[Bug 64096] New: LLVM RV790 etqw regression since R600: Packetize instructions

[Bug 64096] New: LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

          Priority: medium
            Bug ID: 64096
          Assignee: dri-devel@lists.freedesktop.org
           Summary: LLVM RV790 etqw regression since R600: Packetize
                    instructions
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: adf.lists@gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

rv790 with etqw getting a green tint in levels on current llvm/mesa heads.

llvm bisected to below, while actually sitting on that there are more
corruptions than just the tint.

commit 25f259cde28860ea76c2f5628010968945a28edb
Author: Vincent Lejeune <vljn@ovi.com>
Date:   Tue Apr 30 00:14:27 2013 +0000

    R600: Packetize instructions

    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180760
91177308-0d34-0410-b5e6-96231b3b80d8

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #1 from Andy Furniss <adf.lists@gmail.com> ---
Testing further some of the mesa demos are also wrong - not that I have re-
bisected, just assume same issue, on heads -

gloss = blank.

gears, fbo_firecube, gearbox = too dark.

shadowtex = shadow misaligned

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #2 from vincent <vljn@ovi.com> ---
Created attachment 78720
  --> https://bugs.freedesktop.org/attachment.cgi?id=78720&action=edit
Disable bank_swizzle

Hi,

there is a bug that makes mesa change bank_swizzle if they are provided by
backend,
can you apply this patch on top of "R600: Packetize instructions" commit and
see if you can bisect further ?

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #3 from Andy Furniss <adf.lists@gmail.com> ---
(In reply to comment #2)
> Created attachment 78720 [details] [review]
> Disable bank_swizzle
> 
> Hi,
> 
> there is a bug that makes mesa change bank_swizzle if they are provided by
> backend,
> can you apply this patch on top of "R600: Packetize instructions" commit and
> see if you can bisect further ?

The patch doesn't change anything.

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #4 from vincent <vljn@ovi.com> ---
Created attachment 78783
  --> https://bugs.freedesktop.org/attachment.cgi?id=78783&action=edit
Prevent PV on trans inst

Hi,

does this patch help ? (on head)

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #5 from vincent <vljn@ovi.com> ---
Created attachment 78786
  --> https://bugs.freedesktop.org/attachment.cgi?id=78786&action=edit
Rework PV

Sorry, I tested previous patch and it didn't work.

However this new patch should fix gears, and probably others tests too.
(Apply it on HEAD)

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

--- Comment #6 from Andy Furniss <adf.lists@gmail.com> ---
(In reply to comment #5)
> Created attachment 78786 [details] [review]
> Rework PV
> 
> Sorry, I tested previous patch and it didn't work.
> 
> However this new patch should fix gears, and probably others tests too.
> (Apply it on HEAD)

It fixes the demos and etqw for me.

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[Bug 64096] LLVM RV790 etqw regression since R600: Packetize instructions

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https://bugs.freedesktop.org/show_bug.cgi?id=64096

Andy Furniss <adf.lists@gmail.com> changed:

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

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