r228523 - Sema: Don't give attribute alias vars with struct type an init expr

[David Majnemer]

Author: majnemer
Date: Sun Feb  8 04:55:14 2015
New Revision: 228523

URL: http://llvm.org/viewvc/llvm-project?rev=228523&view=rev
Log:
Sema: Don't give attribute alias vars with struct type an init expr

We'd give the VarDecl a CXXConstructExpr even though it is annotated
with an alias attribute.  This would make us trip over sanity checking
asserts.

This fixes PR22493.

Modified:
    cfe/trunk/lib/Sema/SemaDecl.cpp
    cfe/trunk/test/SemaCXX/cxx11-gnu-attrs.cpp

Modified: cfe/trunk/lib/Sema/SemaDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDecl.cpp?rev=228523&r1=228522&r2=228523&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDecl.cpp Sun Feb  8 04:55:14 2015
@@ -9259,6 +9259,8 @@ void Sema::ActOnUninitializedDecl(Decl *
         Var->setInvalidDecl();
         return;
       }
+    } else {
+      return;
     }
 
     // The variable can not have an abstract class type.

Modified: cfe/trunk/test/SemaCXX/cxx11-gnu-attrs.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/cxx11-gnu-attrs.cpp?rev=228523&r1=228522&r2=228523&view=diff
==============================================================================
--- cfe/trunk/test/SemaCXX/cxx11-gnu-attrs.cpp (original)
+++ cfe/trunk/test/SemaCXX/cxx11-gnu-attrs.cpp Sun Feb  8 04:55:14 2015
@@ -15,6 +15,9 @@ void aliasb [[gnu::alias("_Z6alias1v")]]
 void alias1() {}
 void aliasa [[gnu::alias("_Z6alias1v")]] ();
 
+extern struct PR22493Ty {
+} PR22493 [[gnu::alias("_ZN7pcrecpp2RE6no_argE")]];
+
 [[gnu::aligned(8)]] int aligned;
 void aligned_fn [[gnu::aligned(32)]] ();
 struct [[gnu::aligned(8)]] aligned_struct {};