changed back to #define ISPC_FORCE_ALIGNED_MEMORY aligned_ld/st #else unaligned ld/st #endif. However load<64>/store<64> will still be unaliged w/o this define because of fails related to the issue #632
Merge branch 'master' into knc-fix
Merge pull request #656 from egaburov/knc-fix

restored ISPC_FORCE_ALIGNED_MEMORY