9fbf6517c7
When an array has several dimensions, and inner dimmensions are initialized using Ada 2022 null array aggregates, the compiler crashes or reports spurious errors computing the bounds of the null array aggregates. This patch fixes the problem and adds new warnings reported when the index of null array aggregates is an enumeration type or a modular type and it is known at compile time that the program will raise Constraint_Error computing the bounds of the aggregate. gcc/ada/ * sem_aggr.adb (Cannot_Compute_High_Bound): New subprogram. (Report_Null_Array_Constraint_Error): New subprogram. (Collect_Aggr_Bounds): For null aggregates, build the bounds of the inner dimensions. (Has_Null_Aggregate_Raising_Constraint_Error): New subprogram. (Subtract): New subprogram. (Resolve_Array_Aggregate): Report a warning when the index of null array aggregates is an enumeration type or a modular type at we can statically determine that the program will raise CE at runtime computing its high bound. (Resolve_Null_Array_Aggregate): ditto. |
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