/* src/vm/jit/codegen-common.h - architecture independent code generator stuff
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2006, 2007 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
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Christian Thalinger
-
- Changes: Christian Ullrich
- Edwin Steiner
-
- $Id: codegen-common.h 5925 2006-11-05 23:11:27Z edwin $
-
*/
/* forward typedefs ***********************************************************/
-typedef struct codegendata codegendata;
-typedef struct codegen_critical_section_t codegen_critical_section_t;
+typedef struct codegendata codegendata;
+typedef struct branchref branchref;
+typedef struct branch_label_ref_t branch_label_ref_t;
+typedef struct critical_section_ref_t critical_section_ref_t;
+typedef struct jumpref jumpref;
+typedef struct dataref dataref;
+typedef struct exceptionref exceptionref;
+typedef struct patchref patchref;
+typedef struct linenumberref linenumberref;
#include "config.h"
#include "vm/types.h"
#include "vm/global.h"
-#include "vm/references.h"
-#include "vm/method.h"
+
#include "vm/jit/dseg.h"
#include "vm/jit/jit.h"
#include "vm/jit/reg.h"
#include "vm/jit/code.h"
+#include "vm/jit/replace.h"
+
+#include "vmcore/descriptor.h"
+#include "vmcore/method.h"
+#include "vmcore/references.h"
#define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
#define GET_HIGH_REG(a) (((a) & 0xffff0000) >> 16)
-/************************* critical sections *********************************/
+/* branch conditions **********************************************************/
-struct codegen_critical_section_t {
- codegen_critical_section_t *next;
- s4 mcodebegin;
- s4 mcodeend;
- s4 mcoderestart;
-};
+#define BRANCH_UNCONDITIONAL -1
+
+#define BRANCH_EQ (ICMD_IFEQ - ICMD_IFEQ)
+#define BRANCH_NE (ICMD_IFNE - ICMD_IFEQ)
+#define BRANCH_LT (ICMD_IFLT - ICMD_IFEQ)
+#define BRANCH_GE (ICMD_IFGE - ICMD_IFEQ)
+#define BRANCH_GT (ICMD_IFGT - ICMD_IFEQ)
+#define BRANCH_LE (ICMD_IFLE - ICMD_IFEQ)
+#define BRANCH_ULT 256
+#define BRANCH_ULE 257
+#define BRANCH_UGE 258
+#define BRANCH_UGT 259
+
+#define BRANCH_NAN 260
+
+
+/* common branch options ******************************************************/
+
+#define BRANCH_OPT_NONE 0
+
+
+/* codegendata ****************************************************************/
struct codegendata {
+ u4 flags; /* code generator flags */
u1 *mcodebase; /* base pointer of code area */
u1 *mcodeend; /* pointer to end of code area */
s4 mcodesize; /* complete size of code area (bytes) */
jumpref *jumpreferences; /* list of jumptable target addresses */
-#if defined(__I386__) || defined(__X86_64__) || defined(__XDSPCORE__) || defined(ENABLE_INTRP)
+#if defined(__I386__) || defined(__X86_64__) || defined(__XDSPCORE__) || defined(__M68K__) || defined(ENABLE_INTRP) || defined(__S390__)
dataref *datareferences; /* list of data segment references */
#endif
- exceptionref *exceptionrefs; /* list of exception branches */
+/* list_t *patchrefs; */
patchref *patchrefs;
+ list_t *brancheslabel;
+ list_t *listcritical; /* list of critical sections */
linenumberref *linenumberreferences; /* list of line numbers and the */
/* program counters of their first */
methodinfo *method;
- codegen_critical_section_t *threadcrit; /* List of critical code regions */
- codegen_critical_section_t threadcritcurrent;
- s4 threadcritcount; /* Number of critical regions */
-
- s4 maxstack;
s4 stackframesize; /* stackframe size of this method */
+
+#if defined(ENABLE_REPLACEMENT)
+ rplpoint *replacementpoint; /* current replacement point */
+#endif
+};
+
+
+#define CODEGENDATA_FLAG_ERROR 0x00000001
+#define CODEGENDATA_FLAG_LONGBRANCHES 0x00000002
+
+
+#define CODEGENDATA_HAS_FLAG_ERROR(cd) \
+ ((cd)->flags & CODEGENDATA_FLAG_ERROR)
+
+#define CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) \
+ ((cd)->flags & CODEGENDATA_FLAG_LONGBRANCHES)
+
+
+/* branchref *****************************************************************/
+
+struct branchref {
+ s4 branchmpc; /* patching position in code segment */
+ s4 condition; /* conditional branch condition */
+ s4 reg; /* register number to check */
+ u4 options; /* branch options */
+ branchref *next; /* next element in branchref list */
+};
+
+
+/* branch_label_ref_t *********************************************************/
+
+struct branch_label_ref_t {
+ s4 mpc; /* position in code segment */
+ s4 label; /* label number */
+ s4 condition; /* conditional branch condition */
+ s4 reg; /* register number to check */
+ u4 options; /* branch options */
+ listnode_t linkage;
+};
+
+
+/* critical_section_ref_t *****************************************************/
+
+struct critical_section_ref_t {
+ s4 start; /* relative offset to method entry-point */
+ s4 end;
+ s4 restart;
+ listnode_t linkage;
+};
+
+
+/* jumpref ********************************************************************/
+
+struct jumpref {
+ s4 tablepos; /* patching position in data segment */
+ basicblock *target; /* target basic block */
+ jumpref *next; /* next element in jumpref list */
+};
+
+
+/* dataref ********************************************************************/
+
+struct dataref {
+ s4 datapos; /* patching position in generated code */
+ dataref *next; /* next element in dataref list */
+};
+
+
+/* patchref *******************************************************************/
+
+struct patchref {
+ s4 branchpos; /* relative offset to method entrypoint */
+ s4 disp; /* displacement of ref in the data segment */
+ functionptr patcher; /* patcher function to call */
+ voidptr ref; /* reference passed */
+/* listnode linkage; */
+ patchref *next;
+};
+
+
+/* linenumberref **************************************************************/
+
+struct linenumberref {
+ s4 tablepos; /* patching position in data segment */
+ s4 linenumber; /* line number, used for inserting into the */
+ /* table and for validity checking */
+ /* -1......start of inlined body */
+ /* -2......end of inlined body */
+ /* <= -3...special entry with methodinfo * */
+ /* (see doc/inlining_stacktrace.txt) */
+ ptrint targetmpc; /* machine code program counter of first */
+ /* instruction for given line */
+ /* NOTE: for linenumber <= -3 this is a the */
+ /* (methodinfo *) of the inlined method */
+ linenumberref *next; /* next element in linenumberref list */
};
void codegen_init(void);
void codegen_setup(jitdata *jd);
+bool codegen_generate(jitdata *jd);
+bool codegen_emit(jitdata *jd);
+
+#if defined(ENABLE_INTRP)
+bool intrp_codegen(jitdata *jd);
+#endif
+
void codegen_close(void);
void codegen_increase(codegendata *cd);
u1 *codegen_ncode_increase(codegendata *cd, u1 *ncodeptr);
#endif
-void codegen_addreference(codegendata *cd, basicblock *target);
+void codegen_add_branch_ref(codegendata *cd, basicblock *target, s4 condition, s4 reg, u4 options);
+void codegen_resolve_branchrefs(codegendata *cd, basicblock *bptr);
-void codegen_add_arithmeticexception_ref(codegendata *cd);
-void codegen_add_arrayindexoutofboundsexception_ref(codegendata *cd, s4 reg);
-void codegen_add_arraystoreexception_ref(codegendata *cd);
-void codegen_add_classcastexception_ref(codegendata *cd, s4 reg);
-void codegen_add_nullpointerexception_ref(codegendata *cd);
-void codegen_add_fillinstacktrace_ref(codegendata *cd);
+void codegen_branch_label_add(codegendata *cd, s4 label, s4 condition, s4 reg, u4 options);
-void codegen_addpatchref(codegendata *cd, functionptr patcher, voidptr ref,
- s4 disp);
+void codegen_add_patch_ref(codegendata *cd, functionptr patcher, voidptr ref,
+ s4 disp);
+/* XXX REMOVE ME: don't-break-trunk macro */
+#define codegen_addpatchref codegen_add_patch_ref
void codegen_insertmethod(u1 *startpc, u1 *endpc);
u1 *codegen_get_pv_from_pc(u1 *pc);
u1 *codegen_get_pv_from_pc_nocheck(u1 *pc);
+#if defined(ENABLE_REPLACEMENT)
+#if !defined(NDEBUG)
+void codegen_set_replacement_point_notrap(codegendata *cd, s4 type);
+void codegen_set_replacement_point(codegendata *cd, s4 type);
+#else
+void codegen_set_replacement_point_notrap(codegendata *cd);
+void codegen_set_replacement_point(codegendata *cd);
+#endif
+#endif /* defined(ENABLE_REPLACEMENT) */
+
void codegen_finish(jitdata *jd);
-codeinfo *codegen_createnativestub(functionptr f, methodinfo *m);
#if defined(ENABLE_DISASSEMBLER)
void codegen_disassemble_nativestub(methodinfo *m, u1 *start, u1 *end);
#endif
-void codegen_start_native_call(u1 *datasp, u1 *pv, u1 *sp, u1 *ra);
-java_objectheader *codegen_finish_native_call(u1 *datasp);
+/* stub functions */
-u1 *createcompilerstub(methodinfo *m);
-u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd);
+u1 *codegen_generate_stub_compiler(methodinfo *m);
+codeinfo *codegen_generate_stub_native(methodinfo *m, functionptr f);
+
+void codegen_emit_stub_compiler(jitdata *jd);
+void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f);
#if defined(ENABLE_INTRP)
u1 *intrp_createcompilerstub(methodinfo *m);
void removecompilerstub(u1 *stub);
void removenativestub(u1 *stub);
+void codegen_start_native_call(u1 *datasp, u1 *pv, u1 *sp, u1 *ra);
+java_object_t *codegen_finish_native_call(u1 *datasp);
+
s4 codegen_reg_of_var(u2 opcode, varinfo *v, s4 tempregnum);
s4 codegen_reg_of_dst(jitdata *jd, instruction *iptr, s4 tempregnum);
#if defined(ENABLE_THREADS)
-void codegen_threadcritrestart(codegendata *cd, int offset);
-void codegen_threadcritstart(codegendata *cd, int offset);
-void codegen_threadcritstop(codegendata *cd, int offset);
+void codegen_critical_section_new(codegendata *cd);
+void codegen_critical_section_start(codegendata *cd);
+void codegen_critical_section_end(codegendata *cd);
+
+# define CODEGEN_CRITICAL_SECTION_NEW codegen_critical_section_new(cd)
+# define CODEGEN_CRITICAL_SECTION_START codegen_critical_section_start(cd)
+# define CODEGEN_CRITICAL_SECTION_END codegen_critical_section_end(cd)
+#else
+# define CODEGEN_CRITICAL_SECTION_NEW /* no-op */
+# define CODEGEN_CRITICAL_SECTION_START /* no-op */
+# define CODEGEN_CRITICAL_SECTION_END /* no-op */
#endif
/* machine dependent functions */
u1 *md_codegen_get_pv_from_pc(u1 *ra);
-bool codegen(jitdata *jd);
-#if defined(ENABLE_INTRP)
-bool intrp_codegen(jitdata *jd);
+#if defined(ENABLE_SSA)
+void codegen_emit_phi_moves(jitdata *jd, basicblock *bptr);
#endif
#endif /* _CODEGEN_COMMON_H */
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