ia32: cleanup handling of 8/16bit operations

[libfirm] / ir / be / bechordal_common.c

diff --git a/ir/be/bechordal_common.c b/ir/be/bechordal_common.c
index fb7f1b0..2d60273 100644 (file)
--- a/ir/be/bechordal_common.c
+++ b/ir/be/bechordal_common.c
@@ -112,13 +112,10 @@ void create_borders(ir_node *block, void *env_ptr)
 #define border_use(irn, step, real) \
        border_add(env, head, irn, step, ++pressure, 0, real)
 
-       be_chordal_env_t *env             = (be_chordal_env_t*)env_ptr;
-       bitset_t *live                    = bitset_malloc(get_irg_last_idx(env->irg));
-       ir_node *irn;
-       be_lv_t *lv                       = be_get_irg_liveness(env->irg);
+       be_chordal_env_t *env  = (be_chordal_env_t*)env_ptr;
+       bitset_t         *live = bitset_malloc(get_irg_last_idx(env->irg));
+       be_lv_t          *lv   = be_get_irg_liveness(env->irg);
 
-       int i, n;
-       size_t elm;
        unsigned step = 0;
        unsigned pressure = 0;
        struct list_head *head;
@@ -135,8 +132,7 @@ void create_borders(ir_node *block, void *env_ptr)
         * Make final uses of all values live out of the block.
         * They are necessary to build up real intervals.
         */
-       be_lv_foreach(lv, block, be_lv_state_end, i) {
-               ir_node *irn = be_lv_get_irn(lv, block, i);
+       be_lv_foreach(lv, block, be_lv_state_end, irn) {
                if (has_reg_class(env, irn)) {
                        DBG((dbg, LEVEL_3, "\tMaking live: %+F/%d\n", irn, get_irn_idx(irn)));
                        bitset_set(live, get_irn_idx(irn));
@@ -154,8 +150,6 @@ void create_borders(ir_node *block, void *env_ptr)
                DBG((dbg, LEVEL_2, "\tlive: %B\n", live));
 
                if (get_irn_mode(irn) == mode_T) {
-                       const ir_edge_t *edge;
-
                        foreach_out_edge(irn, edge) {
                                ir_node *proj = get_edge_src_irn(edge);
 
@@ -187,7 +181,7 @@ void create_borders(ir_node *block, void *env_ptr)
                 * If the node is no phi node we can examine the uses.
                 */
                if (!is_Phi(irn)) {
-                       for (i = 0, n = get_irn_arity(irn); i < n; ++i) {
+                       for (int i = 0, n = get_irn_arity(irn); i < n; ++i) {
                                ir_node *op = get_irn_n(irn, i);
 
                                if (has_reg_class(env, op)) {
@@ -229,11 +223,10 @@ be_insn_t *chordal_scan_insn(be_chordal_env_t *env, ir_node *irn)
 
 ir_node *pre_process_constraints(be_chordal_env_t *env, be_insn_t **the_insn)
 {
-       be_insn_t *insn             = *the_insn;
-       ir_node *perm               = NULL;
-       bitset_t *out_constr        = bitset_alloca(env->cls->n_regs);
-       const ir_edge_t *edge;
-       int i;
+       be_insn_t *insn       = *the_insn;
+       ir_node   *perm       = NULL;
+       bitset_t  *out_constr = bitset_alloca(env->cls->n_regs);
+       int        i;
 
        assert(insn->has_constraints && "only do this for constrained nodes");