PPC32 backend from the backend praktikum

[libfirm] / ir / be / bemain.c

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index d301466..ce88671 100644 (file)
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -26,6 +26,7 @@
 #include "iredges_t.h"
 #include "irloop_t.h"
 #include "irtools.h"
+#include "return.h"
 
 #include "bearch.h"
 #include "firm/bearch_firm.h"
@@ -60,7 +61,7 @@
 #define DUMP_FINAL                     (1 << 5)
 
 /* options visible for anyone */
-be_options_t be_options = {
+static be_options_t be_options = {
        /* ilp server */
        "i44pc52.info.uni-karlsruhe.de",
 
@@ -175,9 +176,10 @@ static be_main_env_t *be_init_env(be_main_env_t *env)
 {
        memset(env, 0, sizeof(*env));
        obstack_init(&env->obst);
-       env->dbg = firm_dbg_register("be.main");
-
+       env->dbg      = firm_dbg_register("be.main");
        env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
+       env->options  = &be_options;
+
        arch_env_init(env->arch_env, isa_if);
 
        /* Register the irn handler of the architecture */
@@ -190,6 +192,8 @@ static be_main_env_t *be_init_env(be_main_env_t *env)
         * spill, reload and perm nodes.
         */
        arch_env_push_irn_handler(env->arch_env, &be_node_irn_handler);
+       env->phi_handler = be_phi_handler_new(env->arch_env);
+       arch_env_push_irn_handler(env->arch_env, env->phi_handler);
 
        return env;
 }
@@ -197,6 +201,7 @@ static be_main_env_t *be_init_env(be_main_env_t *env)
 static void be_done_env(be_main_env_t *env)
 {
        env->arch_env->isa->impl->done(env->arch_env->isa);
+       be_phi_handler_free(env->phi_handler);
        obstack_free(&env->obst, NULL);
 }
 
@@ -218,7 +223,7 @@ static void prepare_graph(be_irg_t *birg)
        normalize_proj_nodes(irg);
 
        /* Make just one return node. */
-       // normalize_one_return(irg);
+       normalize_one_return(irg);
 
        /* Remove critical edges */
        remove_critical_cf_edges(irg);
@@ -232,6 +237,9 @@ static void prepare_graph(be_irg_t *birg)
 
        /* check, if the dominance property is fulfilled. */
        be_check_dominance(irg);
+
+       /* reset the phi handler. */
+       be_phi_handler_reset(birg->main_env->phi_handler);
 }
 
 /**
@@ -298,8 +306,7 @@ static void be_main_loop(FILE *file_handle)
                dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
 
                /* add Keeps for should_be_different constrained nodes */
-               assure_constraints(&birg);
-
+               // assure_constraints(&birg);
                dump(DUMP_PREPARED, irg, "-assured", dump_ir_block_graph);
 
                /* Schedule the graphs. */
@@ -329,6 +336,7 @@ static void be_main_loop(FILE *file_handle)
        be_done_env(&env);
 }
 
+/* Main interface to the frontend. */
 void be_main(FILE *file_handle)
 {
        /* never build code for pseudo irgs */
@@ -337,3 +345,19 @@ void be_main(FILE *file_handle)
        be_node_init();
        be_main_loop(file_handle);
 }
+
+/** The debug info retriever function. */
+static retrieve_dbg_func retrieve_dbg = NULL;
+
+/* Sets a debug info retriever. */
+void be_set_debug_retrieve(retrieve_dbg_func func) {
+       retrieve_dbg = func;
+}
+
+/* Retrieve the debug info. */
+const char *be_retrieve_dbg_info(const dbg_info *dbg, unsigned *line) {
+       if (retrieve_dbg)
+               return retrieve_dbg(dbg, line);
+       *line = 0;
+       return NULL;
+}