X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftr%2Ftypewalk.c;h=dbef3f2d63deae4bf9606c1d64a3986c86c80a9e;hb=7d61ad5fbb6a87bea369c8a01103a92d9ab79a48;hp=7b510554ae0c84c8c11fb5c6b571d8bfe5ab82e8;hpb=1ce363f80e6a204d4011f85813362d9bd1d0e7e4;p=libfirm diff --git a/ir/tr/typewalk.c b/ir/tr/typewalk.c index 7b510554a..dbef3f2d6 100644 --- a/ir/tr/typewalk.c +++ b/ir/tr/typewalk.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. + * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved. * * This file is part of libFirm. * @@ -21,22 +21,16 @@ * @file typewalk.c * @brief Functionality to modify the type graph. * @author Goetz Lindenmaier - * @version $Id$ - * @summary + * @brief * * Traverse the type information. The walker walks the whole ir graph * to find the distinct type trees in the type graph forest. * - execute the pre function before recursion * - execute the post function after recursion */ -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#ifdef HAVE_STDLIB_H -# include -#endif +#include "config.h" +#include #include #include "entity_t.h" @@ -46,6 +40,8 @@ #include "irgraph_t.h" #include "irnode_t.h" #include "irgwalk.h" +#include "error.h" +#include "ircons.h" /** * The walker environment @@ -60,29 +56,58 @@ typedef struct type_walk_env { static void irn_type_walker( ir_node *node, type_walk_func *pre, type_walk_func *post, void *env); +static void walk_initializer(ir_initializer_t *initializer, + type_walk_func *pre, type_walk_func *post, + void *env) +{ + switch (initializer->kind) { + case IR_INITIALIZER_CONST: + irn_type_walker(initializer->consti.value, pre, post, env); + return; + case IR_INITIALIZER_TARVAL: + case IR_INITIALIZER_NULL: + return; + + case IR_INITIALIZER_COMPOUND: { + size_t i; + for (i = 0; i < initializer->compound.n_initializers; ++i) { + ir_initializer_t *subinitializer + = initializer->compound.initializers[i]; + walk_initializer(subinitializer, pre, post, env); + } + return; + } + } + panic("invalid initializer found"); +} + /** * Main walker: walks over all used types/entities of a * type entity. */ -static void do_type_walk(type_or_ent *tore, +static void do_type_walk(type_or_ent tore, type_walk_func *pre, type_walk_func *post, void *env) { - int i, n_types, n_mem; - ir_entity *ent = NULL; - ir_type *tp = NULL; - ir_node *n; + size_t i, n_types, n_mem; + ir_entity *ent = NULL; + ir_type *tp = NULL; + type_or_ent cont; /* marked? */ - switch (get_kind(tore)) { + switch (get_kind(tore.ent)) { case k_entity: - ent = (ir_entity *)tore; - if (entity_visited(ent)) return; + ent = tore.ent; + if (entity_visited(ent)) + return; + mark_entity_visited(ent); break; case k_type: - tp = skip_tid((ir_type *)tore); - if (type_visited(tp)) return; + tp = tore.typ; + if (type_visited(tp)) + return; + mark_type_visited(tp); break; default: break; @@ -93,71 +118,72 @@ static void do_type_walk(type_or_ent *tore, pre(tore, env); /* iterate */ - switch (get_kind(tore)) { + switch (get_kind(tore.ent)) { case k_entity: - mark_entity_visited(ent); - do_type_walk((type_or_ent *)get_entity_owner(ent), pre, post, env); - do_type_walk((type_or_ent *)get_entity_type(ent), pre, post, env); - - if (get_entity_variability(ent) != variability_uninitialized) { - /* walk over the value types */ - if (is_atomic_entity(ent)) { - n = get_atomic_ent_value(ent); - irn_type_walker(n, pre, post, env); - } else { - n_mem = get_compound_ent_n_values(ent); - for (i = 0; i < n_mem; ++i) { - n = get_compound_ent_value(ent, i); - irn_type_walker(n, pre, post, env); - } - } + cont.typ = get_entity_owner(ent); + do_type_walk(cont, pre, post, env); + cont.typ = get_entity_type(ent); + do_type_walk(cont, pre, post, env); + + /* walk over the value types */ + if (ent->initializer != NULL) { + walk_initializer(ent->initializer, pre, post, env); } break; case k_type: - mark_type_visited(tp); switch (get_type_tpop_code(tp)) { - case tpo_class: n_types = get_class_n_supertypes(tp); - for (i = 0; i < n_types; ++i) - do_type_walk((type_or_ent *)get_class_supertype(tp, i), pre, post, env); - + for (i = 0; i < n_types; ++i) { + cont.typ = get_class_supertype(tp, i); + do_type_walk(cont, pre, post, env); + } n_mem = get_class_n_members(tp); - for (i = 0; i < n_mem; ++i) - do_type_walk((type_or_ent *)get_class_member(tp, i), pre, post, env); - + for (i = 0; i < n_mem; ++i) { + cont.ent = get_class_member(tp, i); + do_type_walk(cont, pre, post, env); + } n_types = get_class_n_subtypes(tp); - for (i = 0; i < n_types; ++i) - do_type_walk((type_or_ent *)get_class_subtype(tp, i), pre, post, env); + for (i = 0; i < n_types; ++i) { + cont.typ = get_class_subtype(tp, i); + do_type_walk(cont, pre, post, env); + } break; case tpo_struct: n_mem = get_struct_n_members(tp); - for (i = 0; i < n_mem; ++i) - do_type_walk((type_or_ent *)get_struct_member(tp, i), pre, post, env); + for (i = 0; i < n_mem; ++i) { + cont.ent = get_struct_member(tp, i); + do_type_walk(cont, pre, post, env); + } break; case tpo_method: n_mem = get_method_n_params(tp); - for (i = 0; i < n_mem; ++i) - do_type_walk((type_or_ent *)get_method_param_type(tp, i), pre, post, env); - + for (i = 0; i < n_mem; ++i) { + cont.typ = get_method_param_type(tp, i); + do_type_walk(cont, pre, post, env); + } n_mem = get_method_n_ress(tp); - for (i = 0; i < n_mem; ++i) - do_type_walk((type_or_ent *)get_method_res_type(tp, i), pre, post, env); + for (i = 0; i < n_mem; ++i) { + cont.typ = get_method_res_type(tp, i); + do_type_walk(cont, pre, post, env); + } break; case tpo_union: n_mem = get_union_n_members(tp); - for (i = 0; i < n_mem; ++i) - do_type_walk((type_or_ent *)get_union_member(tp, i), pre, post, env); + for (i = 0; i < n_mem; ++i) { + cont.ent = get_union_member(tp, i); + do_type_walk(cont, pre, post, env); + } break; case tpo_array: - do_type_walk((type_or_ent *)get_array_element_type(tp), - pre, post, env); - do_type_walk((type_or_ent *)get_array_element_entity(tp), - pre, post, env); + cont.typ = get_array_element_type(tp); + do_type_walk(cont, pre, post, env); + cont.ent = get_array_element_entity(tp); + do_type_walk(cont, pre, post, env); break; case tpo_enumeration: @@ -165,17 +191,17 @@ static void do_type_walk(type_or_ent *tore, break; case tpo_pointer: - do_type_walk((type_or_ent *)get_pointer_points_to_type(tp), - pre, post, env); + cont.typ = get_pointer_points_to_type(tp); + do_type_walk(cont, pre, post, env); break; + case tpo_code: case tpo_primitive: - case tpo_id: case tpo_none: case tpo_unknown: /* a leave. */ break; - default: + case tpo_uninitialized: assert(0 && "Faulty type"); break; } @@ -189,8 +215,6 @@ static void do_type_walk(type_or_ent *tore, /* execute post method */ if (post) post(tore, env); - - return; } /** Check whether node contains types or entities as an attribute. @@ -198,23 +222,23 @@ static void do_type_walk(type_or_ent *tore, static void irn_type_walker( ir_node *node, type_walk_func *pre, type_walk_func *post, void *env) { - ir_entity *ent; - ir_type *tp; + type_or_ent cont; assert(node); - ent = get_irn_entity_attr(node); - if (ent) - do_type_walk((type_or_ent *)ent, pre, post, env); - tp = get_irn_type_attr(node); - if (tp) - do_type_walk((type_or_ent *)tp, pre, post, env); + cont.ent = get_irn_entity_attr(node); + if (cont.ent) + do_type_walk(cont, pre, post, env); + cont.typ = get_irn_type_attr(node); + if (cont.typ) + do_type_walk(cont, pre, post, env); } /** Check whether node contains types or entities as an attribute. If so start a walk over that information. */ -static void start_type_walk(ir_node *node, void *ctx) { - type_walk_env *env = ctx; +static void start_type_walk(ir_node *node, void *ctx) +{ + type_walk_env *env = (type_walk_env*)ctx; type_walk_func *pre; type_walk_func *post; void *envi; @@ -226,15 +250,20 @@ static void start_type_walk(ir_node *node, void *ctx) { irn_type_walker(node, pre, post, envi); } -/* walker: walks over all types */ -void type_walk(type_walk_func *pre, type_walk_func *post, void *env) { - int i, n_types = get_irp_n_types(); +void type_walk(type_walk_func *pre, type_walk_func *post, void *env) +{ + size_t i, n_types = get_irp_n_types(); + type_or_ent cont; + irp_reserve_resources(irp, IRP_RESOURCE_TYPE_VISITED); inc_master_type_visited(); for (i = 0; i < n_types; ++i) { - do_type_walk((type_or_ent *)get_irp_type(i), pre, post, env); + cont.typ = get_irp_type(i); + do_type_walk(cont, pre, post, env); } - do_type_walk((type_or_ent *)get_glob_type(), pre, post, env); + cont.typ = get_glob_type(); + do_type_walk(cont, pre, post, env); + irp_free_resources(irp, IRP_RESOURCE_TYPE_VISITED); } void type_walk_irg(ir_graph *irg, @@ -246,6 +275,7 @@ void type_walk_irg(ir_graph *irg, /* this is needed to pass the parameters to the walker that actually walks the type information */ type_walk_env type_env; + type_or_ent cont; type_env.pre = pre; type_env.post = post; @@ -253,70 +283,72 @@ void type_walk_irg(ir_graph *irg, current_ir_graph = irg; - /* We walk over the irg to find all irnodes that contain an attribute + /* We walk over the irg to find all IR-nodes that contain an attribute with type information. If we find one we call a type walker to touch the reachable type information. - The same type can be referenced by several irnodes. To avoid + The same type can be referenced by several IR-nodes. To avoid repeated visits of the same type node we must decrease the type visited flag for each walk. This is done in start_type_walk(). Here we initially increase the flag. We only call do_type_walk that does not increase the flag. */ + irp_reserve_resources(irp, IRP_RESOURCE_TYPE_VISITED); inc_master_type_visited(); irg_walk(get_irg_end(irg), start_type_walk, NULL, &type_env); - do_type_walk((type_or_ent *)get_irg_entity(irg), pre, post, env); + cont.ent = get_irg_entity(irg); + do_type_walk(cont, pre, post, env); - do_type_walk((type_or_ent *)get_irg_frame_type(irg), pre, post, env); + cont.typ = get_irg_frame_type(irg); + do_type_walk(cont, pre, post, env); current_ir_graph = rem; - return; + irp_free_resources(irp, IRP_RESOURCE_TYPE_VISITED); } -static void type_walk_s2s_2(type_or_ent *tore, +static void type_walk_s2s_2(type_or_ent tore, type_walk_func *pre, type_walk_func *post, void *env) { - int i, n; + type_or_ent cont; /* marked? */ - switch (get_kind(tore)) { + switch (get_kind(tore.ent)) { case k_entity: - if (entity_visited((ir_entity *)tore)) return; + if (entity_visited(tore.ent)) return; break; case k_type: - if (type_id == get_type_tpop((ir_type*)tore)) { - type_walk_s2s_2((type_or_ent *)skip_tid((ir_type *)tore), pre, post, env); - return; - } - if (type_visited((ir_type *)tore)) return; + if (type_visited(tore.typ)) return; break; default: break; } /* iterate */ - switch (get_kind(tore)) { + switch (get_kind(tore.typ)) { case k_type: { - ir_type *tp = (ir_type *)tore; + ir_type *tp = tore.typ; mark_type_visited(tp); switch (get_type_tpop_code(tp)) { case tpo_class: { + size_t i, n; + n = get_class_n_supertypes(tp); for (i = 0; i < n; ++i) { - type_walk_s2s_2((type_or_ent *)get_class_supertype(tp, i), pre, post, env); + cont.typ = get_class_supertype(tp, i); + type_walk_s2s_2(cont, pre, post, env); } /* execute pre method */ if (pre) pre(tore, env); - tp = skip_tid((ir_type*)tore); n = get_class_n_subtypes(tp); for (i = 0; i < n; ++i) { - type_walk_s2s_2((type_or_ent *)get_class_subtype(tp, i), pre, post, env); + cont.typ = get_class_subtype(tp, i); + type_walk_s2s_2(cont, pre, post, env); } /* execute post method */ @@ -331,7 +363,6 @@ static void type_walk_s2s_2(type_or_ent *tore, case tpo_enumeration: case tpo_pointer: case tpo_primitive: - case tpo_id: /* dont care */ break; default: @@ -340,73 +371,72 @@ static void type_walk_s2s_2(type_or_ent *tore, } } break; /* end case k_type */ case k_entity: - /* dont care */ + /* don't care */ break; default: printf(" *** Faulty type or entity! \n"); break; } - return; } void type_walk_super2sub(type_walk_func *pre, type_walk_func *post, void *env) { - int i, n_types = get_irp_n_types(); - ir_type *tp; + type_or_ent cont; + size_t i, n_types = get_irp_n_types(); + irp_reserve_resources(irp, IRP_RESOURCE_TYPE_VISITED); inc_master_type_visited(); - type_walk_s2s_2((type_or_ent *)get_glob_type(), pre, post, env); + cont.typ = get_glob_type(); + type_walk_s2s_2(cont, pre, post, env); for (i = 0; i < n_types; ++i) { - tp = get_irp_type(i); - type_walk_s2s_2((type_or_ent *)tp, pre, post, env); + cont.typ = get_irp_type(i); + type_walk_s2s_2(cont, pre, post, env); } + irp_free_resources(irp, IRP_RESOURCE_TYPE_VISITED); } /*****************************************************************************/ -static void -type_walk_super_2(type_or_ent *tore, - type_walk_func *pre, - type_walk_func *post, - void *env) { - int i, n; +static void type_walk_super_2(type_or_ent tore, type_walk_func *pre, + type_walk_func *post, void *env) +{ + type_or_ent cont; /* marked? */ - switch (get_kind(tore)) { + switch (get_kind(tore.ent)) { case k_entity: - if (entity_visited((ir_entity *)tore)) return; + if (entity_visited(tore.ent)) + return; break; case k_type: - if (type_id == get_type_tpop((ir_type*)tore)) { - type_walk_super_2((type_or_ent *)skip_tid((ir_type *)tore), pre, post, env); + if (type_visited(tore.typ)) return; - } - if (type_visited((ir_type *)tore)) return; break; default: break; } /* iterate */ - switch (get_kind(tore)) { + switch (get_kind(tore.typ)) { case k_type: { - ir_type *tp = (ir_type *)tore; + ir_type *tp = tore.typ; mark_type_visited(tp); switch (get_type_tpop_code(tp)) { case tpo_class: { + size_t i, n; + /* execute pre method */ if (pre) pre(tore, env); - tp = skip_tid((ir_type*)tore); n = get_class_n_supertypes(tp); for (i = 0; i < n; ++i) { - type_walk_super_2((type_or_ent *)get_class_supertype(tp, i), pre, - post, env); + cont.typ = get_class_supertype(tp, i); + type_walk_super_2(cont, pre, post, env); } /* execute post method */ @@ -421,8 +451,7 @@ type_walk_super_2(type_or_ent *tore, case tpo_enumeration: case tpo_pointer: case tpo_primitive: - case tpo_id: - /* dont care */ + /* don't care */ break; default: printf(" *** Faulty type! \n"); @@ -430,39 +459,37 @@ type_walk_super_2(type_or_ent *tore, } } break; /* end case k_type */ case k_entity: - /* dont care */ + /* don't care */ break; default: printf(" *** Faulty type or entity! \n"); break; } - return; } -void type_walk_super(type_walk_func *pre, - type_walk_func *post, - void *env) { - int i, n_types = get_irp_n_types(); - ir_type *tp; +void type_walk_super(type_walk_func *pre, type_walk_func *post, void *env) +{ + size_t i, n_types = get_irp_n_types(); + type_or_ent cont; + irp_reserve_resources(irp, IRP_RESOURCE_TYPE_VISITED); inc_master_type_visited(); - type_walk_super_2((type_or_ent *)get_glob_type(), pre, post, env); + cont.typ = get_glob_type(); + type_walk_super_2(cont, pre, post, env); for (i = 0; i < n_types; ++i) { - tp = get_irp_type(i); - type_walk_super_2((type_or_ent *)tp, pre, post, env); + cont.typ = get_irp_type(i); + type_walk_super_2(cont, pre, post, env); } + irp_free_resources(irp, IRP_RESOURCE_TYPE_VISITED); } /*****************************************************************************/ -static void -class_walk_s2s_2(ir_type *tp, - class_walk_func *pre, - class_walk_func *post, - void *env) +static void class_walk_s2s_2(ir_type *tp, class_walk_func *pre, + class_walk_func *post, void *env) { - int i, n; + size_t i, n; /* marked? */ if (type_visited(tp)) return; @@ -481,7 +508,6 @@ class_walk_s2s_2(ir_type *tp, if (pre) pre(tp, env); - tp = skip_tid(tp); n = get_class_n_subtypes(tp); for (i = 0; i < n; ++i) { class_walk_s2s_2(get_class_subtype(tp, i), pre, post, env); @@ -489,37 +515,36 @@ class_walk_s2s_2(ir_type *tp, /* execute post method */ if (post) post(tp, env); - - return; } void class_walk_super2sub(class_walk_func *pre, class_walk_func *post, void *env) { - int i, n_types = get_irp_n_types(); + size_t i, n_types = get_irp_n_types(); ir_type *tp; + irp_reserve_resources(irp, IRP_RESOURCE_TYPE_VISITED); inc_master_type_visited(); for (i = 0; i < n_types; i++) { tp = get_irp_type(i); if (is_Class_type(tp) && (get_class_n_supertypes(tp) == 0) && - type_not_visited(tp)) { - assert(! is_frame_type(tp)); - assert(tp != get_glob_type()); + type_not_visited(tp) && + (! is_frame_type(tp)) && + (tp != get_glob_type())) { class_walk_s2s_2(tp, pre, post, env); } } + irp_free_resources(irp, IRP_RESOURCE_TYPE_VISITED); } -/* Walks over all entities in the type */ void walk_types_entities(ir_type *tp, entity_walk_func *doit, void *env) { - int i, n; + size_t i, n; switch (get_type_tpop_code(tp)) { case tpo_class: @@ -544,7 +569,6 @@ void walk_types_entities(ir_type *tp, case tpo_enumeration: case tpo_pointer: case tpo_primitive: - case tpo_id: default: break; }