From: Bob Duff <duff@adacore.com>
Date: Tue, 9 Feb 2021 19:23:37 +0000 (-0500)
Subject: [Ada] Disable certain checks in predefined units
X-Git-Tag: basepoints/gcc-13~6850
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d31c2b94331ea634e58a6bf9ce93241531819380;p=thirdparty%2Fgcc.git

[Ada] Disable certain checks in predefined units

gcc/ada/

	* sem_cat.adb (Check_Non_Static_Default_Expr): Allow nonstatic
	expression in predefined unit with pragma Preelaborate.
---

diff --git a/gcc/ada/sem_cat.adb b/gcc/ada/sem_cat.adb
index dc07f7897aed..92aa7ecadf52 100644
--- a/gcc/ada/sem_cat.adb
+++ b/gcc/ada/sem_cat.adb
@@ -356,6 +356,14 @@ package body Sem_Cat is
          if Present (Expression (Component_Decl))
            and then Nkind (Expression (Component_Decl)) /= N_Null
            and then not Is_OK_Static_Expression (Expression (Component_Decl))
+
+           --  If we're in a predefined unit, we can put whatever we like in a
+           --  preelaborated package, and in fact in some cases it's necessary
+           --  to bend the rules. Ada.Containers.Bounded_Hashed_Maps contains
+           --  some code that would not be considered preelaborable in user
+           --  code, for example.
+
+           and then not In_Predefined_Unit (Component_Decl)
          then
             Error_Msg_Sloc := Sloc (Component_Decl);
             Error_Msg_F