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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/16457] PowerPC - Combine two rldicr instructions into a single rlwinm.
Date: Wed, 03 Nov 2004 15:41:00 -0000 [thread overview]
Message-ID: <20041103154119.7537.qmail@sourceware.org> (raw)
In-Reply-To: <20040709175338.16457.steinmtz@us.ibm.com>
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-03 15:41 -------
What is happening is the following instruction is being split up:
(insn:HI 14 13 15 0 (parallel [
(set (reg:DI 123)
(and:DI (reg/v:DI 118 [ x ])
(const_int 4294967294 [0xfffffffe])))
(clobber (scratch:CC))
]) 273 {anddi3} (nil)
(expr_list:REG_DEAD (reg/v:DI 118 [ x ])
(expr_list:REG_UNUSED (scratch:CC)
(nil))))
It is being split up inefficently.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16457
next prev parent reply other threads:[~2004-11-03 15:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-09 18:05 [Bug regression/16457] New: " gcc-bugzilla at gcc dot gnu dot org
2004-07-09 18:57 ` [Bug target/16457] " pinskia at gcc dot gnu dot org
2004-07-09 19:12 ` pinskia at gcc dot gnu dot org
2004-11-03 14:50 ` nathan at gcc dot gnu dot org
2004-11-03 15:41 ` pinskia at gcc dot gnu dot org [this message]
2004-11-11 16:59 ` nathan at gcc dot gnu dot org
2004-11-11 17:01 ` pinskia at gcc dot gnu dot org
2004-11-11 17:04 ` cvs-commit at gcc dot gnu dot org
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