static unsigned global_mem_disamgig_opt = aa_opt_no_opt;
/* Returns a human readable name for an alias relation. */
-const char *get_ir_alias_relation_name(ir_alias_relation rel) {
+const char *get_ir_alias_relation_name(ir_alias_relation rel)
+{
#define X(a) case a: return #a
switch (rel) {
X(ir_no_alias);
X(ir_may_alias);
X(ir_sure_alias);
- default: assert(0); return "UNKNOWN";
+ default:
+ panic("UNKNOWN alias relation");
}
#undef X
}
/* Get the memory disambiguator options for a graph. */
-unsigned get_irg_memory_disambiguator_options(const ir_graph *irg) {
+unsigned get_irg_memory_disambiguator_options(const ir_graph *irg)
+{
unsigned opt = irg->mem_disambig_opt;
if (opt & aa_opt_inherited)
return global_mem_disamgig_opt;
} /* get_irg_memory_disambiguator_options */
/* Set the memory disambiguator options for a graph. */
-void set_irg_memory_disambiguator_options(ir_graph *irg, unsigned options) {
+void set_irg_memory_disambiguator_options(ir_graph *irg, unsigned options)
+{
irg->mem_disambig_opt = options & ~aa_opt_inherited;
} /* set_irg_memory_disambiguator_options */
/* Set the global disambiguator options for all graphs not having local options. */
-void set_irp_memory_disambiguator_options(unsigned options) {
+void set_irp_memory_disambiguator_options(unsigned options)
+{
global_mem_disamgig_opt = options;
} /* set_irp_memory_disambiguator_options */
*
* @return the base address.
*/
-static ir_node *find_base_adr(const ir_node *sel, ir_entity **pEnt) {
+static ir_node *find_base_adr(const ir_node *sel, ir_entity **pEnt)
+{
ir_node *ptr = get_Sel_ptr(sel);
while (is_Sel(ptr)) {
*
* @return ir_no_alias if the Const is greater, ir_may_alias else
*/
-static ir_alias_relation check_const(const ir_node *cns, int size) {
+static ir_alias_relation check_const(const ir_node *cns, int size)
+{
tarval *tv = get_Const_tarval(cns);
tarval *tv_size;
* ir_no_alias iff they ALWAYS differ more than size
* ir_may_alias else
*/
-static ir_alias_relation different_index(const ir_node *idx1, const ir_node *idx2, int size) {
+static ir_alias_relation different_index(const ir_node *idx1, const ir_node *idx2, int size)
+{
if (idx1 == idx2)
return ir_sure_alias;
if (is_Const(idx1) && is_Const(idx2)) {
}
/* m1 is now the signed one */
- if (tarval_cmp(tv1, get_tarval_null(m1)) & (pn_Cmp_Eq|pn_Cmp_Gt)) {
+ if (!tarval_is_negative(tv1)) {
/* tv1 is signed, but >= 0, simply cast into unsigned */
tv1 = tarval_convert_to(tv1, m2);
} else {
* @param adr1 The first address.
* @param adr2 The second address.
*/
-static ir_alias_relation different_sel_offsets(const ir_node *sel1, const ir_node *sel2) {
+static ir_alias_relation different_sel_offsets(const ir_node *sel1, const ir_node *sel2)
+{
/* seems to be broken */
(void) sel1;
(void) sel2;
*
* @param node the Proj node to test
*/
-static int is_malloc_Result(const ir_node *node) {
+static int is_malloc_Result(const ir_node *node)
+{
node = get_Proj_pred(node);
if (! is_Proj(node))
return 0;
/**
* If adr represents a Bitfield Sel, skip it
*/
-static const ir_node *skip_Bitfield_Sels(const ir_node *adr) {
+static const ir_node *skip_Bitfield_Sels(const ir_node *adr)
+{
if (is_Sel(adr)) {
ir_entity *ent = get_Sel_entity(adr);
ir_type *bf_type = get_entity_type(ent);
} /* get_alias_relation */
/* Set a source language specific memory disambiguator function. */
-void set_language_memory_disambiguator(DISAMBIGUATOR_FUNC func) {
+void set_language_memory_disambiguator(DISAMBIGUATOR_FUNC func)
+{
language_disambuigator = func;
} /* set_language_memory_disambiguator */
/**
* Compare two relation cache entries.
*/
-static int cmp_mem_disambig_entry(const void *elt, const void *key, size_t size) {
+static int cmp_mem_disambig_entry(const void *elt, const void *key, size_t size)
+{
const mem_disambig_entry *p1 = elt;
const mem_disambig_entry *p2 = key;
(void) size;
/**
* Initialize the relation cache.
*/
-void mem_disambig_init(void) {
+void mem_disambig_init(void)
+{
result_cache = new_set(cmp_mem_disambig_entry, 8);
} /* mem_disambig_init */
} /* get_alias_relation_ex */
/* Free the relation cache. */
-void mem_disambig_term(void) {
+void mem_disambig_term(void)
+{
if (result_cache != NULL) {
del_set(result_cache);
result_cache = NULL;
*
* @return non-zero if the Load/Store is a hidden cast, zero else
*/
-static int is_hidden_cast(const ir_mode *mode, const ir_mode *ent_mode) {
+static int is_hidden_cast(const ir_mode *mode, const ir_mode *ent_mode)
+{
if (ent_mode == NULL)
return false;
*
* @param irn the node
*/
-static ir_entity_usage determine_entity_usage(const ir_node *irn, ir_entity *entity) {
+static ir_entity_usage determine_entity_usage(const ir_node *irn, ir_entity *entity)
+{
int i;
ir_mode *emode, *mode;
ir_node *value;
/**
* Update the usage flags of all frame entities.
*/
-static void analyse_irg_entity_usage(ir_graph *irg) {
+static void analyse_irg_entity_usage(ir_graph *irg)
+{
ir_type *ft = get_irg_frame_type(irg);
ir_node *irg_frame;
int i, j, k, static_link_arg;
/* methods can only be analyzed globally */
if (! is_method_entity(ent)) {
- ir_entity_usage flags =
- get_entity_stickyness(ent) == stickyness_sticky ? ir_usage_unknown : 0;
+ ir_entity_usage flags = 0;
+ if (get_entity_linkage(ent) & IR_LINKAGE_HIDDEN_USER)
+ flags = ir_usage_unknown;
set_entity_usage(ent, flags);
}
}
if (! is_method_entity(ent))
continue;
- if (get_entity_peculiarity(ent) == peculiarity_description)
- continue;
inner_irg = get_entity_irg(ent);
+ if (inner_irg == NULL)
+ continue;
+
assure_irg_outs(inner_irg);
args = get_irg_args(inner_irg);
for (j = get_irn_n_outs(args) - 1; j >= 0; --j) {
irg->entity_usage_state = ir_entity_usage_computed;
}
-ir_entity_usage_computed_state get_irg_entity_usage_state(const ir_graph *irg) {
+ir_entity_usage_computed_state get_irg_entity_usage_state(const ir_graph *irg)
+{
return irg->entity_usage_state;
}
-void set_irg_entity_usage_state(ir_graph *irg, ir_entity_usage_computed_state state) {
+void set_irg_entity_usage_state(ir_graph *irg, ir_entity_usage_computed_state state)
+{
irg->entity_usage_state = state;
}
-void assure_irg_entity_usage_computed(ir_graph *irg) {
+void assure_irg_entity_usage_computed(ir_graph *irg)
+{
if (irg->entity_usage_state != ir_entity_usage_not_computed)
return;
/**
* Initialize the entity_usage flag for a global type like type.
*/
-static void init_entity_usage(ir_type *tp) {
+static void init_entity_usage(ir_type *tp)
+{
int i;
/* We have to be conservative: All external visible entities are unknown */
for (i = get_compound_n_members(tp) - 1; i >= 0; --i) {
ir_entity *ent = get_compound_member(tp, i);
ir_entity_usage flags = ir_usage_none;
- ir_visibility vis = get_entity_visibility(ent);
- if (vis == visibility_external_visible ||
- vis == visibility_external_allocated ||
- get_entity_stickyness(ent) == stickyness_sticky) {
+ if (entity_is_externally_visible(ent)) {
flags |= ir_usage_unknown;
}
set_entity_usage(ent, flags);
*
* @param ent the entity
*/
-static void check_initializer(ir_entity *ent) {
+static void check_initializer(ir_entity *ent)
+{
ir_node *n;
int i;
- /* do not check uninitialized values */
- if (get_entity_variability(ent) == variability_uninitialized)
- return;
-
/* Beware: Methods are always initialized with "themself". This does not
- count as a taken address. */
+ * count as a taken address.
+ * TODO: this initialisation with "themself" is wrong and should be removed
+ */
if (is_Method_type(get_entity_type(ent)))
return;
- if (ent->has_initializer) {
- check_initializer_nodes(ent->attr.initializer);
- } else if (is_atomic_entity(ent)) {
- /* let's check if it's an address */
- n = get_atomic_ent_value(ent);
- if (is_Global(n)) {
- ir_entity *ent = get_Global_entity(n);
- set_entity_usage(ent, ir_usage_unknown);
- }
- } else {
+ if (ent->initializer != NULL) {
+ check_initializer_nodes(ent->initializer);
+ } else if (entity_has_compound_ent_values(ent)) {
for (i = get_compound_ent_n_values(ent) - 1; i >= 0; --i) {
n = get_compound_ent_value(ent, i);
}
}
}
-} /* check_initializer */
+}
/**
*
* @param tp a compound type
*/
-static void check_initializers(ir_type *tp) {
+static void check_initializers(ir_type *tp)
+{
int i;
for (i = get_compound_n_members(tp) - 1; i >= 0; --i) {
*
* @param tp a compound type
*/
-static void print_entity_usage_flags(ir_type *tp) {
+static void print_entity_usage_flags(ir_type *tp)
+{
int i;
for (i = get_compound_n_members(tp) - 1; i >= 0; --i) {
ir_entity *ent = get_compound_member(tp, i);
/**
* Post-walker: check for global entity address
*/
-static void check_global_address(ir_node *irn, void *env) {
+static void check_global_address(ir_node *irn, void *env)
+{
ir_node *tls = env;
ir_entity *ent;
ir_entity_usage flags;
/**
* Update the entity usage flags of all global entities.
*/
-static void analyse_irp_globals_entity_usage(void) {
+static void analyse_irp_globals_entity_usage(void)
+{
int i;
ir_segment_t s;
- for (s = IR_SEGMENT_FIRST; s < IR_SEGMENT_COUNT; ++s) {
+ for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
ir_type *type = get_segment_type(s);
init_entity_usage(type);
}
- for (s = IR_SEGMENT_FIRST; s < IR_SEGMENT_COUNT; ++s) {
+ for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
ir_type *type = get_segment_type(s);
check_initializers(type);
}
#ifdef DEBUG_libfirm
if (firm_dbg_get_mask(dbg) & LEVEL_1) {
ir_segment_t s;
- for (s = IR_SEGMENT_FIRST; s < IR_SEGMENT_COUNT; ++s) {
+ for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
print_entity_usage_flags(get_segment_type(s));
}
}
}
/* Returns the current address taken state of the globals. */
-ir_entity_usage_computed_state get_irp_globals_entity_usage_state(void) {
+ir_entity_usage_computed_state get_irp_globals_entity_usage_state(void)
+{
return irp->globals_entity_usage_state;
}
/* Sets the current address taken state of the graph. */
-void set_irp_globals_entity_usage_state(ir_entity_usage_computed_state state) {
+void set_irp_globals_entity_usage_state(ir_entity_usage_computed_state state)
+{
irp->globals_entity_usage_state = state;
}
/* Assure that the address taken flag is computed for the globals. */
-void assure_irp_globals_entity_usage_computed(void) {
+void assure_irp_globals_entity_usage_computed(void)
+{
if (irp->globals_entity_usage_state != ir_entity_usage_not_computed)
return;
analyse_irp_globals_entity_usage();
}
-void firm_init_memory_disambiguator(void) {
+void firm_init_memory_disambiguator(void)
+{
FIRM_DBG_REGISTER(dbg, "firm.ana.irmemory");
FIRM_DBG_REGISTER(dbgcall, "firm.opt.cc");
}
*
* @param tp the type to clone
*/
-static ir_type *clone_type_and_cache(ir_type *tp) {
- static ident *prefix = NULL;
+static ir_type *clone_type_and_cache(ir_type *tp)
+{
ir_type *res;
pmap_entry *e = pmap_find(mtp_map, tp);
if (e)
return e->value;
- if (prefix == NULL)
- prefix = new_id_from_chars("C", 1);
-
- res = clone_type_method(tp, prefix);
+ res = clone_type_method(tp);
pmap_insert(mtp_map, tp, res);
return res;
* Walker: clone all call types of Calls to methods having the
* mtp_property_private property set.
*/
-static void update_calls_to_private(ir_node *call, void *env) {
+static void update_calls_to_private(ir_node *call, void *env)
+{
(void) env;
if (is_Call(call)) {
ir_node *ptr = get_Call_ptr(call);
} /* update_calls_to_private */
/* Mark all private methods, i.e. those of which all call sites are known. */
-void mark_private_methods(void) {
+void mark_private_methods(void)
+{
int i;
int changed = 0;
ir_entity *ent = get_irg_entity(irg);
ir_entity_usage flags = get_entity_usage(ent);
- /* If an entity is sticky, it might be called from external
- places (like inline assembler), so do NOT mark it as private. */
- if (get_entity_visibility(ent) == visibility_local &&
- !(flags & ir_usage_address_taken) &&
- get_entity_stickyness(ent) != stickyness_sticky) {
+ if (!entity_is_externally_visible(ent) &&
+ !(flags & ir_usage_address_taken)) {
ir_type *mtp = get_entity_type(ent);
set_entity_additional_property(ent, mtp_property_private);
} /* mark_private_methods */
/* create a pass for mark_private_methods() */
-ir_prog_pass_t *mark_private_methods_pass(const char *name) {
+ir_prog_pass_t *mark_private_methods_pass(const char *name)
+{
return def_prog_pass(name ? name : "mark_private_methods", mark_private_methods);
} /* mark_private_methods_pass */
projects / libfirm / blobdiff