Using .align in inline assemby

Question

Hi,

I'm using ".align 16 \n\t" in some inline ARM assembly that is implementing some loops to align it on a 16 byte boundary however gcc asm compiler is complaining that alignement is too large

i want to implement -falign-loops=16 in asm for a particular loop

Thanks

Answer 1

I think the .align directive for this particular CPU probably takes a power of 2 for the alignment argument, so to get 16 byte alignment you would need:

.align 4

Note that this directive behaves differently for different CPUs - see tigcc.ticalc.org/doc/gnuasm.html#SEC70