-/* jit/reg.h - register allocator header
+/* src/vm/jit/reg.h - register allocator header
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- Institut f. Computersprachen, TU Wien
- R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser, M. Probst,
- S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich,
- J. Wenninger
+ Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+ E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+ J. Wenninger, Institut f. Computersprachen - TU Wien
This file is part of CACAO.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- Contact: cacao@complang.tuwien.ac.at
+ Contact: cacao@cacaojvm.org
Authors: Christian Thalinger
- $Id: reg.h 557 2003-11-02 22:51:59Z twisti $
+ Changes: Christian Ullrich
+
+ $Id: reg.h 4357 2006-01-22 23:33:38Z twisti $
*/
#ifndef _REG_H
#define _REG_H
-/* global variables */
-extern varinfo5 *locals;
-extern varinfo5 *interfaces;
-extern int intreg_argnum;
-extern int arguments_num;
-
-
-/* function prototypes */
-void reg_init();
-void reg_close();
-void local_init();
-void regalloc();
-static void interface_regalloc();
-static void local_regalloc();
-static void allocate_scratch_registers();
+/* We typedef these structures before #includes to resolve circular */
+/* dependencies. */
+
+typedef struct varinfo varinfo;
+typedef struct registerdata registerdata;
+
+
+#include "config.h"
+#include "vm/types.h"
+
+#include "arch.h"
+#include "vm/jit/inline/inline.h"
+
+
+/************************* pseudo variable structure **************************/
+
+struct varinfo {
+ int type; /* basic type of variable */
+ int flags; /* flags (SAVED, INMEMORY) */
+ int regoff; /* register number or memory offset */
+};
+
+typedef struct varinfo varinfo5[5];
+
+
+struct registerdata {
+ varinfo5 *locals;
+ varinfo5 *interfaces;
+
+
+ int intreg_ret; /* register to return integer values */
+ int fltreg_ret; /* register for return float values */
+
+ int *argintregs; /* argument integer registers */
+ int *tmpintregs; /* scratch integer registers */
+ int *savintregs; /* saved integer registers */
+ int *argfltregs; /* argument float registers */
+ int *tmpfltregs; /* scratch float registers */
+ int *savfltregs; /* saved float registers */
+ int *freeargintregs; /* free argument integer registers */
+ int *freetmpintregs; /* free scratch integer registers */
+ int *freesavintregs; /* free saved integer registers */
+ int *freeargfltregs; /* free argument float registers */
+ int *freetmpfltregs; /* free scratch float registers */
+ int *freesavfltregs; /* free saved float registers */
+
+#ifdef HAS_ADDRESS_REGISTER_FILE
+ int adrreg_ret; /* register to return address values */
+
+ int *argadrregs; /* argument address registers */
+ int *tmpadrregs; /* scratch address registers */
+ int *savadrregs; /* saved address registers */
+ int *freeargadrregs; /* free argument address registers */
+ int *freetmpadrregs; /* free scratch address registers */
+ int *freesavadrregs; /* free saved address registers */
+
+ int argadrreguse; /* used argument address register count */
+ int tmpadrreguse; /* used scratch address register count */
+ int savadrreguse; /* used saved address register count */
+
+ int freetmpadrtop; /* free scratch address register count */
+ int freesavadrtop; /* free saved address register count */
+ int freeargadrtop; /* free argument address register count */
+#endif
+
+#if defined(HAS_4BYTE_STACKSLOT)
+ int *freemem_2;
+ int freememtop_2;
+#endif
+ int *freemem; /* free scratch memory */
+ int freememtop; /* free memory count */
+
+ int memuse; /* used memory count */
+
+ int argintreguse; /* used argument integer register count */
+ int tmpintreguse; /* used scratch integer register count */
+ int savintreguse; /* used saved integer register count */
+ int argfltreguse; /* used argument float register count */
+ int tmpfltreguse; /* used scratch float register count */
+ int savfltreguse; /* used saved float register count */
+
+ int freearginttop; /* free argument integer register count */
+ int freeargflttop; /* free argument float register count */
+ int freetmpinttop; /* free scratch integer register count */
+ int freesavinttop; /* free saved integer register count */
+ int freetmpflttop; /* free scratch float register count */
+ int freesavflttop; /* free saved float register count */
+};
+
+
+/* global variables ***********************************************************/
+
+extern s4 nregdescint[];
+extern s4 nregdescfloat[];
+
+
+/* function prototypes ********************************************************/
+
+void reg_setup(methodinfo *m, registerdata *rd, t_inlining_globals *id);
#endif /* _REG_H */
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