https://bugs.freedesktop.org/show_bug.cgi?id=68503
--- Comment #4 from kwahoo2@wp.pl --- Created attachment 84566 --> https://bugs.freedesktop.org/attachment.cgi?id=84566&action=edit shader no 76 enabled
Seems that shader number 76 is the culprit. R600_DEBUG=sb R600_SB_DSKIP_START=76 R600_SB_DSKIP_END=76 R600_SB_DSKIP_MODE=2 produces glitches.