added GNU_FLAVOUR_YASM to support the YASM assembler

[libfirm] / ir / be / beschedtrace.c

diff --git a/ir/be/beschedtrace.c b/ir/be/beschedtrace.c
index 55a47ad..9f3822d 100644 (file)
--- a/ir/be/beschedtrace.c
+++ b/ir/be/beschedtrace.c
@@ -394,8 +394,16 @@ static void trace_preprocess_block(trace_env_t *env, ir_node *block) {
        foreach_out_edge(block, edge) {
                ir_node *succ = get_edge_src_irn(edge);
 
-               if (is_Anchor(succ))
+               if (is_Block(succ)) {
+                       /* A Block-Block edge. This should be the MacroBlock
+                        * edge, ignore it. */
+                       assert(get_Block_MacroBlock(succ) == block && "Block-Block edge found");
                        continue;
+               }
+               if (is_Anchor(succ)) {
+                       /* ignore a keep alive edge */
+                       continue;
+               }
                if (is_root(succ, block)) {
                        mark_root_node(env, succ);
                        set_irn_link(succ, root);