[Bug tree-optimization/49513] DOM inhibits if-conversion and vectorization

law at redhat dot com gcc-bugzilla@gcc.gnu.org
Fri Jul 8 21:12:00 GMT 2011


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49513

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

           What    |Removed                     |Added
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                 CC|                            |law at redhat dot com

--- Comment #4 from Jeffrey A. Law <law at redhat dot com> 2011-07-08 21:11:09 UTC ---
Prohibiting this in DOM would effectively prevent DOM from doing any loop
rotations.

I don't see a good way to solve this...  Ideally we'd have a way to know if a
particular IF is convertable and we could avoid threading through it.  

Jeff



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