[Bug tree-optimization/18687] [4.0/4.1/4.2 Regression] ~50% compile time regression

[steven at gcc dot gnu dot org]

------- Comment #31 from steven at gcc dot gnu dot org  2006-09-03 11:05 -------
"real" times for hashes100.c (x86_64-linux, Intel Xeon 3.2 GHz, 1GB RAM):

        3.4.6      4.0.4      4.1.2      4.2-svn20060724
-O0     0m1.618s   0m1.762s   0m1.661s   0m1.645s
-O1     0m2.743s   0m4.646s   0m4.984s   0m4.936s
-O2     0m4.686s   0m6.814s   0m7.140s   0m7.603s


"real" times for infcodes100.c:

        3.4.6      4.0.4      4.1.2      4.2-svn20060724
-O0     0m3.040s   0m3.643s   0m3.555s   0m3.575s
-O1     0m4.989s   0m7.694s   0m8.809s   0m8.943s
-O2     0m8.375s   0m10.622s  0m12.136s  0m13.285s


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