pressure stats

[libfirm] / ir / be / bemain.c

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index 52bfc85..81a428a 100644 (file)
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -1,8 +1,8 @@
 /**
  * Backend driver.
  * @author Sebastian Hack
- * @date 25.11.2004
- * $Id$
+ * @date   25.11.2004
+ * @cvsid  $Id$
  */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -137,7 +137,7 @@ static const lc_opt_enum_int_items_t vrfy_items[] = {
        { "off",    BE_VRFY_OFF    },
        { "warn",   BE_VRFY_WARN   },
        { "assert", BE_VRFY_ASSERT },
-       { NULL,     NULL }
+       { NULL,     0 }
 };
 static lc_opt_enum_mask_var_t dump_var = {
        &dump_flags, dump_items
@@ -249,6 +249,12 @@ const backend_params *be_init(void)
        return &be_params;
 }
 
+/**
+ * Initializes the main environment for the backend.
+ *
+ * @param env          an empty environment
+ * @param file_handle  the file handle where the output will be written to
+ */
 static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle)
 {
        memset(env, 0, sizeof(*env));
@@ -282,6 +288,15 @@ static void be_done_env(be_main_env_t *env)
        obstack_free(&env->obst, NULL);
 }
 
+/**
+ * A wrapper around a firm dumper. Dumps only, if
+ * flags are enabled.
+ *
+ * @param mask    a bitmask containing the reason what will be dumped
+ * @param irg     the IR graph to dump
+ * @param suffix  the suffix for the dumper
+ * @param dumper  the dumper to be called
+ */
 static void dump(int mask, ir_graph *irg, const char *suffix,
                  void (*dumper)(ir_graph *, const char *))
 {
@@ -323,6 +338,8 @@ static void prepare_graph(be_irg_t *birg)
  * The Firm backend main loop.
  * Do architecture specific lowering for all graphs
  * and call the architecture specific code generator.
+ *
+ * @param file_handle   the file handle the output will be written to
  */
 static void be_main_loop(FILE *file_handle)
 {
@@ -334,7 +351,7 @@ static void be_main_loop(FILE *file_handle)
 
        isa = arch_env_get_isa(env.arch_env);
 
-       // /* for debugging, anchors helps */
+       /* for debugging, anchors helps */
        // dump_all_anchors(1);
 
        /* For all graphs */
@@ -342,7 +359,7 @@ static void be_main_loop(FILE *file_handle)
                ir_graph *irg = get_irp_irg(i);
                const arch_code_generator_if_t *cg_if;
                be_irg_t birg;
-               int save_optimize, save_normalize, status;
+               optimization_state_t state;
 
                birg.irg      = irg;
                birg.main_env = &env;
@@ -404,8 +421,7 @@ static void be_main_loop(FILE *file_handle)
                be_do_stat_nodes(irg, "04 Schedule");
 
                /* we switch off optimizations here, because they might cause trouble */
-               save_optimize  = get_optimize();
-               save_normalize = get_opt_normalize();
+               save_optimization_state(&state);
                set_optimize(0);
                set_opt_normalize(0);
 
@@ -445,9 +461,7 @@ static void be_main_loop(FILE *file_handle)
 
                be_do_stat_nodes(irg, "07 Final");
 
-               /* reset the optimizations */
-               set_optimize(save_optimize);
-               set_opt_normalize(save_normalize);
+               restore_optimization_state(&state);
 
                /* switched off due to statistics (statistic module needs all irgs) */
                //              free_ir_graph(irg);