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* [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often
[not found] <bug-8092-4580@http.gcc.gnu.org/bugzilla/>
@ 2006-04-26 9:10 ` e98cuenc at yahoo dot com
2006-04-26 19:14 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: e98cuenc at yahoo dot com @ 2006-04-26 9:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #31 from e98cuenc at yahoo dot com 2006-04-26 09:10 -------
This bug was closed under the assumption that ""Furthermore, with
-freorder-blocks, the problem goes away.""
That's false (most of the time), with 3.4.2. AFAICT there is no set of flags
able to reliably desactivate that cross-jumping.
It should be noted that when the extra jmp is shared by a low number of BB,
then it's put inline, as asked (with -fno-crossjumping). In my VM, when I went
over 10 opcodes (ie, 12 or more "goto *(opcodes[*ip++])") I got again an extra
BB for jmp *%eax.
Any hopes of resurrecting this bug?
--
e98cuenc at yahoo dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |e98cuenc at yahoo dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8092
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often
[not found] <bug-8092-4580@http.gcc.gnu.org/bugzilla/>
2006-04-26 9:10 ` [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often e98cuenc at yahoo dot com
@ 2006-04-26 19:14 ` pinskia at gcc dot gnu dot org
2006-04-26 19:15 ` pinskia at gcc dot gnu dot org
2006-04-26 19:16 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-26 19:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #32 from pinskia at gcc dot gnu dot org 2006-04-26 19:14 -------
Reopening to ...
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8092
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often
[not found] <bug-8092-4580@http.gcc.gnu.org/bugzilla/>
2006-04-26 9:10 ` [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often e98cuenc at yahoo dot com
2006-04-26 19:14 ` pinskia at gcc dot gnu dot org
@ 2006-04-26 19:15 ` pinskia at gcc dot gnu dot org
2006-04-26 19:16 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-26 19:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #33 from pinskia at gcc dot gnu dot org 2006-04-26 19:14 -------
to Mark as a dup of bug 15242 which is fixed in 4.0.0.
*** This bug has been marked as a duplicate of 15242 ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8092
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often
[not found] <bug-8092-4580@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2006-04-26 19:15 ` pinskia at gcc dot gnu dot org
@ 2006-04-26 19:16 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-26 19:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #34 from pinskia at gcc dot gnu dot org 2006-04-26 19:16 -------
(In reply to comment #31)
> Any hopes of resurrecting this bug?
well considering it is fixed correctly in 4.0.0, it does not matter.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8092
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2006-04-26 19:16 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2006-04-26 9:10 ` [Bug rtl-optimization/8092] [3.3/3.4/4.0 regression] cross-jump triggers too often e98cuenc at yahoo dot com
2006-04-26 19:14 ` pinskia at gcc dot gnu dot org
2006-04-26 19:15 ` pinskia at gcc dot gnu dot org
2006-04-26 19:16 ` pinskia at gcc dot gnu dot org
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