[Bug tree-optimization/18687] [4.3/4.4/4.5 Regression] ~50% compile time regression

[steven at gcc dot gnu dot org]

------- Comment #49 from steven at gcc dot gnu dot org  2009-12-28 20:46 -------
For hashes100.c, combine+IRA+expand+tree-PRE accounts for 1/3 of the total
compile time. For infcodes100.c, the profile is more flat, but IRA+expand still
account for 1/4 of the total compile time.

Why is IRA so slow?


-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |vmakarov at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18687