X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fdebug%2Fdbginfo.h;h=1168907ef38819e1bd4f31f0d74fefb71aa88fd8;hb=232b108d326a2db9d6fb4c78e2fcf86d4c36a937;hp=a749206596bdb85f22b58ffe1b397fb3fec73d22;hpb=0804355762ef7b45199c73902aaec3016edb1243;p=libfirm diff --git a/ir/debug/dbginfo.h b/ir/debug/dbginfo.h index a74920659..1168907ef 100644 --- a/ir/debug/dbginfo.h +++ b/ir/debug/dbginfo.h @@ -1,51 +1,45 @@ /* - * Project: libFIRM - * File name: ir/debug/dbginfo.h - * Purpose: Implements the Firm interface to debug information. - * Author: Goetz Lindenmaier - * Modified by: - * Created: 2001 - * CVS-ID: $Id$ - * Copyright: (c) 2001-2003 Universität Karlsruhe - * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE. - */ - -/** -* @file dbginfo.h -* -* This is the Firm interface to debugging support. -* -* @author Goetz Lindenmaier -* -* Firm requires a debugging module fulfilling this interface, else no -* debugging information is passed to the backend. -* The interface requires a datatype representing the debugging -* information. Firm supports administrating a reference to the debug -* information in every firm node. Further Firm optimizations call -* routines to propagate debug information from old nodes to new nodes -* if the optimization replaces the old ones by the new ones. -* -*/ - -# ifndef _DBGINFO_H_ -# define _DBGINFO_H_ - -#include "ident.h" + * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. + * + * This file may be distributed and/or modified under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation and appearing in the file LICENSE.GPL included in the + * packaging of this file. + * + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. + * + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. + */ -#ifndef _IR_NODE_TYPEDEF_ -#define _IR_NODE_TYPEDEF_ -typedef struct ir_node ir_node; -#endif +/** + * @file + * @brief Implements the Firm interface to debug information. + * @author Goetz Lindenmaier, Michael Beck + * @date 2001 + * @version $Id$ + * @summary + * Firm requires a debugging module fulfilling this interface, else no + * debugging information is passed to the backend. + * The interface requires a datatype representing the debugging + * information. Firm supports administrating a reference to the debug + * information in every Firm node. Further Firm optimizations call + * routines to propagate debug information from old nodes to new nodes + * if the optimization replaces the old ones by the new ones. + */ +#ifndef FIRM_DEBUG_DBGINFO_H +#define FIRM_DEBUG_DBGINFO_H -/* to resolve recursion between entity.h and type.h */ -#ifndef _ENTITY_TYPEDEF_ -#define _ENTITY_TYPEDEF_ -typedef struct entity entity; -#endif +#include "firm_types.h" +#include "ident.h" -#ifndef _TYPE_TYPEDEF_ -#define _TYPE_TYPEDEF_ -typedef struct type type; +#ifdef __cplusplus +extern "C" { #endif /** @@ -58,92 +52,93 @@ typedef struct type type; * An abstract data type containing information for * debugging support. * - * This datatype is not defined anywere in the firm library, but pointers - * to this type can be stored in firm nodes. + * This opaque data type is not defined anywhere in the Firm library, + * but pointers to this type can be stored in Firm nodes. */ typedef struct dbg_info dbg_info; /** * Sets the debug information of a node. + * + * @param n The node. + * @param db The debug info. */ -void set_irn_dbg_info(ir_node *n, dbg_info* db); +void set_irn_dbg_info(ir_node *n, dbg_info *db); /** * Returns the debug information of an node. + * + * @param n The node. */ -dbg_info *get_irn_dbg_info(ir_node *n); +dbg_info *get_irn_dbg_info(const ir_node *n); /** * Sets the debug information of an entity. + * + * @param ent The entity. + * @param db The debug info. */ -void set_entity_dbg_info(entity *ent, dbg_info* db); +void set_entity_dbg_info(ir_entity *ent, dbg_info *db); /** * Returns the debug information of an entity. + * + * @param ent The entity. */ -dbg_info *get_entity_dbg_info(entity *ent); +dbg_info *get_entity_dbg_info(const ir_entity *ent); /** * Sets the debug information of a type. + * + * @param tp The type. + * @param db The debug info. */ -void set_type_dbg_info(type *tp, dbg_info* db); +void set_type_dbg_info(ir_type *tp, dbg_info *db); /** * Returns the debug information of a type. + * + * @param tp The type. */ -dbg_info *get_type_dbg_info(type *tp); +dbg_info *get_type_dbg_info(const ir_type *tp); /** * An enumeration indicating the action performed by a transformation. */ typedef enum { dbg_error = 0, - dbg_opt_ssa, /**< Optimization of the SSA representation, e.g., removal of superfluent phi nodes. */ - dbg_opt_auxnode, /**< Removal of unnecessary auxilliary nodes. */ + dbg_opt_ssa, /**< Optimization of the SSA representation, e.g. removal of superfluent Phi nodes. */ + dbg_opt_auxnode, /**< Removal of unnecessary auxiliary nodes. */ dbg_const_eval, /**< A Firm subgraph was evaluated to a single constant. */ + dbg_opt_cse, /**< A Firm node was replaced due to common subexpression elimination. */ dbg_straightening, /**< A Firm subgraph was replaced by a single, existing block. */ dbg_if_simplification, /**< The control flow of an if is changed as either the - else, the then or both blocks are empty. */ + else, the then or both blocks are empty. */ dbg_algebraic_simplification, /**< A Firm subgraph was replaced because of an algebraic simplification. */ dbg_write_after_write, /**< A Firm subgraph was replaced because of a write after write optimization. */ dbg_write_after_read, /**< A Firm subgraph was replaced because of a write after read optimization. */ + dbg_read_after_write, /**< A Firm subgraph was replaced because of a read + after write optimization. */ + dbg_read_after_read, /**< A Firm subgraph was replaced because of a read + after read optimization. */ + dbg_read_a_const, /**< A Firm subgraph was replaced because of a read + a constant optimization. */ dbg_rem_poly_call, /**< Remove polymorphic call. */ + dbg_dead_code, /**< Removing unreachable code, I.e. blocks that are never executed. */ + dbg_opt_confirm, /**< A Firm subgraph was replace because of a Confirmation. */ + dbg_backend, /**< A Firm subgraph was replaced because of a Backend transformation */ dbg_max /**< Maximum value. */ - } dbg_action; - /** - * Converts enum values to strings. + * Converts a debug_action into a string. + * + * @param a the debug action */ -#ifdef __GNUC__ -static const char* dbg_action_2_str(dbg_action) __attribute__ ((unused)); -#endif - -static const char* dbg_action_2_str(dbg_action a) { - switch(a) { - case dbg_error: return "dbg_error"; break; - case dbg_opt_ssa: return "dbg_opt_ssa"; break; - case dbg_opt_auxnode: return "dbg_opt_auxnode"; break; - case dbg_const_eval: return "dbg_const_eval"; break; - case dbg_straightening: return "dbg_straightening"; break; - case dbg_if_simplification: return "dbg_if_simplification"; break; - case dbg_algebraic_simplification: - return "dbg_algebraic_simplification"; break; - case dbg_write_after_write: return "dbg_write_after_write"; break; - case dbg_write_after_read: return "dbg_write_after_read"; break; - case dbg_rem_poly_call: return "dbg_rem_poly_call"; break; - default: - if (a <= dbg_max) - return "string conversion not implemented"; - else - assert(0); - return NULL; - } -} +const char *dbg_action_2_str(dbg_action a); /** * The type of the debug info merge function. @@ -169,15 +164,29 @@ typedef void merge_pair_func(ir_node *new_node, ir_node *old_node, dbg_action ac */ typedef void merge_sets_func(ir_node **new_node_array, int new_num_entries, ir_node **old_node_array, int old_num_entries, dbg_action action); +/** + * The type of the debug info to human readable string function. + * + * @param buf pointer to a buffer that will hold the info + * @param len length of the buffer + * @param dbg the debug info + * + * @return Number of written characters to the buffer. + * + * @see dbg_init() + */ +typedef unsigned snprint_dbg_func(char *buf, unsigned len, const dbg_info *dbg); + /** * Initializes the debug support. * * @param dbg_info_merge_pair see function description * @param dbg_info_merge_sets see function description + * @param snprint_dbg see function description * - * This function takes Pointers to two functions that merge the + * This function takes pointers to two functions that merge the * debug information when a - * transformation of a firm graph is performed. + * transformation of a Firm graph is performed. * Firm transformations call one of these functions. * * - dbg_info_merge_pair() is called in the following situation: @@ -187,16 +196,51 @@ typedef void merge_sets_func(ir_node **new_node_array, int new_num_entries, ir_n * semantics. * - dbg_info_merge_sets() is called in the following situation: * The optimization replaced a subgraph by another subgraph. There is no - * obviouse mapping between single nodes in both subgraphs. The optimization + * obviously mapping between single nodes in both subgraphs. The optimization * simply passes two lists to the debug module, one containing the nodes in * the old subgraph, the other containing the nodes in the new subgraph. * The same node can be in both lists. * * Further both functions pass an enumeration indicating the action * performed by the transformation, e.g. the kind of optimization performed. + * + * The third argument snprint_dbg is called to convert a debug info into a human readable string. + * This string is the dumped in the dumper functions. + * + * Note that if NULL is passed for dbg_info_merge_pair or dbg_info_merge_sets, the default + * implementations default_dbg_info_merge_pair() and default_dbg_info_merge_sets() are used. + * NULL passed for snprint_dbg means no output. */ -void dbg_init(merge_pair_func *dbg_info_merge_pair, merge_sets_func *dbg_info_merge_sets); +void dbg_init(merge_pair_func *dbg_info_merge_pair, merge_sets_func *dbg_info_merge_sets, snprint_dbg_func *snprint_dbg); + +/** + * The default merge_pair_func implementation, simply copies the debug info + * from the old Firm node to the new one if the new one does not have debug info yet. + * + * @param nw The new Firm node. + * @param old The old Firm node. + * @param info The action that cause old node to be replaced by new one. + */ +void default_dbg_info_merge_pair(ir_node *nw, ir_node *old, dbg_action info); + +/** + * The default merge_sets_func implementation. If n_old_nodes is equal 1, copies + * the debug info from the old node to all new ones (if they do not have one), else does nothing. + * + * @param new_nodes An array of new Firm nodes. + * @param n_new_nodes The length of the new_nodes array. + * @param old_nodes An array of old (replaced) Firm nodes. + * @param n_old_nodes The length of the old_nodes array. + * @param info The action that cause old node to be replaced by new one. + */ +void default_dbg_info_merge_sets(ir_node **new_nodes, int n_new_nodes, + ir_node **old_nodes, int n_old_nodes, + dbg_action info); /** @} */ -#endif /* _DBGINFO_H_ */ +#ifdef __cplusplus +} +#endif + +#endif