From: Richard Biener <rguenther@suse.de>
Date: Thu, 28 Jul 2022 08:07:32 +0000 (+0200)
Subject: middle-end/106457 - improve array_at_struct_end_p for array objects
X-Git-Tag: basepoints/gcc-14~5332
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff26f0ba68fe6e870f315d0601b596f889b89680;p=thirdparty%2Fgcc.git

middle-end/106457 - improve array_at_struct_end_p for array objects

Array references to array objects are never at struct end.

	PR middle-end/106457
	* tree.cc (array_at_struct_end_p): Handle array objects
	specially.
---

diff --git a/gcc/tree.cc b/gcc/tree.cc
index 84000dd8b69..fed1434d141 100644
--- a/gcc/tree.cc
+++ b/gcc/tree.cc
@@ -12778,6 +12778,10 @@ array_at_struct_end_p (tree ref)
       && DECL_SIZE_UNIT (ref)
       && TREE_CODE (DECL_SIZE_UNIT (ref)) == INTEGER_CST)
     {
+      /* If the object itself is the array it is not at struct end.  */
+      if (DECL_P (ref_to_array))
+	return false;
+
       /* Check whether the array domain covers all of the available
          padding.  */
       poly_int64 offset;