[llvm-bugs] [Bug 47584] Missed simplifications when shl is used instead of mul

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Sep 20 10:34:00 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=47584

Sanjay Patel <spatel+llvm at rotateright.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Fixed By Commit(s)|                            |7903ae4720
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Sanjay Patel <spatel+llvm at rotateright.com> ---
With the instcombine improvement, the original example collapses to the optimal
code:
https://github.com/llvm/llvm-project/commit/7903ae4720a8c4f3c694954d56293c7507e07945

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