[Ada] Fix insertion of a runtime check for null array aggregate

A null array aggregate of Ada 2022 requires a conditional runtime check
that was inserted as an if-statement. While gigi can handle statements
inserted into a list of declarations, in GNATprove such a statement will
cause a crash. It is better to insert a conditional raise node, which is
properly handled by both gigi and GNATprove.

gcc/ada/

	* sem_aggr.adb (Resolve_Null_Array_Aggregate): Insert check as a
	Raise_Constraint_Error node and not an If_Statement.

diff --git a/gcc/ada/sem_aggr.adb b/gcc/ada/sem_aggr.adb
index 4ad4a29373dc28ca4c39b201defc5954cc9cab9e..dddc75f3a2eeb69c8c95fd4d7059bfa1ba522c6a 100644 (file)
--- a/gcc/ada/sem_aggr.adb
+++ b/gcc/ada/sem_aggr.adb
@@ -4113,12 +4113,10 @@ package body Sem_Aggr is
          --  including modular).
 
          Check :=
-           Make_If_Statement (Loc,
+           Make_Raise_Constraint_Error (Loc,
              Condition =>
                Make_Op_Le (Loc, New_Copy_Tree (Lo), New_Copy_Tree (Hi)),
-             Then_Statements =>
-               New_List (Make_Raise_Constraint_Error
-                           (Loc, Reason => CE_Range_Check_Failed)));
+             Reason => CE_Range_Check_Failed);
 
          Insert_Action (N, Check);