Mesa git master causes an assertion failure on r600g with the following piglit tests.

bugs/fdo23670-drawpix_stencil
general/stencil-drawpixels

stencil-drawpixels: program/program.c:452: _mesa_reference_program: Assertion `(*ptr)->RefCount > 0' failed
Aborted


git bisect says:

5cbff0932e498f49b57cbb71037b93416bfe30e0 is the first bad commit
commit 5cbff0932e498f49b57cbb71037b93416bfe30e0
Author: Brian Paul <brianp@vmware.com>
Date:   Tue Feb 8 08:05:14 2011 -0700

    st/mesa: free the temporary bitmap/drawpix shader code
    
    Fixes a per-shader memory leak when drawing glBitmaps, glDrawPixels
    or glCopyPixels.
    
    NOTE: This is a candidate for the 7.9 and 7.10 branches.