On Sun, Mar 5, 2017 at 7:20 PM, Luc Van Oostenryck
<luc.vanoostenryck@gmail.com> wrote:
> Like for all others instructions, LLVM needs the type
> of each operands. However this information is not always
> available via the pseudo, like here when passing a integer
> constant as argument since for sparse constants are typeless.
>
> Fix this by getting the type via the function prototype.
>
> +               LLVMValueRef value;
> +               if (arg->type == PSEUDO_VAL) {
> +                       /* Value pseudos do not have type information. */
> +                       /* Use the function prototype to get the type. */
> +                       struct symbol *ctype = get_nth1_arg(insn->func->sym, i + 1);

I try to come up with an example to use the PREPARE_PTR_LIST() in this patch.
I hit a bug "insn->func->sym"  assume "insn->func" is a function symbol node.
If "insn->func" is a function pointer then access "insn->func->sym" is wrong.

Any way, my modify patch attached. It should work similar to this patch
without using the nth argument help function. My limited test hit this
function pointer bug.


Chris