[llvm-bugs] [Bug 45539] Instcombine enters an infinite loop when optimizing IR

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45539

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CONFIRMED                   |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Sanjay Patel <spatel+llvm at rotateright.com> ---
Constant expressions again...there have been messages on llvm-dev recently
suggesting that those were a mistake.

To get this bug off the queue and not add risk to D68408, I pushed the usual
1-line fix here with a further reduced test:
https://reviews.llvm.org/rG01bcc3e93714

There's another transform just below the changed code that seems like it could
hit the same problem...but I didn't see a conflicting transform on that one at
first glance, so didn't change it yet.

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