[Mesa-dev] [Bug 60706] New: [llvmpipe] piglit fbo-blending-formats GL_EXT_texture_snorm regression with llvm-3.3svn

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Feb 11 16:52:35 PST 2013 

https://bugs.freedesktop.org/show_bug.cgi?id=60706

          Priority: medium
            Bug ID: 60706
          Keywords: regression
                CC: sroland at vmware.com
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [llvmpipe] piglit fbo-blending-formats
                    GL_EXT_texture_snorm regression with llvm-3.3svn
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: vlee at freedesktop.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Other
           Product: Mesa

mesa: 44a5d7371c97d71d7dc0f7e81bf0a91cf7add0e0 (master)

$ llvm-config --version
3.3svn

$ ./bin/fbo-blending-formats GL_EXT_texture_snorm -auto
Using test set: GL_EXT_texture_snorm
Testing GL_RED_SNORM
PIGLIT:subtest {'GL_RED_SNORM' : 'pass'}
Testing GL_R8_SNORM
PIGLIT:subtest {'GL_R8_SNORM' : 'pass'}
Testing GL_RG_SNORM
PIGLIT:subtest {'GL_RG_SNORM' : 'pass'}
Testing GL_RG8_SNORM
PIGLIT:subtest {'GL_RG8_SNORM' : 'pass'}
Testing GL_RGB_SNORM
PIGLIT:subtest {'GL_RGB_SNORM' : 'pass'}
Testing GL_RGB8_SNORM
PIGLIT:subtest {'GL_RGB8_SNORM' : 'pass'}
Testing GL_RGBA_SNORM
PIGLIT:subtest {'GL_RGBA_SNORM' : 'pass'}
Testing GL_RGBA8_SNORM
PIGLIT:subtest {'GL_RGBA8_SNORM' : 'pass'}
Testing GL_ALPHA_SNORM
PIGLIT:subtest {'GL_ALPHA_SNORM' : 'pass'}
Testing GL_ALPHA8_SNORM
PIGLIT:subtest {'GL_ALPHA8_SNORM' : 'pass'}
Testing GL_LUMINANCE_SNORM
PIGLIT:subtest {'GL_LUMINANCE_SNORM' : 'pass'}
Testing GL_LUMINANCE8_SNORM
PIGLIT:subtest {'GL_LUMINANCE8_SNORM' : 'pass'}
Testing GL_LUMINANCE_ALPHA_SNORM
PIGLIT:subtest {'GL_LUMINANCE_ALPHA_SNORM' : 'pass'}
Testing GL_LUMINANCE8_ALPHA8_SNORM
PIGLIT:subtest {'GL_LUMINANCE8_ALPHA8_SNORM' : 'pass'}
Testing GL_INTENSITY_SNORM
PIGLIT:subtest {'GL_INTENSITY_SNORM' : 'pass'}
Testing GL_INTENSITY8_SNORM
PIGLIT:subtest {'GL_INTENSITY8_SNORM' : 'pass'}
Testing GL_R16_SNORM
Probe at (53,0)
  Expected: 0.810000 0.000000 0.000000 1.000000
  Observed: 0.794366 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
PIGLIT:subtest {'GL_R16_SNORM' : 'fail'}
Testing GL_RG16_SNORM
Probe at (32,0)
  Expected: 0.480000 0.800000 0.000000 1.000000
  Observed: 0.495590 0.800012 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.360000 0.000000 1.000000
  Observed: 0.825587 0.375622 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.850000 0.000000 1.000000
  Observed: 0.791131 0.881130 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.800000 0.000000 1.000000
  Observed: 0.791131 0.800012 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
PIGLIT:subtest {'GL_RG16_SNORM' : 'fail'}
Testing GL_RGB16_SNORM
Probe at (32,0)
  Expected: 0.480000 0.800000 0.680000 1.000000
  Observed: 0.495590 0.800012 0.679983 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.360000 0.560000 1.000000
  Observed: 0.825587 0.375622 0.560045 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.850000 0.730000 1.000000
  Observed: 0.791131 0.881130 0.730003 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.800000 0.720000 1.000000
  Observed: 0.791131 0.800012 0.735557 1.000000
  when testing FBO result, blending with SRC_ALPHA.
PIGLIT:subtest {'GL_RGB16_SNORM' : 'fail'}
Testing GL_RGBA16_SNORM
Probe at (32,0)
  Expected: 0.480000 0.800000 0.680000 0.500000
  Observed: 0.495590 0.800012 0.679983 0.515580
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.360000 0.560000 0.700000
  Observed: 0.825587 0.375622 0.560045 0.731162
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.850000 0.730000 0.740000
  Observed: 0.791131 0.881130 0.730003 0.755577
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.350000 0.600000 0.700000
  Observed: 0.881130 0.381146 0.615558 0.731162
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.800000 0.720000 0.740000
  Observed: 0.791131 0.800012 0.735557 0.755577
  when testing FBO result, blending with SRC_ALPHA.
PIGLIT:subtest {'GL_RGBA16_SNORM' : 'fail'}
Testing GL_ALPHA16_SNORM
Probe at (53,0)
  Expected: 0.000000 0.000000 0.000000 0.700000
  Observed: 0.000000 0.000000 0.000000 0.715567
  when testing FBO result, blending with DST_COLOR.
Probe at (96,0)
  Expected: 0.000000 0.000000 0.000000 0.700000
  Observed: 0.000000 0.000000 0.000000 0.715567
  when testing FBO result, blending with DST_ALPHA.
PIGLIT:subtest {'GL_ALPHA16_SNORM' : 'fail'}
Testing GL_LUMINANCE16_SNORM
Probe at (53,0)
  Expected: 0.810000 0.000000 0.000000 1.000000
  Observed: 0.794366 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
PIGLIT:subtest {'GL_LUMINANCE16_SNORM' : 'fail'}
Testing GL_LUMINANCE16_ALPHA16_SNORM
Probe at (32,0)
  Expected: 0.480000 0.000000 0.000000 0.500000
  Observed: 0.495590 0.000000 0.000000 0.515580
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.000000 0.000000 0.700000
  Observed: 0.825587 0.000000 0.000000 0.731162
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.000000 0.000000 0.740000
  Observed: 0.791131 0.000000 0.000000 0.755577
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.000000 0.000000 0.700000
  Observed: 0.881130 0.000000 0.000000 0.731162
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.000000 0.000000 0.740000
  Observed: 0.791131 0.000000 0.000000 0.755577
  when testing FBO result, blending with SRC_ALPHA.
PIGLIT:subtest {'GL_LUMINANCE16_ALPHA16_SNORM' : 'fail'}
Testing GL_INTENSITY16_SNORM
Probe at (53,0)
  Expected: 0.810000 0.000000 0.000000 1.000000
  Observed: 0.794366 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
PIGLIT:subtest {'GL_INTENSITY16_SNORM' : 'fail'}
PIGLIT: {'result': 'fail' }


49f8825c49871ca956c7ed21b096f3835311f57e is the first bad commit
commit 49f8825c49871ca956c7ed21b096f3835311f57e
Author: Roland Scheidegger <sroland at vmware.com>
Date:   Fri Feb 1 08:34:36 2013 -0800

    gallivm: fix typo in lp_build_mul_norm

    The signed case didn't do what the comment indicated. Should increase
rounding
    precision (at the expense of performance since the former code was
effectively
    a no-op).

    Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

:040000 040000 3f2996be29d9f8fd4f6f1f92d38f0c1eac9c76a2
527a115635b3c45dbd77529ed7ee7602adf6af71 M    src
bisect run success

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