From: Piotr Trojanek <trojanek@adacore.com>
Date: Tue, 9 Mar 2021 21:22:19 +0000 (+0100)
Subject: [Ada] Fix detection of slices that denote the same object
X-Git-Tag: basepoints/gcc-13~6727
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3447d9e49e33199b4c5c0fe16e272e3ecfd36275;p=thirdparty%2Fgcc.git

[Ada] Fix detection of slices that denote the same object

gcc/ada/

	* sem_util.adb (Denotes_Same_Object): Call Get_Index_Bounds with
	the range of a slice object, not its type.
---

diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
index 6481d86a8358..c9d97a934643 100644
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -7482,8 +7482,8 @@ package body Sem_Util is
             Lo1, Lo2, Hi1, Hi2 : Node_Id;
 
          begin
-            Get_Index_Bounds (Etype (Obj1), Lo1, Hi1);
-            Get_Index_Bounds (Etype (Obj2), Lo2, Hi2);
+            Get_Index_Bounds (Discrete_Range (Obj1), Lo1, Hi1);
+            Get_Index_Bounds (Discrete_Range (Obj2), Lo2, Hi2);
 
             --  Check whether bounds are statically identical. There is no
             --  attempt to detect partial overlap of slices.