[Bug tree-optimization/55600] excessive size of vectorized code

[neleai at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55600

--- Comment #2 from Ondrej Bilka <neleai at seznam dot cz> 2012-12-26 22:03:59 UTC ---
Yes when 128 is replaced by smaller constant. Attached patch gives on my i5
following:
size 32
vector

real    0m0.224s
user    0m0.220s
sys    0m0.000s
unroll

real    0m0.155s
user    0m0.148s
sys    0m0.004s
size 64
vector

real    0m0.398s
user    0m0.396s
sys    0m0.000s
unroll

real    0m0.380s
user    0m0.376s
sys    0m0.000s
size 128
vector

real    0m0.703s
user    0m0.700s
sys    0m0.000s
unroll

real    0m0.817s
user    0m0.812s
sys    0m0.000s