[llvm-bugs] [Bug 52032] Suboptimal materialization of += 1 as -= -1

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=52032

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
 Fixed By Commit(s)|                            |285b8abce483
             Status|NEW                         |RESOLVED

--- Comment #2 from Sanjay Patel <spatel+llvm at rotateright.com> ---
We should use broadcast and fold loads after:
https://reviews.llvm.org/rG285b8abce483
...but as I mentioned in the commit message, I'm not sure if this results in a
perf win even if it looks better. 

Using pcmpeq to create an all-ones vector still seems like the right trade-off
for most cases.

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