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* [Bug c/21079] New: avr-gcc lacks support for builtin ffs function
@ 2005-04-17 22:37 bjoern dot m dot haase at web dot de
2005-04-17 22:45 ` [Bug target/21079] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: bjoern dot m dot haase at web dot de @ 2005-04-17 22:37 UTC (permalink / raw)
To: gcc-bugs
tests gcc.c-torture/excecute/ffs-1 and -2 fail since neither libgcc nor libgcc2
provide support for the excpected builtin function ffs.
--
Summary: avr-gcc lacks support for builtin ffs function
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bjoern dot m dot haase at web dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i586-linux
GCC host triplet: i586-linux
GCC target triplet: avr-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/21079] avr-gcc lacks support for builtin ffs function
2005-04-17 22:37 [Bug c/21079] New: avr-gcc lacks support for builtin ffs function bjoern dot m dot haase at web dot de
@ 2005-04-17 22:45 ` pinskia at gcc dot gnu dot org
2005-04-17 23:07 ` bjoern dot m dot haase at web dot de
2005-04-19 15:50 ` ericw at evcohs dot com
2 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-17 22:45 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-17 22:45 -------
ffs is a POSIX function which almost all libc provides.
So if there is no fall back function, there is nothing which GCC can do.
Does avr have instructions which could be used to implement this if so it should implement ffssi/ffsdi
and such.
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c |target
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/21079] avr-gcc lacks support for builtin ffs function
2005-04-17 22:37 [Bug c/21079] New: avr-gcc lacks support for builtin ffs function bjoern dot m dot haase at web dot de
2005-04-17 22:45 ` [Bug target/21079] " pinskia at gcc dot gnu dot org
@ 2005-04-17 23:07 ` bjoern dot m dot haase at web dot de
2005-04-19 15:50 ` ericw at evcohs dot com
2 siblings, 0 replies; 6+ messages in thread
From: bjoern dot m dot haase at web dot de @ 2005-04-17 23:07 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bjoern dot m dot haase at web dot de 2005-04-17 23:07 -------
So probably the best thing to do now would probably be to 1.) mark the test
cases as xfail and 2.) write an enhancement request for avr-libc.?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/21079] avr-gcc lacks support for builtin ffs function
2005-04-17 22:37 [Bug c/21079] New: avr-gcc lacks support for builtin ffs function bjoern dot m dot haase at web dot de
2005-04-17 22:45 ` [Bug target/21079] " pinskia at gcc dot gnu dot org
2005-04-17 23:07 ` bjoern dot m dot haase at web dot de
@ 2005-04-19 15:50 ` ericw at evcohs dot com
2 siblings, 0 replies; 6+ messages in thread
From: ericw at evcohs dot com @ 2005-04-19 15:50 UTC (permalink / raw)
To: gcc-bugs
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------- Additional Comments From ericw at evcohs dot com 2005-04-19 15:49 -------
Björn,
That sounds like a reasonable approach. Submit a bug report to the avr-libc
project on Savannah:
<http://savannah.nongnu.org/projects/avr-libc/>
Eric
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What |Removed |Added
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CC| |ericw at evcohs dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/21079] avr-gcc lacks support for builtin ffs function
[not found] <bug-21079-9887@http.gcc.gnu.org/bugzilla/>
2005-10-18 22:44 ` aesok at pautinka dot net
@ 2005-10-18 22:46 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-18 22:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2005-10-18 22:46 -------
So closing as fixed then.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/21079] avr-gcc lacks support for builtin ffs function
[not found] <bug-21079-9887@http.gcc.gnu.org/bugzilla/>
@ 2005-10-18 22:44 ` aesok at pautinka dot net
2005-10-18 22:46 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: aesok at pautinka dot net @ 2005-10-18 22:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from aesok at pautinka dot net 2005-10-18 22:44 -------
Functions 'ffs', 'ffsl' and 'ffsll' are added in avr-libc library.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21079
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-10-18 22:46 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2005-04-17 22:37 [Bug c/21079] New: avr-gcc lacks support for builtin ffs function bjoern dot m dot haase at web dot de
2005-04-17 22:45 ` [Bug target/21079] " pinskia at gcc dot gnu dot org
2005-04-17 23:07 ` bjoern dot m dot haase at web dot de
2005-04-19 15:50 ` ericw at evcohs dot com
[not found] <bug-21079-9887@http.gcc.gnu.org/bugzilla/>
2005-10-18 22:44 ` aesok at pautinka dot net
2005-10-18 22:46 ` pinskia at gcc dot gnu dot org
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