[clang] No longer assert when using noderef on an _Atomic type (PR #116237)

[Erich Keane via cfe-commits]

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@@ -183,3 +183,8 @@ int *const_cast_check(NODEREF const int *x) {
 const int *const_cast_check(NODEREF int *x) {
   return const_cast<const int *>(x); // expected-warning{{casting to dereferenceable pointer removes 'noderef' attribute}}
 }
+
+namespace GH116124 {
+// This declaration would previously cause a failed assertion.
+int *_Atomic a __attribute__((noderef));
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erichkeane wrote:

I see you removed the bit that causes a warning, I would expect this to still warn, right?  Can you explain that?

https://github.com/llvm/llvm-project/pull/116237