X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fopt%2Fopt_osr.c;h=c646988d11f5507f49885e74a001947cc771b1c4;hb=3958bfcd6866194c5dc191e0486b1886230afcba;hp=26e864796bb99760696575b6e9a578b0cc72bb4d;hpb=3f169aa4cf84cddd171f153150b2fb0ea1fa767a;p=libfirm diff --git a/ir/opt/opt_osr.c b/ir/opt/opt_osr.c index 26e864796..c646988d1 100644 --- a/ir/opt/opt_osr.c +++ b/ir/opt/opt_osr.c @@ -1,26 +1,36 @@ +/* + * 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. + */ + /** - * Project: libFIRM - * File name: ir/opt/opt_osr.c - * Purpose: Operator Strength Reduction, based on - * Keith D. Cooper, L. Taylor Simpson, Christopher A. Vick - * Author: Michael Beck - * Modified by: - * Created: 12.5.2006 - * CVS-ID: $Id$ - * Copyright: (c) 2006 Universität Karlsruhe - * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE. + * @file + * @brief Operator Strength Reduction. + * @date 12.5.2006 + * @author Michael Beck + * @version $Id$ + * @summary + * Implementation of the Operator Strength Reduction algorithm + * by Keith D. Cooper, L. Taylor Simpson, Christopher A. Vick. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif -#ifdef HAVE_MALLOC_H -#include -#endif -#ifdef HAVE_ALLOCA_H -#include -#endif - #include "opt_osr.h" #include "irgraph.h" #include "ircons.h" @@ -40,6 +50,7 @@ #include "irloop_t.h" #include "array.h" #include "firmstat.h" +#include "xmalloc.h" /** The debug handle. */ DEBUG_ONLY(static firm_dbg_module_t *dbg;) @@ -80,21 +91,21 @@ typedef struct iv_env { * An entry in the (op, node, node) -> node map. */ typedef struct quadruple_t { - opcode code; /**< the opcode of the reduced operation */ - ir_node *op1; /**< the first operand the reduced operation */ - ir_node *op2; /**< the second operand of the reduced operation */ + ir_opcode code; /**< the opcode of the reduced operation */ + ir_node *op1; /**< the first operand the reduced operation */ + ir_node *op2; /**< the second operand of the reduced operation */ - ir_node *res; /**< the reduced operation */ + ir_node *res; /**< the reduced operation */ } quadruple_t; /** * A LFTR edge. */ typedef struct LFTR_edge { - ir_node *src; /**< the source node */ - ir_node *dst; /**< the destination node */ - opcode code; /**< the opcode that must be applied */ - ir_node *rc; /**< the region const that must be applied */ + ir_node *src; /**< the source node */ + ir_node *dst; /**< the destination node */ + ir_opcode code; /**< the opcode that must be applied */ + ir_node *rc; /**< the region const that must be applied */ } LFTR_edge; /* forward */ @@ -126,7 +137,7 @@ static LFTR_edge *LFTR_find(ir_node *src, iv_env *env) { /** * Add a LFTR edge. */ -static void LFTR_add(ir_node *src, ir_node *dst, opcode code, ir_node *rc, iv_env *env) { +static void LFTR_add(ir_node *src, ir_node *dst, ir_opcode code, ir_node *rc, iv_env *env) { LFTR_edge key; key.src = src; @@ -201,7 +212,7 @@ static int quad_cmp(const void *e1, const void *e2, size_t size) { * * @return the already reduced node or NULL if this operation is not yet reduced */ -static ir_node *search(opcode code, ir_node *op1, ir_node *op2, iv_env *env) { +static ir_node *search(ir_opcode code, ir_node *op1, ir_node *op2, iv_env *env) { quadruple_t key, *entry; key.code = code; @@ -224,7 +235,7 @@ static ir_node *search(opcode code, ir_node *op1, ir_node *op2, iv_env *env) { * @param result the result of the reduced operation * @param env the environment */ -static void add(opcode code, ir_node *op1, ir_node *op2, ir_node *result, iv_env *env) { +static void add(ir_opcode code, ir_node *op1, ir_node *op2, ir_node *result, iv_env *env) { quadruple_t key; key.code = code; @@ -265,7 +276,7 @@ static ir_node *find_location(ir_node *block1, ir_node *block2) { * * @return the newly created node */ -static ir_node *do_apply(opcode code, dbg_info *db, ir_node *op1, ir_node *op2, ir_mode *mode) { +static ir_node *do_apply(ir_opcode code, dbg_info *db, ir_node *op1, ir_node *op2, ir_mode *mode) { ir_graph *irg = current_ir_graph; ir_node *result; ir_node *block = find_location(get_nodes_block(op1), get_nodes_block(op2)); @@ -299,7 +310,7 @@ static ir_node *do_apply(opcode code, dbg_info *db, ir_node *op1, ir_node *op2, * @return the newly created node */ static ir_node *apply(ir_node *orig, ir_node *op1, ir_node *op2, iv_env *env) { - opcode code = get_irn_opcode(orig); + ir_opcode code = get_irn_opcode(orig); ir_node *result = search(code, op1, op2, env); if (! result) { @@ -332,7 +343,7 @@ static ir_node *apply(ir_node *orig, ir_node *op1, ir_node *op2, iv_env *env) { * @return the reduced node */ static ir_node *reduce(ir_node *orig, ir_node *iv, ir_node *rc, iv_env *env) { - opcode code = get_irn_opcode(orig); + ir_opcode code = get_irn_opcode(orig); ir_node *result = search(code, iv, rc, env); if (! result) { @@ -422,10 +433,10 @@ static int replace(ir_node *irn, ir_node *iv, ir_node *rc, iv_env *env) { * @return non-zero if irn should be Replace'd */ static int check_replace(ir_node *irn, iv_env *env) { - ir_node *left, *right, *iv, *rc; - ir_op *op = get_irn_op(irn); - opcode code = get_op_code(op); - ir_node *liv, *riv; + ir_node *left, *right, *iv, *rc; + ir_op *op = get_irn_op(irn); + ir_opcode code = get_op_code(op); + ir_node *liv, *riv; switch (code) { case iro_Mul: