- refactoring of backend generator scripts: You can create multiple constructors

[libfirm] / ir / be / betranshlp.c

diff --git a/ir/be/betranshlp.c b/ir/be/betranshlp.c
index ad337cf..0f1f5c1 100644 (file)
--- a/ir/be/betranshlp.c
+++ b/ir/be/betranshlp.c
@@ -59,11 +59,13 @@ void be_set_transformed_node(ir_node *old_node, ir_node *new_node)
        mark_irn_visited(old_node);
 }
 
-int be_is_transformed(const ir_node *node) {
+int be_is_transformed(const ir_node *node)
+{
        return irn_visited(node);
 }
 
-static inline ir_node *be_get_transformed_node(ir_node *old_node) {
+static inline ir_node *be_get_transformed_node(ir_node *old_node)
+{
        if (irn_visited(old_node)) {
                ir_node *new_node = get_irn_link(old_node);
                assert(new_node != NULL);
@@ -72,7 +74,8 @@ static inline ir_node *be_get_transformed_node(ir_node *old_node) {
        return NULL;
 }
 
-void be_duplicate_deps(ir_node *old_node, ir_node *new_node) {
+void be_duplicate_deps(ir_node *old_node, ir_node *new_node)
+{
        int i;
        int deps = get_irn_deps(old_node);
 
@@ -92,7 +95,8 @@ void be_dep_on_frame(ir_node* node)
                add_irn_dep(node, get_irg_frame(irg));
 }
 
-ir_node *be_duplicate_node(ir_node *node) {
+ir_node *be_duplicate_node(ir_node *node)
+{
        ir_node  *block = be_transform_node(get_nodes_block(node));
        ir_graph *irg   = env.irg;
        dbg_info *dbgi  = get_irn_dbg_info(node);
@@ -129,7 +133,8 @@ ir_node *be_duplicate_node(ir_node *node) {
 /**
  * Calls transformation function for given node and marks it visited.
  */
-ir_node *be_transform_node(ir_node *node) {
+ir_node *be_transform_node(ir_node *node)
+{
        ir_op   *op;
        ir_node *new_node = be_get_transformed_node(node);
 
@@ -156,7 +161,8 @@ ir_node *be_transform_node(ir_node *node) {
 /**
  * enqueue all inputs into the transform queue.
  */
-void be_enqueue_preds(ir_node *node) {
+void be_enqueue_preds(ir_node *node)
+{
        int i, arity;
 
        /* put the preds in the worklist */
@@ -170,7 +176,8 @@ void be_enqueue_preds(ir_node *node) {
 /**
  * Rewire nodes which are potential loops (like Phis) to avoid endless loops.
  */
-static void fix_loops(ir_node *node) {
+static void fix_loops(ir_node *node)
+{
        int i, arity;
        int changed;
 
@@ -231,7 +238,8 @@ static void fix_loops(ir_node *node) {
        }
 }
 
-ir_node *be_pre_transform_node(ir_node *place) {
+ir_node *be_pre_transform_node(ir_node *place)
+{
        if (place == NULL)
                return NULL;
 
@@ -254,6 +262,23 @@ static void kill_unused_anchor(int anchor)
        }
 }
 
+static ir_node *new_be_Anchor(ir_graph *irg)
+{
+       struct obstack *obst = be_get_birg_obst(irg);
+       backend_info_t *info;
+       ir_node        *new_anchor;
+
+       /* Hack: some places in the code ask the Anchor for its register
+          requirements */
+       new_anchor = new_Anchor(irg);
+       info = be_get_info(new_anchor);
+       info->out_infos = NEW_ARR_D(reg_out_info_t, obst, 1);
+       memset(info->out_infos, 0, 1 * sizeof(info->out_infos[0]));
+       info->out_infos[0].req = arch_no_register_req;
+
+       return new_anchor;
+}
+
 /**
  * Transforms all nodes. Deletes the old obstack and creates a new one.
  */
@@ -281,7 +306,7 @@ static void transform_nodes(ir_graph *irg, arch_pretrans_nodes *pre_transform)
                waitq_put(env.worklist, anchor);
        }
 
-       new_anchor  = new_Anchor(irg);
+       new_anchor  = new_be_Anchor(irg);
        irg->anchor = new_anchor;
 
        /* pre transform some anchors (so they are available in the other transform
@@ -324,23 +349,13 @@ static void transform_nodes(ir_graph *irg, arch_pretrans_nodes *pre_transform)
 /**
  * Transform helper for blocks.
  */
-static ir_node *gen_Block(ir_node *node) {
+static ir_node *gen_Block(ir_node *node)
+{
        ir_graph *irg             = current_ir_graph;
        dbg_info *dbgi            = get_irn_dbg_info(node);
-       ir_node  *old_start_block = get_irn_n(env.old_anchor, anchor_start_block);
        ir_node  *macroblock      = get_Block_MacroBlock(node);
        ir_node  *block;
 
-       /*
-        * We replace the ProjX from the start node with a jump,
-        * so the startblock has no preds anymore now
-        */
-       if (node == old_start_block) {
-               return new_rd_Block(dbgi, irg, 0, NULL);
-       }
-
-       /* we use the old blocks for now, because jumps allow cycles in the graph
-        * we have to fix this later */
        block = new_ir_node(dbgi, irg, NULL, get_irn_op(node), get_irn_mode(node),
                            get_irn_arity(node), get_irn_in(node) + 1);
        copy_node_attr(node, block);
@@ -360,7 +375,8 @@ static ir_node *gen_Block(ir_node *node) {
        return block;
 }
 
-static ir_node *gen_End(ir_node *node) {
+static ir_node *gen_End(ir_node *node)
+{
        /* end has to be duplicated manually because we need a dynamic in array */
        ir_graph *irg   = current_ir_graph;
        dbg_info *dbgi  = get_irn_dbg_info(node);