http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55726
--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2012-12-18 11:39:22 UTC --- no gcc -Ofast -march=corei7 assign.c -std=c99 assign.c: In function ‘main’: assign.c:9:21: error: incompatible types when initializing type ‘float32x4_t’ using type ‘float’ float32x4_t va = a;