static void ensure_lvar_init(Node *node) {
assert(node->type == AST_LVAR);
if (node->lvarinit) {
emit_zero_filler(node->loff, node->loff + node->ctype->size);
emit_decl_init(node->lvarinit, node->loff);
}
node->lvarinit = NULL;
}
static void emit_decl(Node *node) {
SAVE;
if (!node->declinit)
return;
emit_zero_filler(node->declvar->loff,
node->declvar->loff + node->declvar->ctype->size);
emit_decl_init(node->declinit, node->declvar->loff);
}
static void emit_fill_holes(Vector *inits, int off, int totalsize) {
// If at least one of the fields in a variable are initialized,
// unspecified fields has to be initialized with 0.
int len = vec_len(inits);
Node **buf = malloc(len * sizeof(Node *));
for (int i = 0; i < len; i++)
buf[i] = vec_get(inits, i);
qsort(buf, len, sizeof(Node *), cmpinit);
int lastend = 0;
for (int i = 0; i < len; i++) {
Node *node = buf[i];
if (lastend < node->initoff)
emit_zero_filler(lastend + off, node->initoff + off);
lastend = node->initoff + node->totype->size;
}
emit_zero_filler(lastend + off, totalsize + off);
}