[llvm-bugs] [Bug 44996] assertion "L->isLCSSAForm(*DT) && "Loop not left in LCSSA form after LICM!"" failed

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Feb 26 07:18:57 PST 2020


Hans Wennborg <hans at chromium.org> changed:

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

--- Comment #9 from Hans Wennborg <hans at chromium.org> ---
(In reply to listmail from comment #4)
> commit 14845b2c459021e3dbf2ead52d707d4a7db40cbb (HEAD -> master)
> Author: Philip Reames <listmail at philipreames.com>
> Date:   Tue Feb 25 08:56:53 2020 -0800
>     Revert "[LICM] Support hosting of dynamic allocas out of loops"
>     This reverts commit 8d22100f66c4170510c6ff028c60672acfe1cff9.
>     There was a functional regression reported
> (https://bugs.llvm.org/show_bug.cgi?id=44996).  I'm not actually sure the
> patch is wrong, but I don't have time to investigate currently, and this
> line of work isn't something I'm likely to get back to quickly.

Cherry-picked to 10.x in 48d24465668b268ec0aa39b62cabab5ee50e961d

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