X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=ir%2Fbe%2Fbeschedrand.c;h=064b1247f954fca4dc50aa978587c8ac02a6b796;hb=c6571686bfbfb3c87ae24ae1dc568e685d6cd49a;hp=6f7e38f9d407668f8995b1cd65e7cd1f80209c04;hpb=0fbcef83aa6060534172bb13e71cdadb04428806;p=libfirm diff --git a/ir/be/beschedrand.c b/ir/be/beschedrand.c index 6f7e38f9d..064b1247f 100644 --- a/ir/be/beschedrand.c +++ b/ir/be/beschedrand.c @@ -22,32 +22,30 @@ * @brief Random node selector. * @author Matthias Braun * @date 29.08.2006 - * @version $Id$ */ #include "config.h" #include -#include "besched_t.h" +#include "besched.h" #include "belistsched.h" +#include "bemodule.h" /** * The random selector: * Just assure that branches are executed last, otherwise select a random node */ -static ir_node *random_select(void *block_env, ir_nodeset_t *ready_set, - ir_nodeset_t *live_set) +static ir_node *random_select(void *block_env, ir_nodeset_t *ready_set) { ir_nodeset_iterator_t iter; ir_node *irn = NULL; int only_branches_left = 1; (void)block_env; - (void)live_set; /* assure that branches and constants are executed last */ ir_nodeset_iterator_init(&iter, ready_set); - while( (irn = ir_nodeset_iterator_next(&iter)) != NULL) { - if (!arch_irn_class_is(irn, branch)) { + while ( (irn = ir_nodeset_iterator_next(&iter)) != NULL) { + if (!is_cfop(irn)) { only_branches_left = 0; break; } @@ -64,24 +62,21 @@ static ir_node *random_select(void *block_env, ir_nodeset_t *ready_set, int i = 0; ir_nodeset_iterator_init(&iter, ready_set); while ((irn = ir_nodeset_iterator_next(&iter)) != NULL) { - if(i == n) { + if (i == n) { break; } ++i; } - } while (arch_irn_class_is(irn, branch)); + } while (is_cfop(irn)); } return irn; } -static void *random_init_graph(const list_sched_selector_t *vtab, const be_irg_t *birg) +static void *random_init_graph(ir_graph *irg) { - (void)vtab; - (void)birg; - /* Using time(NULL) as a seed here gives really random results, - but is NOT deterministic which makes debugging impossible. - Moreover no-one want non-deterministic compilers ... */ + (void)irg; + /* TODO: add commandline option for the seed */ srand(0x4711); return NULL; } @@ -93,15 +88,22 @@ static void *random_init_block(void *graph_env, ir_node *block) return NULL; } -const list_sched_selector_t random_selector = { - random_init_graph, - random_init_block, - random_select, - NULL, /* to_appear_in_schedule */ - NULL, /* node_ready */ - NULL, /* node_selected */ - NULL, /* exectime */ - NULL, /* latency */ - NULL, /* finish_block */ - NULL /* finish_graph */ -}; +static void sched_random(ir_graph *irg) +{ + static const list_sched_selector_t random_selector = { + random_init_graph, + random_init_block, + random_select, + NULL, /* node_ready */ + NULL, /* node_selected */ + NULL, /* finish_block */ + NULL /* finish_graph */ + }; + be_list_sched_graph(irg, &random_selector); +} + +BE_REGISTER_MODULE_CONSTRUCTOR(be_init_sched_rand) +void be_init_sched_rand(void) +{ + be_register_scheduler("random", sched_random); +}