[Bug rtl-optimization/37471] Move invariant pulls too many cmps out of a loop

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2008-09-21 00:32 -------
While looking a different bug dealing with invariant motion, I noticed that
estimate_reg_pressure_cost does not take into account the mode of the new
register.  This seems like a big issue.  Also init_set_costs always uses SImode
which is not a good representation of the register pressure in general.  


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37471