* @file
* @brief conv node optimisation
* @author Matthias Braun, Christoph Mallon
- * @version $Id$
*
* Try to minimize the number of conv nodes by changing modes of operations.
* The typical example is the following structure:
#include "irpass_t.h"
#include "tv.h"
#include "vrp.h"
-#include "opt_manage.h"
DEBUG_ONLY(static firm_dbg_module_t *dbg;)
transformed = conv_transform(pred, mode);
if (node != transformed) {
- vrp_attr *vrp;
-
exchange(node, transformed);
- vrp = vrp_get_info(transformed);
- if (vrp && vrp->valid) {
- vrp->range_type = VRP_VARYING;
- vrp->bits_set = tarval_convert_to(vrp->bits_set, mode);
- vrp->bits_not_set = tarval_convert_to(vrp->bits_not_set, mode);
- }
-
*changed = true;
}
}
-static ir_graph_state_t do_deconv(ir_graph *irg)
+void conv_opt(ir_graph *irg)
{
+ bool global_changed = false;
bool changed;
FIRM_DBG_REGISTER(dbg, "firm.opt.conv");
+ assure_irg_properties(irg, IR_GRAPH_PROPERTY_CONSISTENT_OUT_EDGES);
+
DB((dbg, LEVEL_1, "===> Performing conversion optimization on %+F\n", irg));
do {
changed = false;
irg_walk_graph(irg, NULL, conv_opt_walker, &changed);
local_optimize_graph(irg);
+ global_changed |= changed;
} while (changed);
- return 0;
-}
-
-optdesc_t opt_deconv = {
- "deconv",
- IR_GRAPH_STATE_CONSISTENT_OUT_EDGES,
- do_deconv,
-};
-
-int conv_opt(ir_graph *irg)
-{
- perform_irg_optimization(irg, &opt_deconv);
- return 1;
+ confirm_irg_properties(irg,
+ global_changed ? IR_GRAPH_PROPERTIES_NONE : IR_GRAPH_PROPERTIES_ALL);
}
/* Creates an ir_graph pass for conv_opt. */
ir_graph_pass_t *conv_opt_pass(const char *name)
{
- ir_graph_pass_t *path = def_graph_pass_ret(name ? name : "conv_opt", conv_opt);
+ ir_graph_pass_t *path = def_graph_pass(name ? name : "conv_opt", conv_opt);
/* safe to run parallel on all irgs */
ir_graph_pass_set_parallel(path, 1);