[clang] 4ae8651 - Add another test for PR48434.

[Richard Smith via cfe-commits]

Author: Richard Smith
Date: 2020-12-09T12:22:35-08:00
New Revision: 4ae8651c59241bca0c1ea5adaf8f06b292696b6f

URL: https://github.com/llvm/llvm-project/commit/4ae8651c59241bca0c1ea5adaf8f06b292696b6f
DIFF: https://github.com/llvm/llvm-project/commit/4ae8651c59241bca0c1ea5adaf8f06b292696b6f.diff

LOG: Add another test for PR48434.

Added: 
    

Modified: 
    clang/test/PCH/decl-attrs.cpp

Removed: 
    


################################################################################
diff  --git a/clang/test/PCH/decl-attrs.cpp b/clang/test/PCH/decl-attrs.cpp
index c89354d0c5de..249107001874 100644
--- a/clang/test/PCH/decl-attrs.cpp
+++ b/clang/test/PCH/decl-attrs.cpp
@@ -12,6 +12,18 @@ namespace preferred_name {
   Y y;
 }
 
+namespace aligned {
+  // PR48434: ensure attributes don't introduce deserialization cycles.
+  template<typename T> struct X1;
+  using Y1 = X1<int>;
+  template<typename T> struct alignas(Y1*) X1 {};
+  Y1 y1;
+
+  template<typename T> struct X2;
+  using Y2 = X2<int>;
+  template<typename T> struct alignas(Y2*) X2 {};
+}
+
 #else
 
 namespace preferred_name {
@@ -24,4 +36,11 @@ namespace preferred_name {
   }
 }
 
+namespace aligned {
+  extern Y1 y1;
+  extern Y2 y2;
+  static_assert(alignof(Y1) == alignof(Y1*), "");
+  static_assert(alignof(Y2) == alignof(Y2*), "");
+}
+
 #endif