[Bug 90266] Unigine Heaven 4.0 logging vm faults since radeon/llvm: Run LLVM's instruction combining pass

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=90266

--- Comment #5 from Andy Furniss <adf.lists@gmail.com> ---
(In reply to Tom Stellard from comment #4)
> (In reply to Andy Furniss from comment #0)
> > Related to 
> > 
> > https://bugs.freedesktop.org/show_bug.cgi?id=90056
> > 
> > Unlike valley I thought heaven 4.0 wasn't affected by above as it runs and
> > looks OK.
> > 
> > There is however an issue, again "fixed" by reverting mesa commit 
> > 
> 
> Thanks for the report, I just have a few qustions:
> 
> Are there any problems with Valley after the fix for Bug 90056 was committed?

No, Valley is OK

> Does the problem reported in this bug for Heaven still happen if you keep
> the InsCombine pass enabled, but revert the fix from Bug 90056?

Yes with or without the fix Heaven logs the errors.

Initially tested on an older llvm with and without the patch from -

https://bugs.freedesktop.org/show_bug.cgi?id=90056#c14

and again just now by reverting "R600/SI: Fix verifier errors from the
SIAnnotateControlFlow" on a more recent llvm.

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