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From: Andreas Jaeger <aj@suse.de> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: target/7559: kdelibs miscompilation Date: Sun, 11 Aug 2002 09:46:00 -0000 [thread overview] Message-ID: <20020811134602.10696.qmail@sources.redhat.com> (raw) The following reply was made to PR target/7559; it has been noted by GNATS. From: Andreas Jaeger <aj@suse.de> To: Jan Hubicka <jh@suse.cz> Cc: Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>, gcc-gnats@gcc.gnu.org, david@mandrakesoft.com, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Subject: Re: target/7559: kdelibs miscompilation Date: Sun, 11 Aug 2002 15:22:33 +0200 Honza, since you fixed this bug: Can you add the testcase to the testsuite, please? Please also remember to close the PR. Thanks a lot for the quick patch, Andreas Jan Hubicka <jh@suse.cz> writes: >> 3) The last testcase is ultra-reduced to a two eightbytes object, with >> only one member in each one. That one do fails. >> >> extern void abort(); >> >> struct A { >> long x; >> }; >> >> struct R { >> struct A a, b; >> }; >> >> struct R R = { >> 100, 200 >> }; >> >> void f(struct R r) { >> if (r.a.x != R.a.x || r.b.x != R.b.x) >> abort(); >> } >> >> int main() { >> f(R); >> return 0; >> } > > This looks like a bug in code computing offests of nested aggregates. I > am just checking it. > Thanks a lot for reducing the testcase! This is really usefull one :) > > Honza >> >> 4) The <struct.c> testcase won't fail if we add some garbage in struct R, >> because the size of the object will be > 16 bytes, thus having MEMORY >> class. >> >> HTH, >> Gwenole. > -- Andreas Jaeger SuSE Labs aj@suse.de private aj@arthur.inka.de http://www.suse.de/~aj
next reply other threads:[~2002-08-11 13:46 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-08-11 9:46 Andreas Jaeger [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-10-06 9:55 aj 2002-08-10 6:46 Jan Hubicka 2002-08-10 6:16 Gwenole Beauchesne 2002-08-09 11:06 Gwenole Beauchesne 2002-08-09 10:16 Gwenole Beauchesne 2002-08-09 9:56 gbeauchesne
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