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From: "ibolton at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/46092] Improve constant handling of thumb2 instructions Date: Wed, 27 Oct 2010 16:04:00 -0000 [thread overview] Message-ID: <20101027160400.EanhlebcZ8HDjbtC1fvYCzc7L-z4hsBTnBpX6AXDJZ4@z> (raw) In-Reply-To: <bug-46092-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46092 Ian Bolton <ibolton at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Status|UNCONFIRMED |NEW Last reconfirmed| |2010.10.27 16:03:59 CC| |ibolton at gcc dot gnu.org Ever Confirmed|0 |1 Known to fail| |4.6.0 --- Comment #1 from Ian Bolton <ibolton at gcc dot gnu.org> 2010-10-27 16:03:59 UTC --- Confirmed on trunk, revision 165513. In your example, another way would be to subtract r3 (#65520) and then #1. Note: neither -O3 or -O2 can avoid the three subhi instruction, currently.
next prev parent reply other threads:[~2010-10-27 16:04 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-10-20 9:20 [Bug target/46092] New: " carrot at google dot com 2010-10-27 16:04 ` ibolton at gcc dot gnu.org [this message] 2010-12-10 17:24 ` [Bug target/46092] " ams at gcc dot gnu.org 2010-12-10 17:27 ` ams at gcc dot gnu.org 2012-02-24 12:48 ` ramana at gcc dot gnu.org
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