https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84266
--- Comment #3 from Bill Seurer <seurer at linux dot vnet.ibm.com> --- All the compilation failures disappear if the two casts /home/seurer/gcc/build/gcc-trunk/gcc/include/mmintrin.h:857:5: error: incompatible types when assigning to type '__vector signed int' {aka '__vector(4) int'} from type '__vector(8) short int' /home/seurer/gcc/build/gcc-trunk/gcc/include/mmintrin.h:886:5: error: incompatible types when assigning to type '__vector signed int' {aka '__vector(4) int'} from type '__vector(8) short int' are fixed.