https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #12 from Jeffrey A. Law ---
Author: law
Date: Mon Mar 7 17:01:54 2016
New Revision: 234036
URL: https://gcc.gnu.org/viewcvs?rev=234036=gcc=rev
Log:
PR tree-optimization/69740
* cfghooks.c (remove_edge): Request loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
Richard Biener changed:
What|Removed |Added
Keywords||ice-checking
Priority|P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #11 from Jeffrey A. Law ---
Author: law
Date: Sun Feb 28 06:43:07 2016
New Revision: 233788
URL: https://gcc.gnu.org/viewcvs?rev=233788=gcc=rev
Log:
Revert
2016-02-26 Richard Biener
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
Jeffrey A. Law changed:
What|Removed |Added
Status|RESOLVED|REOPENED
See Also|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #6 from Jeffrey A. Law ---
Author: law
Date: Fri Feb 26 18:17:02 2016
New Revision: 233754
URL: https://gcc.gnu.org/viewcvs?rev=233754=gcc=rev
Log:
PR tree-optimization/69740
* cfghooks.c (remove_edge): Request loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #5 from Jeffrey A. Law ---
The testcase in c#3 is another instance of this problem, but triggered by
sinking. I'd already been pondering the benefit/risk of attacking this at a
higher level (like in delete_basic_block) and seeing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
Jeffrey A. Law changed:
What|Removed |Added
CC||law at redhat dot com
--- Comment #4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #3 from Qirun Zhang ---
(In reply to Jakub Jelinek from comment #1)
> Started with r218566.
Here is a similar case. The stack trace is almost the same as in the original
RP's. However, this one crashes the current trunk at -O3 only
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
--- Comment #2 from Jakub Jelinek ---
So, in *.mergephi1 we have:
:
b.0_4 = b;
if (b.0_4 != 0)
goto ;
else
goto ;
:
c[0] = 0;
l1:
c ={v} {CLOBBER};
:
a.1_7 = a;
if (a.1_7 != 0)
goto (l1);
else
goto ;
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69740
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
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