On 15/06/15 15:40, Andrew Haley wrote: > On 06/15/2015 03:38 PM, Pawel Por wrote: >> Does gcc guarantee that "var" will be aligned on 4-byte boundary on >> x86 (32/64) architectures ? > > Yes. > > Andrew. > Provided "var" exists in memory... It could live entirely in a register with this program (or not exist at all, given it's never used). R.