[llvm-bugs] [Bug 33322] wrong code at -Os and above in CFL AA on x86_64-linux-gnu (with "-mllvm -use-cfl-aa=anders")

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Jun 25 16:14:17 PDT 2017


https://bugs.llvm.org/show_bug.cgi?id=33322

Davide Italiano <davide at freebsd.org> changed:

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

--- Comment #11 from Davide Italiano <davide at freebsd.org> ---
(In reply to George Burgess from comment #10)
> (Just saying this without looking hard at the repro; I'll hopefully have
> time to look more closely later today)
> 
> Thank you both for working on this!
> 
> FWIW, CFLAA -- both Anders and Steens -- have at least one known bug when
> they encounter things like insertelement/extractelement and/or vector
> equivalents (r304275). My impression is that CFLSteens is otherwise
> considered "working", the conclusion with Anders at the end of the GSOC
> internship was "it's still subtly broken and we're not quite sure why."

This is the same bug of #33339 (confirmed with my patch).
Thank you Zhendong/George.

*** This bug has been marked as a duplicate of bug 33339 ***

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