fehler76: assertion when converting float constant to int

[libfirm] / ir / be / bespill.c

diff --git a/ir/be/bespill.c b/ir/be/bespill.c
index 90f8cd9..2d65965 100644 (file)
--- a/ir/be/bespill.c
+++ b/ir/be/bespill.c
@@ -262,7 +262,7 @@ void be_add_reload(spill_env_t *env, ir_node *to_spill, ir_node *before,
                to_spill, before, allow_remat ? "" : " not"));
 }
 
-static ir_node *get_end_of_block_insertion_point(ir_node *block)
+ir_node *be_get_end_of_block_insertion_point(const ir_node *block)
 {
        ir_node *last = sched_last(block);
 
@@ -301,14 +301,14 @@ ir_node *get_block_insertion_point(ir_node *block, int pos)
 
        /* We have to reload the value in pred-block */
        predblock = get_Block_cfgpred_block(block, pos);
-       return get_end_of_block_insertion_point(predblock);
+       return be_get_end_of_block_insertion_point(predblock);
 }
 
-void be_add_reload_at_end(spill_env_t *env, ir_node *to_spill, ir_node *block,
+void be_add_reload_at_end(spill_env_t *env, ir_node *to_spill, const ir_node *block,
                           const arch_register_class_t *reload_cls,
                           int allow_remat)
 {
-       ir_node *before = get_end_of_block_insertion_point(block);
+       ir_node *before = be_get_end_of_block_insertion_point(block);
        be_add_reload(env, to_spill, before, reload_cls, allow_remat);
 }
 
@@ -542,7 +542,7 @@ void spill_node(spill_env_t *env, spill_info_t *spillinfo)
  * @returns 1 if value is available, 0 otherwise
  */
 static
-int is_value_available(spill_env_t *env, ir_node *arg, ir_node *reloader)
+int is_value_available(spill_env_t *env, const ir_node *arg, const ir_node *reloader)
 {
        if(is_Unknown(arg) || arg == new_NoMem())
                return 1;
@@ -594,7 +594,7 @@ int is_value_available(spill_env_t *env, ir_node *arg, ir_node *reloader)
  * Checks whether the node can principally be rematerialized
  */
 static
-int is_remat_node(spill_env_t *env, ir_node *node)
+int is_remat_node(spill_env_t *env, const ir_node *node)
 {
        const arch_env_t *arch_env = env->arch_env;
 
@@ -617,8 +617,8 @@ int is_remat_node(spill_env_t *env, ir_node *node)
  * >= REMAT_COST_INFINITE if remat is not possible.
  */
 static
-int check_remat_conditions_costs(spill_env_t *env, ir_node *spilled,
-                                 ir_node *reloader, int parentcosts)
+int check_remat_conditions_costs(spill_env_t *env, const ir_node *spilled,
+                                 const ir_node *reloader, int parentcosts)
 {
        int i, arity;
        int argremats;
@@ -741,6 +741,11 @@ double be_get_reload_costs(spill_env_t *env, ir_node *to_spill, ir_node *before)
        return env->reload_cost * freq;
 }
 
+int be_is_rematerializable(spill_env_t *env, const ir_node *to_remat, const ir_node *before)
+{
+       return check_remat_conditions_costs(env, to_remat, before, 0) < REMAT_COST_INFINITE;
+}
+
 double be_get_reload_costs_on_edge(spill_env_t *env, ir_node *to_spill,
                                 ir_node *block, int pos)
 {