From: Sebastian Hack <hack@ipd.info.uni-karlsruhe.de>
Date: Wed, 15 Mar 2006 12:49:57 +0000 (+0000)
Subject: Moved the survive dce stuff to irgopt.[ch]
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=2678572530582911ce1618059c1f67485dc2b2d3;p=libfirm

Moved the survive dce stuff to irgopt.[ch]

[r7446]
---

diff --git a/ir/common/Makefile.in b/ir/common/Makefile.in
index 0a8cc3286..29642effb 100644
--- a/ir/common/Makefile.in
+++ b/ir/common/Makefile.in
@@ -22,7 +22,7 @@ SOURCES = $(INSTALL_HEADERS)
 SOURCES += Makefile.in 						\
 	error.c firm_common.c firm.c firmwalk.c 		\
 	error.h firm_common_t.h	statistics.c debug.c old_fctnames.h \
-	irtools.c irtools.h survive_dce.c survive_dce.h
+	irtools.c irtools.h
 
 include $(topdir)/MakeRules
 
diff --git a/ir/common/survive_dce.c b/ir/common/survive_dce.c
deleted file mode 100644
index c574a25c0..000000000
--- a/ir/common/survive_dce.c
+++ /dev/null
@@ -1,85 +0,0 @@
-
-#include "pmap.h"
-
-#include "irnode_t.h"
-#include "irhooks.h"
-#include "irgwalk.h"
-
-#include "survive_dce.h"
-
-struct _survive_dce_t {
-	pmap *places;
-	pmap *new_places;
-	hook_entry_t dead_node_elim;
-	hook_entry_t dead_node_elim_subst;
-};
-
-static void dead_node_hook(void *context, ir_graph *irg, int start)
-{
-	survive_dce_t *sd = context;
-
-	/* Create a new map before the dead node elimination is performed. */
-	if(start) {
-		sd->new_places = pmap_create_ex(pmap_count(sd->places));
-	}
-
-	/* Patch back all nodes if dead node elimination is over and something is to be done. */
-	else {
-		pmap_destroy(sd->places);
-		sd->places     = sd->new_places;
-		sd->new_places = NULL;
-	}
-}
-
-static void dead_node_subst_hook(void *context, ir_graph *irg, ir_node *old, ir_node *nw)
-{
-	survive_dce_t *sd = context;
-	ir_node **place    = (ir_node **) pmap_get(sd->places, old);
-
-	/* If the node is to be patched back, do it. */
-	if(place) {
-		*place = nw;
-		pmap_insert(sd->new_places, nw, (void *) place);
-	}
-}
-
-survive_dce_t *new_survive_dce(void)
-{
-	survive_dce_t *res = xmalloc(sizeof(res[0]));
-	res->places     = pmap_create();
-	res->new_places = NULL;
-
-	res->dead_node_elim.hook._hook_dead_node_elim = dead_node_hook;
-	res->dead_node_elim.context                   = res;
-	res->dead_node_elim.next                      = NULL;
-
-	res->dead_node_elim_subst.hook._hook_dead_node_elim_subst = dead_node_subst_hook;
-	res->dead_node_elim_subst.context = res;
-	res->dead_node_elim_subst.next    = NULL;
-
-	register_hook(hook_dead_node_elim, &res->dead_node_elim);
-	register_hook(hook_dead_node_elim_subst, &res->dead_node_elim_subst);
-	return res;
-}
-
-void free_survive_dce(survive_dce_t *sd)
-{
-	pmap_destroy(sd->places);
-	unregister_hook(hook_dead_node_elim, &sd->dead_node_elim);
-	unregister_hook(hook_dead_node_elim_subst, &sd->dead_node_elim_subst);
-	free(sd);
-}
-
-void survive_dce_register_irn(survive_dce_t *sd, ir_node **place)
-{
-	if(*place != NULL)
-		pmap_insert(sd->places, *place, (void *) place);
-}
-
-void survive_dce_register_pmap(survive_dce_t *sd, pmap *m)
-{
-	pmap_entry *ent;
-
-	for(ent = pmap_first(m); ent; ent = pmap_next(m))
-		survive_dce_register_irn(sd, (ir_node **) &ent->value);
-}
diff --git a/ir/common/survive_dce.h b/ir/common/survive_dce.h
deleted file mode 100644
index 803b78859..000000000
--- a/ir/common/survive_dce.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * A facility for nodes to "survive" the dead code elimination.
- */
-
-#ifndef _FIRM_SURVIVE_DCE_H
-#define _FIRM_SURVIVE_DCE_H
-
-#include "pmap.h"
-
-typedef struct _survive_dce_t survive_dce_t;
-
-/**
- * Make a new dead code survive instance.
- */
-survive_dce_t *new_survive_dce(void);
-
-/**
- * Free a dead node survive instance.
- */
-void           free_survive_dce(survive_dce_t *sd);
-
-/**
- * Register a storage place for a node.
- * @param sd The survive dead code private data.
- * @param place A pointer to a node pointer which shall be actualized.
- * The location given by <code>place</code> will be updated with the substitute
- * of the node it is currently pointing to after dead node elimination.
- */
-void survive_dce_register_irn(survive_dce_t *sd, ir_node **place);
-
-/**
- * Register a map to survive the dce.
- * All value parts of the map's entries are assumed to be ir node pointers
- * and are registered with survive_dce_register_irn().
- * @param sd    The survive dce private data.
- * @param m     The map.
- */
-void survive_dce_register_pmap(survive_dce_t *sd, pmap *m);
-
-#endif