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[Bug middle-end/32628] [4.3 Regression] bogus integer overflow warning
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Jan 2008 21:52:47 -0000
- Subject: [Bug middle-end/32628] [4.3 Regression] bogus integer overflow warning
- References: <bug-32628-7834@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from rguenth at gcc dot gnu dot org 2008-01-16 21:52 -------
Subject: Bug 32628
Author: rguenth
Date: Wed Jan 16 21:51:57 2008
New Revision: 131579
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131579
Log:
2008-01-16 Richard Guenther <rguenther@suse.de>
PR middle-end/32628
* fold-const.c (fold_convert_const_int_from_int): Do not
set overflow if that occured only because of a sign extension
change when converting from/to a sizetype with the same
precision and signedness.
* gcc.dg/overflow-warn-7.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/overflow-warn-7.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32628