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[Ada] Fix recent regression on _Master declaration

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gcc/ada/

	* exp_ch9.adb
	(Build_Class_Wide_Master): Insert the declaration of _Master
	before its use; required to avoid assertion failure in the
	backend.
This commit is contained in:
Javier Miranda 2020-05-22 15:29:57 -04:00 committed by Pierre-Marie de Rodat
parent eafbde5131
commit d387808d8b
1 changed files with 12 additions and 1 deletions
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13
gcc/ada/exp_ch9.adb
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@ -1215,10 +1215,21 @@ package body Exp_Ch9 is
if not Has_Master_Entity (Master_Scope)
or else No (Current_Entity_In_Scope (Name_Id))
then
declare
Ins_Nod : Node_Id;
begin
Set_Has_Master_Entity (Master_Scope);
Master_Decl := Build_Master_Declaration (Loc);
Insert_Action (Find_Hook_Context (Related_Node), Master_Decl);
-- Ensure that the master declaration is placed before its use
Ins_Nod := Find_Hook_Context (Related_Node);
while not Is_List_Member (Ins_Nod) loop
Ins_Nod := Parent (Ins_Nod);
end loop;
Insert_Before (First (List_Containing (Ins_Nod)), Master_Decl);
Analyze (Master_Decl);
-- Mark the containing scope as a task master. Masters associated