[Bug 79155] New: [Tesseract Game] Global Illumination: Medium Causes Color Distortion

[Bug 79155] New: [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

          Priority: medium
            Bug ID: 79155
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [Tesseract Game] Global Illumination: Medium Causes
                    Color Distortion
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: mmstickman@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

Created attachment 99679
  --> https://bugs.freedesktop.org/attachment.cgi?id=99679&action=edit
Screenshot of graphical error

Currently using a Radeon HD 7950 with the latest git of mesa. Setting Global
Illumination to Medium or above causes graphical corruption.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

Ilia Mirkin <imirkin@alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #99679|text/plain                  |image/jpeg
          mime type|                            |

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #1 from mmstickman@gmail.com ---
This bug does not occur on my Radeon HD 6850 or 4870 machines.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #2 from smoki <smoki00790@gmail.com> ---

 Do you use Tom's spill-fixes branch? I guess answer is 'yes' :).

 Without that branch a got "LLVM ERROR: ran out of registers during register
allocation" when i tried to load 'complex' map with any Global Illumination
settings, but for example 'test_ctf' loads fine :).

 r600 is of course not affected because it does not use llvm here like radeonsi
do.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #3 from mmstickman@gmail.com ---
I'm using the precompiled packages from the mesa git repo from archlinux.fr on
my Arch Linux system so that would mean that they are shipping the packages
with that branch.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #4 from smoki <smoki00790@gmail.com> ---

 This bug changed a little with current git, because there is no color changes
now, but it does not work right llvm failed and seems just turn it off... At
least there is no color changes :)

LLVM triggered Diagnostic Handler: SIInstrInfo::storeRegToStackSlot - Can't
spill VGPR!
LLVM triggered Diagnostic Handler: SIInstrInfo::loadRegToStackSlot - Can't
retrieve spilled VGPR!
LLVM triggered Diagnostic Handler: SIInstrInfo::storeRegToStackSlot - Can't
spill VGPR!
........
LLVM triggered Diagnostic Handler: SIInstrInfo::storeRegToStackSlot - Can't
spill VGPR!
LLVM triggered Diagnostic Handler: SIInstrInfo::loadRegToStackSlot - Can't
retrieve spilled VGPR!
radeon_llvm_compile: Processing Diag Flag
LLVM failed to compile shader
EE si_state.c:2214 si_shader_select - Failed to build shader variant (type=1) 1

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #5 from smoki <smoki00790@gmail.com> ---

  Currently when i try to check medium app just segfaulted.

 ...
 LLVM triggered Diagnostic Handler: SIInstrInfo::storeRegToStackSlot - Do not
know how to spill register
LLVM triggered Diagnostic Handler: SIInstrInfo::loadRegFromStackSlot - Do not
know how to restore register
radeon_llvm_compile: Processing Diag Flag
LLVM failed to compile shader
EE si_state.c:2289 si_shader_select - Failed to build shader variant (type=1) 1
Segmentation fault

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #6 from smoki <smoki00790@gmail.com> ---
 At least it does not segfault on c74be01e80fcdd7feabc0f27df4aebe66abb626e, so
it some of those Marek's commits after that.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

--- Comment #7 from smoki <smoki00790@gmail.com> ---

 This is fixed for me in current llvm-3.7 + mesa git.

 mmstickman, you might wanna recheck this for you card and eventually to close
this bug.

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[Bug 79155] [Tesseract Game] Global Illumination: Medium Causes Color Distortion

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https://bugs.freedesktop.org/show_bug.cgi?id=79155

Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #8 from Michel Dänzer <michel@daenzer.net> ---
Fixed with current Mesa and LLVM Git.

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