[clang] [clang] Bind the __builtin_bit_cast operand as std::bit_cast binds its parameter (PR #231830)

[Hubert Tong via cfe-commits]

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@@ -2658,6 +2658,8 @@ Value *ScalarExprEmitter::VisitCastExpr(CastExpr *CE) {
     Address Addr =
         SourceLVal.getAddress().withElementType(CGF.ConvertTypeForMem(DestTy));
     LValue DestLV = CGF.MakeAddrLValue(Addr, DestTy);
+    if (SourceLVal.isVolatileQualified())
+      DestLV.getQuals().addVolatile();
----------------
hubert-reinterpretcast wrote:

>     * We error out.

That would be my preference.

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