[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #11 from Jeffrey A. Law --- Author: law Date: Fri May 9 04:54:00 2014 New Revision: 210254 URL: http://gcc.gnu.org/viewcvs?rev=210254&root=gcc&view=rev Log: 2014-05-08 Jeff Law PR tree-optimization/61009 * tree-ssa-threadedge.c (thread_through_normal_block): Return a tri-state rather than a boolean. When a block is too big to thread through, inform caller via negative return value. (thread_across_edge): If a block was too big for normal threading, then it's too big for a joiner too, so remove temporary equivalences and return immediately. PR tree-optimization/61009 * g++.dg/tree-ssa/pr61009.C: New test. Added: trunk/gcc/testsuite/g++.dg/tree-ssa/pr61009.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-threadedge.c
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #10 from davidxl --- (In reply to Jeffrey A. Law from comment #9) > Sorry, personal issue taking an enormous amount of my time right now. I > have a fully tested patch and just need to twiddle the attached test into an > executable testcase for the regression suite. Can you post the early version of the patch? We can help test it with larger test cases that exposed the problem in the first place. David
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #9 from Jeffrey A. Law --- Sorry, personal issue taking an enormous amount of my time right now. I have a fully tested patch and just need to twiddle the attached test into an executable testcase for the regression suite.
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 davidxl changed: What|Removed |Added CC||xinliangli at gmail dot com --- Comment #8 from davidxl --- (In reply to Jeffrey A. Law from comment #7) > I see what's happening here... I need to think about how best to handle > this situation. Oh how threading across loop backedges perilous. Any update on this issue? David
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #7 from Jeffrey A. Law --- I see what's happening here... I need to think about how best to handle this situation. Oh how threading across loop backedges perilous.
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 Jeffrey A. Law changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-04-30 Ever confirmed|0 |1
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #6 from Teresa Johnson --- On Tue, Apr 29, 2014 at 2:46 PM, ppluzhnikov at google dot com wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 > > --- Comment #4 from Paul Pluzhnikov --- > (In reply to Andrew Pinski from comment #2) >> Most likely related to bug 60902. > > Teresa, could you verify whether r209860 (for PR60902) fixes this one as well? I thought it might be a dup of that too, but I updated today to r209902 and the problem remains. Thanks, Teresa > > -- > You are receiving this mail because: > You reported the bug.
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 Jeffrey A. Law changed: What|Removed |Added CC||law at redhat dot com --- Comment #5 from Jeffrey A. Law --- I really doubt this is related to 60902.
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #4 from Paul Pluzhnikov --- (In reply to Andrew Pinski from comment #2) > Most likely related to bug 60902. Teresa, could you verify whether r209860 (for PR60902) fixes this one as well?
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 Paul Pluzhnikov changed: What|Removed |Added CC||ppluzhnikov at google dot com --- Comment #3 from Paul Pluzhnikov --- Google ref: b/14380607
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #2 from Andrew Pinski --- Most likely related to bug 60902.
[Bug tree-optimization/61009] Incorrect jump threading in dom
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61009 --- Comment #1 from Teresa Johnson --- Created attachment 32710 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32710&action=edit t.C.078t.dom1
