[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-10-03 Thread law at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #12 from Jeffrey A. Law --- Author: law Date: Mon Oct 3 19:28:24 2016 New Revision: 240727 URL: https://gcc.gnu.org/viewcvs?rev=240727&root=gcc&view=rev Log: PR tree-optimization/71550 PR tree-optimization/71403

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-15 Thread rguenther at suse dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #11 from rguenther at suse dot de --- On Wed, 15 Jun 2016, hubicka at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 > > Jan Hubicka changed: > >What|Removed |Added

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-15 Thread hubicka at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 Jan Hubicka changed: What|Removed |Added CC||rguenther at suse dot de --- Comment #10 f

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-13 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 Jeffrey A. Law changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-13 Thread law at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #8 from Jeffrey A. Law --- Author: law Date: Mon Jun 13 20:55:59 2016 New Revision: 237403 URL: https://gcc.gnu.org/viewcvs?rev=237403&root=gcc&view=rev Log: PR tree-optimization/71403 * tree-ssa-threadbackward.c

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-12 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #7 from Jeffrey A. Law --- So, to follow-up on my own comment. We start with 3 nested loops. The first backward jump threading pass threads the backedge of the outermost loop to the head of the middle loop. That essentially combine

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-12 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #6 from Jeffrey A. Law --- But what doesn't make sense here Jan is jump threading, has had the ability to peel loop iterations forever, so if we're storing that data prior to threading and expecting it to persist accurately across jum

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-11 Thread hubicka at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 Jan Hubicka changed: What|Removed |Added CC||hubicka at gcc dot gnu.org --- Comment #5

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-10 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #4 from Jeffrey A. Law --- *** Bug 71417 has been marked as a duplicate of this bug. ***

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-10 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 --- Comment #3 from Jeffrey A. Law --- *** Bug 71466 has been marked as a duplicate of this bug. ***

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-10 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 Jeffrey A. Law changed: What|Removed |Added CC||law at redhat dot com --- Comment #2 fr

[Bug tree-optimization/71403] [7 Regression] wrong code (segfault) at -O3 on x86_64-linux-gnu

2016-06-04 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71403 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|