[gcc r13-498] [Ada] Freeze target type on qualified expression expansion

[gcc r13-498] [Ada] Freeze target type on qualified expression expansion

[Pierre-Marie de Rodat]

https://gcc.gnu.org/g:26bbf0e5da9af096eeddc2a79e1e0da9673b6bd2

commit r13-498-g26bbf0e5da9af096eeddc2a79e1e0da9673b6bd2
Author: Etienne Servais <servais@adacore.com>
Date:   Mon Mar 14 14:35:43 2022 +0100

    [Ada] Freeze target type on qualified expression expansion
    
    An object declaration (other than a deferred constant declaration)
    causes freezing where it occurs (13.14(6)), which means every name
    occurring within it causes freezing (13.14(4/1)), and when the name in a
    subtype_mark causes freezing, the denoted subtype is frozen (13.14(11)).
    Hence, one needs to freeze the target type when expanding a qualified
    expression.
    
    gcc/ada/
    
            * exp_ch4.adb (Expand_N_Qualified_Expression): Freeze
            Target_Type.

Diff:
---
 gcc/ada/exp_ch4.adb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/ada/exp_ch4.adb b/gcc/ada/exp_ch4.adb
index 99fac5f8b6b..74d40e5affd 100644
--- a/gcc/ada/exp_ch4.adb
+++ b/gcc/ada/exp_ch4.adb
@@ -10776,6 +10776,8 @@ package body Exp_Ch4 is
          Ensure_Valid (Operand);
       end if;
 
+      Freeze_Before (Operand, Target_Type);
+
       --  Apply possible constraint check
 
       Apply_Constraint_Check (Operand, Target_Type, No_Sliding => True);