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* [gcc r13-7862] ada: Fix internal error on declare-expression in post-condition
@ 2023-09-27 8:24 Eric Botcazou
0 siblings, 0 replies; only message in thread
From: Eric Botcazou @ 2023-09-27 8:24 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:105309d2bb72a1c9e15014b01f390eca85f141ef
commit r13-7862-g105309d2bb72a1c9e15014b01f390eca85f141ef
Author: Eric Botcazou <ebotcazou@adacore.com>
Date: Fri Mar 10 18:05:13 2023 +0100
ada: Fix internal error on declare-expression in post-condition
It comes from an incorrect node sharing in the expanded tree.
gcc/ada/
* sem_ch3.adb (Find_Type_Of_Object): Copy the object definition when
building the subtype declaration in the case of a spec expression.
Diff:
---
gcc/ada/sem_ch3.adb | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/gcc/ada/sem_ch3.adb b/gcc/ada/sem_ch3.adb
index e462fa9bf1b..2e9f8aace1a 100644
--- a/gcc/ada/sem_ch3.adb
+++ b/gcc/ada/sem_ch3.adb
@@ -18425,19 +18425,21 @@ package body Sem_Ch3 is
Analyze (Subtype_Mark (Obj_Def));
declare
- Base_T : constant Entity_Id := Entity (Subtype_Mark (Obj_Def));
- Decl : constant Node_Id :=
+ Base_T : constant Entity_Id := Entity (Subtype_Mark (Obj_Def));
+ New_Def : constant Node_Id := New_Copy_Tree (Obj_Def);
+ Decl : constant Node_Id :=
Make_Subtype_Declaration (Sloc (P),
Defining_Identifier => T,
- Subtype_Indication => Relocate_Node (Obj_Def));
+ Subtype_Indication => New_Def);
+
begin
Set_Etype (T, Base_T);
Mutate_Ekind (T, Subtype_Kind (Ekind (Base_T)));
- Set_Parent (T, Obj_Def);
+ Set_Parent (T, Decl);
Set_Scope (T, Current_Scope);
if Ekind (T) = E_Array_Subtype then
- Constrain_Array (T, Obj_Def, Related_Nod, T, 'P');
+ Constrain_Array (T, New_Def, Related_Nod, T, 'P');
elsif Ekind (T) = E_Record_Subtype then
Set_First_Entity (T, First_Entity (Base_T));
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