wtf?

[libfirm] / ir / ana / irbackedge.c

diff --git a/ir/ana/irbackedge.c b/ir/ana/irbackedge.c
index c93eac1..da5690b 100644 (file)
--- a/ir/ana/irbackedge.c
+++ b/ir/ana/irbackedge.c
@@ -27,7 +27,7 @@
  * very careful!
  */
 static INLINE int *mere_get_backarray(ir_node *n) {
-  switch(get_irn_opcode(n)) {
+  switch (get_irn_opcode(n)) {
   case iro_Block:
     if (!get_Block_matured(n)) return NULL;
     if (interprocedural_view && n->attr.block.in_cg) {
@@ -129,25 +129,32 @@ void set_not_backedge (ir_node *n, int pos) {
 bool has_backedges (ir_node *n) {
   int i;
   int *ba = get_backarray (n);
-  if (ba)
-    for (i = 0; i < get_irn_arity(n); i++)
+  if (ba) {
+    int arity = get_irn_arity(n);
+    for (i = 0; i < arity; i++)
       if (ba[i]) return true;
+  }
   return false;
 }
 
 /** Sets all backedge information to zero. */
 void clear_backedges (ir_node *n) {
-  int i, rem = interprocedural_view;
+  int i, arity;
+  int rem = interprocedural_view;
   int *ba;
   interprocedural_view = 0;
   ba = get_backarray (n);
-  if (ba)
-    for (i = 0; i < get_irn_arity(n); i++)
+  if (ba) {
+    arity = get_irn_arity(n);
+    for (i = 0; i < arity; i++)
       ba[i] = 0;
+  }
   interprocedural_view = 1;
   ba = get_backarray (n);
-  if (ba)
-    for (i = 0; i < get_irn_arity(n); i++)
+  if (ba) {
+    arity = get_irn_arity(n);
+    for (i = 0; i < arity; i++)
       ba[i] = 0;
+  }
   interprocedural_view = rem;
 }