Add ALLOCAN() and ALLOCANZ().

[libfirm] / ir / opt / return.c

diff --git a/ir/opt/return.c b/ir/opt/return.c
index 426ea72..ad417aa 100644 (file)
--- a/ir/opt/return.c
+++ b/ir/opt/return.c
@@ -73,8 +73,7 @@ void normalize_one_return(ir_graph *irg) {
                return;
        }
 
-       returns = alloca((n + 7) >> 3);
-       memset(returns, 0, (n + 7) >> 3);
+       returns = ALLOCANZ(unsigned char, (n + 7) >> 3);
 
        for (n_rets = i = 0; i < n; ++i) {
                ir_node *node = get_Block_cfgpred(endbl, i);
@@ -93,9 +92,9 @@ void normalize_one_return(ir_graph *irg) {
        if (n_rets <= 1)
                return;
 
-       in       = alloca(sizeof(*in)       * IMAX(n_rets, n_ret_vals));
-       retvals  = alloca(sizeof(*retvals)  * n_rets * n_ret_vals);
-       endbl_in = alloca(sizeof(*endbl_in) * n);
+       in       = ALLOCAN(ir_node*,  IMAX(n_rets, n_ret_vals));
+       retvals  = ALLOCAN(ir_node*,  n_rets * n_ret_vals);
+       endbl_in = ALLOCAN(ir_node*,  n);
 
        last_idx = 0;
        for (j = i = 0; i < n; ++i) {
@@ -268,7 +267,7 @@ void normalize_n_returns(ir_graph *irg) {
         */
        end        = get_irg_end(irg);
        n_ret_vals = get_irn_arity(list);
-       in         = alloca(sizeof(*in) * n_ret_vals);
+       in         = ALLOCAN(ir_node*, n_ret_vals);
        while (list) {
                ir_node *ret   = list;
                ir_node *block = get_nodes_block(ret);
@@ -341,7 +340,7 @@ void normalize_n_returns(ir_graph *irg) {
         * Last step: Create a new endblock, with all nodes on the final
         * list as predecessors.
         */
-       in = alloca(sizeof(*in) * n_finals);
+       in = ALLOCAN(ir_node*, n_finals);
 
        for (i = 0; final; ++i, final = get_irn_link(final))
                in[i] = final;