1 /* jit/reg.h - register allocator header
3 Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Christian Thalinger
29 $Id: reg.h 1735 2004-12-07 14:33:27Z twisti $
37 /* We typedef these structures before #includes to resolve circular */
40 typedef struct varinfo varinfo;
41 typedef struct registerdata registerdata;
45 #include "vm/jit/codegen.inc.h"
46 #include "vm/jit/jit.h"
47 #include "vm/jit/inline/inline.h"
50 /************************* pseudo variable structure **************************/
53 int type; /* basic type of variable */
54 int flags; /* flags (SAVED, INMEMORY) */
55 int regoff; /* register number or memory offset */
58 typedef struct varinfo varinfo5[5];
65 int intregsnum; /* absolute number of integer registers */
66 int floatregsnum; /* absolute number of float registers */
68 int intreg_ret; /* register to return integer values */
69 int intreg_argnum; /* number of integer argument registers */
71 int floatreg_ret; /* register for return float values */
72 int fltreg_argnum; /* number of float argument registers */
75 int *argintregs; /* scratch integer registers */
76 int *tmpintregs; /* scratch integer registers */
77 int *savintregs; /* saved integer registers */
78 int *argfltregs; /* scratch float registers */
79 int *tmpfltregs; /* scratch float registers */
80 int *savfltregs; /* saved float registers */
81 int *freeargintregs; /* free argument integer registers */
82 int *freetmpintregs; /* free scratch integer registers */
83 int *freesavintregs; /* free saved integer registers */
84 int *freeargfltregs; /* free argument float registers */
85 int *freetmpfltregs; /* free scratch float registers */
86 int *freesavfltregs; /* free saved float registers */
89 int *secondregs; /* used for longs in 2 32 bit registers */
92 int *freemem; /* free scratch memory */
93 int memuse; /* used memory count */
94 int ifmemuse; /* interface used memory count */
95 int maxmemuse; /* maximal used memory count (spills) */
96 int freememtop; /* free memory count */
98 int tmpintregcnt; /* scratch integer register count */
99 int savintregcnt; /* saved integer register count */
100 int tmpfltregcnt; /* scratch float register count */
101 int savfltregcnt; /* saved float register count */
103 int iftmpintregcnt; /* iface scratch integer register count */
104 int ifsavintregcnt; /* iface saved integer register count */
105 int iftmpfltregcnt; /* iface scratch float register count */
106 int ifsavfltregcnt; /* iface saved float register count */
108 int argintreguse; /* used argument integer register count */
109 int tmpintreguse; /* used scratch integer register count */
110 int savintreguse; /* used saved integer register count */
111 int argfltreguse; /* used argument float register count */
112 int tmpfltreguse; /* used scratch float register count */
113 int savfltreguse; /* used saved float register count */
115 int maxargintreguse; /* max used argument int register count */
116 int maxtmpintreguse; /* max used scratch int register count */
117 int maxsavintreguse; /* max used saved int register count */
118 int maxargfltreguse; /* max used argument float register count */
119 int maxtmpfltreguse; /* max used scratch float register count */
120 int maxsavfltreguse; /* max used saved float register count */
122 int freetmpinttop; /* free scratch integer register count */
123 int freesavinttop; /* free saved integer register count */
124 int freetmpflttop; /* free scratch float register count */
125 int freesavflttop; /* free saved float register count */
127 int arguments_num; /* size of parameter field in the stackframe */
131 /* function prototypes */
134 void reg_setup(methodinfo *m, registerdata *rd, t_inlining_globals *id);
135 void reg_free(methodinfo *m, registerdata *rd);
137 void regalloc(methodinfo *m, codegendata *cd, registerdata *rd);
143 * These are local overrides for various environment variables in Emacs.
144 * Please do not remove this and leave it at the end of the file, where
145 * Emacs will automagically detect them.
146 * ---------------------------------------------------------------------
149 * indent-tabs-mode: t