[llvm-bugs] [Bug 41267] consider @clz() and @ctz() to reduce down bit-tests

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Apr 10 11:35:51 PDT 2019


https://bugs.llvm.org/show_bug.cgi?id=41267

Shawn Landden <slandden at gmail.com> changed:

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

--- Comment #6 from Shawn Landden <slandden at gmail.com> ---
This can always be done with XOR (and that is a bug). @clz() is only relevent
on multi-way switches, to reduce them down.

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