X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fopt%2Fboolopt.c;h=08168a827d193ba7d18a63a8b1a1b05a1dd57434;hb=4cef2a70fbdc26498af3540fb1d07d96fbd56d56;hp=a39b3fb7fe333e5de4c7c47ac08e631abbe92df7;hpb=adefa68ae15e598e7c3e60cdf51dbf1d8b57b172;p=libfirm diff --git a/ir/opt/boolopt.c b/ir/opt/boolopt.c index a39b3fb7f..08168a827 100644 --- a/ir/opt/boolopt.c +++ b/ir/opt/boolopt.c @@ -1,3 +1,30 @@ +/* + * Copyright (C) 1995-2008 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. + */ + +/** + * @file + * @brief boolean condition/controlflow optimisations + * @author Matthias Braun, Christoph Mallon + * @version $Id: cfopt.c 22579 2008-10-07 14:54:04Z beck $ + */ +#include "config.h" + #include #include @@ -90,7 +117,7 @@ static ir_node *bool_and(cond_pair* const cpair) if ((pnc_lo == pn_Cmp_Lt || pnc_lo == pn_Cmp_Le || pnc_lo == pn_Cmp_Eq) && (pnc_hi == pn_Cmp_Eq || pnc_hi == pn_Cmp_Ge || pnc_hi == pn_Cmp_Gt)) { /* x <|<=|== lo | x ==|>=|> hi -> false */ - ir_node *const t = new_Const(mode_b, tarval_b_false); + ir_node *const t = new_Const(tarval_b_false); return t; } else if ((pnc_lo == pn_Cmp_Lt || pnc_lo == pn_Cmp_Le || pnc_lo == pn_Cmp_Eq) && (pnc_hi == pn_Cmp_Lt || pnc_hi == pn_Cmp_Le || pnc_hi == pn_Cmp_Lg)) { @@ -116,7 +143,7 @@ static ir_node *bool_and(cond_pair* const cpair) return p; } else if (pnc_hi == pn_Cmp_Lt) { /* x > c || x < c + 1 -> false */ - ir_node *const t = new_Const(mode_b, tarval_b_false); + ir_node *const t = new_Const(tarval_b_false); return t; } else if (pnc_hi == pn_Cmp_Le) { /* x > c || x <= c + 1 -> x != c + 1 */ @@ -151,7 +178,7 @@ static ir_node *bool_or(cond_pair *const cpair) if ((pnc_lo == pn_Cmp_Ge || pnc_lo == pn_Cmp_Gt || pnc_lo == pn_Cmp_Lg) && (pnc_hi == pn_Cmp_Lt || pnc_hi == pn_Cmp_Le || pnc_hi == pn_Cmp_Lg)) { /* x >=|>|!= lo | x <|<=|!= hi -> true */ - ir_node *const t = new_Const(mode_b, tarval_b_true); + ir_node *const t = new_Const(tarval_b_true); return t; } else if ((pnc_lo == pn_Cmp_Lt || pnc_lo == pn_Cmp_Le || pnc_lo == pn_Cmp_Eq) && (pnc_hi == pn_Cmp_Lt || pnc_hi == pn_Cmp_Le || pnc_hi == pn_Cmp_Lg)) { @@ -177,7 +204,7 @@ static ir_node *bool_or(cond_pair *const cpair) return p; } else if (pnc_hi == pn_Cmp_Ge) { /* x <= c || x >= c + 1 -> true */ - ir_node *const t = new_Const(mode_b, tarval_b_true); + ir_node *const t = new_Const(tarval_b_true); return t; } else if (pnc_hi == pn_Cmp_Gt) { /* x <= c || x > c + 1 -> x != c + 1 */ @@ -426,7 +453,7 @@ void opt_bool(ir_graph *const irg) { irg_walk_graph(irg, NULL, bool_walk, NULL); - ir_reserve_resources(irg, IR_RESOURCE_BLOCK_MARK); + ir_reserve_resources(irg, IR_RESOURCE_BLOCK_MARK | IR_RESOURCE_PHI_LIST); irg_walk_graph(irg, clear_block_infos, collect_phis, NULL); @@ -437,5 +464,5 @@ void opt_bool(ir_graph *const irg) set_irg_extblk_inconsistent(irg); set_irg_loopinfo_inconsistent(irg); - ir_free_resources(irg, IR_RESOURCE_BLOCK_MARK); + ir_free_resources(irg, IR_RESOURCE_BLOCK_MARK | IR_RESOURCE_PHI_LIST); }