Erdem Guven <[EMAIL PROTECTED]> writes: > I'm using the backend in a project. I want to compile > some codes in 16 bits int mode and others in 32 bits > int. I figured out that gcc uses int sized blocks to > store arguments, passed to a function, in stack. I > mean if function get a short (16 bits) as a parameter > it pushes 4 bytes to stack in 32bits integer mode and > just 2 bytes in 16 bits mode. Is there an easy way to > force gcc to use another size?
How parameters are pushed on the stack is controlled by your backend, via FUNCTION_ARG, PARM_BOUNDARY, PREFERRED_STACK_BOUNDARY, PUSH_ARGS, PUSH_ROUNDING, and the like. The machine independent part of gcc doesn't care at all. Ian
