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* [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast
@ 2011-03-14 10:30 vincenzo.innocente at cern dot ch
2013-11-08 10:34 ` [Bug middle-end/48110] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: vincenzo.innocente at cern dot ch @ 2011-03-14 10:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
Summary: __attribute__ ((optimize(...))) version of -Ofast
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: vincenzo.innocente@cern.ch
gcc 4.6 introduces a new global optimization switch -Ofast.
Independently of what actually it is composed of, it seems not supported by
__attribute__ ((optimize(...)))
for instance
__attribute__ ((optimize("fast-math"))) works
__attribute__ ((optimize("3"))) works
while
__attribute__ ((optimize("fast")))
produces
error: unrecognized command line option '-ffast'
is this a bug or shall I use a different syntax?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/48110] __attribute__ ((optimize(...))) version of -Ofast
2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
@ 2013-11-08 10:34 ` rguenth at gcc dot gnu.org
2021-09-02 5:15 ` [Bug middle-end/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute pinskia at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-08 10:34 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Indeed, not sure why we even support "3" or "s", but "fast" would certainly
alias with -fast ;)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute
2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
2013-11-08 10:34 ` [Bug middle-end/48110] " rguenth at gcc dot gnu.org
@ 2021-09-02 5:15 ` pinskia at gcc dot gnu.org
2021-09-02 5:20 ` [Bug c/48110] " pinskia at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-09-02 5:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Keywords| |rejects-valid
Last reconfirmed| |2021-09-02
Summary|__attribute__ |"fast" and "g" should be
|((optimize(...))) version |aliases of "Ofast" and "Og"
|of -Ofast |inside optimize attribute
Ever confirmed|0 |1
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed. "g" has the same issue too.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute
2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
2013-11-08 10:34 ` [Bug middle-end/48110] " rguenth at gcc dot gnu.org
2021-09-02 5:15 ` [Bug middle-end/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute pinskia at gcc dot gnu.org
@ 2021-09-02 5:20 ` pinskia at gcc dot gnu.org
2021-12-23 4:11 ` pinskia at gcc dot gnu.org
2021-12-23 13:20 ` egallager at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-09-02 5:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |c
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The code is in c-family/c-common:
/* Assume that Ox is -Ox, a numeric value is -Ox, a s by
itself is -Os, and any other switch begins with a -f. */
if ((*p >= '0' && *p <= '9')
|| (p[0] == 's' && p[1] == '\0'))
*r++ = 'O';
else if (*p != 'O')
*r++ = 'f';
as you can see 's' is support by that but 'g' or "fast" is not.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute
2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
` (2 preceding siblings ...)
2021-09-02 5:20 ` [Bug c/48110] " pinskia at gcc dot gnu.org
@ 2021-12-23 4:11 ` pinskia at gcc dot gnu.org
2021-12-23 13:20 ` egallager at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-23 4:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
Bug 48110 depends on bug 53776, which changed state.
Bug 53776 Summary: pragma optimize does not support Os
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute
2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
` (3 preceding siblings ...)
2021-12-23 4:11 ` pinskia at gcc dot gnu.org
@ 2021-12-23 13:20 ` egallager at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: egallager at gcc dot gnu.org @ 2021-12-23 13:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48110
Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |egallager at gcc dot gnu.org,
| |roger at nextmovesoftware dot com
--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
Hm, I wonder if this affects the new -Oz switch, too...
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-12-23 13:20 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2011-03-14 10:30 [Bug middle-end/48110] New: __attribute__ ((optimize(...))) version of -Ofast vincenzo.innocente at cern dot ch
2013-11-08 10:34 ` [Bug middle-end/48110] " rguenth at gcc dot gnu.org
2021-09-02 5:15 ` [Bug middle-end/48110] "fast" and "g" should be aliases of "Ofast" and "Og" inside optimize attribute pinskia at gcc dot gnu.org
2021-09-02 5:20 ` [Bug c/48110] " pinskia at gcc dot gnu.org
2021-12-23 4:11 ` pinskia at gcc dot gnu.org
2021-12-23 13:20 ` egallager at gcc dot gnu.org
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