https://bugs.freedesktop.org/show_bug.cgi?id=64257

--- Comment #48 from Marc Dietrich <marvin24@gmx.de> ---
seems to be fixed in master now, but using the commits in comment 42 it crashes
like this. 

Program received signal SIGSEGV, Segmentation fault.
0x00007fffb4481f44 in r600_sb::bc_decoder::decode_alu(unsigned int&,
r600_sb::bc_alu&) () from /usr/lib64/dri/r600_dri.so
(gdb) bt
#0  0x00007fffb4481f44 in r600_sb::bc_decoder::decode_alu(unsigned int&,
r600_sb::bc_alu&) () from /usr/lib64/dri/r600_dri.so
#1  0x00007fffb4488822 in
r600_sb::bc_parser::decode_alu_group(r600_sb::cf_node*, unsigned int&, unsigned
int&) ()
   from /usr/lib64/dri/r600_dri.so
#2  0x00007fffb4488a3b in
r600_sb::bc_parser::decode_alu_clause(r600_sb::cf_node*) () from
/usr/lib64/dri/r600_dri.so
#3  0x00007fffb4488b73 in r600_sb::bc_parser::decode_cf(unsigned int&, bool&)
() from /usr/lib64/dri/r600_dri.so
#4  0x00007fffb4488c14 in r600_sb::bc_parser::decode_shader() () from
/usr/lib64/dri/r600_dri.so
#5  0x00007fffb4488cf7 in r600_sb::bc_parser::decode() () from
/usr/lib64/dri/r600_dri.so
#6  0x00007fffb448c5f7 in r600_sb_bytecode_process () from
/usr/lib64/dri/r600_dri.so
#7  0x00007fffb4463a24 in r600_pipe_shader_create () from
/usr/lib64/dri/r600_dri.so
#8  0x00007fffb4477ead in r600_shader_select () from /usr/lib64/dri/r600_dri.so
#9  0x00007fffb447835a in r600_create_vs_state () from
/usr/lib64/dri/r600_dri.so
#10 0x00007fffb41ec5c7 in st_get_vp_variant () from /usr/lib64/dri/r600_dri.so
#11 0x00007fffb41ab96c in update_vp () from /usr/lib64/dri/r600_dri.so
#12 0x00007fffb41a7cbf in st_validate_state () from /usr/lib64/dri/r600_dri.so
#13 0x00007fffb41be732 in st_draw_vbo () from /usr/lib64/dri/r600_dri.so
#14 0x00007fffb418a2d2 in vbo_validated_drawrangeelements () from
/usr/lib64/dri/r600_dri.so
#15 0x00007fffb418a673 in vbo_exec_DrawElements () from
/usr/lib64/dri/r600_dri.so
#16 0x00007ffff459dbf5 in ?? () from /usr/lib64/firefox/libxul.so

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