X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fopt%2Ftropt.c;h=c3124702b2709a0a25c7a90ba0633e843c052e32;hb=3398ae4a8b3cbf66cb0b274ddcd85a2ea863ece1;hp=8a2190fbd00837f33c0d8f8a46736351e26bba03;hpb=9d564d6198d8a1e36a3a9c9ec9ca4d13c6acd153;p=libfirm diff --git a/ir/opt/tropt.c b/ir/opt/tropt.c index 8a2190fbd..c3124702b 100644 --- a/ir/opt/tropt.c +++ b/ir/opt/tropt.c @@ -32,7 +32,6 @@ #include "irprog.h" #include "irtypeinfo.h" #include "irgwalk.h" -#include "irsimpletype.h" #include "trouts.h" #include "ircons.h" #include "irgmod.h" @@ -61,7 +60,8 @@ static gen_pointer_type_to_func gen_pointer_type_to = default_gen_pointer_type_t * Find a pointer type to a given type. * Uses and updates trouts if available. */ -static ir_type *default_gen_pointer_type_to(ir_type *tp) { +static ir_type *default_gen_pointer_type_to(ir_type *tp) +{ ir_type *res = NULL; if (get_trouts_state() == outs_consistent) { if (get_type_n_pointertypes_to(tp) > 0) { @@ -81,7 +81,8 @@ static ir_type *default_gen_pointer_type_to(ir_type *tp) { } /** Return a type that is a depth times pointer to type. */ -static ir_type *pointerize_type(ir_type *tp, int depth) { +static ir_type *pointerize_type(ir_type *tp, int depth) +{ for (; depth > 0; --depth) { tp = gen_pointer_type_to(tp); } @@ -89,9 +90,11 @@ static ir_type *pointerize_type(ir_type *tp, int depth) { } -static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) { +static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) +{ ir_type *fromtype = get_irn_typeinfo_type(pred); ir_node *new_cast = pred; + ir_node *block; int ref_depth = 0; if (totype == fromtype) return pred; /* Case for optimization! */ @@ -111,7 +114,7 @@ static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) { return pred; } - set_cur_block(get_nodes_block(pred)); + block = get_nodes_block(pred); if (is_SubClass_of(totype, fromtype)) { /* downcast */ @@ -128,7 +131,7 @@ static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) { assert(new_type); fromtype = new_type; new_type = pointerize_type(new_type, ref_depth); - new_cast = new_Cast(pred, new_type); + new_cast = new_r_Cast(block, pred, new_type); pred = new_cast; n_casts_normalized ++; set_irn_typeinfo_type(new_cast, new_type); /* keep type information up to date. */ @@ -149,7 +152,7 @@ static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) { assert(new_type); fromtype = new_type; new_type = pointerize_type(new_type, ref_depth); - new_cast = new_Cast(pred, new_type); + new_cast = new_r_Cast(block, pred, new_type); pred = new_cast; n_casts_normalized ++; set_irn_typeinfo_type(new_cast, new_type); /* keep type information up to date. */ @@ -162,7 +165,8 @@ static ir_node *normalize_values_type(ir_type *totype, ir_node *pred) { /** * Post-Walker. */ -static void normalize_irn_class_cast(ir_node *n, void *env) { +static void normalize_irn_class_cast(ir_node *n, void *env) +{ ir_node *res; (void) env; if (is_Cast(n)) { @@ -181,7 +185,8 @@ static void normalize_irn_class_cast(ir_node *n, void *env) { } -static void pure_normalize_irg_class_casts(ir_graph *irg) { +static void pure_normalize_irg_class_casts(ir_graph *irg) +{ assert(get_irg_class_cast_state(irg) != ir_class_casts_any && "Cannot normalize irregular casts."); if (get_irg_class_cast_state(irg) == ir_class_casts_normalized) { @@ -194,7 +199,8 @@ static void pure_normalize_irg_class_casts(ir_graph *irg) { } -void normalize_irg_class_casts(ir_graph *irg, gen_pointer_type_to_func gppt_fct) { +void normalize_irg_class_casts(ir_graph *irg, gen_pointer_type_to_func gppt_fct) +{ assert(get_irp_typeinfo_state() == ir_typeinfo_consistent); if (gppt_fct) gen_pointer_type_to = gppt_fct; @@ -207,12 +213,15 @@ void normalize_irg_class_casts(ir_graph *irg, gen_pointer_type_to_func gppt_fct) gen_pointer_type_to = default_gen_pointer_type_to; } -void normalize_irp_class_casts(gen_pointer_type_to_func gppt_fct) { +void normalize_irp_class_casts(gen_pointer_type_to_func gppt_fct) +{ int i; if (gppt_fct) gen_pointer_type_to = gppt_fct; +#if 0 if (get_irp_typeinfo_state() != ir_typeinfo_consistent) simple_analyse_types(); +#endif for (i = get_irp_n_irgs() - 1; i >= 0; --i) { pure_normalize_irg_class_casts(get_irp_irg(i)); @@ -241,10 +250,10 @@ void normalize_irp_class_casts(gen_pointer_type_to_func gppt_fct) { * * @return 1 if the cast was changed */ -static int cancel_out_casts(ir_node *cast) { +static int cancel_out_casts(ir_node *cast) +{ ir_node *orig, *pred = get_Cast_op(cast); ir_type *tp_cast, *tp_pred, *tp_orig; - int ref_depth = 0; if (!is_Cast(pred)) return 0; orig = get_Cast_op(pred); @@ -259,7 +268,6 @@ static int cancel_out_casts(ir_node *cast) { tp_cast = get_pointer_points_to_type(tp_cast); tp_pred = get_pointer_points_to_type(tp_pred); tp_orig = get_pointer_points_to_type(tp_orig); - ref_depth++; } if (!is_Class_type(tp_cast) || !is_Class_type(tp_pred) || !is_Class_type(tp_orig)) @@ -298,7 +306,8 @@ static int cancel_out_casts(ir_node *cast) { * * @return 1 if Cast's where removed */ -static int concretize_selected_entity(ir_node *sel) { +static int concretize_selected_entity(ir_node *sel) +{ ir_node *cast, *ptr = get_Sel_ptr(sel); ir_type *orig_tp, *cast_tp; ir_entity *new_ent, *sel_ent; @@ -406,7 +415,9 @@ static int concretize_Phi_type(ir_node *phi) * * @return 1 if Cast's where removed */ -static int remove_Cmp_Null_cast(ir_node *cmp) { +static int remove_Cmp_Null_cast(ir_node *cmp) +{ + ir_graph *irg; ir_node *cast, *null, *new_null; int cast_pos, null_pos; ir_type *fromtype; @@ -435,9 +446,10 @@ static int remove_Cmp_Null_cast(ir_node *cmp) { return 0; /* Transform Cmp */ + irg = get_irn_irg(cmp); set_irn_n(cmp, cast_pos, get_Cast_op(cast)); fromtype = get_irn_typeinfo_type(get_Cast_op(cast)); - new_null = new_Const_type(get_Const_tarval(null), fromtype); + new_null = new_r_Const(irg, get_Const_tarval(null)); set_irn_typeinfo_type(new_null, fromtype); set_irn_n(cmp, null_pos, new_null); ++n_casts_removed; @@ -447,8 +459,9 @@ static int remove_Cmp_Null_cast(ir_node *cmp) { /** * Post-Walker: Optimize class casts (mostly by trying to remove them) */ -static void irn_optimize_class_cast(ir_node *n, void *env) { - int *changed = env; +static void irn_optimize_class_cast(ir_node *n, void *env) +{ + int *changed = (int*)env; if (is_Cast(n)) *changed |= cancel_out_casts(n); @@ -460,11 +473,14 @@ static void irn_optimize_class_cast(ir_node *n, void *env) { *changed |= remove_Cmp_Null_cast(n); } -void optimize_class_casts(void) { +void optimize_class_casts(void) +{ int changed; +#if 0 if (get_irp_typeinfo_state() != ir_typeinfo_consistent) simple_analyse_types(); +#endif changed = 0; all_irg_walk(NULL, irn_optimize_class_cast, &changed); @@ -481,6 +497,7 @@ void optimize_class_casts(void) { n_casts_removed, n_sels_concretized)); } -void firm_init_class_casts_opt(void) { +void firm_init_class_casts_opt(void) +{ FIRM_DBG_REGISTER(dbg, "firm.opt.tropt"); }