Expansion of entry families created a slightly illegal AST with
Elsif_Parts being an empty list. Cleanup uncovered by the work on
detection of uninitialized scalars.
gcc/ada/
* exp_ch9.adb (Build_Find_Body_Index): Remove empty Elsif_Parts
from the constructed IF statement.
begin
Remove (Nod);
Set_Else_Statements (Ret, Then_Statements (Nod));
+
+ -- If Elsif_Parts becomes empty then remove it entirely, as
+ -- otherwise we would violate the invariant of If_Statement
+ -- node described in Sinfo.
+
+ if Is_Empty_List (Elsif_Parts (Ret)) then
+ pragma Assert (Elsif_Parts (Ret) /= No_List);
+ Set_Elsif_Parts (Ret, No_List);
+ end if;
end;
end if;
end if;