// n is a multi-value function call. Add t1, t2, .. = n to out
// and return the list t1, t2, ...
static NodeList*
copyret(Node *n, NodeList **out)
{
Type *t;
Node *tmp, *as;
NodeList *l1, *l2;
Iter tl;
if(n->type->etype != TSTRUCT || !n->type->funarg)
fatal("copyret %T %d", n->type, n->left->type->outtuple);
l1 = nil;
l2 = nil;
for(t=structfirst(&tl, &n->type); t; t=structnext(&tl)) {
tmp = temp(t->type);
l1 = list(l1, tmp);
l2 = list(l2, tmp);
}
as = nod(OAS2, N, N);
as->list = l1;
as->rlist = list1(n);
typecheck(&as, Etop);
orderstmt(as, out);
return l2;
}
/*
* compute total size of f's in/out arguments.
*/
int
argsize(Type *t)
{
Iter save;
Type *fp;
int64 w, x;
w = 0;
fp = structfirst(&save, getoutarg(t));
while(fp != T) {
x = fp->width + fp->type->width;
if(x > w)
w = x;
fp = structnext(&save);
}
fp = funcfirst(&save, t);
while(fp != T) {
x = fp->width + fp->type->width;
if(x > w)
w = x;
fp = funcnext(&save);
}
w = (w+widthptr-1) & ~(widthptr-1);
if((int)w != w)
fatal("argsize too big");
return w;
}
/*
* compute total size of f's in/out arguments.
*/
int
argsize(Type *t)
{
Iter save;
Type *fp;
int w, x;
w = 0;
fp = structfirst(&save, getoutarg(t));
while(fp != T) {
x = fp->width + fp->type->width;
if(x > w)
w = x;
fp = structnext(&save);
}
fp = funcfirst(&save, t);
while(fp != T) {
x = fp->width + fp->type->width;
if(x > w)
w = x;
fp = funcnext(&save);
}
w = (w+7) & ~7;
return w;
}
static void
setoutvar(void)
{
Type *t;
Node *n;
Addr a;
Iter save;
Bits bit;
int z;
t = structfirst(&save, getoutarg(curfn->type));
while(t != T) {
n = nodarg(t, 1);
a = zprog.from;
naddr(n, &a, 0);
bit = mkvar(R, &a);
for(z=0; z<BITS; z++)
ovar.b[z] |= bit.b[z];
t = structnext(&save);
}
//if(bany(&ovar))
//print("ovars = %Q\n", ovar);
}