/* 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 767 2003-12-13 22:53:49Z twisti $
+ $Id: reg.h 2222 2005-04-05 17:38:04Z christian $
*/
#ifndef _REG_H
#define _REG_H
-/* global variables */
-extern varinfo5 *locals;
-extern varinfo5 *interfaces;
-
-extern int intreg_argnum;
-extern int fltreg_argnum;
-extern int arguments_num;
+/* #define INVOKE_NEW_DEBUG */
+
+/* preliminary define for testing of the new creation of ARGVAR Stackslots in stack.c */
+/* Changes affect handling of ARGVAR Stackslots in reg_of_var in codegen.inc */
+/* and calculation of rd->ifmemuse in reg.inc */
+
+/* We typedef these structures before #includes to resolve circular */
+/* dependencies. */
+
+typedef struct varinfo varinfo;
+typedef struct registerdata registerdata;
+
+
+#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 fltregsnum; /* absolute number of float registers */
+
+ int intreg_ret; /* register to return integer values */
+ int intreg_argnum; /* number of integer argument registers */
+
+ int fltreg_ret; /* register for return float values */
+ int fltreg_argnum; /* number of float argument registers */
+
+
+ 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 adrregsnum; /* absolute number of address registers */
+ int adrreg_ret; /* register to return address values */
+ int adrreg_argnum; /* number of address argument registers */
+ 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 tmpadrregcnt; /* scratch address register count */
+ int savadrregcnt; /* saved address register count */
+ int iftmpadrregcnt; /* iface scratch address register count */
+ int ifsavadrregcnt; /* iface saved address register count */
+ int argadrreguse; /* used argument address register count */
+ int tmpadrreguse; /* used scratch address register count */
+ int savadrreguse; /* used saved address register count */
+ int maxargadrreguse; /* max used argument address register count */
+ int maxtmpadrreguse; /* max used scratch address register count */
+ int maxsavadrreguse; /* max used saved address register count */
+ int freetmpadrtop; /* free scratch address register count */
+ int freesavadrtop; /* free saved address register count */
+#if defined(USE_UNUSED_ARGUMENT_REGISTERS)
+ int ifargadrregcnt; /* iface argument address register count */
+#endif
+#endif
+
+#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 */
+#if defined(USE_UNUSED_ARGUMENT_REGISTERS)
+ int ifargintregcnt; /* iface argument float register count */
+ int ifargfltregcnt; /* iface argument float register count */
+#endif
+
+ 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();
-
-static void interface_regalloc();
-static void local_regalloc();
-static void allocate_scratch_registers();
+void regalloc(methodinfo *m, codegendata *cd, registerdata *rd);
+#ifdef STATISTICS
+void reg_make_statistics( methodinfo *, codegendata *, registerdata *);
+#endif
#endif /* _REG_H */