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From: rakdver@atrey.karlin.mff.cuni.cz To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: optimization/10080: Loop unroller nearly useless Date: Sat, 15 Mar 2003 00:06:00 -0000 [thread overview] Message-ID: <20030315000600.9530.qmail@sources.redhat.com> (raw) The following reply was made to PR optimization/10080; it has been noted by GNATS. From: rakdver@atrey.karlin.mff.cuni.cz To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org, falk.hueffner@student.uni-tuebingen.de Cc: Subject: Re: optimization/10080: Loop unroller nearly useless Date: Sat, 15 Mar 2003 00:59:36 +0100 (CET) http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr= 10080 the problem is that ++i is translated into (insn 28 26 29 1 0x40135c40 (set (reg:DI 79) (plus:DI (reg/v:DI 72 [ i ]) (const_int 1 [0x1]))) -1 (nil) (nil)) (insn 29 28 75 1 0x40135c40 (set (reg/v:DI 72 [ i ]) (sign_extend:DI (subreg:SI (reg:DI 79) 0))) -1 (nil) (nil)) but my overly simplistic analysis does not recognize it. I am workning on fix. Zdenek
next reply other threads:[~2003-03-15 0:06 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-03-15 0:06 rakdver [this message] -- strict thread matches above, loose matches on Subject: below -- 2003-03-15 5:36 bangerth 2003-03-14 23:56 rakdver 2003-03-14 11:56 Falk Hueffner
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