[llvm-bugs] [Bug 45384] [CorrelatedValuePropagation / LazyValueInfo] wrong code generation

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45384

Jonas Paulsson <paulsson at linux.vnet.ibm.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|DUPLICATE                   |FIXED

--- Comment #2 from Jonas Paulsson <paulsson at linux.vnet.ibm.com> ---
(In reply to Florian Hahn from comment #1)
> I think this was indeed what 4878aa3 was supposed to fix. Jonas, do you know
> why non of the public SystemZ bots caught the issue?
> 
> *** This bug has been marked as a duplicate of bug 44949 ***

Ah, I see. Great that you fixed it :-)

I guess this didn't show up on SystemZ until the postgresql-12 package was
built (via clang bootstrapping) and llvm-lto crashed. Is there any
configuration in particular you have in mind?

I tried to cherry-pick your patch (4878aa3) onto llvm10-rc5, but it did not
apply cleanly. I think the Ubuntu release that ships with llvm-10 needs this
patch so I wonder what to do... Could you perhaps help with the merge since you
have worked with it?

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