[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 Jakub Jelinek changed: What|Removed |Added Status|WAITING |RESOLVED CC||jakub at gcc dot gnu.org Resolution|--- |INVALID --- Comment #6 from Jakub Jelinek --- So, this really looks like a bug in gap. If that is not the case, please reopen with more details.
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed||2015-08-25 CC||mpolacek at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #5 from Marek Polacek mpolacek at gcc dot gnu.org --- Probably INVALID then...
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 --- Comment #3 from Andrew Pinski pinskia at gcc dot gnu.org --- Also does using -fwrapv fix the problem? It might be the case gap just has undefined code in it and now we produce better code.
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 Alexander Fomin afomin.mailbox at gmail dot com changed: What|Removed |Added CC||afomin.mailbox at gmail dot com --- Comment #2 from Alexander Fomin afomin.mailbox at gmail dot com --- I can see many signed integer overflows on 254.gap compiled with -fsanitize=signed-integer-overflow, mostly caused by multiplication. I'll try to provide a reduced testcase.
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 --- Comment #4 from Alexander Fomin afomin.mailbox at gmail dot com --- Yep, looks like -fwrapv fixes this issue.
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |6.0
[Bug middle-end/67298] [6 Regression] 254.gap in SPEC CPU 2000 is miscompiled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67298 Andrew Pinski pinskia at gcc dot gnu.org changed: What|Removed |Added CC||pinskia at gcc dot gnu.org --- Comment #1 from Andrew Pinski pinskia at gcc dot gnu.org --- This could be a bug in gap. Have you tried using -fsantitized=undefined on the sources? How about a reduced testcase?
