From: Ronan Desplanques <desplanq...@adacore.com>

Insert_Actions performs a sanity check when it goes through an
expression with actions while going up the three. That check was not
perfectly right before this patch and spuriously failed when inserting
range checks in some situation. This patch makes the check more robust.

gcc/ada/ChangeLog:

        * exp_util.adb (Insert_Actions): Fix check.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/exp_util.adb | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/gcc/ada/exp_util.adb b/gcc/ada/exp_util.adb
index 90778910e99..4f987790405 100644
--- a/gcc/ada/exp_util.adb
+++ b/gcc/ada/exp_util.adb
@@ -8167,21 +8167,21 @@ package body Exp_Util is
             --  never climb up as far as the N_Expression_With_Actions itself.
 
             when N_Expression_With_Actions =>
-               if N = Expression (P) then
-                  if Is_Empty_List (Actions (P)) then
-                     Append_List_To (Actions (P), Ins_Actions);
-                     Analyze_List (Actions (P));
-                  else
-                     Insert_List_After_And_Analyze
-                       (Last (Actions (P)), Ins_Actions);
-                  end if;
-
-                  return;
-
-               else
+               if Is_List_Member (N) and then List_Containing (N) = Actions (P)
+               then
                   raise Program_Error;
                end if;
 
+               if Is_Empty_List (Actions (P)) then
+                  Append_List_To (Actions (P), Ins_Actions);
+                  Analyze_List (Actions (P));
+               else
+                  Insert_List_After_And_Analyze
+                    (Last (Actions (P)), Ins_Actions);
+               end if;
+
+               return;
+
             --  Case of appearing in the condition of a while expression or
             --  elsif. We insert the actions into the Condition_Actions field.
             --  They will be moved further out when the while loop or elsif
-- 
2.43.0

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