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 1621 2004-11-30 13:06:55Z twisti $
39 #include "vm/jit/codegen.inc.h"
40 #include "vm/jit/jit.h"
41 #include "vm/jit/inline/inline.h"
44 /************************* pseudo variable structure **************************/
46 typedef struct varinfo varinfo;
49 int type; /* basic type of variable */
50 int flags; /* flags (SAVED, INMEMORY) */
51 int regoff; /* register number or memory offset */
54 typedef struct varinfo varinfo5[5];
57 typedef struct registerdata registerdata;
63 int intregsnum; /* absolute number of integer registers */
64 int floatregsnum; /* absolute number of float registers */
66 int intreg_ret; /* register to return integer values */
67 int intreg_argnum; /* number of integer argument registers */
69 int floatreg_ret; /* register for return float values */
70 int fltreg_argnum; /* number of float argument registers */
73 int *argintregs; /* scratch integer registers */
74 int *tmpintregs; /* scratch integer registers */
75 int *savintregs; /* saved integer registers */
76 int *argfltregs; /* scratch float registers */
77 int *tmpfltregs; /* scratch float registers */
78 int *savfltregs; /* saved float registers */
79 int *freeargintregs; /* free argument integer registers */
80 int *freetmpintregs; /* free scratch integer registers */
81 int *freesavintregs; /* free saved integer registers */
82 int *freeargfltregs; /* free argument float registers */
83 int *freetmpfltregs; /* free scratch float registers */
84 int *freesavfltregs; /* free saved float registers */
87 int *secondregs; /* used for longs in 2 32 bit registers */
90 int *freemem; /* free scratch memory */
91 int memuse; /* used memory count */
92 int ifmemuse; /* interface used memory count */
93 int maxmemuse; /* maximal used memory count (spills) */
94 int freememtop; /* free memory count */
96 int tmpintregcnt; /* scratch integer register count */
97 int savintregcnt; /* saved integer register count */
98 int tmpfltregcnt; /* scratch float register count */
99 int savfltregcnt; /* saved float register count */
101 int iftmpintregcnt; /* iface scratch integer register count */
102 int ifsavintregcnt; /* iface saved integer register count */
103 int iftmpfltregcnt; /* iface scratch float register count */
104 int ifsavfltregcnt; /* iface saved float register count */
106 int argintreguse; /* used argument integer register count */
107 int tmpintreguse; /* used scratch integer register count */
108 int savintreguse; /* used saved integer register count */
109 int argfltreguse; /* used argument float register count */
110 int tmpfltreguse; /* used scratch float register count */
111 int savfltreguse; /* used saved float register count */
113 int maxargintreguse; /* max used argument int register count */
114 int maxtmpintreguse; /* max used scratch int register count */
115 int maxsavintreguse; /* max used saved int register count */
116 int maxargfltreguse; /* max used argument float register count */
117 int maxtmpfltreguse; /* max used scratch float register count */
118 int maxsavfltreguse; /* max used saved float register count */
120 int freetmpinttop; /* free scratch integer register count */
121 int freesavinttop; /* free saved integer register count */
122 int freetmpflttop; /* free scratch float register count */
123 int freesavflttop; /* free saved float register count */
125 int arguments_num; /* size of parameter field in the stackframe */
129 /* function prototypes */
132 void reg_setup(methodinfo *m, registerdata *rd, t_inlining_globals *id);
133 void reg_free(methodinfo *m, registerdata *rd);
135 void regalloc(methodinfo *m, codegendata *cd, registerdata *rd);
141 * These are local overrides for various environment variables in Emacs.
142 * Please do not remove this and leave it at the end of the file, where
143 * Emacs will automagically detect them.
144 * ---------------------------------------------------------------------
147 * indent-tabs-mode: t