[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 --- Comment #8 from Jakub Jelinek 2012-05-24 11:53:33 UTC --- Author: jakub Date: Thu May 24 11:53:29 2012 New Revision: 187828 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187828 Log: PR tree-optimization/53465 * tree-vrp.c (ex

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 --- Comment #7 from Jakub Jelinek 2012-05-24 11:51:15 UTC --- Author: jakub Date: Thu May 24 11:51:09 2012 New Revision: 187827 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187827 Log: PR tree-optimization/53465 * tree-vrp.c (ex

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 Jakub Jelinek changed: What|Removed |Added Status|NEW |ASSIGNED AssignedTo|unassigned at

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread rguenther at suse dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 --- Comment #5 from rguenther at suse dot de 2012-05-24 07:57:58 UTC --- On Thu, 24 May 2012, jakub at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 > > --- Comment #4 from Jakub Jelinek 2012-05-24 > 07:42:26 UTC

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 --- Comment #4 from Jakub Jelinek 2012-05-24 07:42:26 UTC --- Dropping all might pessimize some code (of course, this is VR_UNDEFINED, so the question is if we need to care that much about broken code), like: int foo (int x, int y) { int z; i

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread rguenther at suse dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 --- Comment #3 from rguenther at suse dot de 2012-05-24 07:29:52 UTC --- On Thu, 24 May 2012, jakub at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 > > Jakub Jelinek changed: > >What|Removed

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-24 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #2 f

[Bug tree-optimization/53465] [4.7 regression] wrong code with -O1 -ftree-vrp

2012-05-23 Thread hjl.tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53465 H.J. Lu changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|