- add functions for global (ir_prog) resource management
[libfirm] / ir / ir / irprog.c
index 6e9cbad..22dff63 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * 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.
  *
@@ -24,9 +24,7 @@
  * @date     2000
  * @version  $Id$
  */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
 
 #ifdef HAVE_STRING_H
 # include <string.h>
 #include "irgraph_t.h"
 #include "pseudo_irg.h"
 #include "array.h"
+#include "error.h"
 #include "obst.h"
 #include "irop_t.h"
 #include "irmemory.h"
 
-/** The name of the Global type. */
-#define GLOBAL_TYPE_NAME "GlobalType"
-/** The name of the Thread Local Storage type. */
-#define TLS_TYPE_NAME "TLS"
 /** The initial name of the irp program. */
 #define INITAL_PROG_NAME "no_name_set"
 
@@ -54,11 +49,9 @@ ir_prog *get_irp(void) { return irp; }
 /**
  *  Create a new incomplete ir_prog.
  */
-static ir_prog *new_incomplete_ir_prog(void) {
-       ir_prog *res;
-
-       res = xmalloc(sizeof(*res));
-       memset(res, 0, sizeof(*res));
+static ir_prog *new_incomplete_ir_prog(void)
+{
+       ir_prog *res = XMALLOCZ(ir_prog);
 
        res->kind           = k_ir_prog;
        res->graphs         = NEW_ARR_F(ir_graph *, 0);
@@ -66,11 +59,16 @@ static ir_prog *new_incomplete_ir_prog(void) {
        res->types          = NEW_ARR_F(ir_type *, 0);
        res->modes          = NEW_ARR_F(ir_mode *, 0);
        res->opcodes        = NEW_ARR_F(ir_op *, 0);
+       res->global_asms    = NEW_ARR_F(ident *, 0);
        res->last_region_nr = 0;
        res->last_label_nr  = 1;  /* 0 is reserved as non-label */
+       res->max_irg_idx    = 0;
 
 #ifdef DEBUG_libfirm
-       res->max_node_nr = 0;
+       res->max_node_nr    = 0;
+#endif
+#ifndef NDEBUG
+       res->reserved_resources = 0;
 #endif
 
        return res;
@@ -78,32 +76,40 @@ static ir_prog *new_incomplete_ir_prog(void) {
 
 /** Completes an incomplete irprog. */
 static ir_prog *complete_ir_prog(ir_prog *irp) {
+       int i;
 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
 
-       irp->name      = IDENT(INITAL_PROG_NAME);
-       irp->glob_type = new_type_class(IDENT(GLOBAL_TYPE_NAME));
-       irp->tls_type  = new_type_struct(IDENT(TLS_TYPE_NAME));
+       irp->name              = IDENT(INITAL_PROG_NAME);
+
+       irp->segment_types[IR_SEGMENT_GLOBAL] = new_type_class(IDENT("GlobalType"));
+       irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
+               = new_type_struct(IDENT("ThreadLocal"));
+       irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
+               = new_type_struct(IDENT("Constructors"));
+       irp->segment_types[IR_SEGMENT_DESTRUCTORS]
+               = new_type_struct(IDENT("Destructors"));
        /* Remove these types from type list.  Must be treated differently than
           other types. */
-       remove_irp_type(irp->glob_type);
-       remove_irp_type(irp->tls_type);
+       for (i = 0; i < IR_SEGMENT_COUNT; ++i) {
+               remove_irp_type(irp->segment_types[i]);
+       }
 
        /* Set these flags for debugging. */
-       irp->glob_type->flags |= tf_global_type;
-       irp->tls_type->flags  |= tf_tls_type;
+       irp->segment_types[IR_SEGMENT_GLOBAL]->flags       |= tf_global_type;
+       irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_tls_type;
 
        /* The global type is a class, but we cannot derive from it, so set
           the final property to assist optimizations that checks for it. */
-       set_class_final(irp->glob_type, 1);
+       set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
 
        irp->const_code_irg   = new_const_code_irg();
 
-       irp->phase_state             = phase_building;
-       irp->outs_state              = outs_none;
-       irp->ip_outedges             = NULL;
-       irp->trouts_state            = outs_none;
-       irp->class_cast_state        = ir_class_casts_transitive;
-       irp->globals_adr_taken_state = ir_address_taken_not_computed;
+       irp->phase_state                = phase_building;
+       irp->outs_state                 = outs_none;
+       irp->ip_outedges                = NULL;
+       irp->trouts_state               = outs_none;
+       irp->class_cast_state           = ir_class_casts_transitive;
+       irp->globals_entity_usage_state = ir_entity_usage_not_computed;
 
        return irp;
 #undef IDENT
@@ -121,24 +127,27 @@ void init_irprog_2(void) {
 
 /* Create a new ir prog. Automatically called by init_firm through
    init_irprog. */
-ir_prog *new_ir_prog (void) {
+ir_prog *new_ir_prog(void) {
        return complete_ir_prog(new_incomplete_ir_prog());
 }
 
 /* frees all memory used by irp.  Types in type list, irgs in irg
    list and entities in global type must be freed by hand before. */
 void free_ir_prog(void) {
-       if (irp->glob_type)
-               free_type(irp->glob_type);
-       if (irp->tls_type)
-               free_type(irp->tls_type);
+       int i;
+       for (i = 0; i < IR_SEGMENT_COUNT; ++i) {
+               free_type(irp->segment_types[i]);
+       }
 
-       /* @@@ * free_ir_graph(irp->const_code_irg); * ?? End has no in?? */
+       free_ir_graph(irp->const_code_irg);
        DEL_ARR_F(irp->graphs);
        DEL_ARR_F(irp->pseudo_graphs);
        DEL_ARR_F(irp->types);
        DEL_ARR_F(irp->modes);
+
+       finish_op();
        DEL_ARR_F(irp->opcodes);
+       DEL_ARR_F(irp->global_asms);
 
        irp->name           = NULL;
        irp->const_code_irg = NULL;
@@ -155,10 +164,14 @@ ir_graph *get_irp_main_irg(void) {
 }
 
 void set_irp_main_irg(ir_graph *main_irg) {
-       assert (irp);
+       assert(irp);
        irp->main_irg = main_irg;
 }
 
+ir_type *(get_segment_type)(ir_segment_t segment) {
+       return _get_segment_type(segment);
+}
+
 ir_type *(get_glob_type)(void) {
        return _get_glob_type();
 }
@@ -217,6 +230,10 @@ ir_graph *(get_irp_irg)(int pos){
        return _get_irp_irg(pos);
 }
 
+int get_irp_last_idx(void) {
+       return irp->max_irg_idx;
+}
+
 void set_irp_irg(int pos, ir_graph *irg) {
        assert(irp && irg);
        assert(pos < (ARR_LEN(irp->graphs)));
@@ -309,14 +326,15 @@ void remove_irp_opcode(ir_op *opcode) {
 
        assert(opcode);
        for (i = ARR_LEN(irp->opcodes) -1; i >= 0; i--) {
-               if (irp->opcodes[i] == opcode) {
-                       for (; i < (ARR_LEN(irp->opcodes)) - 1; i++) {
-                               irp->opcodes[i] = irp->opcodes[i+1];
-                       }
-                       ARR_SETLEN(ir_op *, irp->opcodes, (ARR_LEN(irp->opcodes)) - 1);
-                       break;
+               if (irp->opcodes[i] != opcode)
+                       continue;
+               for (; i < (ARR_LEN(irp->opcodes)) - 1; i++) {
+                       irp->opcodes[i] = irp->opcodes[i+1];
                }
+               ARR_SETLEN(ir_op *, irp->opcodes, (ARR_LEN(irp->opcodes)) - 1);
+               return;
        }
+       panic("Deleting unknown opcode");
 }
 
 /* Returns the number of all opcodes in the irp. */
@@ -382,7 +400,6 @@ ir_node** get_irp_ip_outedges(void) {
        return irp->ip_outedges;
 }
 
-
 irg_callee_info_state get_irp_callee_info_state(void) {
        return irp->callee_info_state;
 }
@@ -400,3 +417,35 @@ ir_exc_region_t (get_irp_next_region_nr)(void) {
 ir_label_t (get_irp_next_label_nr)(void) {
        return _get_irp_next_label_nr();
 }
+
+/* Add a new global asm include */
+void add_irp_asm(ident *asm_string) {
+       ARR_APP1(ident *, irp->global_asms, asm_string);
+}
+
+/* Return the number of global asm includes. */
+int get_irp_n_asms(void) {
+       return ARR_LEN(irp->global_asms);
+}
+
+/* Return the global asm include at position pos. */
+ident *get_irp_asm(int pos) {
+       assert(pos <= 0 && pos < get_irp_n_asms());
+       return irp->global_asms[pos];
+}
+
+#ifndef NDEBUG
+void irp_reserve_resources(ir_prog *irp, ir_resources_t resources) {
+       assert((irp->reserved_resources & resources) == 0);
+       irp->reserved_resources |= resources;
+}
+
+void irp_free_resources(ir_prog *irp, ir_resources_t resources) {
+       assert((irp->reserved_resources & resources) == resources);
+       irp->reserved_resources &= ~resources;
+}
+
+ir_resources_t irp_resources_reserved(const ir_prog *irp) {
+       return irp->reserved_resources;
+}
+#endif