X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_transform.h;h=03d98ca5df62e2ec0a48bc67e8faa71b8601eef3;hb=c1fdf770d4d000dd5cf22daead32369342c5f5d1;hp=b29291c87ea3ad5a7883aa7968459f1f2584efd7;hpb=0d3ffb21b0526a1665b56489882a4dcf5b81f3cb;p=libfirm diff --git a/ir/be/ia32/ia32_transform.h b/ir/be/ia32/ia32_transform.h index b29291c87..03d98ca5d 100644 --- a/ir/be/ia32/ia32_transform.h +++ b/ir/be/ia32/ia32_transform.h @@ -1,15 +1,61 @@ -#ifndef _IA32_TRANSFORM_H_ -#define _IA32_TRANSFORM_H_ +/* + * 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 This file implements the IR transformation from firm into ia32-Firm. + * @author Christian Wuerdig, Matthias Braun + * @version $Id$ + */ +#ifndef FIRM_BE_IA32_IA32_TRANSFORM_H +#define FIRM_BE_IA32_IA32_TRANSFORM_H + +#include "bearch_ia32_t.h" + +/** + * Transform firm nodes to x86 assembler nodes + */ +void ia32_transform_graph(ia32_code_gen_t *cg); + +/** + * Some constants needed for code generation. + * Generated on demand. + */ +typedef enum { + ia32_SSIGN, /**< SSE2 single precision sign */ + ia32_DSIGN, /**< SSE2 double precision sign */ + ia32_SABS, /**< SSE2 single precision ABS mask */ + ia32_DABS, /**< SSE2 double precision ABS mask */ + ia32_INTMAX, /**< x87 single precision INTMAX */ + ia32_known_const_max /**< last constant */ +} ia32_known_const_t; /** - * Transforms the given Firm node into one or more appropriate ia32 nodes. + * Generate a known floating point constant */ -void ia32_transform_node(ir_node *node, void *env); +ir_entity *ia32_gen_fp_known_const(ia32_known_const_t kct); + +void ia32_add_missing_keeps(ia32_code_gen_t *cg); /** - * Transforms a Sub or fSub into Neg--Add iff OUT_REG == SRC2_REG. - * THIS FUNCTIONS MUST BE CALLED AFTER REGISTER ALLOCATION. + * Skip all Down-Conv's on a given node and return the resulting node. */ -void ia32_transform_sub_to_neg_add(ir_node *irn, ia32_code_gen_t *cg); +ir_node *ia32_skip_downconv(ir_node *node); -#endif /* _IA32_TRANSFORM_H_ */ +#endif /* FIRM_BE_IA32_IA32_TRANSFORM_H */