From: hainque <hainque@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 15 Dec 2005 13:09:41 +0000 (+0000)
Subject: 	* stor-layout.c (layout_type): Don't complain about a too small
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=e1b062ae95f10d7e3aa9610f524eefc24e25c96b;hp=f707ca7d6540d182cc9676280ce54ebb0c72c41b

	* stor-layout.c (layout_type): Don't complain about a too small
	an array element type size compared to its alignment when the
	size overflows.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108575 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 288eafef534..46d848d11a5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-12-15  Olivier Hainque  <hainque@adacore.com>
+
+	* stor-layout.c (layout_type): Don't complain about a too small
+	an array element type size compared to its alignment when the
+	size overflows.
+
 2005-12-15  Jan Hubicka  <jh@suse.cz>
 
 	PR target/24969
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c
index 54ab5ac14a5..b4e9ad1072f 100644
--- a/gcc/stor-layout.c
+++ b/gcc/stor-layout.c
@@ -1816,8 +1816,13 @@ layout_type (tree type)
 		TYPE_MODE (type) = BLKmode;
 	      }
 	  }
+	/* When the element size is constant, check that it is at least as
+	   large as the element alignment.  */
 	if (TYPE_SIZE_UNIT (element)
 	    && TREE_CODE (TYPE_SIZE_UNIT (element)) == INTEGER_CST
+	    /* If TYPE_SIZE_UNIT overflowed, then it is certainly larger than
+	       TYPE_ALIGN_UNIT.  */
+	    && !TREE_CONSTANT_OVERFLOW (TYPE_SIZE_UNIT (element))
 	    && !integer_zerop (TYPE_SIZE_UNIT (element))
 	    && compare_tree_int (TYPE_SIZE_UNIT (element),
 			  	 TYPE_ALIGN_UNIT (element)) < 0)