300 friend BasicType as_BasicType(OprType t);
301
302 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
303 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
304
305 static OprSize size_for(BasicType t) {
306 switch (t) {
307 case T_LONG:
308 case T_DOUBLE:
309 return double_size;
310 break;
311
312 case T_FLOAT:
313 case T_BOOLEAN:
314 case T_CHAR:
315 case T_BYTE:
316 case T_SHORT:
317 case T_INT:
318 case T_ADDRESS:
319 case T_OBJECT:
320 case T_ARRAY:
321 case T_METADATA:
322 return single_size;
323 break;
324
325 default:
326 ShouldNotReachHere();
327 return single_size;
328 }
329 }
330
331
332 void validate_type() const PRODUCT_RETURN;
333
334 BasicType type() const {
335 if (is_pointer()) {
336 return pointer()->type();
337 }
338 return as_BasicType(type_field());
339 }
450 #endif
451
452 jint as_jint() const { return as_constant_ptr()->as_jint(); }
453 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
454 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
455 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
456 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
457
458 void print() const PRODUCT_RETURN;
459 void print(outputStream* out) const PRODUCT_RETURN;
460 };
461
462
463 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
464 switch (type) {
465 case T_INT: return LIR_OprDesc::int_type;
466 case T_LONG: return LIR_OprDesc::long_type;
467 case T_FLOAT: return LIR_OprDesc::float_type;
468 case T_DOUBLE: return LIR_OprDesc::double_type;
469 case T_OBJECT:
470 case T_ARRAY: return LIR_OprDesc::object_type;
471 case T_ADDRESS: return LIR_OprDesc::address_type;
472 case T_METADATA: return LIR_OprDesc::metadata_type;
473 case T_ILLEGAL: // fall through
474 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
475 }
476 }
477
478 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
479 switch (t) {
480 case LIR_OprDesc::int_type: return T_INT;
481 case LIR_OprDesc::long_type: return T_LONG;
482 case LIR_OprDesc::float_type: return T_FLOAT;
483 case LIR_OprDesc::double_type: return T_DOUBLE;
484 case LIR_OprDesc::object_type: return T_OBJECT;
485 case LIR_OprDesc::address_type: return T_ADDRESS;
486 case LIR_OprDesc::metadata_type:return T_METADATA;
487 case LIR_OprDesc::unknown_type: // fall through
488 default: ShouldNotReachHere(); return T_ILLEGAL;
489 }
640 }
641 static LIR_Opr double_xmm(int reg) {
642 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
643 (reg << LIR_OprDesc::reg2_shift) |
644 LIR_OprDesc::double_type |
645 LIR_OprDesc::fpu_register |
646 LIR_OprDesc::double_size |
647 LIR_OprDesc::is_xmm_mask);
648 }
649 #endif // X86
650
651 static LIR_Opr virtual_register(int index, BasicType type) {
652 if (index > LIR_OprDesc::vreg_max) {
653 // Running out of virtual registers. Caller should bailout.
654 return illegalOpr;
655 }
656
657 LIR_Opr res;
658 switch (type) {
659 case T_OBJECT: // fall through
660 case T_ARRAY:
661 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
662 LIR_OprDesc::object_type |
663 LIR_OprDesc::cpu_register |
664 LIR_OprDesc::single_size |
665 LIR_OprDesc::virtual_mask);
666 break;
667
668 case T_METADATA:
669 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
670 LIR_OprDesc::metadata_type|
671 LIR_OprDesc::cpu_register |
672 LIR_OprDesc::single_size |
673 LIR_OprDesc::virtual_mask);
674 break;
675
676 case T_INT:
677 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
678 LIR_OprDesc::int_type |
679 LIR_OprDesc::cpu_register |
745 t |
746 LIR_OprDesc::cpu_register |
747 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
748 #else // __SOFTFP__
749 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
750 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
751 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
752 assert(res == old_res, "old and new method not equal");
753 #endif // __SOFTFP__
754 #endif // ASSERT
755
756 return res;
757 }
758
759 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
760 // the index is platform independent; a double stack useing indeces 2 and 3 has always
761 // index 2.
762 static LIR_Opr stack(int index, BasicType type) {
763 LIR_Opr res;
764 switch (type) {
765 case T_OBJECT: // fall through
766 case T_ARRAY:
767 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
768 LIR_OprDesc::object_type |
769 LIR_OprDesc::stack_value |
770 LIR_OprDesc::single_size);
771 break;
772
773 case T_METADATA:
774 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
775 LIR_OprDesc::metadata_type |
776 LIR_OprDesc::stack_value |
777 LIR_OprDesc::single_size);
778 break;
779 case T_INT:
780 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
781 LIR_OprDesc::int_type |
782 LIR_OprDesc::stack_value |
783 LIR_OprDesc::single_size);
784 break;
858 class LIR_Op;
859 class LIR_Op0;
860 class LIR_OpLabel;
861 class LIR_Op1;
862 class LIR_OpBranch;
863 class LIR_OpConvert;
864 class LIR_OpAllocObj;
865 class LIR_OpReturn;
866 class LIR_OpRoundFP;
867 class LIR_Op2;
868 class LIR_OpDelay;
869 class LIR_Op3;
870 class LIR_OpAllocArray;
871 class LIR_OpCall;
872 class LIR_OpJavaCall;
873 class LIR_OpRTCall;
874 class LIR_OpArrayCopy;
875 class LIR_OpUpdateCRC32;
876 class LIR_OpLock;
877 class LIR_OpTypeCheck;
878 class LIR_OpCompareAndSwap;
879 class LIR_OpProfileCall;
880 class LIR_OpProfileType;
881 #ifdef ASSERT
882 class LIR_OpAssert;
883 #endif
884
885 // LIR operation codes
886 enum LIR_Code {
887 lir_none
888 , begin_op0
889 , lir_label
890 , lir_nop
891 , lir_std_entry
892 , lir_osr_entry
893 , lir_fpop_raw
894 , lir_breakpoint
895 , lir_rtcall
896 , lir_membar
897 , lir_membar_acquire
898 , lir_membar_release
899 , lir_membar_loadload
900 , lir_membar_storestore
901 , lir_membar_loadstore
902 , lir_membar_storeload
903 , lir_get_thread
904 , lir_on_spin_wait
905 , end_op0
906 , begin_op1
907 , lir_fxch
908 , lir_fld
909 , lir_push
910 , lir_pop
911 , lir_null_check
912 , lir_return
913 , lir_leal
914 , lir_branch
915 , lir_cond_float_branch
916 , lir_move
917 , lir_convert
918 , lir_alloc_object
919 , lir_monaddr
920 , lir_roundfp
921 , lir_safepoint
922 , lir_unwind
923 , end_op1
924 , begin_op2
961 , lir_dynamic_call
962 , end_opJavaCall
963 , begin_opArrayCopy
964 , lir_arraycopy
965 , end_opArrayCopy
966 , begin_opUpdateCRC32
967 , lir_updatecrc32
968 , end_opUpdateCRC32
969 , begin_opLock
970 , lir_lock
971 , lir_unlock
972 , end_opLock
973 , begin_delay_slot
974 , lir_delay_slot
975 , end_delay_slot
976 , begin_opTypeCheck
977 , lir_instanceof
978 , lir_checkcast
979 , lir_store_check
980 , end_opTypeCheck
981 , begin_opCompareAndSwap
982 , lir_cas_long
983 , lir_cas_obj
984 , lir_cas_int
985 , end_opCompareAndSwap
986 , begin_opMDOProfile
987 , lir_profile_call
988 , lir_profile_type
989 , end_opMDOProfile
990 , begin_opAssert
991 , lir_assert
992 , end_opAssert
993 };
994
995
996 enum LIR_Condition {
997 lir_cond_equal
998 , lir_cond_notEqual
999 , lir_cond_less
1000 , lir_cond_lessEqual
1001 , lir_cond_greaterEqual
1002 , lir_cond_greater
1003 , lir_cond_belowEqual
1004 , lir_cond_aboveEqual
1005 , lir_cond_always
1006 , lir_cond_unknown = -1
1007 };
1008
1111 virtual bool is_patching() { return false; }
1112 virtual LIR_OpCall* as_OpCall() { return NULL; }
1113 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1114 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1115 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1116 virtual LIR_OpLock* as_OpLock() { return NULL; }
1117 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1118 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1119 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1120 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1121 virtual LIR_OpReturn* as_OpReturn() { return NULL; }
1122 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1123 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1124 virtual LIR_Op0* as_Op0() { return NULL; }
1125 virtual LIR_Op1* as_Op1() { return NULL; }
1126 virtual LIR_Op2* as_Op2() { return NULL; }
1127 virtual LIR_Op3* as_Op3() { return NULL; }
1128 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1129 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1130 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1131 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1132 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1133 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1134 #ifdef ASSERT
1135 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1136 #endif
1137
1138 virtual void verify() const {}
1139 };
1140
1141 // for calls
1142 class LIR_OpCall: public LIR_Op {
1143 friend class LIR_OpVisitState;
1144
1145 protected:
1146 address _addr;
1147 LIR_OprList* _arguments;
1148 protected:
1149 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1150 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1151 : LIR_Op(code, result, info)
1152 , _addr(addr)
1153 , _arguments(arguments) {}
1186 LIR_OprList* arguments, CodeEmitInfo* info)
1187 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1188 , _method(method)
1189 , _receiver(receiver)
1190 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1191 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1192
1193 LIR_Opr receiver() const { return _receiver; }
1194 ciMethod* method() const { return _method; }
1195
1196 // JSR 292 support.
1197 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1198 bool is_method_handle_invoke() const {
1199 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1200 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1201 }
1202
1203 virtual void emit_code(LIR_Assembler* masm);
1204 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1205 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1206 };
1207
1208 // --------------------------------------------------
1209 // LIR_OpLabel
1210 // --------------------------------------------------
1211 // Location where a branch can continue
1212 class LIR_OpLabel: public LIR_Op {
1213 friend class LIR_OpVisitState;
1214
1215 private:
1216 Label* _label;
1217 public:
1218 LIR_OpLabel(Label* lbl)
1219 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1220 , _label(lbl) {}
1221 Label* label() const { return _label; }
1222
1223 virtual void emit_code(LIR_Assembler* masm);
1224 virtual LIR_OpLabel* as_OpLabel() { return this; }
1225 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1237 LIR_Opr _dst_pos;
1238 LIR_Opr _length;
1239 LIR_Opr _tmp;
1240 ciArrayKlass* _expected_type;
1241 int _flags;
1242
1243 public:
1244 enum Flags {
1245 src_null_check = 1 << 0,
1246 dst_null_check = 1 << 1,
1247 src_pos_positive_check = 1 << 2,
1248 dst_pos_positive_check = 1 << 3,
1249 length_positive_check = 1 << 4,
1250 src_range_check = 1 << 5,
1251 dst_range_check = 1 << 6,
1252 type_check = 1 << 7,
1253 overlapping = 1 << 8,
1254 unaligned = 1 << 9,
1255 src_objarray = 1 << 10,
1256 dst_objarray = 1 << 11,
1257 all_flags = (1 << 12) - 1
1258 };
1259
1260 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1261 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1262
1263 LIR_Opr src() const { return _src; }
1264 LIR_Opr src_pos() const { return _src_pos; }
1265 LIR_Opr dst() const { return _dst; }
1266 LIR_Opr dst_pos() const { return _dst_pos; }
1267 LIR_Opr length() const { return _length; }
1268 LIR_Opr tmp() const { return _tmp; }
1269 int flags() const { return _flags; }
1270 ciArrayKlass* expected_type() const { return _expected_type; }
1271 ArrayCopyStub* stub() const { return _stub; }
1272
1273 virtual void emit_code(LIR_Assembler* masm);
1274 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1275 void print_instr(outputStream* out) const PRODUCT_RETURN;
1276 };
1277
1539 };
1540
1541 // LIR_OpTypeCheck
1542 class LIR_OpTypeCheck: public LIR_Op {
1543 friend class LIR_OpVisitState;
1544
1545 private:
1546 LIR_Opr _object;
1547 LIR_Opr _array;
1548 ciKlass* _klass;
1549 LIR_Opr _tmp1;
1550 LIR_Opr _tmp2;
1551 LIR_Opr _tmp3;
1552 bool _fast_check;
1553 CodeEmitInfo* _info_for_patch;
1554 CodeEmitInfo* _info_for_exception;
1555 CodeStub* _stub;
1556 ciMethod* _profiled_method;
1557 int _profiled_bci;
1558 bool _should_profile;
1559
1560 public:
1561 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1562 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1563 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1564 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1565 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1566
1567 LIR_Opr object() const { return _object; }
1568 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1569 LIR_Opr tmp1() const { return _tmp1; }
1570 LIR_Opr tmp2() const { return _tmp2; }
1571 LIR_Opr tmp3() const { return _tmp3; }
1572 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1573 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1574 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1575 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1576 CodeStub* stub() const { return _stub; }
1577
1578 // MethodData* profiling
1579 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1580 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1581 void set_should_profile(bool b) { _should_profile = b; }
1582 ciMethod* profiled_method() const { return _profiled_method; }
1583 int profiled_bci() const { return _profiled_bci; }
1584 bool should_profile() const { return _should_profile; }
1585
1586 virtual bool is_patching() { return _info_for_patch != NULL; }
1587 virtual void emit_code(LIR_Assembler* masm);
1588 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1589 void print_instr(outputStream* out) const PRODUCT_RETURN;
1590 };
1591
1592 // LIR_Op2
1593 class LIR_Op2: public LIR_Op {
1594 friend class LIR_OpVisitState;
1595
1596 int _fpu_stack_size; // for sin/cos implementation on Intel
1597
1598 protected:
1599 LIR_Opr _opr1;
1600 LIR_Opr _opr2;
1601 BasicType _type;
1602 LIR_Opr _tmp1;
1603 LIR_Opr _tmp2;
1604 LIR_Opr _tmp3;
1605 LIR_Opr _tmp4;
1606 LIR_Opr _tmp5;
1607 LIR_Condition _condition;
1608
1609 void verify() const;
1610
1611 public:
1764
1765 //--------------------------------
1766 class LabelObj: public CompilationResourceObj {
1767 private:
1768 Label _label;
1769 public:
1770 LabelObj() {}
1771 Label* label() { return &_label; }
1772 };
1773
1774
1775 class LIR_OpLock: public LIR_Op {
1776 friend class LIR_OpVisitState;
1777
1778 private:
1779 LIR_Opr _hdr;
1780 LIR_Opr _obj;
1781 LIR_Opr _lock;
1782 LIR_Opr _scratch;
1783 CodeStub* _stub;
1784 public:
1785 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1786 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1787 , _hdr(hdr)
1788 , _obj(obj)
1789 , _lock(lock)
1790 , _scratch(scratch)
1791 , _stub(stub) {}
1792
1793 LIR_Opr hdr_opr() const { return _hdr; }
1794 LIR_Opr obj_opr() const { return _obj; }
1795 LIR_Opr lock_opr() const { return _lock; }
1796 LIR_Opr scratch_opr() const { return _scratch; }
1797 CodeStub* stub() const { return _stub; }
1798
1799 virtual void emit_code(LIR_Assembler* masm);
1800 virtual LIR_OpLock* as_OpLock() { return this; }
1801 void print_instr(outputStream* out) const PRODUCT_RETURN;
1802 };
1803
1804
1805 class LIR_OpDelay: public LIR_Op {
1806 friend class LIR_OpVisitState;
1807
1808 private:
1809 LIR_Op* _op;
1810
1811 public:
1812 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1813 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1814 _op(op) {
1815 assert(op->code() == lir_nop, "should be filling with nops");
1816 }
1817 virtual void emit_code(LIR_Assembler* masm);
1944 , _obj(obj)
1945 , _tmp(tmp)
1946 , _exact_klass(exact_klass)
1947 , _current_klass(current_klass)
1948 , _not_null(not_null)
1949 , _no_conflict(no_conflict) { }
1950
1951 LIR_Opr mdp() const { return _mdp; }
1952 LIR_Opr obj() const { return _obj; }
1953 LIR_Opr tmp() const { return _tmp; }
1954 ciKlass* exact_klass() const { return _exact_klass; }
1955 intptr_t current_klass() const { return _current_klass; }
1956 bool not_null() const { return _not_null; }
1957 bool no_conflict() const { return _no_conflict; }
1958
1959 virtual void emit_code(LIR_Assembler* masm);
1960 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
1961 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1962 };
1963
1964 class LIR_InsertionBuffer;
1965
1966 //--------------------------------LIR_List---------------------------------------------------
1967 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1968 // The LIR instructions are appended by the LIR_List class itself;
1969 //
1970 // Notes:
1971 // - all offsets are(should be) in bytes
1972 // - local positions are specified with an offset, with offset 0 being local 0
1973
1974 class LIR_List: public CompilationResourceObj {
1975 private:
1976 LIR_OpList _operations;
1977
1978 Compilation* _compilation;
1979 #ifndef PRODUCT
1980 BlockBegin* _block;
1981 #endif
1982 #ifdef ASSERT
1983 const char * _file;
2201 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2202
2203 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2204 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2205 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2206
2207 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2208 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2209
2210 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2211 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2212 }
2213
2214 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2215 LIR_OprList* arguments, CodeEmitInfo* info) {
2216 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2217 }
2218
2219 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2220 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2221 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2222
2223 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2224
2225 void arraycopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) { append(new LIR_OpArrayCopy(src, src_pos, dst, dst_pos, length, tmp, expected_type, flags, info)); }
2226
2227 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2228
2229 void instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci);
2230 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci);
2231
2232 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2233 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2234 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2235 ciMethod* profiled_method, int profiled_bci);
2236 // MethodData* profiling
2237 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2238 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2239 }
2240 void profile_type(LIR_Address* mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) {
2241 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2242 }
2243
2244 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2245 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2246 #ifdef ASSERT
2247 void lir_assert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) { append(new LIR_OpAssert(condition, opr1, opr2, msg, halt)); }
2248 #endif
2249 };
2250
2251 void print_LIR(BlockList* blocks);
2252
2253 class LIR_InsertionBuffer : public CompilationResourceObj {
2254 private:
2255 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2256
2257 // list of insertion points. index and count are stored alternately:
2258 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2259 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2260 intStack _index_and_count;
2261
2262 // the LIR_Ops to be inserted
|
300 friend BasicType as_BasicType(OprType t);
301
302 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
303 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
304
305 static OprSize size_for(BasicType t) {
306 switch (t) {
307 case T_LONG:
308 case T_DOUBLE:
309 return double_size;
310 break;
311
312 case T_FLOAT:
313 case T_BOOLEAN:
314 case T_CHAR:
315 case T_BYTE:
316 case T_SHORT:
317 case T_INT:
318 case T_ADDRESS:
319 case T_OBJECT:
320 case T_INLINE_TYPE:
321 case T_ARRAY:
322 case T_METADATA:
323 return single_size;
324 break;
325
326 default:
327 ShouldNotReachHere();
328 return single_size;
329 }
330 }
331
332
333 void validate_type() const PRODUCT_RETURN;
334
335 BasicType type() const {
336 if (is_pointer()) {
337 return pointer()->type();
338 }
339 return as_BasicType(type_field());
340 }
451 #endif
452
453 jint as_jint() const { return as_constant_ptr()->as_jint(); }
454 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
455 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
456 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
457 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
458
459 void print() const PRODUCT_RETURN;
460 void print(outputStream* out) const PRODUCT_RETURN;
461 };
462
463
464 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
465 switch (type) {
466 case T_INT: return LIR_OprDesc::int_type;
467 case T_LONG: return LIR_OprDesc::long_type;
468 case T_FLOAT: return LIR_OprDesc::float_type;
469 case T_DOUBLE: return LIR_OprDesc::double_type;
470 case T_OBJECT:
471 case T_INLINE_TYPE:
472 case T_ARRAY: return LIR_OprDesc::object_type;
473 case T_ADDRESS: return LIR_OprDesc::address_type;
474 case T_METADATA: return LIR_OprDesc::metadata_type;
475 case T_ILLEGAL: // fall through
476 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
477 }
478 }
479
480 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
481 switch (t) {
482 case LIR_OprDesc::int_type: return T_INT;
483 case LIR_OprDesc::long_type: return T_LONG;
484 case LIR_OprDesc::float_type: return T_FLOAT;
485 case LIR_OprDesc::double_type: return T_DOUBLE;
486 case LIR_OprDesc::object_type: return T_OBJECT;
487 case LIR_OprDesc::address_type: return T_ADDRESS;
488 case LIR_OprDesc::metadata_type:return T_METADATA;
489 case LIR_OprDesc::unknown_type: // fall through
490 default: ShouldNotReachHere(); return T_ILLEGAL;
491 }
642 }
643 static LIR_Opr double_xmm(int reg) {
644 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
645 (reg << LIR_OprDesc::reg2_shift) |
646 LIR_OprDesc::double_type |
647 LIR_OprDesc::fpu_register |
648 LIR_OprDesc::double_size |
649 LIR_OprDesc::is_xmm_mask);
650 }
651 #endif // X86
652
653 static LIR_Opr virtual_register(int index, BasicType type) {
654 if (index > LIR_OprDesc::vreg_max) {
655 // Running out of virtual registers. Caller should bailout.
656 return illegalOpr;
657 }
658
659 LIR_Opr res;
660 switch (type) {
661 case T_OBJECT: // fall through
662 case T_INLINE_TYPE: // fall through
663 case T_ARRAY:
664 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
665 LIR_OprDesc::object_type |
666 LIR_OprDesc::cpu_register |
667 LIR_OprDesc::single_size |
668 LIR_OprDesc::virtual_mask);
669 break;
670
671 case T_METADATA:
672 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
673 LIR_OprDesc::metadata_type|
674 LIR_OprDesc::cpu_register |
675 LIR_OprDesc::single_size |
676 LIR_OprDesc::virtual_mask);
677 break;
678
679 case T_INT:
680 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
681 LIR_OprDesc::int_type |
682 LIR_OprDesc::cpu_register |
748 t |
749 LIR_OprDesc::cpu_register |
750 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
751 #else // __SOFTFP__
752 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
753 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
754 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
755 assert(res == old_res, "old and new method not equal");
756 #endif // __SOFTFP__
757 #endif // ASSERT
758
759 return res;
760 }
761
762 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
763 // the index is platform independent; a double stack useing indeces 2 and 3 has always
764 // index 2.
765 static LIR_Opr stack(int index, BasicType type) {
766 LIR_Opr res;
767 switch (type) {
768 case T_INLINE_TYPE: // fall through
769 case T_OBJECT: // fall through
770 case T_ARRAY:
771 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
772 LIR_OprDesc::object_type |
773 LIR_OprDesc::stack_value |
774 LIR_OprDesc::single_size);
775 break;
776
777 case T_METADATA:
778 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
779 LIR_OprDesc::metadata_type |
780 LIR_OprDesc::stack_value |
781 LIR_OprDesc::single_size);
782 break;
783 case T_INT:
784 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
785 LIR_OprDesc::int_type |
786 LIR_OprDesc::stack_value |
787 LIR_OprDesc::single_size);
788 break;
862 class LIR_Op;
863 class LIR_Op0;
864 class LIR_OpLabel;
865 class LIR_Op1;
866 class LIR_OpBranch;
867 class LIR_OpConvert;
868 class LIR_OpAllocObj;
869 class LIR_OpReturn;
870 class LIR_OpRoundFP;
871 class LIR_Op2;
872 class LIR_OpDelay;
873 class LIR_Op3;
874 class LIR_OpAllocArray;
875 class LIR_OpCall;
876 class LIR_OpJavaCall;
877 class LIR_OpRTCall;
878 class LIR_OpArrayCopy;
879 class LIR_OpUpdateCRC32;
880 class LIR_OpLock;
881 class LIR_OpTypeCheck;
882 class LIR_OpFlattenedArrayCheck;
883 class LIR_OpNullFreeArrayCheck;
884 class LIR_OpSubstitutabilityCheck;
885 class LIR_OpCompareAndSwap;
886 class LIR_OpProfileCall;
887 class LIR_OpProfileType;
888 class LIR_OpProfileInlineType;
889 #ifdef ASSERT
890 class LIR_OpAssert;
891 #endif
892
893 // LIR operation codes
894 enum LIR_Code {
895 lir_none
896 , begin_op0
897 , lir_label
898 , lir_nop
899 , lir_std_entry
900 , lir_osr_entry
901 , lir_fpop_raw
902 , lir_breakpoint
903 , lir_rtcall
904 , lir_membar
905 , lir_membar_acquire
906 , lir_membar_release
907 , lir_membar_loadload
908 , lir_membar_storestore
909 , lir_membar_loadstore
910 , lir_membar_storeload
911 , lir_get_thread
912 , lir_on_spin_wait
913 , lir_check_orig_pc
914 , end_op0
915 , begin_op1
916 , lir_fxch
917 , lir_fld
918 , lir_push
919 , lir_pop
920 , lir_null_check
921 , lir_return
922 , lir_leal
923 , lir_branch
924 , lir_cond_float_branch
925 , lir_move
926 , lir_convert
927 , lir_alloc_object
928 , lir_monaddr
929 , lir_roundfp
930 , lir_safepoint
931 , lir_unwind
932 , end_op1
933 , begin_op2
970 , lir_dynamic_call
971 , end_opJavaCall
972 , begin_opArrayCopy
973 , lir_arraycopy
974 , end_opArrayCopy
975 , begin_opUpdateCRC32
976 , lir_updatecrc32
977 , end_opUpdateCRC32
978 , begin_opLock
979 , lir_lock
980 , lir_unlock
981 , end_opLock
982 , begin_delay_slot
983 , lir_delay_slot
984 , end_delay_slot
985 , begin_opTypeCheck
986 , lir_instanceof
987 , lir_checkcast
988 , lir_store_check
989 , end_opTypeCheck
990 , begin_opFlattenedArrayCheck
991 , lir_flattened_array_check
992 , end_opFlattenedArrayCheck
993 , begin_opNullFreeArrayCheck
994 , lir_null_free_array_check
995 , end_opNullFreeArrayCheck
996 , begin_opSubstitutabilityCheck
997 , lir_substitutability_check
998 , end_opSubstitutabilityCheck
999 , begin_opCompareAndSwap
1000 , lir_cas_long
1001 , lir_cas_obj
1002 , lir_cas_int
1003 , end_opCompareAndSwap
1004 , begin_opMDOProfile
1005 , lir_profile_call
1006 , lir_profile_type
1007 , lir_profile_inline_type
1008 , end_opMDOProfile
1009 , begin_opAssert
1010 , lir_assert
1011 , end_opAssert
1012 };
1013
1014
1015 enum LIR_Condition {
1016 lir_cond_equal
1017 , lir_cond_notEqual
1018 , lir_cond_less
1019 , lir_cond_lessEqual
1020 , lir_cond_greaterEqual
1021 , lir_cond_greater
1022 , lir_cond_belowEqual
1023 , lir_cond_aboveEqual
1024 , lir_cond_always
1025 , lir_cond_unknown = -1
1026 };
1027
1130 virtual bool is_patching() { return false; }
1131 virtual LIR_OpCall* as_OpCall() { return NULL; }
1132 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1133 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1134 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1135 virtual LIR_OpLock* as_OpLock() { return NULL; }
1136 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1137 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1138 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1139 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1140 virtual LIR_OpReturn* as_OpReturn() { return NULL; }
1141 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1142 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1143 virtual LIR_Op0* as_Op0() { return NULL; }
1144 virtual LIR_Op1* as_Op1() { return NULL; }
1145 virtual LIR_Op2* as_Op2() { return NULL; }
1146 virtual LIR_Op3* as_Op3() { return NULL; }
1147 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1148 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1149 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1150 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return NULL; }
1151 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return NULL; }
1152 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return NULL; }
1153 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1154 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1155 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1156 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return NULL; }
1157 #ifdef ASSERT
1158 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1159 #endif
1160
1161 virtual void verify() const {}
1162 };
1163
1164 // for calls
1165 class LIR_OpCall: public LIR_Op {
1166 friend class LIR_OpVisitState;
1167
1168 protected:
1169 address _addr;
1170 LIR_OprList* _arguments;
1171 protected:
1172 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1173 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1174 : LIR_Op(code, result, info)
1175 , _addr(addr)
1176 , _arguments(arguments) {}
1209 LIR_OprList* arguments, CodeEmitInfo* info)
1210 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1211 , _method(method)
1212 , _receiver(receiver)
1213 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1214 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1215
1216 LIR_Opr receiver() const { return _receiver; }
1217 ciMethod* method() const { return _method; }
1218
1219 // JSR 292 support.
1220 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1221 bool is_method_handle_invoke() const {
1222 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1223 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1224 }
1225
1226 virtual void emit_code(LIR_Assembler* masm);
1227 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1228 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1229
1230 bool maybe_return_as_fields(ciInlineKlass** vk = NULL) const;
1231 };
1232
1233 // --------------------------------------------------
1234 // LIR_OpLabel
1235 // --------------------------------------------------
1236 // Location where a branch can continue
1237 class LIR_OpLabel: public LIR_Op {
1238 friend class LIR_OpVisitState;
1239
1240 private:
1241 Label* _label;
1242 public:
1243 LIR_OpLabel(Label* lbl)
1244 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1245 , _label(lbl) {}
1246 Label* label() const { return _label; }
1247
1248 virtual void emit_code(LIR_Assembler* masm);
1249 virtual LIR_OpLabel* as_OpLabel() { return this; }
1250 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1262 LIR_Opr _dst_pos;
1263 LIR_Opr _length;
1264 LIR_Opr _tmp;
1265 ciArrayKlass* _expected_type;
1266 int _flags;
1267
1268 public:
1269 enum Flags {
1270 src_null_check = 1 << 0,
1271 dst_null_check = 1 << 1,
1272 src_pos_positive_check = 1 << 2,
1273 dst_pos_positive_check = 1 << 3,
1274 length_positive_check = 1 << 4,
1275 src_range_check = 1 << 5,
1276 dst_range_check = 1 << 6,
1277 type_check = 1 << 7,
1278 overlapping = 1 << 8,
1279 unaligned = 1 << 9,
1280 src_objarray = 1 << 10,
1281 dst_objarray = 1 << 11,
1282 always_slow_path = 1 << 12,
1283 src_inlinetype_check = 1 << 13,
1284 dst_inlinetype_check = 1 << 14,
1285 all_flags = (1 << 15) - 1
1286 };
1287
1288 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1289 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1290
1291 LIR_Opr src() const { return _src; }
1292 LIR_Opr src_pos() const { return _src_pos; }
1293 LIR_Opr dst() const { return _dst; }
1294 LIR_Opr dst_pos() const { return _dst_pos; }
1295 LIR_Opr length() const { return _length; }
1296 LIR_Opr tmp() const { return _tmp; }
1297 int flags() const { return _flags; }
1298 ciArrayKlass* expected_type() const { return _expected_type; }
1299 ArrayCopyStub* stub() const { return _stub; }
1300
1301 virtual void emit_code(LIR_Assembler* masm);
1302 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1303 void print_instr(outputStream* out) const PRODUCT_RETURN;
1304 };
1305
1567 };
1568
1569 // LIR_OpTypeCheck
1570 class LIR_OpTypeCheck: public LIR_Op {
1571 friend class LIR_OpVisitState;
1572
1573 private:
1574 LIR_Opr _object;
1575 LIR_Opr _array;
1576 ciKlass* _klass;
1577 LIR_Opr _tmp1;
1578 LIR_Opr _tmp2;
1579 LIR_Opr _tmp3;
1580 bool _fast_check;
1581 CodeEmitInfo* _info_for_patch;
1582 CodeEmitInfo* _info_for_exception;
1583 CodeStub* _stub;
1584 ciMethod* _profiled_method;
1585 int _profiled_bci;
1586 bool _should_profile;
1587 bool _need_null_check;
1588
1589 public:
1590 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1591 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1592 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, bool need_null_check = true);
1593 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1594 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1595
1596 LIR_Opr object() const { return _object; }
1597 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1598 LIR_Opr tmp1() const { return _tmp1; }
1599 LIR_Opr tmp2() const { return _tmp2; }
1600 LIR_Opr tmp3() const { return _tmp3; }
1601 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1602 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1603 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1604 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1605 CodeStub* stub() const { return _stub; }
1606
1607 // MethodData* profiling
1608 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1609 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1610 void set_should_profile(bool b) { _should_profile = b; }
1611 ciMethod* profiled_method() const { return _profiled_method; }
1612 int profiled_bci() const { return _profiled_bci; }
1613 bool should_profile() const { return _should_profile; }
1614 bool need_null_check() const { return _need_null_check; }
1615 virtual bool is_patching() { return _info_for_patch != NULL; }
1616 virtual void emit_code(LIR_Assembler* masm);
1617 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1618 void print_instr(outputStream* out) const PRODUCT_RETURN;
1619 };
1620
1621 // LIR_OpFlattenedArrayCheck
1622 class LIR_OpFlattenedArrayCheck: public LIR_Op {
1623 friend class LIR_OpVisitState;
1624
1625 private:
1626 LIR_Opr _array;
1627 LIR_Opr _value;
1628 LIR_Opr _tmp;
1629 CodeStub* _stub;
1630 public:
1631 LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
1632 LIR_Opr array() const { return _array; }
1633 LIR_Opr value() const { return _value; }
1634 LIR_Opr tmp() const { return _tmp; }
1635 CodeStub* stub() const { return _stub; }
1636
1637 virtual void emit_code(LIR_Assembler* masm);
1638 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return this; }
1639 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1640 };
1641
1642 // LIR_OpNullFreeArrayCheck
1643 class LIR_OpNullFreeArrayCheck: public LIR_Op {
1644 friend class LIR_OpVisitState;
1645
1646 private:
1647 LIR_Opr _array;
1648 LIR_Opr _tmp;
1649 public:
1650 LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp);
1651 LIR_Opr array() const { return _array; }
1652 LIR_Opr tmp() const { return _tmp; }
1653
1654 virtual void emit_code(LIR_Assembler* masm);
1655 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return this; }
1656 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1657 };
1658
1659 class LIR_OpSubstitutabilityCheck: public LIR_Op {
1660 friend class LIR_OpVisitState;
1661
1662 private:
1663 LIR_Opr _left;
1664 LIR_Opr _right;
1665 LIR_Opr _equal_result;
1666 LIR_Opr _not_equal_result;
1667 LIR_Opr _tmp1;
1668 LIR_Opr _tmp2;
1669 ciKlass* _left_klass;
1670 ciKlass* _right_klass;
1671 LIR_Opr _left_klass_op;
1672 LIR_Opr _right_klass_op;
1673 CodeStub* _stub;
1674 public:
1675 LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1676 LIR_Opr tmp1, LIR_Opr tmp2,
1677 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1678 CodeEmitInfo* info, CodeStub* stub);
1679
1680 LIR_Opr left() const { return _left; }
1681 LIR_Opr right() const { return _right; }
1682 LIR_Opr equal_result() const { return _equal_result; }
1683 LIR_Opr not_equal_result() const { return _not_equal_result; }
1684 LIR_Opr tmp1() const { return _tmp1; }
1685 LIR_Opr tmp2() const { return _tmp2; }
1686 ciKlass* left_klass() const { return _left_klass; }
1687 ciKlass* right_klass() const { return _right_klass; }
1688 LIR_Opr left_klass_op() const { return _left_klass_op; }
1689 LIR_Opr right_klass_op() const { return _right_klass_op; }
1690 CodeStub* stub() const { return _stub; }
1691
1692 virtual void emit_code(LIR_Assembler* masm);
1693 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return this; }
1694 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1695 };
1696
1697 // LIR_Op2
1698 class LIR_Op2: public LIR_Op {
1699 friend class LIR_OpVisitState;
1700
1701 int _fpu_stack_size; // for sin/cos implementation on Intel
1702
1703 protected:
1704 LIR_Opr _opr1;
1705 LIR_Opr _opr2;
1706 BasicType _type;
1707 LIR_Opr _tmp1;
1708 LIR_Opr _tmp2;
1709 LIR_Opr _tmp3;
1710 LIR_Opr _tmp4;
1711 LIR_Opr _tmp5;
1712 LIR_Condition _condition;
1713
1714 void verify() const;
1715
1716 public:
1869
1870 //--------------------------------
1871 class LabelObj: public CompilationResourceObj {
1872 private:
1873 Label _label;
1874 public:
1875 LabelObj() {}
1876 Label* label() { return &_label; }
1877 };
1878
1879
1880 class LIR_OpLock: public LIR_Op {
1881 friend class LIR_OpVisitState;
1882
1883 private:
1884 LIR_Opr _hdr;
1885 LIR_Opr _obj;
1886 LIR_Opr _lock;
1887 LIR_Opr _scratch;
1888 CodeStub* _stub;
1889 CodeStub* _throw_imse_stub;
1890 public:
1891 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub=NULL)
1892 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1893 , _hdr(hdr)
1894 , _obj(obj)
1895 , _lock(lock)
1896 , _scratch(scratch)
1897 , _stub(stub)
1898 , _throw_imse_stub(throw_imse_stub) {}
1899
1900 LIR_Opr hdr_opr() const { return _hdr; }
1901 LIR_Opr obj_opr() const { return _obj; }
1902 LIR_Opr lock_opr() const { return _lock; }
1903 LIR_Opr scratch_opr() const { return _scratch; }
1904 CodeStub* stub() const { return _stub; }
1905 CodeStub* throw_imse_stub() const { return _throw_imse_stub; }
1906
1907 virtual void emit_code(LIR_Assembler* masm);
1908 virtual LIR_OpLock* as_OpLock() { return this; }
1909 void print_instr(outputStream* out) const PRODUCT_RETURN;
1910 };
1911
1912
1913 class LIR_OpDelay: public LIR_Op {
1914 friend class LIR_OpVisitState;
1915
1916 private:
1917 LIR_Op* _op;
1918
1919 public:
1920 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1921 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1922 _op(op) {
1923 assert(op->code() == lir_nop, "should be filling with nops");
1924 }
1925 virtual void emit_code(LIR_Assembler* masm);
2052 , _obj(obj)
2053 , _tmp(tmp)
2054 , _exact_klass(exact_klass)
2055 , _current_klass(current_klass)
2056 , _not_null(not_null)
2057 , _no_conflict(no_conflict) { }
2058
2059 LIR_Opr mdp() const { return _mdp; }
2060 LIR_Opr obj() const { return _obj; }
2061 LIR_Opr tmp() const { return _tmp; }
2062 ciKlass* exact_klass() const { return _exact_klass; }
2063 intptr_t current_klass() const { return _current_klass; }
2064 bool not_null() const { return _not_null; }
2065 bool no_conflict() const { return _no_conflict; }
2066
2067 virtual void emit_code(LIR_Assembler* masm);
2068 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
2069 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2070 };
2071
2072 // LIR_OpProfileInlineType
2073 class LIR_OpProfileInlineType : public LIR_Op {
2074 friend class LIR_OpVisitState;
2075
2076 private:
2077 LIR_Opr _mdp;
2078 LIR_Opr _obj;
2079 int _flag;
2080 LIR_Opr _tmp;
2081 bool _not_null; // true if we know statically that _obj cannot be null
2082
2083 public:
2084 // Destroys recv
2085 LIR_OpProfileInlineType(LIR_Opr mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null)
2086 : LIR_Op(lir_profile_inline_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
2087 , _mdp(mdp)
2088 , _obj(obj)
2089 , _flag(flag)
2090 , _tmp(tmp)
2091 , _not_null(not_null) { }
2092
2093 LIR_Opr mdp() const { return _mdp; }
2094 LIR_Opr obj() const { return _obj; }
2095 int flag() const { return _flag; }
2096 LIR_Opr tmp() const { return _tmp; }
2097 bool not_null() const { return _not_null; }
2098
2099 virtual void emit_code(LIR_Assembler* masm);
2100 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return this; }
2101 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2102 };
2103
2104 class LIR_InsertionBuffer;
2105
2106 //--------------------------------LIR_List---------------------------------------------------
2107 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
2108 // The LIR instructions are appended by the LIR_List class itself;
2109 //
2110 // Notes:
2111 // - all offsets are(should be) in bytes
2112 // - local positions are specified with an offset, with offset 0 being local 0
2113
2114 class LIR_List: public CompilationResourceObj {
2115 private:
2116 LIR_OpList _operations;
2117
2118 Compilation* _compilation;
2119 #ifndef PRODUCT
2120 BlockBegin* _block;
2121 #endif
2122 #ifdef ASSERT
2123 const char * _file;
2341 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2342
2343 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2344 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2345 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2346
2347 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2348 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2349
2350 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2351 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2352 }
2353
2354 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2355 LIR_OprList* arguments, CodeEmitInfo* info) {
2356 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2357 }
2358
2359 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2360 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2361 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub=NULL);
2362
2363 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2364
2365 void arraycopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) { append(new LIR_OpArrayCopy(src, src_pos, dst, dst_pos, length, tmp, expected_type, flags, info)); }
2366
2367 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2368
2369 void instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci);
2370 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci);
2371 void check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
2372 void check_null_free_array(LIR_Opr array, LIR_Opr tmp);
2373 void substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
2374 LIR_Opr tmp1, LIR_Opr tmp2,
2375 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
2376 CodeEmitInfo* info, CodeStub* stub);
2377
2378 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2379 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2380 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2381 ciMethod* profiled_method, int profiled_bci, bool is_null_free);
2382 // MethodData* profiling
2383 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2384 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2385 }
2386 void profile_type(LIR_Address* mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) {
2387 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2388 }
2389 void profile_inline_type(LIR_Address* mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null) {
2390 append(new LIR_OpProfileInlineType(LIR_OprFact::address(mdp), obj, flag, tmp, not_null));
2391 }
2392
2393 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2394 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2395 #ifdef ASSERT
2396 void lir_assert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) { append(new LIR_OpAssert(condition, opr1, opr2, msg, halt)); }
2397 #endif
2398 };
2399
2400 void print_LIR(BlockList* blocks);
2401
2402 class LIR_InsertionBuffer : public CompilationResourceObj {
2403 private:
2404 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2405
2406 // list of insertion points. index and count are stored alternately:
2407 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2408 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2409 intStack _index_and_count;
2410
2411 // the LIR_Ops to be inserted
|