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* [Bug middle-end/37921] __builtin_constant_p seems to be giving false positives
[not found] <bug-37921-4@http.gcc.gnu.org/bugzilla/>
@ 2014-02-05 9:46 ` mpolacek at gcc dot gnu.org
0 siblings, 0 replies; 3+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2014-02-05 9:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37921
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
CC| |mpolacek at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #10 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Seems to be fixed a long time ago.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/37921] __builtin_constant_p seems to be giving false positives
2008-10-26 18:17 [Bug c/37921] New: " arjan at linux dot intel dot com
2010-01-02 19:35 ` [Bug middle-end/37921] " rguenth at gcc dot gnu dot org
@ 2010-01-02 20:33 ` manu at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: manu at gcc dot gnu dot org @ 2010-01-02 20:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from manu at gcc dot gnu dot org 2010-01-02 20:33 -------
(In reply to comment #8)
> Re-confirmed. The issue is that we fold __builtin_constant_p only after
> VRP1 so the dead code remains and we warn about it.
Perhaps this is the root cause of both PR35392 and PR35903.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37921
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/37921] __builtin_constant_p seems to be giving false positives
2008-10-26 18:17 [Bug c/37921] New: " arjan at linux dot intel dot com
@ 2010-01-02 19:35 ` rguenth at gcc dot gnu dot org
2010-01-02 20:33 ` manu at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-01-02 19:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from rguenth at gcc dot gnu dot org 2010-01-02 19:35 -------
Re-confirmed. The issue is that we fold __builtin_constant_p only after
VRP1 so the dead code remains and we warn about it.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |middle-end
Keywords| |diagnostic
Known to fail| |4.5.0
Last reconfirmed|2008-10-26 22:40:30 |2010-01-02 19:35:34
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37921
^ permalink raw reply [flat|nested] 3+ messages in thread
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Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-37921-4@http.gcc.gnu.org/bugzilla/>
2014-02-05 9:46 ` [Bug middle-end/37921] __builtin_constant_p seems to be giving false positives mpolacek at gcc dot gnu.org
2008-10-26 18:17 [Bug c/37921] New: " arjan at linux dot intel dot com
2010-01-02 19:35 ` [Bug middle-end/37921] " rguenth at gcc dot gnu dot org
2010-01-02 20:33 ` manu at gcc dot gnu dot org
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