[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-06-27 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P2

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-06-27 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|4.3.6 |4.4.7 ---

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-03-01 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #8 from asharif at gcc dot gnu.org 2011-03-01 19:39:49 UTC --- Ping. Andrew or Richard, how can I rework my patch to address this issue? Thanks,

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-02-03 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #3 from asharif at gcc dot gnu.org 2011-02-03 22:19:10 UTC --- Created attachment 23242 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=23242 This patch fixes the problem, but may be pessimistic.

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-02-03 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #4 from asharif at gcc dot gnu.org 2011-02-03 22:19:37 UTC --- Richard, check out the attached patch and let me know your thoughts.

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-02-03 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #5 from Andrew Pinski pinskia at gcc dot gnu.org 2011-02-03 22:23:36 UTC --- I almost want to say LOOP_VINFO_NITERS should not have abnormal SSA's to begin with.

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-02-03 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #6 from asharif at gcc dot gnu.org 2011-02-03 22:25:01 UTC --- What happens is tree vectorization introduces code in the preheader to check for the loop iterations at runtime. The expression holding the number of iterations may contain

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-02-03 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #7 from asharif at gcc dot gnu.org 2011-02-03 22:26:48 UTC --- (In reply to comment #5) I almost want to say LOOP_VINFO_NITERS should not have abnormal SSA's to begin with. Andrew, shouldn't it be fine to have abnormal SSAs as long

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-01-26 Thread asharif at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 --- Comment #2 from asharif at gcc dot gnu.org 2011-01-26 21:50:26 UTC --- It seems like this bug is reproducible on older versions of the trunk. This change: http://gcc.gnu.org/viewcvs?view=revisionrevision=146776 seems to suppress it (or fix

[Bug tree-optimization/47447] [4.3/4.4 Regression] Unable to coalesce ssa_names x and y ICE in tree-ssa-coalesce.c when -O3 is used

2011-01-25 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW