https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #15 from Richard Biener ---
Author: rguenth
Date: Thu Jan 26 08:16:37 2017
New Revision: 244918
URL: https://gcc.gnu.org/viewcvs?rev=244918=gcc=rev
Log:
2017-01-26 Richard Biener
Backport from mainline
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #14 from Richard Biener ---
Author: rguenth
Date: Thu Nov 3 13:25:51 2016
New Revision: 241818
URL: https://gcc.gnu.org/viewcvs?rev=241818=gcc=rev
Log:
2016-11-03 Richard Biener
Backport from mainline
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #13 from Richard Biener ---
*** Bug 78195 has been marked as a duplicate of this bug. ***
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
Markus Trippelsdorf changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #11 from Richard Biener ---
Author: rguenth
Date: Thu Sep 29 12:31:02 2016
New Revision: 240617
URL: https://gcc.gnu.org/viewcvs?rev=240617=gcc=rev
Log:
2016-09-29 Richard Biener
PR
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #10 from rguenther at suse dot de ---
On Thu, 29 Sep 2016, trippels at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
>
> --- Comment #8 from Markus Trippelsdorf ---
> Looks like tree-ssa-pre.c also
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #9 from Richard Biener ---
Author: rguenth
Date: Thu Sep 29 07:15:13 2016
New Revision: 240610
URL: https://gcc.gnu.org/viewcvs?rev=240610=gcc=rev
Log:
2016-09-29 Richard Biener
PR
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #8 from Markus Trippelsdorf ---
Looks like tree-ssa-pre.c also needs to be guarded:
0x10c3a273 crash_signal
../../gcc/gcc/toplev.c:337
0x10f30e2c eliminate_dom_walker::before_dom_children(basic_block_def*)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
Markus Trippelsdorf changed:
What|Removed |Added
CC||chengniansun at gmail dot com
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #5 from Markus Trippelsdorf ---
(gdb) p vnresult
$1 = (vn_reference_s *) 0x0
(gdb) p debug_tree(lhs)
unit size
align 32 symtab 0 alias set -1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #4 from Richard Biener ---
Interesting. This means vnresult is NULL. I see we can arrive here through
tree
vn_reference_lookup (tree op, tree vuse, vn_lookup_kind kind,
vn_reference_t *vnresult, bool tbaa_p)
{
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #3 from Markus Trippelsdorf ---
So it looks like r240534 is causing this issue.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #2 from Markus Trippelsdorf ---
0x10c39b13 crash_signal
../../gcc/gcc/toplev.c:337
0x10f818d8 visit_reference_op_store
../../gcc/gcc/tree-ssa-sccvn.c:3613
0x10f818d8 visit_use
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
Richard Biener changed:
What|Removed |Added
Keywords||lto
CC|
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