#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
+
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
arch_register_req_t *req, const ir_node *irn, int pos)
{
const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+ req->type = arch_register_req_type_none;
return ops->get_irn_reg_req(ops, req, irn, pos);
}
const arch_irn_ops_t *ops = get_irn_ops(env, irn);
const arch_register_req_t *req = ops->get_irn_reg_req(ops, &local_req, irn, pos);
- switch(req->type) {
- case arch_register_req_type_normal:
- arch_register_class_put(req->cls, bs);
- return req->cls->n_regs;
-
- case arch_register_req_type_limited:
- return req->data.limited(irn, pos, bs);
-
- default:
- assert(0 && "This register requirement case is not covered");
+ if(req->type == arch_register_req_type_none) {
+ bitset_clear_all(bs);
+ return 0;
}
- return 0;
+ if(arch_register_req_is(req, limited))
+ return req->limited(irn, pos, bs);
+
+ arch_register_class_put(req->cls, bs);
+ return req->cls->n_regs;
}
int arch_is_register_operand(const arch_env_t *env,
int arch_reg_is_allocatable(const arch_env_t *env, const ir_node *irn,
int pos, const arch_register_t *reg)
{
- int res = 0;
arch_register_req_t req;
arch_get_register_req(env, &req, irn, pos);
- switch(req.type) {
- case arch_register_req_type_normal:
- res = req.cls == reg->reg_class;
- break;
- case arch_register_req_type_limited:
- {
- bitset_t *bs = bitset_alloca(req.cls->n_regs);
- req.data.limited(irn, pos, bs);
- res = bitset_is_set(bs, arch_register_get_index(reg));
- }
- default:
- res = 0;
+
+ if(req.type == arch_register_req_type_none)
+ return 0;
+
+ if(arch_register_req_is(&req, limited)) {
+ bitset_t *bs = bitset_alloca(req.cls->n_regs);
+ req.limited(irn, pos, bs);
+ return bitset_is_set(bs, arch_register_get_index(reg));
}
- return res;
+ return req.cls == reg->reg_class;
}
const arch_register_class_t *