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In the case of a call to a subprogram that has an out (or in-out) parameter that is passed by copy, the caller performs copy-back after the call returns. If the actual parameter is a view conversion to a subtype that has an enabled predicate, then the predicate check performed at that point should be performed before, not after, the operand of the view conversion is updated. gcc/ada/ChangeLog: * exp_ch6.adb (Expand_Actuals): After building the tree for a predicate check, call Prepend_To instead of Append_To so that the check is performed before, instead of after, the corresponding parameter copy-back.
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