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[Bug optimization/15221] a jump threading opportunity blocked by a few intervening instructions
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Apr 2004 11:17:54 -0000
- Subject: [Bug optimization/15221] a jump threading opportunity blocked by a few intervening instructions
- References: <20040430092445.15221.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-04-30 11:17 -------
Confirmed. On powerpc-apple-darwin at least in the former code it has to save some cr register as it is
using the comparision after a function call so the later example is much faster when called a lot.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-04-30 11:17:53
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15221