[Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization

2016-12-09 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78726 --- Comment #5 from Jakub Jelinek --- Author: jakub Date: Fri Dec 9 09:21:36 2016 New Revision: 243476 URL: https://gcc.gnu.org/viewcvs?rev=243476&root=gcc&view=rev Log: PR tree-optimization/78726 * tree-ssa-reassoc.c (make_new_

[Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization

2016-12-08 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78726 Jakub Jelinek changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned a

[Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization

2016-12-08 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78726 --- Comment #3 from Jakub Jelinek --- Most likely one of the endless reassoc bugs not properly updating or invalidating range information. Before reassoc1 we have: # RANGE [4294967040, 4294967295] a_11 = (unsigned int) _3; c.1_4 = c; # R

[Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization

2016-12-08 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78726 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug middle-end/78726] [5/6/7 Regression] Incorrect unsigned arithmetic optimization

2016-12-08 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78726 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #1