This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- From: "eweddington at cso dot atmel dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Sep 2007 15:44:08 -0000
- Subject: [Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- References: <bug-11180-6291@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #18 from eweddington at cso dot atmel dot com 2007-09-16 15:44 -------
Subject: RE: [avr-gcc] Optimization decrease performance of
struct assignment.
> ------- Comment #15 from rask at gcc dot gnu dot org
> 2007-09-16 12:57 -------
> Also, it seems to me that avr.h defines MOVE_MAX incorrectly.
> Shouldn't it be 2
> instead of 4?
Hmm. Yes and no. There are variants that have the MOVW instruction, and for
those it should be 2. Otherwise, if they don't have the MOVW instruction, it
should be 1, I think.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180