================
@@ -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();
----------------
Nemi26 wrote:

This emits one volatile load of the operand's size, typed as the destination 
(an i64 load from a volatile double). The access width matches GCC's; only the 
instruction class differs. If matching GCC's `movsd` matters, I can load as 
`From` and bitcast the value instead.

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