[clang] [clang] Load non-simple lvalue operands of __builtin_bit_cast (PR #231830)

[Eli Friedman via cfe-commits]

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@@ -3404,6 +3404,15 @@ void CastOperation::CheckBuiltinBitCast() {
     return;
   }
 
+  if (SrcExpr.get()->isGLValue() &&
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efriedma-quic wrote:

I think so?  I mean, I don't see any compelling reason to make the implementation more complicated for the sake of people trying to do weird things with __builtin_bit_cast.

https://github.com/llvm/llvm-project/pull/231830