/*
- * 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.
*
* @brief Procedure cloning.
* @author Beyhan Veliev, Michael Beck
* @version $Id$
- * @summary
+ * @brief
*
* The purpose is first to find and analyze functions, that are called
* with constant parameter(s).
* aren't be constant. The constant parameters of the function are placed
* in the function graph. They aren't be passed as parameters.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <string.h>
#include "irnode_t.h"
#include "irtools.h"
#include "irgmod.h"
-#include "array.h"
-#include "xmalloc.h"
-
-/* A macro to iterate sets.*/
-#define ITERATE_SET(set_entries, entry) for(entry = set_first(set_entries); entry; entry = set_next(set_entries))
+#include "array_t.h"
+#include "irpass_t.h"
/**
* This struct contains the information quadruple for a Call, which we need to
if (! hmap->map)
hmap->map = new_pset(entry_cmp, 8);
- key = obstack_alloc(&hmap->obst, sizeof(*key));
+ key = OALLOC(&hmap->obst, entry_t);
key->q.ent = callee;
key->q.pos = i;
if (is_Call(call)) {
call_ptr = get_Call_ptr(call);
- /* Call pointer must be a SymConst*/
- if (op_SymConst != get_irn_op(call_ptr))
- return;
- /* Call pointer must be the address of an entity.*/
- if (get_SymConst_kind(call_ptr) != symconst_addr_ent)
+ if (! is_Global(call_ptr))
return;
- callee = get_SymConst_entity(call_ptr);
+ callee = get_Global_entity(call_ptr);
+
+ /* we don't know which function gets finally bound to a weak symbol */
+ if (get_entity_linkage(callee) & IR_LINKAGE_WEAK)
+ return;
/* we can only clone calls to existing entities */
- if (get_entity_visibility(callee) == visibility_external_allocated)
+ if (get_entity_irg(callee) == NULL)
return;
process_call(call, callee, hmap);
snprintf(clone_postfix, sizeof(clone_postfix), "_cl_%d_%u", pos, nr);
- return mangle(id, new_id_from_str(clone_postfix));
+ return id_mangle(id, new_id_from_str(clone_postfix));
}
/**
irn_copy = get_irn_link(irn);
if (is_Block(irn)) {
+ set_Block_MacroBlock(irn_copy, get_irn_link(get_Block_MacroBlock(irn)));
for (i = get_Block_n_cfgpreds(irn) - 1; i >= 0; i--) {
pred = get_Block_cfgpred(irn, i);
/* "End" block must be handled extra, because it is not matured.*/
} else {
/* First we set the block our copy if it is not a block.*/
set_nodes_block(irn_copy, get_irn_link(get_nodes_block(irn)));
- if (get_irn_op(irn) == op_End) {
+ if (is_End(irn)) {
/* Handle the keep-alives. This must be done separately, because
the End node was NOT copied */
for (i = 0; i < get_End_n_keepalives(irn); ++i)
* We rely on the fact the only one arg exists, so do
* a cheap CSE in this case.
*/
- set_irn_out(irg_args, i, arg);
+ set_irn_out(irg_args, i, arg, 0);
exchange(proj, arg);
} else
arg = proj;
arg = get_irg_arg(get_entity_irg(q->ent), q->pos);
/* we will replace the argument in position "q->pos" by this constant. */
const_arg = new_r_Const_type(
- clone_irg, get_nodes_block(arg), get_irn_mode(arg), q->tv,
+ clone_irg, q->tv,
get_method_param_type(get_entity_type(q->ent), q->pos));
/* args copy in the cloned graph will be the const. */
* @param ent The entity of the clone.
* @param nr A pointer to the counter of clones.
**/
-static void change_entity_type(quadruple_t *q, ir_entity *ent, unsigned *nr) {
+static void change_entity_type(quadruple_t *q, ir_entity *ent) {
ir_type *mtp, *new_mtp, *tp;
- ident *tp_name;
int i, j, n_params, n_ress;
mtp = get_entity_type(q->ent);
- tp_name = get_clone_ident(get_type_ident(mtp), q->pos, (*nr)++);
n_params = get_method_n_params(mtp);
n_ress = get_method_n_ress(mtp);
/* Create the new type for our clone. It must have one parameter
less then the original.*/
- new_mtp = new_type_method(tp_name, n_params - 1, n_ress);
+ new_mtp = new_type_method(n_params - 1, n_ress);
/* We must set the type of the methods parameters.*/
for (i = j = 0; i < n_params; ++i) {
*
* @param q Contains information for the method to clone.
*/
-static ir_entity *clone_method(quadruple_t *q) {
+static ir_entity *clone_method(quadruple_t *q)
+{
ir_entity *new_entity;
ident *clone_ident;
- ir_graph *rem;
symconst_symbol sym;
/* A counter for the clones.*/
static unsigned nr = 0;
new_entity = copy_entity_name(q->ent, clone_ident);
/* a cloned entity is always local */
- set_entity_visibility(new_entity, visibility_local);
+ set_entity_visibility(new_entity, ir_visibility_local);
/* set a ld name here: Should we mangle this ? */
set_entity_ld_ident(new_entity, get_entity_ident(new_entity));
/* set a new type here. */
- change_entity_type(q, new_entity, &nr);
+ change_entity_type(q, new_entity);
/* We need now a new ir_graph for our clone method. */
create_clone_proc_irg(new_entity, q);
/* We must set the atomic value of our "new_entity". */
sym.entity_p = new_entity;
- rem = current_ir_graph;
- current_ir_graph = get_const_code_irg();
- new_entity->value = new_SymConst(sym, symconst_addr_ent);
- current_ir_graph = rem;
/* The "new_entity" don't have this information. */
new_entity->attr.mtd_attr.param_access = NULL;
ir_node *bl = get_nodes_block(call);
sym.entity_p = new_entity;
- callee = new_r_SymConst(irg, bl, sym, symconst_addr_ent);
+ callee = new_r_SymConst(irg, mode_P_code, sym, symconst_addr_ent);
mtp = get_entity_type(new_entity);
n_params = get_Call_n_params(call);
in[new_params++] = get_Call_param(call, i);
}
/* Create and return the new Call. */
- return new_r_Call(irg, bl, get_Call_mem(call),
+ return new_r_Call(bl, get_Call_mem(call),
callee, n_params - 1, in, get_entity_type(new_entity));
}
*/
static float calculate_weight(const entry_t *entry) {
return ARR_LEN(entry->q.calls) *
- (get_method_param_weight(entry->q.ent, entry->q.pos) + 1);
+ (float)(get_method_param_weight(entry->q.ent, entry->q.pos) + 1);
}
/**
/* we know, that a SymConst is here */
ptr = get_Call_ptr(call);
- assert(get_irn_op(ptr) == op_SymConst);
+ assert(is_SymConst(ptr));
callee = get_SymConst_entity(ptr);
if (callee != entry->q.ent) {
}
obstack_free(&hmap.obst, NULL);
}
+
+struct pass_t {
+ ir_prog_pass_t pass;
+ float threshold;
+};
+
+/**
+ * Wrapper to run proc_cloning() as an ir_prog pass.
+ */
+static int proc_cloning_wrapper(ir_prog *irp, void *context) {
+ struct pass_t *pass = context;
+
+ (void)irp;
+ proc_cloning(pass->threshold);
+ return 0;
+}
+
+/* create a ir_prog pass */
+ir_prog_pass_t *proc_cloning_pass(const char *name, float threshold) {
+ struct pass_t *pass = XMALLOCZ(struct pass_t);
+
+ pass->threshold = threshold;
+ return def_prog_pass_constructor(
+ &pass->pass, name ? name : "cloning", proc_cloning_wrapper);
+}
projects / libfirm / blobdiff