/* 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 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.
Authors: Christian Thalinger
- $Id: reg.h 1152 2004-06-07 10:09:20Z twisti $
+ $Id: reg.h 1735 2004-12-07 14:33:27Z twisti $
*/
#ifndef _REG_H
#define _REG_H
-/* global variables */
+/* We typedef these structures before #includes to resolve circular */
+/* dependencies. */
-extern varinfo5 *locals;
-extern varinfo5 *interfaces;
+typedef struct varinfo varinfo;
+typedef struct registerdata registerdata;
-extern int intreg_argnum;
-extern int fltreg_argnum;
-extern int arguments_num;
+
+#include "types.h"
+#include "vm/jit/codegen.inc.h"
+#include "vm/jit/jit.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 intregsnum; /* absolute number of integer registers */
+ int floatregsnum; /* absolute number of float registers */
+
+ int intreg_ret; /* register to return integer values */
+ int intreg_argnum; /* number of integer argument registers */
+
+ int floatreg_ret; /* register for return float values */
+ int fltreg_argnum; /* number of float argument registers */
+
+
+ int *argintregs; /* scratch integer registers */
+ int *tmpintregs; /* scratch integer registers */
+ int *savintregs; /* saved integer registers */
+ int *argfltregs; /* scratch 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 USETWOREGS
+ int *secondregs; /* used for longs in 2 32 bit registers */
+#endif
+
+ int *freemem; /* free scratch memory */
+ int memuse; /* used memory count */
+ int ifmemuse; /* interface used memory count */
+ int maxmemuse; /* maximal used memory count (spills) */
+ int freememtop; /* free memory count */
+
+ int tmpintregcnt; /* scratch integer register count */
+ int savintregcnt; /* saved integer register count */
+ int tmpfltregcnt; /* scratch float register count */
+ int savfltregcnt; /* saved float register count */
+
+ int iftmpintregcnt; /* iface scratch integer register count */
+ int ifsavintregcnt; /* iface saved integer register count */
+ int iftmpfltregcnt; /* iface scratch float register count */
+ int ifsavfltregcnt; /* iface saved float register 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 maxargintreguse; /* max used argument int register count */
+ int maxtmpintreguse; /* max used scratch int register count */
+ int maxsavintreguse; /* max used saved int register count */
+ int maxargfltreguse; /* max used argument float register count */
+ int maxtmpfltreguse; /* max used scratch float register count */
+ int maxsavfltreguse; /* max used saved 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 */
+
+ int arguments_num; /* size of parameter field in the stackframe */
+};
/* function prototypes */
+
void reg_init();
-void reg_setup();
+void reg_setup(methodinfo *m, registerdata *rd, t_inlining_globals *id);
+void reg_free(methodinfo *m, registerdata *rd);
void reg_close();
-void local_init();
-void regalloc();
+void regalloc(methodinfo *m, codegendata *cd, registerdata *rd);
#endif /* _REG_H */
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