
index 39a52ab8d7..733931803b 100644
--- a/test/SemaCXX/ast-print.cpp
+++ b/test/SemaCXX/ast-print.cpp
@@ -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;
+}