Do not generate declaration for non-existing arch_get_n_regs()

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index f1d5a17..344564c 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -52,7 +52,7 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg;)
 DEBUG_ONLY(static firm_dbg_module_t *dbg_constr;)
 DEBUG_ONLY(static firm_dbg_module_t *dbg_permmove;)
 
-/** Associates an ir_node with it's copy and CopyKeep. */
+/** Associates an ir_node with its copy and CopyKeep. */
 typedef struct {
        ir_nodeset_t copies; /**< all non-spillable copies of this irn */
        const arch_register_class_t *cls;
@@ -554,7 +554,7 @@ static void gen_assure_different_pattern(ir_node *irn, ir_node *other_different,
                sched_add_before(skip_Proj(irn), cpy);
        sched_add_after(skip_Proj(irn), keep);
 
-       /* insert the other different and it's copies into the map */
+       /* insert the other different and its copies into the map */
        entry = (op_copy_assoc_t*)ir_nodemap_get(op_set, other_different);
        if (! entry) {
                entry      = OALLOC(&env->obst, op_copy_assoc_t);
@@ -804,7 +804,7 @@ void assure_constraints(ir_graph *irg)
 
                DB((dbg_constr, LEVEL_1, "\n"));
 
-               /* introduce the copies for the operand and it's copies */
+               /* introduce the copies for the operand and its copies */
                be_ssa_construction_init(&senv, irg);
                be_ssa_construction_add_copy(&senv, map_entry.node);
                be_ssa_construction_add_copies(&senv, nodes, n);
@@ -900,7 +900,7 @@ found_front:
        while (!sched_is_begin(node)) {
                const arch_register_req_t *req;
                int                        input = -1;
-               ir_node                   *proj;
+               ir_node                   *proj  = NULL;
 
                /* search if node is a INPUT of Perm */
                foreach_out_edge(perm, edge) {