[Bug debug/59992] [4.9 Regression] Compilation of insn-recog.c too slow due to var-tracking

[aoliva at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59992

Alexandre Oliva <aoliva at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |aoliva at gcc dot gnu.org

--- Comment #8 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Mine.  There are horrible quadratic inefficiencies in vt_initialize().  I've
managed to cut the “variable tracking” time down from 1700+ to 5 seconds with a
couple of patches I'm testing now, that I'll attach momentarily.