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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GLSL compilation can be very slow"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93681#c8">Comment # 8</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GLSL compilation can be very slow"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93681">bug 93681</a>
              from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
        <pre>On Intel, "perf" says following of the slow shader compilation:

# Cost  Object       Symbol                                           
# ....  ...........  .................... 
20.59%  i965_dri.so  brw::fs_live_variables::compute_start_end
17.71%  i965_dri.so  ra_allocate
 8.73%  i965_dri.so  brw::fs_live_variables::compute_live_variables
 8.67%  i965_dri.so  fs_visitor::virtual_grf_interferes
 7.53%  i965_dri.so  ra_add_node_adjacency
 4.95%  i965_dri.so  fs_visitor::assign_regs
 2.50%  i965_dri.so  decrement_q.isra.2
 2.47%  i965_dri.so  fs_visitor::opt_copy_propagate
 2.32%  libc-2.23.so __libc_calloc
 2.00%  i965_dri.so  ra_add_node_interference
 1.94%  libc-2.23.so _int_malloc       
 1.79%  libc-2.23.so _int_free
...</pre>
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