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* [Bug c/19924] New: [AVR] MODES_TIEABLE incorrect
@ 2005-02-12 20:53 andrewhutchinson at cox dot net
2005-02-12 21:00 ` [Bug c/19924] " andrewhutchinson at cox dot net
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: andrewhutchinson at cox dot net @ 2005-02-12 20:53 UTC (permalink / raw)
To: gcc-bugs
MODES_TIEABLE in avr is set such that access to subreg is prevented.
This result is significantly sub-optimal code.
Attached patch changes this. No regressions have been found with test suite -
indeed things got better!
Note this is related to PR/19815 documentation error.
--
Summary: [AVR] MODES_TIEABLE incorrect
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: andrewhutchinson at cox dot net
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: avr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19924
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c/19924] [AVR] MODES_TIEABLE incorrect 2005-02-12 20:53 [Bug c/19924] New: [AVR] MODES_TIEABLE incorrect andrewhutchinson at cox dot net @ 2005-02-12 21:00 ` andrewhutchinson at cox dot net 2005-02-16 7:06 ` cvs-commit at gcc dot gnu dot org 2005-02-16 7:31 ` [Bug target/19924] " pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: andrewhutchinson at cox dot net @ 2005-02-12 21:00 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From andrewhutchinson at cox dot net 2005-02-12 15:35 ------- Created an attachment (id=8186) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8186&action=view) Patch to chnage MODES_TIEABLE -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19924 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/19924] [AVR] MODES_TIEABLE incorrect 2005-02-12 20:53 [Bug c/19924] New: [AVR] MODES_TIEABLE incorrect andrewhutchinson at cox dot net 2005-02-12 21:00 ` [Bug c/19924] " andrewhutchinson at cox dot net @ 2005-02-16 7:06 ` cvs-commit at gcc dot gnu dot org 2005-02-16 7:31 ` [Bug target/19924] " pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2005-02-16 7:06 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-02-16 03:17 ------- Subject: Bug 19924 CVSROOT: /cvs/gcc Module name: gcc Changes by: sayle@gcc.gnu.org 2005-02-16 03:17:13 Modified files: gcc : ChangeLog gcc/config/avr : avr.h Log message: 2005-02-15 Andy Hutchinson <HutchinsonAndy@netscape.net> PR target/19924 * config/avr/avr.h (MODES_TIEABLE_P): Define to 1 to allow subreg access optimization. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7488&r2=2.7489 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/avr/avr.h.diff?cvsroot=gcc&r1=1.110&r2=1.111 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19924 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/19924] [AVR] MODES_TIEABLE incorrect 2005-02-12 20:53 [Bug c/19924] New: [AVR] MODES_TIEABLE incorrect andrewhutchinson at cox dot net 2005-02-12 21:00 ` [Bug c/19924] " andrewhutchinson at cox dot net 2005-02-16 7:06 ` cvs-commit at gcc dot gnu dot org @ 2005-02-16 7:31 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-02-16 7:31 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-16 03:22 ------- Fixed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Component|c |target Keywords| |missed-optimization Resolution| |FIXED Target Milestone|--- |4.0.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19924 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-02-16 3:22 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-02-12 20:53 [Bug c/19924] New: [AVR] MODES_TIEABLE incorrect andrewhutchinson at cox dot net 2005-02-12 21:00 ` [Bug c/19924] " andrewhutchinson at cox dot net 2005-02-16 7:06 ` cvs-commit at gcc dot gnu dot org 2005-02-16 7:31 ` [Bug target/19924] " pinskia at gcc dot gnu dot org
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