[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390 Jakub Jelinek changed: What|Removed |Added Status|NEW |RESOLVED CC||jakub at gcc dot gnu.org Resolution||FIXED --- Comment #13 from Jakub Jelinek 2012-03-13 13:11:24 UTC --- Fixed in 4.5+, 4.4 is no longer supported.
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390 Jakub Jelinek changed: What|Removed |Added Target Milestone|4.4.6 |4.4.7
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390 Jakub Jelinek changed: What|Removed |Added Target Milestone|4.4.5 |4.4.6
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
-- jakub at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|4.4.4 |4.4.5 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
-- jakub at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|4.4.3 |4.4.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #12 from pinskia at gcc dot gnu dot org 2009-11-18 04:02 --- *** Bug 42087 has been marked as a duplicate of this bug. *** -- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||riddikulus at verizon dot ||net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #11 from paolo dot carlini at oracle dot com 2009-11-17 15:15 --- Yes. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #10 from scovich at gmail dot com 2009-11-17 11:16 --- (In reply to comment #3) > the warning is for dead code. Thus this is not a > wrong-code problem. Just to verify, does this (and comment #7) mean that the warning is harmless and can be ignored? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #9 from paolo dot carlini at oracle dot com 2009-11-17 11:09 --- *** Bug 42077 has been marked as a duplicate of this bug. *** -- paolo dot carlini at oracle dot com changed: What|Removed |Added CC||scovich at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
-- jakub at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|4.4.2 |4.4.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #8 from paolo dot carlini at oracle dot com 2009-10-06 09:23 --- Then it's easy to fix in 4_4 too ;) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #7 from rguenther at suse dot de 2009-10-06 09:01 --- Subject: Re: [4.4 Regression] Bogus aliasing warning with std::set On Mon, 5 Oct 2009, pinskia at gcc dot gnu dot org wrote: > --- Comment #6 from pinskia at gcc dot gnu dot org 2009-10-05 20:16 > --- > This is fixed on the trunk Indeed - the warning code was removed ;) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #6 from pinskia at gcc dot gnu dot org 2009-10-05 20:16 --- This is fixed on the trunk -- pinskia at gcc dot gnu dot org changed: What|Removed |Added Summary|[4.4/4.5 Regression] Bogus |[4.4 Regression] Bogus |aliasing warning with |aliasing warning with |std::set|std::set http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 Regression] Bogus aliasing warning with std::set
--- Comment #5 from rguenth at gcc dot gnu dot org 2009-03-08 15:42 --- Only the diagnostic part is a regression. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Priority|P3 |P2 Summary|[4.4 regression] Bogus |[4.4 Regression] Bogus |aliasing warning with |aliasing warning with |std::set|std::set http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
[Bug tree-optimization/39390] [4.4 regression] Bogus aliasing warning with std::set
--- Comment #4 from rguenth at gcc dot gnu dot org 2009-03-06 14:16 --- Scheduling another pass_phi_only_cprop after VRP removes the single-argument PHI nodes (I think that really cfg-cleanup should do this, as they usually result from edge removal). While this is reasonably cheap it doesn't get rid of the conditionals but that would require a forwprop run which is not that cheap (it requires only the forward_propagate_into_gimple_cond () pieces, but has to run after removing single-argument PHIs, thus cannot run at VRP substitution time). Thus, the following would fix it: Index: passes.c === --- passes.c(revision 144665) +++ passes.c(working copy) @@ -611,6 +611,8 @@ init_optimization_passes (void) NEXT_PASS (pass_copy_prop); NEXT_PASS (pass_merge_phi); NEXT_PASS (pass_vrp); + NEXT_PASS (pass_phi_only_cprop); + NEXT_PASS (pass_forwprop); NEXT_PASS (pass_dce); NEXT_PASS (pass_cselim); NEXT_PASS (pass_tree_ifcombine); alternatively only adding pass_phi_only_cprop and calling forward_propagate_into_gimple_cond from pass_tree_ifcombine. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39390
