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[Bug target/29953] [SH-4] Perfomance regression in loops. cmp/eq used instead of dt
- From: "chrbr at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Jun 2007 07:58:56 -0000
- Subject: [Bug target/29953] [SH-4] Perfomance regression in loops. cmp/eq used instead of dt
- References: <bug-29953-12348@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from chrbr at gcc dot gnu dot org 2007-06-08 07:58 -------
Subject: Bug 29953
Author: chrbr
Date: Fri Jun 8 07:58:41 2007
New Revision: 125564
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125564
Log:
PR target/29953
* config/sh/sh.md (doloop_end): New pattern and splitter.
* loop-iv.c (simple_rhs_p): Check for hardware registers.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/sh/sh.md
trunk/gcc/loop-iv.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29953