"Zack Weinberg" <[EMAIL PROTECTED]> writes:
[std_expand_builtin_va_start]
> rtx va_r = expand_normal (valist);
> emit_move_insn (va_r, nextarg);
>
> but this is a part of the compiler I am not at all familiar with...
I think you would want something more like
rtx va_r = expand_expr (valist, NULL_RTX, VOIDmode, EXPAND_WRITE);
convert_move (va_r, nextarg, 0);
but other than that I don't see why this would fail. I think you
should give it a try. Of course you would need to test it on a
backend which does not #define EXPAND_BUILTIN_VA_START; I think ARM is
the only primary platform for which that is true.
Ian
