[Bug 78669] New: [r600g with -O3] layered-rendering/clear-color-all-types 3d single_level fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78669

          Priority: medium
            Bug ID: 78669
          Assignee: dri-devel at lists.freedesktop.org
           Summary: [r600g with -O3]
                    layered-rendering/clear-color-all-types 3d
                    single_level fails
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: david.heidelberger at ixit.cz
          Hardware: Other
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

$ bin/gl-3.2-layered-rendering-clear-color-all-types 3d single_level -fbo -auto

Clearing each layer individually
Probing level 0, layer 0
Probing level 0, layer 1
Probing level 0, layer 2
Probing level 0, layer 3
Clearing all layers in miplevel 0 at once
Probing level 0, layer 0
Probing level 0, layer 1
Probing level 0, layer 2
Probe color at (0,0)
  Expected: 0.000000 1.000000 0.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 1.000000
Probing level 0, layer 3
Probe color at (0,0)
  Expected: 0.000000 1.000000 0.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 1.000000

This happen with mesa compiled with -O3. With -Og is perfectly fine.
Kernel: 3.12.18
Mesa: git (1646f4d0fb0efec04dce62b6dd4d974206acc8ac)
Card: Radeon HD 6550 (3870K APU)

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