------- Comment #3 from jakub at gcc dot gnu dot org 2008-10-24 10:42 ------- __sync_*nand* behaves as documented. See info gcc, Atomic Builtins. or http://gcc.gnu.org/ml/gcc-patches/2005-04/msg02168.html Do you have any evidence that icc implements this differently?
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37908