> _mm_load_ps requires a 16-byte alignment. How to force 16-byte alignment in GCC? The intel manual mentions __declspec, but g++ prints the errors like the following. main.cpp: In function ‘int main()’: main.cpp:7: error: ‘align’ was not declared in this scope main.cpp:7: error: ‘__declspec’ was not declared in this scope main.cpp:7: error: expected `;' before ‘float’ main.cpp:8: error: ‘p1’ was not declared in this scope -- Regards, Peng