1 /* jit/reg.h - register allocator header
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 Institut f. Computersprachen, TU Wien
5 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser, M. Probst,
6 S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich,
9 This file is part of CACAO.
11 This program is free software; you can redistribute it and/or
12 modify it under the terms of the GNU General Public License as
13 published by the Free Software Foundation; either version 2, or (at
14 your option) any later version.
16 This program is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 Contact: cacao@complang.tuwien.ac.at
28 Authors: Christian Thalinger
30 $Id: reg.h 1494 2004-11-12 13:34:26Z twisti $
39 #include "jit/codegen.inc.h"
43 /************************* pseudo variable structure **************************/
45 typedef struct varinfo varinfo;
48 int type; /* basic type of variable */
49 int flags; /* flags (SAVED, INMEMORY) */
50 int regoff; /* register number or memory offset */
53 typedef struct varinfo varinfo5[5];
56 typedef struct registerdata registerdata;
62 int intregsnum; /* absolute number of integer registers */
63 int floatregsnum; /* absolute number of float registers */
65 int intreg_ret; /* register to return integer values */
66 int intreg_argnum; /* number of integer argument registers */
68 int floatreg_ret; /* register for return float values */
69 int fltreg_argnum; /* number of float argument registers */
72 int *argintregs; /* scratch integer registers */
73 int *tmpintregs; /* scratch integer registers */
74 int *savintregs; /* saved integer registers */
75 int *argfltregs; /* scratch float registers */
76 int *tmpfltregs; /* scratch float registers */
77 int *savfltregs; /* saved float registers */
78 int *freeargintregs; /* free argument integer registers */
79 int *freetmpintregs; /* free scratch integer registers */
80 int *freesavintregs; /* free saved integer registers */
81 int *freeargfltregs; /* free argument float registers */
82 int *freetmpfltregs; /* free scratch float registers */
83 int *freesavfltregs; /* free saved float registers */
86 int *secondregs; /* used for longs in 2 32 bit registers */
89 int *freemem; /* free scratch memory */
90 int memuse; /* used memory count */
91 int ifmemuse; /* interface used memory count */
92 int maxmemuse; /* maximal used memory count (spills) */
93 int freememtop; /* free memory count */
95 int tmpintregcnt; /* scratch integer register count */
96 int savintregcnt; /* saved integer register count */
97 int tmpfltregcnt; /* scratch float register count */
98 int savfltregcnt; /* saved float register count */
100 int iftmpintregcnt; /* iface scratch integer register count */
101 int ifsavintregcnt; /* iface saved integer register count */
102 int iftmpfltregcnt; /* iface scratch float register count */
103 int ifsavfltregcnt; /* iface saved float register count */
105 int argintreguse; /* used argument integer register count */
106 int tmpintreguse; /* used scratch integer register count */
107 int savintreguse; /* used saved integer register count */
108 int argfltreguse; /* used argument float register count */
109 int tmpfltreguse; /* used scratch float register count */
110 int savfltreguse; /* used saved float register count */
112 int maxargintreguse; /* max used argument int register count */
113 int maxtmpintreguse; /* max used scratch int register count */
114 int maxsavintreguse; /* max used saved int register count */
115 int maxargfltreguse; /* max used argument float register count */
116 int maxtmpfltreguse; /* max used scratch float register count */
117 int maxsavfltreguse; /* max used saved float register count */
119 int freetmpinttop; /* free scratch integer register count */
120 int freesavinttop; /* free saved integer register count */
121 int freetmpflttop; /* free scratch float register count */
122 int freesavflttop; /* free saved float register count */
124 int arguments_num; /* size of parameter field in the stackframe */
128 /* function prototypes */
131 void reg_setup(methodinfo *m, registerdata *rd, t_inlining_globals *id);
132 void reg_free(methodinfo *m, registerdata *rd);
134 void regalloc(methodinfo *m, codegendata *cd, registerdata *rd);
140 * These are local overrides for various environment variables in Emacs.
141 * Please do not remove this and leave it at the end of the file, where
142 * Emacs will automagically detect them.
143 * ---------------------------------------------------------------------
146 * indent-tabs-mode: t