[Bug 62696] New: [r300g, bisected] Around 50 piglit vs variable-indexing tests fails after "glsl_to_tgsi: allocate arrays separately v2"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62696

          Priority: medium
            Bug ID: 62696
          Keywords: regression
                CC: deathsimple at vodafone.de
          Assignee: dri-devel at lists.freedesktop.org
           Summary: [r300g, bisected] Around 50 piglit vs
                    variable-indexing tests fails after "glsl_to_tgsi:
                    allocate arrays separately v2"
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: pavel.ondracka at email.cz
          Hardware: Other
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r300
           Product: Mesa

Created attachment 76962
  --> https://bugs.freedesktop.org/attachment.cgi?id=76962&action=edit
RADEON_DEBUG=fp,vp output with latest mesa master

first bad commit:
commit 3f67251e3d0ce61a0e7fc16de91de6fb49cad768
Author: Christian König <christian.koenig at amd.com>
Date:   Sun Mar 10 14:33:29 2013 +0100

    glsl_to_tgsi: allocate arrays separately v2

    Instead of allocating everything as temporaries, use the
    new array allocation functions.

    v2: fix bug in simplify_cmp, declare arrays on demand

example test output:
./bin/shader_runner
tests/spec/glsl-1.20/execution/variable-indexing/vs-temp-array-mat2-index-col-row-rd.shader_test
-auto
r300: DRM version: 2.29.0, Name: ATI RV530, ID: 0x71c5, GB: 1, Z: 2
r300: GART size: 509 MB, VRAM size: 256 MB
r300: AA compression RAM: YES, Z compression RAM: YES, HiZ RAM: YES
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (10,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.450980 0.549020 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (10,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (25,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.450980 0.549020 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (25,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (50,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (50,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (65,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.549020 0.450980 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (65,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (90,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (90,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (105,10)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
fallback: no matching format for GL_RGB, GL_FLOAT
Probe at (105,25)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
PIGLIT: {'result': 'fail' }

(RADEON_DEBUG=fp,vp outputs before bad commit and with latest master attached)

GPU:RV530
Mesa:ec9c3882d949298366c872f766d3d18c6ae93f8e
Kernel: 3.8.3-103.fc17.i686

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