MISC: Added asserts.

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
COMMON: If not using sse, back to good ol' C allocation functions

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
COMMON: Removed useless return statements

Signed-off-by: Gama <misept.dieseneuf@gmail.com>