2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief This file implements the common parts of IR transformation from
23 * firm into ia32-Firm.
24 * @author Matthias Braun, Sebastian Buchwald
25 * @version $Id: ia32_common_transform.h 20999 2008-08-05 16:48:29Z beck $
27 #ifndef FIRM_BE_IA32_IA32_COMMON_TRANSFORM_H
28 #define FIRM_BE_IA32_IA32_COMMON_TRANSFORM_H
30 #include "bearch_ia32_t.h"
34 * An assembler constraint.
36 typedef struct constraint_t constraint_t;
38 const arch_register_class_t *cls;
39 unsigned allowed_registers;
40 char all_registers_allowed;
46 extern ia32_code_gen_t *env_cg;
47 extern heights_t *heights;
50 * Get an atomic entity that is initialized with a tarval forming
53 * @param cnst the node representing the constant
55 ir_entity *create_float_const_entity(ir_node *cnst);
58 * Creates an immediate.
60 * @param symconst if set, create a SymConst immediate
61 * @param symconst_sign sign for the symconst
62 * @param val integer value for the immediate
64 ir_node *create_Immediate(ir_entity *symconst, int symconst_sign, long val);
67 * returns register by name (used for determining clobber specifications in
70 const arch_register_t *ia32_get_clobber_register(const char *clobber);
74 * Prints the old node name on cg obst and returns a pointer to it.
76 const char *ia32_get_old_node_name(ia32_code_gen_t *cg, ir_node *irn);
80 * Return true if a mode can be stored in the GP register set.
82 int ia32_mode_needs_gp_reg(ir_mode *mode);
85 * generates code for a ASM node
87 ir_node *gen_ASM(ir_node *node);
90 * Transforms a CopyB node.
92 * @return The transformed node.
94 ir_node *gen_CopyB(ir_node *node);
97 * Transform the Thread Local Storage Proj.
99 ir_node *gen_Proj_tls(ir_node *node);
102 * This function just sets the register for the Unknown node
103 * as this is not done during register allocation because Unknown
104 * is an "ignore" node.
106 ir_node *gen_Unknown(ir_node *node);
108 const arch_register_req_t *make_register_req(const constraint_t *constraint,
109 int n_outs, const arch_register_req_t **out_reqs, int pos);
111 const arch_register_req_t *parse_clobber(const char *clobber);
114 * Checks whether other node inputs depend on the am_candidate (via mem-proj).
116 int prevents_AM(ir_node *const block, ir_node *const am_candidate,
117 ir_node *const other);
119 ir_node *try_create_Immediate(ir_node *node, char immediate_constraint_type);
121 #endif /* FIRM_BE_IA32_IA32_COMMON_TRANSFORM_H */