[llvm-bugs] [Bug 37973] Wrong code generation for CTLZ pattern

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Jun 28 10:03:49 PDT 2018


https://bugs.llvm.org/show_bug.cgi?id=37973

Craig Topper <craig.topper at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|ASSIGNED                    |RESOLVED

--- Comment #19 from Craig Topper <craig.topper at gmail.com> ---
Another small mistake in what I said. lzcnt aliases to bsr not bsf. tzcnt
aliases to bsf. And tznct and bsf behavior is identical for non-zero values. So
only lzcnt/bsr have this difference.

Anyway resolving this as invaliad.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20180628/3dec8f53/attachment.html>


More information about the llvm-bugs mailing list