------- Comment #8 from rguenth at gcc dot gnu dot org 2009-02-01 10:49 ------- This is somewhat expected. We vectorize the complex product using vectors of real parts and vectors of complex parts of two complex numbers (so we are not using the fancy haddsub SSE codes). Did you try enabling SSE3 btw? Can you post the ifort assembly of the loop?
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38968
