[r300g] Anno1701: flickering colorful corruption over some models

Submitted by Pavel Ondračka

Assigned to Default DRI bug account

Link to original bug (#60965)

Description

Created attachment 74949 RADEON_DEBUG=fp,vp

In Anno1701, there are flickering colorful spots over some models. It looks similar to the bug 60552, except the spots are colorful instead of black and they don't go away with RADEON_DEBUG=noopt.

Setting Wine to use ARB shader rendering backend instead of GLSL makes the problem go away indicating another bug in the shader compiler.

Apitrace here http://pavel.ondracka.cz/Anno1701.trace (renders fine with proprietary NVIDIA drivers).

Wine: 1.5.23 GPU: RV530 Mesa: f1ab67c1 Kernel: 3.7.3-101.fc17.i686

Attachment 74949, "RADEON_DEBUG=fp,vp":
anno.txt

Version: git