Commit 6a1c5d77 authored by Michael Beck's avatar Michael Beck
Browse files

- implement the same value parameter type lowering for lower_calls (although

  most parts was already here)
- only remap Sel if we change the value parameter type in lower_dw.c

[r25047]
parent 9a623286
......@@ -78,8 +78,9 @@ static ir_type *def_find_pointer_type(ir_type *e_type, ir_mode *mode, int alignm
*/
static ir_type *create_modified_mtd_type(const lower_params_t *lp, ir_type *mtp)
{
ir_type *lowered, *ptr_tp;
ir_type *lowered, *ptr_tp, *value_type;
ir_type **params, **results, *res_tp;
int *param_map;
ir_mode *modes[MAX_REGISTER_RET_VAL];
int n_ress, n_params, nn_ress, nn_params, i, first_variadic;
ident *id;
......@@ -93,7 +94,7 @@ static ir_type *create_modified_mtd_type(const lower_params_t *lp, ir_type *mtp)
}
lowered = get_associated_type(mtp);
if (lowered)
if (lowered != NULL)
return lowered;
n_ress = get_method_n_ress(mtp);
......@@ -102,6 +103,8 @@ static ir_type *create_modified_mtd_type(const lower_params_t *lp, ir_type *mtp)
n_params = get_method_n_params(mtp);
NEW_ARR_A(ir_type *, params, n_params + n_ress);
NEW_ARR_A(int, param_map, n_params + n_ress);
first_variadic = get_method_first_variadic_param_index(mtp);
hidden_params = lp->hidden_params;
......@@ -128,42 +131,51 @@ static ir_type *create_modified_mtd_type(const lower_params_t *lp, ir_type *mtp)
/* this compound will be allocated on callers stack and its
address will be transmitted as a hidden parameter. */
ptr_tp = lp->find_pointer_type(res_tp, get_modeP_data(), lp->def_ptr_alignment);
params[nn_params++] = ptr_tp;
params[nn_params] = ptr_tp;
param_map[nn_params] = -1 - i;
++nn_params;
changed++;
if (lp->flags & LF_RETURN_HIDDEN)
results[nn_ress++] = ptr_tp;
}
}
else
} else {
/* scalar result */
results[nn_ress++] = res_tp;
}
}
/* move the index of the first variadic parameter */
first_variadic += nn_params;
for (i = 0; i < n_params; ++i)
params[nn_params++] = get_method_param_type(mtp, i);
}
else {
for (i = 0; i < n_params; ++i, ++nn_params) {
params[nn_params] = get_method_param_type(mtp, i);
param_map[nn_params] = i;
}
} else {
/* add hidden parameters last */
assert(get_method_variadicity(mtp) == variadicity_non_variadic &&
"Cannot add hidden parameters at end of variadic function");
for (nn_params = 0; nn_params < n_params; ++nn_params)
params[nn_params] = get_method_param_type(mtp, nn_params);
for (nn_params = 0; nn_params < n_params; ++nn_params) {
params[nn_params] = get_method_param_type(mtp, nn_params);
param_map[nn_params] = nn_params;
}
for (nn_ress = i = 0; i < n_ress; ++i) {
res_tp = get_method_res_type(mtp, i);
if (is_compound_type(res_tp))
params[nn_params++] = lp->find_pointer_type(res_tp, get_modeP_data(), lp->def_ptr_alignment);
else
if (is_compound_type(res_tp)) {
params[nn_params] = lp->find_pointer_type(res_tp, get_modeP_data(), lp->def_ptr_alignment);
param_map[nn_params] = -1 - i;
++nn_params;
} else {
results[nn_ress++] = res_tp;
}
}
}
/* create the new type */
id = id_mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
id = id_mangle_u(new_id_from_chars("L", 1), get_type_ident(mtp));
lowered = new_d_type_method(id, nn_params, nn_ress, get_type_dbg_info(mtp));
/* fill it */
......@@ -184,6 +196,30 @@ static ir_type *create_modified_mtd_type(const lower_params_t *lp, ir_type *mtp)
set_lowered_type(mtp, lowered);
value_type = get_method_value_param_type(mtp);
if (value_type != NULL) {
/* set new param positions */
for (i = 0; i < nn_params; ++i) {
ir_entity *ent = get_method_value_param_ent(lowered, i);
int pos = param_map[i];
ident *id;
set_entity_link(ent, INT_TO_PTR(pos));
if (pos < 0) {
/* formally return value, ignore for now */
continue;
}
id = get_method_param_ident(mtp, pos);
if (id != NULL) {
set_method_param_ident(lowered, i, id);
set_entity_ident(ent, id);
}
}
set_lowered_type(value_type, get_method_value_param_type(lowered));
}
return lowered;
}
......
......@@ -2288,7 +2288,10 @@ static void lower_ASM(ir_node *asmn, ir_mode *mode, lower_env_t *env) {
static void lower_Sel(ir_node *sel, ir_mode *mode, lower_env_t *env) {
ir_node *ptr = get_Sel_ptr(sel);
if (ptr == get_irg_value_param_base(current_ir_graph)) {
/* we must only lower value parameter sels if we change the
value parameter type. */
if (env->value_param_tp != NULL &&
ptr == get_irg_value_param_base(current_ir_graph)) {
ir_entity *ent = get_Sel_entity(sel);
int pos = PTR_TO_INT(get_entity_link(ent));
......
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