/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
#include "belive_t.h"
#include "bearch_t.h"
#include "besched_t.h"
+#include "bemodule.h"
+
+DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
static const arch_env_t *arch_env;
static be_lv_t *lv;
cls_idx = arch_register_class_index(cls);
//assert(register_values[cls_idx][reg_idx] != NULL);
+ DBG((dbg, LEVEL_1, "Clear Register %s\n", reg->name));
register_values[cls_idx][reg_idx] = NULL;
}
reg_idx = arch_register_get_index(reg);
cls_idx = arch_register_class_index(cls);
-#ifdef DEBUG_libfirm
- {
- ir_node *old_value = register_values[cls_idx][reg_idx];
- assert(old_value == NULL || old_value == node);
- }
-#endif
+ DBG((dbg, LEVEL_1, "Set Register %s: %+F\n", reg->name, node));
register_values[cls_idx][reg_idx] = node;
}
}
}
-void be_peephole_node_replaced(const ir_node *old_node, ir_node *new_node)
+void be_peephole_before_exchange(const ir_node *old_node, ir_node *new_node)
{
const arch_register_t *reg;
const arch_register_class_t *cls;
unsigned reg_idx;
unsigned cls_idx;
- be_liveness_remove(lv, old_node);
- be_liveness_introduce(lv, new_node);
+ DBG((dbg, LEVEL_1, "About to exchange %+F with %+F\n", old_node, new_node));
- if(old_node == current_node)
- current_node = new_node;
+ if(old_node == current_node) {
+ if(is_Proj(new_node)) {
+ current_node = get_Proj_pred(new_node);
+ } else {
+ current_node = new_node;
+ }
+ }
if(!mode_is_data(get_irn_mode(old_node)))
return;
if(register_values[cls_idx][reg_idx] == old_node) {
register_values[cls_idx][reg_idx] = new_node;
}
+
+ be_liveness_remove(lv, old_node);
+}
+
+void be_peephole_after_exchange(ir_node *new_node)
+{
+ be_liveness_introduce(lv, new_node);
}
static void process_block(ir_node *block, void *data)
}
assert(lv->nodes && "live sets must be computed");
+ DBG((dbg, LEVEL_1, "\nProcessing block %+F (from end)\n", block));
be_lv_foreach(lv, block, be_lv_state_end, l) {
ir_node *node = be_lv_get_irn(lv, block, l);
set_reg_value(node);
}
+ DBG((dbg, LEVEL_1, "\nstart processing\n"));
/* walk the block from last insn to the first */
current_node = sched_last(block);
{
clear_irp_opcodes_generic_func();
}
+
+void be_init_peephole(void)
+{
+ FIRM_DBG_REGISTER(dbg, "firm.be.peephole");
+}
+
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_spillbelady);