[Bug tree-optimization/63537] [5/6 Regression] Missed optimization: Loop unrolling adds extra copy when returning aggregate

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63537

Jeffrey A. Law <law at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |law at redhat dot com
            Summary|[5/6/7 Regression] Missed   |[5/6 Regression] Missed
                   |optimization: Loop          |optimization: Loop
                   |unrolling adds extra copy   |unrolling adds extra copy
                   |when returning aggregate    |when returning aggregate

--- Comment #8 from Jeffrey A. Law <law at redhat dot com> ---
This was fixed by Jan's change from June 16:

commit 8c1879bcebc5decbb6c0e7081f7a13c6a740b590
Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu Jun 16 12:54:31 2016 +0000

        * g++.dg/vect/pr36648.cc: Disable cunrolli
        * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Fix estimation
        of comparsions in the last iteration.


    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237527
138bc75d-0d04-0410-961f-82ee72b054a4