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* [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag [not found] <bug-58531-4@http.gcc.gnu.org/bugzilla/> @ 2013-09-25 16:25 ` guillaume at eulerian dot com 2013-09-25 16:51 ` jakub at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 4+ messages in thread From: guillaume at eulerian dot com @ 2013-09-25 16:25 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58531 --- Comment #1 from Guillaume <guillaume at eulerian dot com> --- Created attachment 30897 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30897&action=edit test.c / Makefile ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag [not found] <bug-58531-4@http.gcc.gnu.org/bugzilla/> 2013-09-25 16:25 ` [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag guillaume at eulerian dot com @ 2013-09-25 16:51 ` jakub at gcc dot gnu.org 2013-09-25 16:55 ` pinskia at gcc dot gnu.org 2013-09-25 17:29 ` guillaume at eulerian dot com 3 siblings, 0 replies; 4+ messages in thread From: jakub at gcc dot gnu.org @ 2013-09-25 16:51 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58531 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- There is nothing weird on it, there is nothing that would mandate particular ordering of different compound literals. And, the testcase invokes undefined behavior, you can't subtract pointers to different arrays. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag [not found] <bug-58531-4@http.gcc.gnu.org/bugzilla/> 2013-09-25 16:25 ` [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag guillaume at eulerian dot com 2013-09-25 16:51 ` jakub at gcc dot gnu.org @ 2013-09-25 16:55 ` pinskia at gcc dot gnu.org 2013-09-25 17:29 ` guillaume at eulerian dot com 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2013-09-25 16:55 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58531 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Invalid as mentioned. There is no requirement for compound literals to be in a certain order in the object file. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag [not found] <bug-58531-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2013-09-25 16:55 ` pinskia at gcc dot gnu.org @ 2013-09-25 17:29 ` guillaume at eulerian dot com 3 siblings, 0 replies; 4+ messages in thread From: guillaume at eulerian dot com @ 2013-09-25 17:29 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58531 --- Comment #4 from Guillaume <guillaume at eulerian dot com> --- Ok i understand. I took a sad brain shortcut assuming a single block declaration was generating an (only possible) increasing address for each compound. This was working on all previous gcc version i used (as far as i remember). That's why it is worrying me. I will correct my mistake and go punish myself ;) Thanks a lot. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-09-25 17:29 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-58531-4@http.gcc.gnu.org/bugzilla/>
2013-09-25 16:25 ` [Bug c/58531] [4.7/4.8 Regression] Strange array element ordering with O1 flag guillaume at eulerian dot com
2013-09-25 16:51 ` jakub at gcc dot gnu.org
2013-09-25 16:55 ` pinskia at gcc dot gnu.org
2013-09-25 17:29 ` guillaume at eulerian dot com
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