* @param cls The register class to compute pressure for.
* @return The highest register pressure in the given block.
*/
-static unsigned be_compute_block_pressure(be_loopana_t *loop_ana, ir_node *block, const arch_register_class_t *cls) {
+static unsigned be_compute_block_pressure(be_loopana_t *loop_ana,
+ ir_node *block, const arch_register_class_t *cls)
+{
const be_irg_t *birg = loop_ana->birg;
const arch_env_t *aenv = be_get_birg_arch_env(birg);
be_lv_t *lv = be_get_birg_liveness(birg);
}
pressure = MAX(pressure, son_pressure);
- }
+ }
DBG((dbg, LEVEL_1, "Done with loop %d, pressure %u for class %s\n", loop->loop_nr, pressure, cls->name));
/* update info in set */
be_loopana_t *be_new_loop_pressure_cls(be_irg_t *birg,
const arch_register_class_t *cls) {
ir_graph *irg = be_get_birg_irg(birg);
- be_loopana_t *loop_ana = xmalloc(sizeof(*loop_ana));
+ be_loopana_t *loop_ana = XMALLOC(be_loopana_t);
loop_ana->data = new_set(cmp_loop_info, 16);
loop_ana->birg = birg;
* @param birg The backend irg object
* @return The loop analysis object.
*/
-be_loopana_t *be_new_loop_pressure(be_irg_t *birg) {
+be_loopana_t *be_new_loop_pressure(be_irg_t *birg,
+ const arch_register_class_t *cls)
+{
ir_graph *irg = be_get_birg_irg(birg);
- be_loopana_t *loop_ana = xmalloc(sizeof(*loop_ana));
+ be_loopana_t *loop_ana = XMALLOC(be_loopana_t);
ir_loop *irg_loop = get_irg_loop(irg);
const arch_env_t *arch_env = be_get_birg_arch_env(birg);
- const arch_isa_t *isa = arch_env->isa;
int i;
loop_ana->data = new_set(cmp_loop_info, 16);
construct_cf_backedges(irg);
}
- for (i = arch_isa_get_n_reg_class(isa) - 1; i >= 0; --i) {
- const arch_register_class_t *cls = arch_isa_get_reg_class(isa, i);
- DBG((dbg, LEVEL_1, "\n=====================================================\n", cls->name));
- DBG((dbg, LEVEL_1, " Computing register pressure for class %s:\n", cls->name));
- DBG((dbg, LEVEL_1, "=====================================================\n", cls->name));
+ if (cls != NULL) {
be_compute_loop_pressure(loop_ana, irg_loop, cls);
+ } else {
+ for (i = arch_env_get_n_reg_class(arch_env) - 1; i >= 0; --i) {
+ const arch_register_class_t *cls = arch_env_get_reg_class(arch_env, i);
+ DBG((dbg, LEVEL_1, "\n=====================================================\n", cls->name));
+ DBG((dbg, LEVEL_1, " Computing register pressure for class %s:\n", cls->name));
+ DBG((dbg, LEVEL_1, "=====================================================\n", cls->name));
+ be_compute_loop_pressure(loop_ana, irg_loop, cls);
+ }
}
return loop_ana;