[Bug tree-optimization/50969] 17% degradation in 168.wupwise for interleave via permutation

pthaugen at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Nov 2 21:38:00 GMT 2011


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50969

--- Comment #1 from Pat Haugen <pthaugen at gcc dot gnu.org> 2011-11-02 21:38:28 UTC ---
I swapped the numbers, should be:

-m64 -O3 -mcpu=power7
zaxpy : -79%
zscal : -24%

-m64 -O3 -mcpu=power7 -funroll-loops
zaxpy : -61%
zscal : -65%



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