[Bug target/40454] [4.4 regression] zlib is about 20% slower when compiled with GCC 4.4.1

[ami_stuff at o2 dot pl]

------- Comment #15 from ami_stuff at o2 dot pl  2009-09-07 19:22 -------
GCC 4.4.2 - GCC 4.4.2 (20090825).
GCC 4.5.0 - GCC 4.5.0 (20090827).

Here are the results:

cputime minigzip_340_O1 testa.tif - 33.917
cputime minigzip_340_O2 testa.tif - 30.868
cputime minigzip_340_O3 testa.tif - 31.304

cputime minigzip_442_O1 testa.tif - 39.261
cputime minigzip_442_O2 testa.tif - 37.704
cputime minigzip_442_O3 testa.tif - 41.666

cputime minigzip_450_O1 testa.tif - 41.128
cputime minigzip_450_O2 testa.tif - 37.587
cputime minigzip_450_O3 testa.tif - 37.663


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40454