Fixed a bug concerning recursion.

[libfirm] / ir / be / beschedtrace.c

diff --git a/ir/be/beschedtrace.c b/ir/be/beschedtrace.c
index 56a3d1d..35af5a2 100644 (file)
--- a/ir/be/beschedtrace.c
+++ b/ir/be/beschedtrace.c
@@ -391,6 +391,8 @@ 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))
+                       continue;
                if (is_root(succ, block)) {
                        mark_root_node(env, succ);
                        set_irn_link(succ, root);
@@ -492,6 +494,7 @@ static trace_env_t *trace_init(const arch_env_t *arch_env, ir_graph *irg) {
        env->liveness   = be_liveness(irg);
        FIRM_DBG_REGISTER(env->dbg, "firm.be.sched.trace");
 
+       be_liveness_assure_chk(env->liveness);
        memset(env->sched_info, 0, nn * sizeof(*(env->sched_info)));
 
        return env;