8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_OPTO_TYPE_HPP
26 #define SHARE_OPTO_TYPE_HPP
27
28 #include "opto/adlcVMDeps.hpp"
29 #include "runtime/handles.hpp"
30
31 // Portions of code courtesy of Clifford Click
32
33 // Optimization - Graph Style
34
35
36 // This class defines a Type lattice. The lattice is used in the constant
37 // propagation algorithms, and for some type-checking of the iloc code.
38 // Basic types include RSD's (lower bound, upper bound, stride for integers),
39 // float & double precision constants, sets of data-labels and code-labels.
40 // The complete lattice is described below. Subtypes have no relationship to
41 // up or down in the lattice; that is entirely determined by the behavior of
42 // the MEET/JOIN functions.
43
44 class Dict;
45 class Type;
46 class TypeD;
47 class TypeF;
48 class TypeInteger;
49 class TypeInt;
50 class TypeLong;
51 class TypeNarrowPtr;
52 class TypeNarrowOop;
53 class TypeNarrowKlass;
54 class TypeAry;
55 class TypeTuple;
56 class TypeVect;
57 class TypeVectA;
58 class TypeVectS;
59 class TypeVectD;
60 class TypeVectX;
61 class TypeVectY;
62 class TypeVectZ;
63 class TypeVectMask;
64 class TypePtr;
65 class TypeRawPtr;
66 class TypeOopPtr;
67 class TypeInstPtr;
68 class TypeAryPtr;
69 class TypeKlassPtr;
70 class TypeInstKlassPtr;
71 class TypeAryKlassPtr;
72 class TypeMetadataPtr;
73
74 //------------------------------Type-------------------------------------------
75 // Basic Type object, represents a set of primitive Values.
83 enum TYPES {
84 Bad=0, // Type check
85 Control, // Control of code (not in lattice)
86 Top, // Top of the lattice
87 Int, // Integer range (lo-hi)
88 Long, // Long integer range (lo-hi)
89 Half, // Placeholder half of doubleword
90 NarrowOop, // Compressed oop pointer
91 NarrowKlass, // Compressed klass pointer
92
93 Tuple, // Method signature or object layout
94 Array, // Array types
95
96 VectorMask, // Vector predicate/mask type
97 VectorA, // (Scalable) Vector types for vector length agnostic
98 VectorS, // 32bit Vector types
99 VectorD, // 64bit Vector types
100 VectorX, // 128bit Vector types
101 VectorY, // 256bit Vector types
102 VectorZ, // 512bit Vector types
103
104 AnyPtr, // Any old raw, klass, inst, or array pointer
105 RawPtr, // Raw (non-oop) pointers
106 OopPtr, // Any and all Java heap entities
107 InstPtr, // Instance pointers (non-array objects)
108 AryPtr, // Array pointers
109 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
110
111 MetadataPtr, // Generic metadata
112 KlassPtr, // Klass pointers
113 InstKlassPtr,
114 AryKlassPtr,
115
116 Function, // Function signature
117 Abio, // Abstract I/O
118 Return_Address, // Subroutine return address
119 Memory, // Abstract store
120 FloatTop, // No float value
121 FloatCon, // Floating point constant
122 FloatBot, // Any float value
123 DoubleTop, // No double value
124 DoubleCon, // Double precision constant
125 DoubleBot, // Any double value
126 Bottom, // Bottom of lattice
127 lastype // Bogus ending type (not in lattice)
128 };
129
130 // Signal values for offsets from a base pointer
131 enum OFFSET_SIGNALS {
132 OffsetTop = -2000000000, // undefined offset
133 OffsetBot = -2000000001 // any possible offset
134 };
135
136 // Min and max WIDEN values.
137 enum WIDEN {
138 WidenMin = 0,
139 WidenMax = 3
140 };
141
142 private:
143 typedef struct {
144 TYPES dual_type;
145 BasicType basic_type;
146 const char* msg;
147 bool isa_oop;
148 uint ideal_reg;
149 relocInfo::relocType reloc;
150 } TypeInfo;
151
152 // Dictionary of types shared among compilations.
153 static Dict* _shared_type_dict;
154 static const TypeInfo _type_info[];
155
300 const TypeAry *is_ary() const; // Array, NOT array pointer
301 const TypeAry *isa_ary() const; // Returns NULL of not ary
302 const TypeVect *is_vect() const; // Vector
303 const TypeVect *isa_vect() const; // Returns NULL if not a Vector
304 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
305 const TypeVectMask *isa_vectmask() const; // Returns NULL if not a Vector Predicate/Mask
306 const TypePtr *is_ptr() const; // Asserts it is a ptr type
307 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type
308 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
309 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
310 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
311 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type
312 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
313 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type
314 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type
315 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
316 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr
317 const TypeInstPtr *is_instptr() const; // Instance
318 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr
319 const TypeAryPtr *is_aryptr() const; // Array oop
320
321 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type
322 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
323 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr
324 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
325 const TypeInstKlassPtr *isa_instklassptr() const; // Returns NULL if not IntKlassPtr
326 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
327 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns NULL if not AryKlassPtr
328 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
329
330 virtual bool is_finite() const; // Has a finite value
331 virtual bool is_nan() const; // Is not a number (NaN)
332
333 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
334 const TypePtr* make_ptr() const;
335
336 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
337 // Asserts if the underlying type is not an oopptr or narrowoop.
338 const TypeOopPtr* make_oopptr() const;
339
340 // Returns this compressed pointer or the equivalent compressed version
341 // of this pointer type.
342 const TypeNarrowOop* make_narrowoop() const;
343
344 // Returns this compressed klass pointer or the equivalent
345 // compressed version of this pointer type.
346 const TypeNarrowKlass* make_narrowklass() const;
347
348 // Special test for register pressure heuristic
349 bool is_floatingpoint() const; // True if Float or Double base type
350
351 // Do you have memory, directly or through a tuple?
352 bool has_memory( ) const;
707 const Type ** const _fields; // Array of field types
708
709 public:
710 virtual bool eq( const Type *t ) const;
711 virtual int hash() const; // Type specific hashing
712 virtual bool singleton(void) const; // TRUE if type is a singleton
713 virtual bool empty(void) const; // TRUE if type is vacuous
714
715 // Accessors:
716 uint cnt() const { return _cnt; }
717 const Type* field_at(uint i) const {
718 assert(i < _cnt, "oob");
719 return _fields[i];
720 }
721 void set_field_at(uint i, const Type* t) {
722 assert(i < _cnt, "oob");
723 _fields[i] = t;
724 }
725
726 static const TypeTuple *make( uint cnt, const Type **fields );
727 static const TypeTuple *make_range(ciSignature *sig);
728 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig);
729
730 // Subroutine call type with space allocated for argument types
731 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
732 static const Type **fields( uint arg_cnt );
733
734 virtual const Type *xmeet( const Type *t ) const;
735 virtual const Type *xdual() const; // Compute dual right now.
736 // Convenience common pre-built types.
737 static const TypeTuple *IFBOTH;
738 static const TypeTuple *IFFALSE;
739 static const TypeTuple *IFTRUE;
740 static const TypeTuple *IFNEITHER;
741 static const TypeTuple *LOOPBODY;
742 static const TypeTuple *MEMBAR;
743 static const TypeTuple *STORECONDITIONAL;
744 static const TypeTuple *START_I2C;
745 static const TypeTuple *INT_PAIR;
746 static const TypeTuple *LONG_PAIR;
747 static const TypeTuple *INT_CC_PAIR;
748 static const TypeTuple *LONG_CC_PAIR;
749 #ifndef PRODUCT
750 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
751 #endif
752 };
753
754 //------------------------------TypeAry----------------------------------------
755 // Class of Array Types
756 class TypeAry : public Type {
757 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array),
758 _elem(elem), _size(size), _stable(stable) {}
759 public:
760 virtual bool eq( const Type *t ) const;
761 virtual int hash() const; // Type specific hashing
762 virtual bool singleton(void) const; // TRUE if type is a singleton
763 virtual bool empty(void) const; // TRUE if type is vacuous
764
765 private:
766 const Type *_elem; // Element type of array
767 const TypeInt *_size; // Elements in array
768 const bool _stable; // Are elements @Stable?
769 friend class TypeAryPtr;
770
771 public:
772 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false);
773
774 virtual const Type *xmeet( const Type *t ) const;
775 virtual const Type *xdual() const; // Compute dual right now.
776 bool ary_must_be_exact() const; // true if arrays of such are never generic
777 virtual const TypeAry* remove_speculative() const;
778 virtual const Type* cleanup_speculative() const;
779 #ifdef ASSERT
780 // One type is interface, the other is oop
781 virtual bool interface_vs_oop(const Type *t) const;
782 #endif
783 #ifndef PRODUCT
784 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
785 #endif
786 };
787
788 //------------------------------TypeVect---------------------------------------
789 // Class of Vector Types
790 class TypeVect : public Type {
791 const Type* _elem; // Vector's element type
792 const uint _length; // Elements in vector (power of 2)
793
794 protected:
795 TypeVect(TYPES t, const Type* elem, uint length) : Type(t),
796 _elem(elem), _length(length) {}
797
798 public:
799 const Type* element_type() const { return _elem; }
800 BasicType element_basic_type() const { return _elem->array_element_basic_type(); }
801 uint length() const { return _length; }
802 uint length_in_bytes() const {
803 return _length * type2aelembytes(element_basic_type());
804 }
805
806 virtual bool eq(const Type *t) const;
807 virtual int hash() const; // Type specific hashing
871 class TypeVectMask : public TypeVect {
872 public:
873 friend class TypeVect;
874 TypeVectMask(const Type* elem, uint length) : TypeVect(VectorMask, elem, length) {}
875 virtual bool eq(const Type *t) const;
876 virtual const Type *xdual() const;
877 static const TypeVectMask* make(const BasicType elem_bt, uint length);
878 static const TypeVectMask* make(const Type* elem, uint length);
879 };
880
881 //------------------------------TypePtr----------------------------------------
882 // Class of machine Pointer Types: raw data, instances or arrays.
883 // If the _base enum is AnyPtr, then this refers to all of the above.
884 // Otherwise the _base will indicate which subset of pointers is affected,
885 // and the class will be inherited from.
886 class TypePtr : public Type {
887 friend class TypeNarrowPtr;
888 public:
889 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
890 protected:
891 TypePtr(TYPES t, PTR ptr, int offset,
892 const TypePtr* speculative = NULL,
893 int inline_depth = InlineDepthBottom) :
894 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
895 _ptr(ptr) {}
896 static const PTR ptr_meet[lastPTR][lastPTR];
897 static const PTR ptr_dual[lastPTR];
898 static const char * const ptr_msg[lastPTR];
899
900 enum {
901 InlineDepthBottom = INT_MAX,
902 InlineDepthTop = -InlineDepthBottom
903 };
904
905 // Extra type information profiling gave us. We propagate it the
906 // same way the rest of the type info is propagated. If we want to
907 // use it, then we have to emit a guard: this part of the type is
908 // not something we know but something we speculate about the type.
909 const TypePtr* _speculative;
910 // For speculative types, we record at what inlining depth the
911 // profiling point that provided the data is. We want to favor
928 int dual_inline_depth() const;
929 int meet_inline_depth(int depth) const;
930 #ifndef PRODUCT
931 void dump_inline_depth(outputStream *st) const;
932 #endif
933
934 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
935 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
936 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
937 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
938 // encountered so the right logic specific to klasses or oops can be executed.,
939 enum MeetResult {
940 QUICK,
941 UNLOADED,
942 SUBTYPE,
943 NOT_SUBTYPE,
944 LCA
945 };
946 static MeetResult
947 meet_instptr(PTR &ptr, ciKlass* this_klass, ciKlass* tinst_klass, bool this_xk, bool tinst_xk, PTR this_ptr,
948 PTR tinst_ptr, ciKlass*&res_klass, bool &res_xk);
949 static MeetResult
950 meet_aryptr(PTR& ptr, const Type*& elem, ciKlass* this_klass, ciKlass* tap_klass, bool this_xk, bool tap_xk, PTR this_ptr, PTR tap_ptr, ciKlass*& res_klass, bool& res_xk);
951
952 public:
953 const int _offset; // Offset into oop, with TOP & BOT
954 const PTR _ptr; // Pointer equivalence class
955
956 const int offset() const { return _offset; }
957 const PTR ptr() const { return _ptr; }
958
959 static const TypePtr *make(TYPES t, PTR ptr, int offset,
960 const TypePtr* speculative = NULL,
961 int inline_depth = InlineDepthBottom);
962
963 // Return a 'ptr' version of this type
964 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
965
966 virtual intptr_t get_con() const;
967
968 int xadd_offset( intptr_t offset ) const;
969 virtual const TypePtr* add_offset(intptr_t offset) const;
970 virtual const TypePtr* with_offset(intptr_t offset) const;
971 virtual bool eq(const Type *t) const;
972 virtual int hash() const; // Type specific hashing
973
974 virtual bool singleton(void) const; // TRUE if type is a singleton
975 virtual bool empty(void) const; // TRUE if type is vacuous
976 virtual const Type *xmeet( const Type *t ) const;
977 virtual const Type *xmeet_helper( const Type *t ) const;
978 int meet_offset( int offset ) const;
979 int dual_offset( ) const;
980 virtual const Type *xdual() const; // Compute dual right now.
981
982 // meet, dual and join over pointer equivalence sets
983 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
984 PTR dual_ptr() const { return ptr_dual[ptr()]; }
985
986 // This is textually confusing unless one recalls that
987 // join(t) == dual()->meet(t->dual())->dual().
988 PTR join_ptr( const PTR in_ptr ) const {
989 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
990 }
991
992 // Speculative type helper methods.
993 virtual const TypePtr* speculative() const { return _speculative; }
994 int inline_depth() const { return _inline_depth; }
995 virtual ciKlass* speculative_type() const;
996 virtual ciKlass* speculative_type_not_null() const;
997 virtual bool speculative_maybe_null() const;
998 virtual bool speculative_always_null() const;
999 virtual const TypePtr* remove_speculative() const;
1000 virtual const Type* cleanup_speculative() const;
1001 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1002 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1003 virtual const TypePtr* with_inline_depth(int depth) const;
1004
1005 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1006
1007 // Tests for relation to centerline of type lattice:
1008 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1009 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1010 // Convenience common pre-built types.
1011 static const TypePtr *NULL_PTR;
1012 static const TypePtr *NOTNULL;
1013 static const TypePtr *BOTTOM;
1014 #ifndef PRODUCT
1015 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1016 #endif
1017 };
1018
1019 //------------------------------TypeRawPtr-------------------------------------
1020 // Class of raw pointers, pointers to things other than Oops. Examples
1021 // include the stack pointer, top of heap, card-marking area, handles, etc.
1022 class TypeRawPtr : public TypePtr {
1023 protected:
1024 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){}
1025 public:
1026 virtual bool eq( const Type *t ) const;
1027 virtual int hash() const; // Type specific hashing
1028
1029 const address _bits; // Constant value, if applicable
1030
1031 static const TypeRawPtr *make( PTR ptr );
1032 static const TypeRawPtr *make( address bits );
1033
1034 // Return a 'ptr' version of this type
1035 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1036
1037 virtual intptr_t get_con() const;
1038
1039 virtual const TypePtr* add_offset(intptr_t offset) const;
1040 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return NULL;}
1041
1042 virtual const Type *xmeet( const Type *t ) const;
1043 virtual const Type *xdual() const; // Compute dual right now.
1044 // Convenience common pre-built types.
1045 static const TypeRawPtr *BOTTOM;
1046 static const TypeRawPtr *NOTNULL;
1047 #ifndef PRODUCT
1048 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1049 #endif
1050 };
1051
1052 //------------------------------TypeOopPtr-------------------------------------
1053 // Some kind of oop (Java pointer), either instance or array.
1054 class TypeOopPtr : public TypePtr {
1055 friend class TypeAry;
1056 friend class TypePtr;
1057 friend class TypeInstPtr;
1058 friend class TypeAryPtr;
1059 protected:
1060 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id,
1061 const TypePtr* speculative, int inline_depth);
1062 public:
1063 virtual bool eq( const Type *t ) const;
1064 virtual int hash() const; // Type specific hashing
1065 virtual bool singleton(void) const; // TRUE if type is a singleton
1066 enum {
1067 InstanceTop = -1, // undefined instance
1068 InstanceBot = 0 // any possible instance
1069 };
1070 protected:
1071
1072 // Oop is NULL, unless this is a constant oop.
1073 ciObject* _const_oop; // Constant oop
1074 // If _klass is NULL, then so is _sig. This is an unloaded klass.
1075 ciKlass* _klass; // Klass object
1076 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1077 bool _klass_is_exact;
1078 bool _is_ptr_to_narrowoop;
1079 bool _is_ptr_to_narrowklass;
1080 bool _is_ptr_to_boxed_value;
1081
1082 // If not InstanceTop or InstanceBot, indicates that this is
1083 // a particular instance of this type which is distinct.
1084 // This is the node index of the allocation node creating this instance.
1085 int _instance_id;
1086
1087 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact);
1088
1089 int dual_instance_id() const;
1090 int meet_instance_id(int uid) const;
1091
1092 // Do not allow interface-vs.-noninterface joins to collapse to top.
1093 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1094
1095 virtual ciKlass* exact_klass_helper() const { return NULL; }
1096 virtual ciKlass* klass() const { return _klass; }
1097
1098 public:
1099
1100 bool is_java_subtype_of(const TypeOopPtr* other) const {
1101 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1102 }
1103 virtual bool is_same_java_type_as(const TypeOopPtr* other) const { ShouldNotReachHere(); return false; }
1104 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1105 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1106 }
1107 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1108 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1109
1110
1111 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1112 // Respects UseUniqueSubclasses.
1113 // If the klass is final, the resulting type will be exact.
1114 static const TypeOopPtr* make_from_klass(ciKlass* klass) {
1115 return make_from_klass_common(klass, true, false);
1116 }
1117 // Same as before, but will produce an exact type, even if
1118 // the klass is not final, as long as it has exactly one implementation.
1119 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) {
1120 return make_from_klass_common(klass, true, true);
1121 }
1122 // Same as before, but does not respects UseUniqueSubclasses.
1123 // Use this only for creating array element types.
1124 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) {
1125 return make_from_klass_common(klass, false, false);
1126 }
1127 // Creates a singleton type given an object.
1128 // If the object cannot be rendered as a constant,
1129 // may return a non-singleton type.
1130 // If require_constant, produce a NULL if a singleton is not possible.
1131 static const TypeOopPtr* make_from_constant(ciObject* o,
1132 bool require_constant = false);
1133
1134 // Make a generic (unclassed) pointer to an oop.
1135 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id,
1136 const TypePtr* speculative = NULL,
1137 int inline_depth = InlineDepthBottom);
1138
1139 ciObject* const_oop() const { return _const_oop; }
1140 // Exact klass, possibly an interface or an array of interface
1141 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != NULL || maybe_null, ""); return k; }
1142 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1143
1144 virtual bool is_loaded() const { return klass()->is_loaded(); }
1145 bool klass_is_exact() const { return _klass_is_exact; }
1146
1147 // Returns true if this pointer points at memory which contains a
1148 // compressed oop references.
1149 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1150 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1151 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1152 bool is_known_instance() const { return _instance_id > 0; }
1153 int instance_id() const { return _instance_id; }
1154 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; }
1155
1156 virtual intptr_t get_con() const;
1157
1158 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1159
1160 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1161
1162 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1163
1164 // corresponding pointer to klass, for a given instance
1165 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1166
1167 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1168 virtual const TypePtr* add_offset(intptr_t offset) const;
1169
1170 // Speculative type helper methods.
1171 virtual const TypeOopPtr* remove_speculative() const;
1172 virtual const Type* cleanup_speculative() const;
1173 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1174 virtual const TypePtr* with_inline_depth(int depth) const;
1175
1176 virtual const TypePtr* with_instance_id(int instance_id) const;
1177
1178 virtual const Type *xdual() const; // Compute dual right now.
1179 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1180 virtual const Type *xmeet_helper(const Type *t) const;
1181
1182 // Convenience common pre-built type.
1183 static const TypeOopPtr *BOTTOM;
1184 #ifndef PRODUCT
1185 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1186 #endif
1187 };
1188
1189 //------------------------------TypeInstPtr------------------------------------
1190 // Class of Java object pointers, pointing either to non-array Java instances
1191 // or to a Klass* (including array klasses).
1192 class TypeInstPtr : public TypeOopPtr {
1193 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id,
1194 const TypePtr* speculative, int inline_depth);
1195 virtual bool eq( const Type *t ) const;
1196 virtual int hash() const; // Type specific hashing
1197
1198 ciKlass* exact_klass_helper() const;
1199
1200 public:
1201
1202 // Instance klass, ignoring any interface
1203 ciInstanceKlass* instance_klass() const {
1204 if (klass()->is_loaded() && klass()->is_interface()) {
1205 return Compile::current()->env()->Object_klass();
1206 }
1207 return klass()->as_instance_klass();
1208 }
1209
1210 bool is_same_java_type_as(const TypeOopPtr* other) const;
1211 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1212 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1213
1214 // Make a pointer to a constant oop.
1215 static const TypeInstPtr *make(ciObject* o) {
1216 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot);
1217 }
1218 // Make a pointer to a constant oop with offset.
1219 static const TypeInstPtr *make(ciObject* o, int offset) {
1220 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot);
1221 }
1222
1223 // Make a pointer to some value of type klass.
1224 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) {
1225 return make(ptr, klass, false, NULL, 0, InstanceBot);
1226 }
1227
1228 // Make a pointer to some non-polymorphic value of exactly type klass.
1229 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1230 return make(ptr, klass, true, NULL, 0, InstanceBot);
1231 }
1232
1233 // Make a pointer to some value of type klass with offset.
1234 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) {
1235 return make(ptr, klass, false, NULL, offset, InstanceBot);
1236 }
1237
1238 // Make a pointer to an oop.
1239 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset,
1240 int instance_id = InstanceBot,
1241 const TypePtr* speculative = NULL,
1242 int inline_depth = InlineDepthBottom);
1243
1244 /** Create constant type for a constant boxed value */
1245 const Type* get_const_boxed_value() const;
1246
1247 // If this is a java.lang.Class constant, return the type for it or NULL.
1248 // Pass to Type::get_const_type to turn it to a type, which will usually
1249 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1250 ciType* java_mirror_type() const;
1251
1252 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1253
1254 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1255
1256 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1257
1258 virtual const TypePtr* add_offset(intptr_t offset) const;
1259 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1260
1261 // Speculative type helper methods.
1262 virtual const TypeInstPtr* remove_speculative() const;
1263 virtual const TypePtr* with_inline_depth(int depth) const;
1264 virtual const TypePtr* with_instance_id(int instance_id) const;
1265
1266 // the core of the computation of the meet of 2 types
1267 virtual const Type *xmeet_helper(const Type *t) const;
1268 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const;
1269 virtual const Type *xdual() const; // Compute dual right now.
1270
1271 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1272
1273 bool is_interface() const { return is_loaded() && klass()->is_interface(); }
1274
1275 // Convenience common pre-built types.
1276 static const TypeInstPtr *NOTNULL;
1277 static const TypeInstPtr *BOTTOM;
1278 static const TypeInstPtr *MIRROR;
1279 static const TypeInstPtr *MARK;
1280 static const TypeInstPtr *KLASS;
1281 #ifndef PRODUCT
1282 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1283 #endif
1284 };
1285
1286 //------------------------------TypeAryPtr-------------------------------------
1287 // Class of Java array pointers
1288 class TypeAryPtr : public TypeOopPtr {
1289 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1290 int offset, int instance_id, bool is_autobox_cache,
1291 const TypePtr* speculative, int inline_depth)
1292 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative, inline_depth),
1293 _ary(ary),
1294 _is_autobox_cache(is_autobox_cache)
1295 {
1296 #ifdef ASSERT
1297 if (k != NULL) {
1298 // Verify that specified klass and TypeAryPtr::klass() follow the same rules.
1299 ciKlass* ck = compute_klass(true);
1300 if (k != ck) {
1301 this->dump(); tty->cr();
1302 tty->print(" k: ");
1303 k->print(); tty->cr();
1304 tty->print("ck: ");
1305 if (ck != NULL) ck->print();
1306 else tty->print("<NULL>");
1307 tty->cr();
1308 assert(false, "unexpected TypeAryPtr::_klass");
1309 }
1310 }
1311 #endif
1312 }
1313 virtual bool eq( const Type *t ) const;
1314 virtual int hash() const; // Type specific hashing
1315 const TypeAry *_ary; // Array we point into
1316 const bool _is_autobox_cache;
1317
1318 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const;
1319
1320 ciKlass* exact_klass_helper() const;
1321 ciKlass* klass() const;
1322
1323 public:
1324
1325 bool is_same_java_type_as(const TypeOopPtr* other) const;
1326 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1327 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1328
1329 // returns base element type, an instance klass (and not interface) for object arrays
1330 const Type* base_element_type(int& dims) const;
1331
1332 // Accessors
1333 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1334
1335 const TypeAry* ary() const { return _ary; }
1336 const Type* elem() const { return _ary->_elem; }
1337 const TypeInt* size() const { return _ary->_size; }
1338 bool is_stable() const { return _ary->_stable; }
1339
1340 bool is_autobox_cache() const { return _is_autobox_cache; }
1341
1342 static const TypeAryPtr *make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1343 int instance_id = InstanceBot,
1344 const TypePtr* speculative = NULL,
1345 int inline_depth = InlineDepthBottom);
1346 // Constant pointer to array
1347 static const TypeAryPtr *make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1348 int instance_id = InstanceBot,
1349 const TypePtr* speculative = NULL,
1350 int inline_depth = InlineDepthBottom, bool is_autobox_cache = false);
1351
1352 // Return a 'ptr' version of this type
1353 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1354
1355 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1356
1357 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1358
1359 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1360 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1361
1362 virtual bool empty(void) const; // TRUE if type is vacuous
1363 virtual const TypePtr *add_offset( intptr_t offset ) const;
1364 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1365 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1366
1367 // Speculative type helper methods.
1368 virtual const TypeAryPtr* remove_speculative() const;
1369 virtual const TypePtr* with_inline_depth(int depth) const;
1370 virtual const TypePtr* with_instance_id(int instance_id) const;
1371
1372 // the core of the computation of the meet of 2 types
1373 virtual const Type *xmeet_helper(const Type *t) const;
1374 virtual const Type *xdual() const; // Compute dual right now.
1375
1376 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1377 int stable_dimension() const;
1378
1379 const TypeAryPtr* cast_to_autobox_cache() const;
1380
1381 static jint max_array_length(BasicType etype) ;
1382 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1383
1384 // Convenience common pre-built types.
1385 static const TypeAryPtr *RANGE;
1386 static const TypeAryPtr *OOPS;
1387 static const TypeAryPtr *NARROWOOPS;
1388 static const TypeAryPtr *BYTES;
1389 static const TypeAryPtr *SHORTS;
1390 static const TypeAryPtr *CHARS;
1391 static const TypeAryPtr *INTS;
1392 static const TypeAryPtr *LONGS;
1393 static const TypeAryPtr *FLOATS;
1394 static const TypeAryPtr *DOUBLES;
1395 // selects one of the above:
1396 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1397 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type");
1398 return _array_body_type[elem];
1399 }
1400 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1401 // sharpen the type of an int which is used as an array size
1402 #ifdef ASSERT
1403 // One type is interface, the other is oop
1404 virtual bool interface_vs_oop(const Type *t) const;
1405 #endif
1406 #ifndef PRODUCT
1407 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1408 #endif
1409 };
1410
1411 //------------------------------TypeMetadataPtr-------------------------------------
1412 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1413 class TypeMetadataPtr : public TypePtr {
1414 protected:
1415 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset);
1416 // Do not allow interface-vs.-noninterface joins to collapse to top.
1417 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1418 public:
1419 virtual bool eq( const Type *t ) const;
1420 virtual int hash() const; // Type specific hashing
1421 virtual bool singleton(void) const; // TRUE if type is a singleton
1422
1423 private:
1424 ciMetadata* _metadata;
1425
1426 public:
1427 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset);
1428
1429 static const TypeMetadataPtr* make(ciMethod* m);
1430 static const TypeMetadataPtr* make(ciMethodData* m);
1431
1432 ciMetadata* metadata() const { return _metadata; }
1433
1434 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1435
1436 virtual const TypePtr *add_offset( intptr_t offset ) const;
1437
1438 virtual const Type *xmeet( const Type *t ) const;
1439 virtual const Type *xdual() const; // Compute dual right now.
1440
1441 virtual intptr_t get_con() const;
1442
1443 // Convenience common pre-built types.
1444 static const TypeMetadataPtr *BOTTOM;
1445
1446 #ifndef PRODUCT
1447 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1448 #endif
1449 };
1450
1451 //------------------------------TypeKlassPtr-----------------------------------
1452 // Class of Java Klass pointers
1453 class TypeKlassPtr : public TypePtr {
1454 friend class TypeInstKlassPtr;
1455 friend class TypeAryKlassPtr;
1456 protected:
1457 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, int offset);
1458
1459 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1460
1461 public:
1462 virtual bool eq( const Type *t ) const;
1463 virtual int hash() const;
1464 virtual bool singleton(void) const; // TRUE if type is a singleton
1465
1466 protected:
1467
1468 ciKlass* _klass;
1469
1470 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1471 virtual ciKlass* exact_klass_helper() const;
1472 virtual ciKlass* klass() const { return _klass; }
1473
1474 public:
1475
1476 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1477 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1478 }
1479 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1480 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1481 }
1482 virtual bool is_same_java_type_as(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1483 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1484 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1485
1486 // Exact klass, possibly an interface or an array of interface
1487 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != NULL || maybe_null, ""); return k; }
1488
1489 bool klass_is_exact() const { return _ptr == Constant; }
1490
1491 static const TypeKlassPtr* make(ciKlass* klass);
1492 static const TypeKlassPtr *make(PTR ptr, ciKlass* klass, int offset);
1493
1494 virtual bool is_loaded() const { return _klass->is_loaded(); }
1495
1496 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return NULL; }
1497
1498 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return NULL; }
1499
1500 // corresponding pointer to instance, for a given class
1501 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return NULL; }
1502
1503 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return NULL; }
1504 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return NULL; }
1505 virtual const Type *xdual() const { ShouldNotReachHere(); return NULL; }
1506
1507 virtual intptr_t get_con() const;
1508
1509 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return NULL; }
1510
1511 #ifndef PRODUCT
1512 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1513 #endif
1514 };
1515
1516 // Instance klass pointer, mirrors TypeInstPtr
1517 class TypeInstKlassPtr : public TypeKlassPtr {
1518
1519 TypeInstKlassPtr(PTR ptr, ciKlass* klass, int offset)
1520 : TypeKlassPtr(InstKlassPtr, ptr, klass, offset) {
1521 }
1522
1523 virtual bool must_be_exact() const;
1524
1525 public:
1526 // Instance klass ignoring any interface
1527 ciInstanceKlass* instance_klass() const {
1528 if (klass()->is_interface()) {
1529 return Compile::current()->env()->Object_klass();
1530 }
1531 return klass()->as_instance_klass();
1532 }
1533
1534 bool is_same_java_type_as(const TypeKlassPtr* other) const;
1535 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1536 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1537
1538 static const TypeInstKlassPtr *make(ciKlass* k) {
1539 return make(TypePtr::Constant, k, 0);
1540 }
1541 static const TypeInstKlassPtr *make(PTR ptr, ciKlass* k, int offset);
1542
1543 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1544
1545 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1546
1547 // corresponding pointer to instance, for a given class
1548 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1549 virtual int hash() const;
1550 virtual bool eq(const Type *t) const;
1551
1552 virtual const TypePtr *add_offset( intptr_t offset ) const;
1553 virtual const Type *xmeet( const Type *t ) const;
1554 virtual const Type *xdual() const;
1555 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1556
1557 bool is_interface() const { return klass()->is_interface(); }
1558
1559 // Convenience common pre-built types.
1560 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1561 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1562 };
1563
1564 // Array klass pointer, mirrors TypeAryPtr
1565 class TypeAryKlassPtr : public TypeKlassPtr {
1566 friend class TypeInstKlassPtr;
1567 const Type *_elem;
1568
1569 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, int offset)
1570 : TypeKlassPtr(AryKlassPtr, ptr, klass, offset), _elem(elem) {
1571 }
1572
1573 virtual ciKlass* exact_klass_helper() const;
1574 virtual ciKlass* klass() const;
1575
1576 virtual bool must_be_exact() const;
1577
1578 public:
1579
1580 // returns base element type, an instance klass (and not interface) for object arrays
1581 const Type* base_element_type(int& dims) const;
1582
1583 static const TypeAryKlassPtr *make(PTR ptr, ciKlass* k, int offset);
1584
1585 bool is_same_java_type_as(const TypeKlassPtr* other) const;
1586 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1587 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1588
1589 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1590
1591 static const TypeAryKlassPtr *make(PTR ptr, const Type *elem, ciKlass* k, int offset);
1592 static const TypeAryKlassPtr* make(ciKlass* klass);
1593
1594 const Type *elem() const { return _elem; }
1595
1596 virtual bool eq(const Type *t) const;
1597 virtual int hash() const; // Type specific hashing
1598
1599 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1600
1601 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1602
1603 // corresponding pointer to instance, for a given class
1604 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1605
1606 virtual const TypePtr *add_offset( intptr_t offset ) const;
1607 virtual const Type *xmeet( const Type *t ) const;
1608 virtual const Type *xdual() const; // Compute dual right now.
1609
1610 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1611
1612 virtual bool empty(void) const {
1613 return TypeKlassPtr::empty() || _elem->empty();
1614 }
1615
1616 #ifndef PRODUCT
1617 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1618 #endif
1619 };
1620
1621 class TypeNarrowPtr : public Type {
1622 protected:
1623 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1624
1625 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1626 _ptrtype(ptrtype) {
1627 assert(ptrtype->offset() == 0 ||
1628 ptrtype->offset() == OffsetBot ||
1629 ptrtype->offset() == OffsetTop, "no real offsets");
1630 }
1631
1632 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1633 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1634 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1635 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1729 }
1730
1731 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1732 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1733 }
1734
1735 public:
1736 static const TypeNarrowKlass *make( const TypePtr* type);
1737
1738 // static const TypeNarrowKlass *BOTTOM;
1739 static const TypeNarrowKlass *NULL_PTR;
1740
1741 #ifndef PRODUCT
1742 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1743 #endif
1744 };
1745
1746 //------------------------------TypeFunc---------------------------------------
1747 // Class of Array Types
1748 class TypeFunc : public Type {
1749 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {}
1750 virtual bool eq( const Type *t ) const;
1751 virtual int hash() const; // Type specific hashing
1752 virtual bool singleton(void) const; // TRUE if type is a singleton
1753 virtual bool empty(void) const; // TRUE if type is vacuous
1754
1755 const TypeTuple* const _domain; // Domain of inputs
1756 const TypeTuple* const _range; // Range of results
1757
1758 public:
1759 // Constants are shared among ADLC and VM
1760 enum { Control = AdlcVMDeps::Control,
1761 I_O = AdlcVMDeps::I_O,
1762 Memory = AdlcVMDeps::Memory,
1763 FramePtr = AdlcVMDeps::FramePtr,
1764 ReturnAdr = AdlcVMDeps::ReturnAdr,
1765 Parms = AdlcVMDeps::Parms
1766 };
1767
1768
1769 // Accessors:
1770 const TypeTuple* domain() const { return _domain; }
1771 const TypeTuple* range() const { return _range; }
1772
1773 static const TypeFunc *make(ciMethod* method);
1774 static const TypeFunc *make(ciSignature signature, const Type* extra);
1775 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
1776
1777 virtual const Type *xmeet( const Type *t ) const;
1778 virtual const Type *xdual() const; // Compute dual right now.
1779
1780 BasicType return_type() const;
1781
1782 #ifndef PRODUCT
1783 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1784 #endif
1785 // Convenience common pre-built types.
1786 };
1787
1788 //------------------------------accessors--------------------------------------
1789 inline bool Type::is_ptr_to_narrowoop() const {
1790 #ifdef _LP64
1791 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv());
1792 #else
1793 return false;
1794 #endif
1795 }
1796
1797 inline bool Type::is_ptr_to_narrowklass() const {
1798 #ifdef _LP64
1799 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv());
1800 #else
1801 return false;
1933 }
1934
1935 inline const TypeInstPtr *Type::isa_instptr() const {
1936 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL;
1937 }
1938
1939 inline const TypeInstPtr *Type::is_instptr() const {
1940 assert( _base == InstPtr, "Not an object pointer" );
1941 return (TypeInstPtr*)this;
1942 }
1943
1944 inline const TypeAryPtr *Type::isa_aryptr() const {
1945 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL;
1946 }
1947
1948 inline const TypeAryPtr *Type::is_aryptr() const {
1949 assert( _base == AryPtr, "Not an array pointer" );
1950 return (TypeAryPtr*)this;
1951 }
1952
1953 inline const TypeNarrowOop *Type::is_narrowoop() const {
1954 // OopPtr is the first and KlassPtr the last, with no non-oops between.
1955 assert(_base == NarrowOop, "Not a narrow oop" ) ;
1956 return (TypeNarrowOop*)this;
1957 }
1958
1959 inline const TypeNarrowOop *Type::isa_narrowoop() const {
1960 // OopPtr is the first and KlassPtr the last, with no non-oops between.
1961 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL;
1962 }
1963
1964 inline const TypeNarrowKlass *Type::is_narrowklass() const {
1965 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
1966 return (TypeNarrowKlass*)this;
1967 }
1968
1969 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
1970 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL;
1971 }
1972
2017 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2018 }
2019
2020 inline const TypeNarrowOop* Type::make_narrowoop() const {
2021 return (_base == NarrowOop) ? is_narrowoop() :
2022 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL);
2023 }
2024
2025 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2026 return (_base == NarrowKlass) ? is_narrowklass() :
2027 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL);
2028 }
2029
2030 inline bool Type::is_floatingpoint() const {
2031 if( (_base == FloatCon) || (_base == FloatBot) ||
2032 (_base == DoubleCon) || (_base == DoubleBot) )
2033 return true;
2034 return false;
2035 }
2036
2037
2038 // ===============================================================
2039 // Things that need to be 64-bits in the 64-bit build but
2040 // 32-bits in the 32-bit build. Done this way to get full
2041 // optimization AND strong typing.
2042 #ifdef _LP64
2043
2044 // For type queries and asserts
2045 #define is_intptr_t is_long
2046 #define isa_intptr_t isa_long
2047 #define find_intptr_t_type find_long_type
2048 #define find_intptr_t_con find_long_con
2049 #define TypeX TypeLong
2050 #define Type_X Type::Long
2051 #define TypeX_X TypeLong::LONG
2052 #define TypeX_ZERO TypeLong::ZERO
2053 // For 'ideal_reg' machine registers
2054 #define Op_RegX Op_RegL
2055 // For phase->intcon variants
2056 #define MakeConX longcon
2057 #define ConXNode ConLNode
2058 // For array index arithmetic
2059 #define MulXNode MulLNode
2060 #define AndXNode AndLNode
2061 #define OrXNode OrLNode
2062 #define CmpXNode CmpLNode
2063 #define SubXNode SubLNode
2064 #define LShiftXNode LShiftLNode
2065 // For object size computation:
2066 #define AddXNode AddLNode
2067 #define RShiftXNode RShiftLNode
2068 // For card marks and hashcodes
2069 #define URShiftXNode URShiftLNode
2070 // For shenandoahSupport
2071 #define LoadXNode LoadLNode
2072 #define StoreXNode StoreLNode
2073 // Opcodes
2074 #define Op_LShiftX Op_LShiftL
2075 #define Op_AndX Op_AndL
2076 #define Op_AddX Op_AddL
2077 #define Op_SubX Op_SubL
2078 #define Op_XorX Op_XorL
2079 #define Op_URShiftX Op_URShiftL
2080 #define Op_LoadX Op_LoadL
2081 // conversions
2082 #define ConvI2X(x) ConvI2L(x)
2083 #define ConvL2X(x) (x)
2084 #define ConvX2I(x) ConvL2I(x)
2085 #define ConvX2L(x) (x)
2086 #define ConvX2UL(x) (x)
2087
2088 #else
2089
2090 // For type queries and asserts
2091 #define is_intptr_t is_int
2092 #define isa_intptr_t isa_int
2093 #define find_intptr_t_type find_int_type
2094 #define find_intptr_t_con find_int_con
2095 #define TypeX TypeInt
2096 #define Type_X Type::Int
2097 #define TypeX_X TypeInt::INT
2098 #define TypeX_ZERO TypeInt::ZERO
2099 // For 'ideal_reg' machine registers
2100 #define Op_RegX Op_RegI
2101 // For phase->intcon variants
2102 #define MakeConX intcon
2103 #define ConXNode ConINode
2104 // For array index arithmetic
2105 #define MulXNode MulINode
2106 #define AndXNode AndINode
2107 #define OrXNode OrINode
2108 #define CmpXNode CmpINode
2109 #define SubXNode SubINode
2110 #define LShiftXNode LShiftINode
2111 // For object size computation:
2112 #define AddXNode AddINode
2113 #define RShiftXNode RShiftINode
2114 // For card marks and hashcodes
2115 #define URShiftXNode URShiftINode
2116 // For shenandoahSupport
2117 #define LoadXNode LoadINode
2118 #define StoreXNode StoreINode
2119 // Opcodes
2120 #define Op_LShiftX Op_LShiftI
2121 #define Op_AndX Op_AndI
2122 #define Op_AddX Op_AddI
2123 #define Op_SubX Op_SubI
2124 #define Op_XorX Op_XorI
2125 #define Op_URShiftX Op_URShiftI
2126 #define Op_LoadX Op_LoadI
2127 // conversions
2128 #define ConvI2X(x) (x)
2129 #define ConvL2X(x) ConvL2I(x)
2130 #define ConvX2I(x) (x)
2131 #define ConvX2L(x) ConvI2L(x)
2132 #define ConvX2UL(x) ConvI2UL(x)
2133
2134 #endif
2135
2136 #endif // SHARE_OPTO_TYPE_HPP
|
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_OPTO_TYPE_HPP
26 #define SHARE_OPTO_TYPE_HPP
27
28 #include "ci/ciInlineKlass.hpp"
29 #include "opto/adlcVMDeps.hpp"
30 #include "runtime/handles.hpp"
31 #include "runtime/sharedRuntime.hpp"
32
33 // Portions of code courtesy of Clifford Click
34
35 // Optimization - Graph Style
36
37
38 // This class defines a Type lattice. The lattice is used in the constant
39 // propagation algorithms, and for some type-checking of the iloc code.
40 // Basic types include RSD's (lower bound, upper bound, stride for integers),
41 // float & double precision constants, sets of data-labels and code-labels.
42 // The complete lattice is described below. Subtypes have no relationship to
43 // up or down in the lattice; that is entirely determined by the behavior of
44 // the MEET/JOIN functions.
45
46 class Dict;
47 class Type;
48 class TypeD;
49 class TypeF;
50 class TypeInteger;
51 class TypeInt;
52 class TypeLong;
53 class TypeNarrowPtr;
54 class TypeNarrowOop;
55 class TypeNarrowKlass;
56 class TypeAry;
57 class TypeTuple;
58 class TypeInlineType;
59 class TypeVect;
60 class TypeVectA;
61 class TypeVectS;
62 class TypeVectD;
63 class TypeVectX;
64 class TypeVectY;
65 class TypeVectZ;
66 class TypeVectMask;
67 class TypePtr;
68 class TypeRawPtr;
69 class TypeOopPtr;
70 class TypeInstPtr;
71 class TypeAryPtr;
72 class TypeKlassPtr;
73 class TypeInstKlassPtr;
74 class TypeAryKlassPtr;
75 class TypeMetadataPtr;
76
77 //------------------------------Type-------------------------------------------
78 // Basic Type object, represents a set of primitive Values.
86 enum TYPES {
87 Bad=0, // Type check
88 Control, // Control of code (not in lattice)
89 Top, // Top of the lattice
90 Int, // Integer range (lo-hi)
91 Long, // Long integer range (lo-hi)
92 Half, // Placeholder half of doubleword
93 NarrowOop, // Compressed oop pointer
94 NarrowKlass, // Compressed klass pointer
95
96 Tuple, // Method signature or object layout
97 Array, // Array types
98
99 VectorMask, // Vector predicate/mask type
100 VectorA, // (Scalable) Vector types for vector length agnostic
101 VectorS, // 32bit Vector types
102 VectorD, // 64bit Vector types
103 VectorX, // 128bit Vector types
104 VectorY, // 256bit Vector types
105 VectorZ, // 512bit Vector types
106 InlineType, // Inline type
107
108 AnyPtr, // Any old raw, klass, inst, or array pointer
109 RawPtr, // Raw (non-oop) pointers
110 OopPtr, // Any and all Java heap entities
111 InstPtr, // Instance pointers (non-array objects)
112 AryPtr, // Array pointers
113 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
114
115 MetadataPtr, // Generic metadata
116 KlassPtr, // Klass pointers
117 InstKlassPtr,
118 AryKlassPtr,
119
120 Function, // Function signature
121 Abio, // Abstract I/O
122 Return_Address, // Subroutine return address
123 Memory, // Abstract store
124 FloatTop, // No float value
125 FloatCon, // Floating point constant
126 FloatBot, // Any float value
127 DoubleTop, // No double value
128 DoubleCon, // Double precision constant
129 DoubleBot, // Any double value
130 Bottom, // Bottom of lattice
131 lastype // Bogus ending type (not in lattice)
132 };
133
134 // Signal values for offsets from a base pointer
135 enum OFFSET_SIGNALS {
136 OffsetTop = -2000000000, // undefined offset
137 OffsetBot = -2000000001 // any possible offset
138 };
139
140 class Offset {
141 private:
142 int _offset;
143
144 public:
145 explicit Offset(int offset) : _offset(offset) {}
146
147 const Offset meet(const Offset other) const;
148 const Offset dual() const;
149 const Offset add(intptr_t offset) const;
150 bool operator==(const Offset& other) const {
151 return _offset == other._offset;
152 }
153 bool operator!=(const Offset& other) const {
154 return _offset != other._offset;
155 }
156 int get() const { return _offset; }
157
158 void dump2(outputStream *st) const;
159
160 static const Offset top;
161 static const Offset bottom;
162 };
163
164 // Min and max WIDEN values.
165 enum WIDEN {
166 WidenMin = 0,
167 WidenMax = 3
168 };
169
170 private:
171 typedef struct {
172 TYPES dual_type;
173 BasicType basic_type;
174 const char* msg;
175 bool isa_oop;
176 uint ideal_reg;
177 relocInfo::relocType reloc;
178 } TypeInfo;
179
180 // Dictionary of types shared among compilations.
181 static Dict* _shared_type_dict;
182 static const TypeInfo _type_info[];
183
328 const TypeAry *is_ary() const; // Array, NOT array pointer
329 const TypeAry *isa_ary() const; // Returns NULL of not ary
330 const TypeVect *is_vect() const; // Vector
331 const TypeVect *isa_vect() const; // Returns NULL if not a Vector
332 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
333 const TypeVectMask *isa_vectmask() const; // Returns NULL if not a Vector Predicate/Mask
334 const TypePtr *is_ptr() const; // Asserts it is a ptr type
335 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type
336 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
337 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
338 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
339 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type
340 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
341 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type
342 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type
343 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
344 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr
345 const TypeInstPtr *is_instptr() const; // Instance
346 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr
347 const TypeAryPtr *is_aryptr() const; // Array oop
348 const TypeInlineType* isa_inlinetype() const; // Returns NULL if not Inline Type
349 const TypeInlineType* is_inlinetype() const; // Inline Type
350
351 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type
352 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
353 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr
354 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
355 const TypeInstKlassPtr *isa_instklassptr() const; // Returns NULL if not IntKlassPtr
356 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
357 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns NULL if not AryKlassPtr
358 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
359
360 virtual bool is_finite() const; // Has a finite value
361 virtual bool is_nan() const; // Is not a number (NaN)
362
363 bool is_inlinetypeptr() const;
364 virtual ciInlineKlass* inline_klass() const;
365
366 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
367 const TypePtr* make_ptr() const;
368
369 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
370 // Asserts if the underlying type is not an oopptr or narrowoop.
371 const TypeOopPtr* make_oopptr() const;
372
373 // Returns this compressed pointer or the equivalent compressed version
374 // of this pointer type.
375 const TypeNarrowOop* make_narrowoop() const;
376
377 // Returns this compressed klass pointer or the equivalent
378 // compressed version of this pointer type.
379 const TypeNarrowKlass* make_narrowklass() const;
380
381 // Special test for register pressure heuristic
382 bool is_floatingpoint() const; // True if Float or Double base type
383
384 // Do you have memory, directly or through a tuple?
385 bool has_memory( ) const;
740 const Type ** const _fields; // Array of field types
741
742 public:
743 virtual bool eq( const Type *t ) const;
744 virtual int hash() const; // Type specific hashing
745 virtual bool singleton(void) const; // TRUE if type is a singleton
746 virtual bool empty(void) const; // TRUE if type is vacuous
747
748 // Accessors:
749 uint cnt() const { return _cnt; }
750 const Type* field_at(uint i) const {
751 assert(i < _cnt, "oob");
752 return _fields[i];
753 }
754 void set_field_at(uint i, const Type* t) {
755 assert(i < _cnt, "oob");
756 _fields[i] = t;
757 }
758
759 static const TypeTuple *make( uint cnt, const Type **fields );
760 static const TypeTuple *make_range(ciSignature* sig, bool ret_vt_fields = false);
761 static const TypeTuple *make_domain(ciMethod* method, bool vt_fields_as_args = false);
762
763 // Subroutine call type with space allocated for argument types
764 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
765 static const Type **fields( uint arg_cnt );
766
767 virtual const Type *xmeet( const Type *t ) const;
768 virtual const Type *xdual() const; // Compute dual right now.
769 // Convenience common pre-built types.
770 static const TypeTuple *IFBOTH;
771 static const TypeTuple *IFFALSE;
772 static const TypeTuple *IFTRUE;
773 static const TypeTuple *IFNEITHER;
774 static const TypeTuple *LOOPBODY;
775 static const TypeTuple *MEMBAR;
776 static const TypeTuple *STORECONDITIONAL;
777 static const TypeTuple *START_I2C;
778 static const TypeTuple *INT_PAIR;
779 static const TypeTuple *LONG_PAIR;
780 static const TypeTuple *INT_CC_PAIR;
781 static const TypeTuple *LONG_CC_PAIR;
782 #ifndef PRODUCT
783 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
784 #endif
785 };
786
787 //------------------------------TypeAry----------------------------------------
788 // Class of Array Types
789 class TypeAry : public Type {
790 TypeAry(const Type* elem, const TypeInt* size, bool stable, bool not_flat, bool not_null_free) : Type(Array),
791 _elem(elem), _size(size), _stable(stable), _not_flat(not_flat), _not_null_free(not_null_free) {}
792 public:
793 virtual bool eq( const Type *t ) const;
794 virtual int hash() const; // Type specific hashing
795 virtual bool singleton(void) const; // TRUE if type is a singleton
796 virtual bool empty(void) const; // TRUE if type is vacuous
797
798 private:
799 const Type *_elem; // Element type of array
800 const TypeInt *_size; // Elements in array
801 const bool _stable; // Are elements @Stable?
802
803 // Inline type array properties
804 const bool _not_flat; // Array is never flattened
805 const bool _not_null_free; // Array is never null-free
806
807 friend class TypeAryPtr;
808
809 public:
810 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false,
811 bool not_flat = false, bool not_null_free = false);
812
813 virtual const Type *xmeet( const Type *t ) const;
814 virtual const Type *xdual() const; // Compute dual right now.
815 bool ary_must_be_exact() const; // true if arrays of such are never generic
816 virtual const TypeAry* remove_speculative() const;
817 virtual const Type* cleanup_speculative() const;
818
819 #ifdef ASSERT
820 // One type is interface, the other is oop
821 virtual bool interface_vs_oop(const Type *t) const;
822 #endif
823 #ifndef PRODUCT
824 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
825 #endif
826 };
827
828
829 //------------------------------TypeValue---------------------------------------
830 // Class of Inline Type Types
831 class TypeInlineType : public Type {
832 private:
833 ciInlineKlass* _vk;
834 bool _larval;
835
836 protected:
837 TypeInlineType(ciInlineKlass* vk, bool larval)
838 : Type(InlineType),
839 _vk(vk), _larval(larval) {
840 }
841
842 public:
843 static const TypeInlineType* make(ciInlineKlass* vk, bool larval = false);
844 virtual ciInlineKlass* inline_klass() const { return _vk; }
845 bool larval() const { return _larval; }
846
847 virtual bool eq(const Type* t) const;
848 virtual int hash() const; // Type specific hashing
849 virtual bool singleton(void) const; // TRUE if type is a singleton
850 virtual bool empty(void) const; // TRUE if type is vacuous
851
852 virtual const Type* xmeet(const Type* t) const;
853 virtual const Type* xdual() const; // Compute dual right now.
854
855 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return false; }
856 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return false; }
857
858 virtual bool maybe_null() const { return false; }
859
860 static const TypeInlineType* BOTTOM;
861
862 #ifndef PRODUCT
863 virtual void dump2(Dict &d, uint, outputStream* st) const; // Specialized per-Type dumping
864 #endif
865 };
866
867 //------------------------------TypeVect---------------------------------------
868 // Class of Vector Types
869 class TypeVect : public Type {
870 const Type* _elem; // Vector's element type
871 const uint _length; // Elements in vector (power of 2)
872
873 protected:
874 TypeVect(TYPES t, const Type* elem, uint length) : Type(t),
875 _elem(elem), _length(length) {}
876
877 public:
878 const Type* element_type() const { return _elem; }
879 BasicType element_basic_type() const { return _elem->array_element_basic_type(); }
880 uint length() const { return _length; }
881 uint length_in_bytes() const {
882 return _length * type2aelembytes(element_basic_type());
883 }
884
885 virtual bool eq(const Type *t) const;
886 virtual int hash() const; // Type specific hashing
950 class TypeVectMask : public TypeVect {
951 public:
952 friend class TypeVect;
953 TypeVectMask(const Type* elem, uint length) : TypeVect(VectorMask, elem, length) {}
954 virtual bool eq(const Type *t) const;
955 virtual const Type *xdual() const;
956 static const TypeVectMask* make(const BasicType elem_bt, uint length);
957 static const TypeVectMask* make(const Type* elem, uint length);
958 };
959
960 //------------------------------TypePtr----------------------------------------
961 // Class of machine Pointer Types: raw data, instances or arrays.
962 // If the _base enum is AnyPtr, then this refers to all of the above.
963 // Otherwise the _base will indicate which subset of pointers is affected,
964 // and the class will be inherited from.
965 class TypePtr : public Type {
966 friend class TypeNarrowPtr;
967 public:
968 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
969 protected:
970 TypePtr(TYPES t, PTR ptr, Offset offset,
971 const TypePtr* speculative = NULL,
972 int inline_depth = InlineDepthBottom) :
973 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
974 _ptr(ptr) {}
975 static const PTR ptr_meet[lastPTR][lastPTR];
976 static const PTR ptr_dual[lastPTR];
977 static const char * const ptr_msg[lastPTR];
978
979 enum {
980 InlineDepthBottom = INT_MAX,
981 InlineDepthTop = -InlineDepthBottom
982 };
983
984 // Extra type information profiling gave us. We propagate it the
985 // same way the rest of the type info is propagated. If we want to
986 // use it, then we have to emit a guard: this part of the type is
987 // not something we know but something we speculate about the type.
988 const TypePtr* _speculative;
989 // For speculative types, we record at what inlining depth the
990 // profiling point that provided the data is. We want to favor
1007 int dual_inline_depth() const;
1008 int meet_inline_depth(int depth) const;
1009 #ifndef PRODUCT
1010 void dump_inline_depth(outputStream *st) const;
1011 #endif
1012
1013 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
1014 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
1015 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
1016 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
1017 // encountered so the right logic specific to klasses or oops can be executed.,
1018 enum MeetResult {
1019 QUICK,
1020 UNLOADED,
1021 SUBTYPE,
1022 NOT_SUBTYPE,
1023 LCA
1024 };
1025 static MeetResult
1026 meet_instptr(PTR &ptr, ciKlass* this_klass, ciKlass* tinst_klass, bool this_xk, bool tinst_xk, PTR this_ptr,
1027 PTR tinst_ptr, bool this_flatten_array, bool tinst_flatten_array, ciKlass*&res_klass, bool &res_xk,
1028 bool& res_flatten_array);
1029
1030 static MeetResult meet_aryptr(PTR &ptr, const Type* this_elem, const Type* tap_elem, ciKlass* this_klass, ciKlass* tap_klass,
1031 bool this_xk, bool tap_xk, PTR this_ptr, PTR tap_ptr, bool this_not_flat, bool tap_not_flat,
1032 bool this_not_null_free, bool tap_not_null_free, const Type*& res_elem, ciKlass*&res_klass,
1033 bool &res_xk, bool &res_not_flat, bool &res_not_null_free);
1034
1035 public:
1036 const Offset _offset; // Offset into oop, with TOP & BOT
1037 const PTR _ptr; // Pointer equivalence class
1038
1039 const int offset() const { return _offset.get(); }
1040 const PTR ptr() const { return _ptr; }
1041
1042 static const TypePtr* make(TYPES t, PTR ptr, Offset offset,
1043 const TypePtr* speculative = NULL,
1044 int inline_depth = InlineDepthBottom);
1045
1046 // Return a 'ptr' version of this type
1047 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
1048
1049 virtual intptr_t get_con() const;
1050
1051 Type::Offset xadd_offset(intptr_t offset) const;
1052 virtual const TypePtr* add_offset(intptr_t offset) const;
1053 virtual const TypePtr* with_offset(intptr_t offset) const;
1054 virtual const int flattened_offset() const { return offset(); }
1055 virtual bool eq(const Type *t) const;
1056 virtual int hash() const; // Type specific hashing
1057
1058 virtual bool singleton(void) const; // TRUE if type is a singleton
1059 virtual bool empty(void) const; // TRUE if type is vacuous
1060 virtual const Type *xmeet( const Type *t ) const;
1061 virtual const Type *xmeet_helper( const Type *t ) const;
1062 Offset meet_offset(int offset) const;
1063 Offset dual_offset() const;
1064 virtual const Type *xdual() const; // Compute dual right now.
1065
1066 // meet, dual and join over pointer equivalence sets
1067 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
1068 PTR dual_ptr() const { return ptr_dual[ptr()]; }
1069
1070 // This is textually confusing unless one recalls that
1071 // join(t) == dual()->meet(t->dual())->dual().
1072 PTR join_ptr( const PTR in_ptr ) const {
1073 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
1074 }
1075
1076 // Speculative type helper methods.
1077 virtual const TypePtr* speculative() const { return _speculative; }
1078 int inline_depth() const { return _inline_depth; }
1079 virtual ciKlass* speculative_type() const;
1080 virtual ciKlass* speculative_type_not_null() const;
1081 virtual bool speculative_maybe_null() const;
1082 virtual bool speculative_always_null() const;
1083 virtual const TypePtr* remove_speculative() const;
1084 virtual const Type* cleanup_speculative() const;
1085 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1086 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1087 virtual const TypePtr* with_inline_depth(int depth) const;
1088
1089 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1090
1091 virtual bool can_be_inline_type() const { return false; }
1092 virtual bool flatten_array() const { return false; }
1093 virtual bool not_flatten_array() const { return false; }
1094 virtual bool is_flat() const { return false; }
1095 virtual bool is_not_flat() const { return false; }
1096 virtual bool is_null_free() const { return false; }
1097 virtual bool is_not_null_free() const { return false; }
1098
1099 // Tests for relation to centerline of type lattice:
1100 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1101 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1102 // Convenience common pre-built types.
1103 static const TypePtr *NULL_PTR;
1104 static const TypePtr *NOTNULL;
1105 static const TypePtr *BOTTOM;
1106 #ifndef PRODUCT
1107 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1108 #endif
1109 };
1110
1111 //------------------------------TypeRawPtr-------------------------------------
1112 // Class of raw pointers, pointers to things other than Oops. Examples
1113 // include the stack pointer, top of heap, card-marking area, handles, etc.
1114 class TypeRawPtr : public TypePtr {
1115 protected:
1116 TypeRawPtr(PTR ptr, address bits) : TypePtr(RawPtr,ptr,Offset(0)), _bits(bits){}
1117 public:
1118 virtual bool eq( const Type *t ) const;
1119 virtual int hash() const; // Type specific hashing
1120
1121 const address _bits; // Constant value, if applicable
1122
1123 static const TypeRawPtr *make( PTR ptr );
1124 static const TypeRawPtr *make( address bits );
1125
1126 // Return a 'ptr' version of this type
1127 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1128
1129 virtual intptr_t get_con() const;
1130
1131 virtual const TypePtr* add_offset(intptr_t offset) const;
1132 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return NULL;}
1133
1134 virtual const Type *xmeet( const Type *t ) const;
1135 virtual const Type *xdual() const; // Compute dual right now.
1136 // Convenience common pre-built types.
1137 static const TypeRawPtr *BOTTOM;
1138 static const TypeRawPtr *NOTNULL;
1139 #ifndef PRODUCT
1140 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1141 #endif
1142 };
1143
1144 //------------------------------TypeOopPtr-------------------------------------
1145 // Some kind of oop (Java pointer), either instance or array.
1146 class TypeOopPtr : public TypePtr {
1147 friend class TypeAry;
1148 friend class TypePtr;
1149 friend class TypeInstPtr;
1150 friend class TypeAryPtr;
1151 protected:
1152 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, Offset offset, Offset field_offset,
1153 int instance_id, const TypePtr* speculative, int inline_depth);
1154 public:
1155 virtual bool eq( const Type *t ) const;
1156 virtual int hash() const; // Type specific hashing
1157 virtual bool singleton(void) const; // TRUE if type is a singleton
1158 enum {
1159 InstanceTop = -1, // undefined instance
1160 InstanceBot = 0 // any possible instance
1161 };
1162 protected:
1163
1164 // Oop is NULL, unless this is a constant oop.
1165 ciObject* _const_oop; // Constant oop
1166 // If _klass is NULL, then so is _sig. This is an unloaded klass.
1167 ciKlass* _klass; // Klass object
1168 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1169 bool _klass_is_exact;
1170 bool _is_ptr_to_narrowoop;
1171 bool _is_ptr_to_narrowklass;
1172 bool _is_ptr_to_boxed_value;
1173
1174 // If not InstanceTop or InstanceBot, indicates that this is
1175 // a particular instance of this type which is distinct.
1176 // This is the node index of the allocation node creating this instance.
1177 int _instance_id;
1178
1179 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact);
1180
1181 int dual_instance_id() const;
1182 int meet_instance_id(int uid) const;
1183
1184 // Do not allow interface-vs.-noninterface joins to collapse to top.
1185 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1186
1187 virtual ciKlass* exact_klass_helper() const { return NULL; }
1188 virtual ciKlass* klass() const { return _klass; }
1189
1190 public:
1191
1192 bool is_java_subtype_of(const TypeOopPtr* other) const {
1193 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1194 }
1195 virtual bool is_same_java_type_as(const TypeOopPtr* other) const { ShouldNotReachHere(); return false; }
1196 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1197 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1198 }
1199 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1200 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1201
1202
1203 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1204 // Respects UseUniqueSubclasses.
1205 // If the klass is final, the resulting type will be exact.
1206 static const TypeOopPtr* make_from_klass(ciKlass* klass) {
1207 return make_from_klass_common(klass, true, false);
1208 }
1209 // Same as before, but will produce an exact type, even if
1210 // the klass is not final, as long as it has exactly one implementation.
1211 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) {
1212 return make_from_klass_common(klass, true, true);
1213 }
1214 // Same as before, but does not respects UseUniqueSubclasses.
1215 // Use this only for creating array element types.
1216 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) {
1217 return make_from_klass_common(klass, false, false);
1218 }
1219 // Creates a singleton type given an object.
1220 // If the object cannot be rendered as a constant,
1221 // may return a non-singleton type.
1222 // If require_constant, produce a NULL if a singleton is not possible.
1223 static const TypeOopPtr* make_from_constant(ciObject* o,
1224 bool require_constant = false);
1225
1226 // Make a generic (unclassed) pointer to an oop.
1227 static const TypeOopPtr* make(PTR ptr, Offset offset, int instance_id,
1228 const TypePtr* speculative = NULL,
1229 int inline_depth = InlineDepthBottom);
1230
1231 ciObject* const_oop() const { return _const_oop; }
1232 // Exact klass, possibly an interface or an array of interface
1233 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != NULL || maybe_null, ""); return k; }
1234 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1235
1236 virtual bool is_loaded() const { return klass()->is_loaded(); }
1237 bool klass_is_exact() const { return _klass_is_exact; }
1238
1239 // Returns true if this pointer points at memory which contains a
1240 // compressed oop references.
1241 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1242 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1243 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1244 bool is_known_instance() const { return _instance_id > 0; }
1245 int instance_id() const { return _instance_id; }
1246 bool is_known_instance_field() const { return is_known_instance() && _offset.get() >= 0; }
1247
1248 virtual bool can_be_inline_type() const { return (_klass == NULL || _klass->can_be_inline_klass(_klass_is_exact)); }
1249 bool can_be_inline_array() const { return (_klass == NULL || _klass->can_be_inline_array_klass()); }
1250
1251 virtual intptr_t get_con() const;
1252
1253 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1254
1255 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1256
1257 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1258
1259 // corresponding pointer to klass, for a given instance
1260 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1261
1262 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1263 virtual const TypePtr* add_offset(intptr_t offset) const;
1264
1265 // Speculative type helper methods.
1266 virtual const TypeOopPtr* remove_speculative() const;
1267 virtual const Type* cleanup_speculative() const;
1268 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1269 virtual const TypePtr* with_inline_depth(int depth) const;
1270
1271 virtual const TypePtr* with_instance_id(int instance_id) const;
1272
1273 virtual const Type *xdual() const; // Compute dual right now.
1274 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1275 virtual const Type *xmeet_helper(const Type *t) const;
1276
1277 // Convenience common pre-built type.
1278 static const TypeOopPtr *BOTTOM;
1279 #ifndef PRODUCT
1280 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1281 #endif
1282 };
1283
1284 //------------------------------TypeInstPtr------------------------------------
1285 // Class of Java object pointers, pointing either to non-array Java instances
1286 // or to a Klass* (including array klasses).
1287 class TypeInstPtr : public TypeOopPtr {
1288 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, Offset offset,
1289 bool flatten_array, int instance_id, const TypePtr* speculative,
1290 int inline_depth);
1291 virtual bool eq( const Type *t ) const;
1292 virtual int hash() const; // Type specific hashing
1293
1294 bool _flatten_array; // Type is flat in arrays
1295 ciKlass* exact_klass_helper() const;
1296
1297 public:
1298
1299 // Instance klass, ignoring any interface
1300 ciInstanceKlass* instance_klass() const {
1301 if (klass()->is_loaded() && klass()->is_interface()) {
1302 return Compile::current()->env()->Object_klass();
1303 }
1304 return klass()->as_instance_klass();
1305 }
1306
1307 bool is_same_java_type_as(const TypeOopPtr* other) const;
1308 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1309 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1310
1311 // Make a pointer to a constant oop.
1312 static const TypeInstPtr *make(ciObject* o) {
1313 return make(TypePtr::Constant, o->klass(), true, o, Offset(0));
1314 }
1315 // Make a pointer to a constant oop with offset.
1316 static const TypeInstPtr* make(ciObject* o, Offset offset) {
1317 return make(TypePtr::Constant, o->klass(), true, o, offset);
1318 }
1319
1320 // Make a pointer to some value of type klass.
1321 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) {
1322 return make(ptr, klass, false, NULL, Offset(0));
1323 }
1324
1325 // Make a pointer to some non-polymorphic value of exactly type klass.
1326 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1327 return make(ptr, klass, true, NULL, Offset(0));
1328 }
1329
1330 // Make a pointer to some value of type klass with offset.
1331 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, Offset offset) {
1332 return make(ptr, klass, false, NULL, offset);
1333 }
1334
1335 // Make a pointer to an oop.
1336 static const TypeInstPtr* make(PTR ptr, ciKlass* k, bool xk, ciObject* o, Offset offset,
1337 bool flatten_array = false,
1338 int instance_id = InstanceBot,
1339 const TypePtr* speculative = NULL,
1340 int inline_depth = InlineDepthBottom);
1341
1342 /** Create constant type for a constant boxed value */
1343 const Type* get_const_boxed_value() const;
1344
1345 // If this is a java.lang.Class constant, return the type for it or NULL.
1346 // Pass to Type::get_const_type to turn it to a type, which will usually
1347 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1348 ciType* java_mirror_type(bool* is_val_mirror = NULL) const;
1349
1350 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1351
1352 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1353
1354 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1355
1356 virtual const TypePtr* add_offset(intptr_t offset) const;
1357 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1358
1359 // Speculative type helper methods.
1360 virtual const TypeInstPtr* remove_speculative() const;
1361 virtual const TypePtr* with_inline_depth(int depth) const;
1362 virtual const TypePtr* with_instance_id(int instance_id) const;
1363
1364 virtual const TypeInstPtr* cast_to_flatten_array() const;
1365 virtual bool flatten_array() const { return _flatten_array; }
1366 virtual bool not_flatten_array() const { return !can_be_inline_type() || (_klass->is_inlinetype() && !flatten_array()); }
1367
1368 // the core of the computation of the meet of 2 types
1369 virtual const Type *xmeet_helper(const Type *t) const;
1370 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const;
1371 virtual const Type *xdual() const; // Compute dual right now.
1372
1373 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1374
1375 bool is_interface() const { return is_loaded() && klass()->is_interface(); }
1376
1377 // Convenience common pre-built types.
1378 static const TypeInstPtr *NOTNULL;
1379 static const TypeInstPtr *BOTTOM;
1380 static const TypeInstPtr *MIRROR;
1381 static const TypeInstPtr *MARK;
1382 static const TypeInstPtr *KLASS;
1383 #ifndef PRODUCT
1384 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1385 #endif
1386 };
1387
1388 //------------------------------TypeAryPtr-------------------------------------
1389 // Class of Java array pointers
1390 class TypeAryPtr : public TypeOopPtr {
1391 TypeAryPtr(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1392 Offset offset, Offset field_offset, int instance_id, bool is_autobox_cache,
1393 const TypePtr* speculative, int inline_depth)
1394 : TypeOopPtr(AryPtr, ptr, k, xk, o, offset, field_offset, instance_id, speculative, inline_depth),
1395 _ary(ary),
1396 _is_autobox_cache(is_autobox_cache),
1397 _field_offset(field_offset)
1398 {
1399 #ifdef ASSERT
1400 if (k != NULL) {
1401 // Verify that specified klass and TypeAryPtr::klass() follow the same rules.
1402 ciKlass* ck = compute_klass(true);
1403 if (k != ck) {
1404 this->dump(); tty->cr();
1405 tty->print(" k: ");
1406 k->print(); tty->cr();
1407 tty->print("ck: ");
1408 if (ck != NULL) ck->print();
1409 else tty->print("<NULL>");
1410 tty->cr();
1411 assert(false, "unexpected TypeAryPtr::_klass");
1412 }
1413 }
1414 #endif
1415 }
1416 virtual bool eq( const Type *t ) const;
1417 virtual int hash() const; // Type specific hashing
1418 const TypeAry *_ary; // Array we point into
1419 const bool _is_autobox_cache;
1420 // For flattened inline type arrays, each field of the inline type in
1421 // the array has its own memory slice so we need to keep track of
1422 // which field is accessed
1423 const Offset _field_offset;
1424 Offset meet_field_offset(const Type::Offset offset) const;
1425 Offset dual_field_offset() const;
1426
1427 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const;
1428
1429 ciKlass* exact_klass_helper() const;
1430 ciKlass* klass() const;
1431
1432 public:
1433
1434 bool is_same_java_type_as(const TypeOopPtr* other) const;
1435 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1436 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1437
1438 // returns base element type, an instance klass (and not interface) for object arrays
1439 const Type* base_element_type(int& dims) const;
1440
1441 // Accessors
1442 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1443
1444 const TypeAry* ary() const { return _ary; }
1445 const Type* elem() const { return _ary->_elem; }
1446 const TypeInt* size() const { return _ary->_size; }
1447 bool is_stable() const { return _ary->_stable; }
1448
1449 // Inline type array properties
1450 bool is_flat() const { return _ary->_elem->isa_inlinetype() != NULL; }
1451 bool is_not_flat() const { return _ary->_not_flat; }
1452 bool is_null_free() const { return is_flat() || (_ary->_elem->make_ptr() != NULL && _ary->_elem->make_ptr()->is_inlinetypeptr() && !_ary->_elem->make_ptr()->maybe_null()); }
1453 bool is_not_null_free() const { return _ary->_not_null_free; }
1454
1455 bool is_autobox_cache() const { return _is_autobox_cache; }
1456
1457 static const TypeAryPtr* make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, Offset offset,
1458 Offset field_offset = Offset::bottom,
1459 int instance_id = InstanceBot,
1460 const TypePtr* speculative = NULL,
1461 int inline_depth = InlineDepthBottom);
1462 // Constant pointer to array
1463 static const TypeAryPtr* make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, Offset offset,
1464 Offset field_offset = Offset::bottom,
1465 int instance_id = InstanceBot,
1466 const TypePtr* speculative = NULL,
1467 int inline_depth = InlineDepthBottom,
1468 bool is_autobox_cache = false);
1469
1470 // Return a 'ptr' version of this type
1471 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1472
1473 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1474
1475 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1476
1477 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1478 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1479
1480 virtual bool empty(void) const; // TRUE if type is vacuous
1481 virtual const TypePtr *add_offset( intptr_t offset ) const;
1482 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1483 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1484
1485 // Speculative type helper methods.
1486 virtual const TypeAryPtr* remove_speculative() const;
1487 virtual const Type* cleanup_speculative() const;
1488 virtual const TypePtr* with_inline_depth(int depth) const;
1489 virtual const TypePtr* with_instance_id(int instance_id) const;
1490
1491 // the core of the computation of the meet of 2 types
1492 virtual const Type *xmeet_helper(const Type *t) const;
1493 virtual const Type *xdual() const; // Compute dual right now.
1494
1495 // Inline type array properties
1496 const TypeAryPtr* cast_to_not_flat(bool not_flat = true) const;
1497 const TypeAryPtr* cast_to_not_null_free(bool not_null_free = true) const;
1498 const TypeAryPtr* update_properties(const TypeAryPtr* new_type) const;
1499 jint flat_layout_helper() const;
1500 int flat_elem_size() const;
1501 int flat_log_elem_size() const;
1502
1503 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1504 int stable_dimension() const;
1505
1506 const TypeAryPtr* cast_to_autobox_cache() const;
1507
1508 static jint max_array_length(BasicType etype);
1509
1510 const int flattened_offset() const;
1511 const Offset field_offset() const { return _field_offset; }
1512 const TypeAryPtr* with_field_offset(int offset) const;
1513 const TypePtr* add_field_offset_and_offset(intptr_t offset) const;
1514
1515 virtual bool can_be_inline_type() const { return false; }
1516 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1517
1518 // Convenience common pre-built types.
1519 static const TypeAryPtr *RANGE;
1520 static const TypeAryPtr *OOPS;
1521 static const TypeAryPtr *NARROWOOPS;
1522 static const TypeAryPtr *BYTES;
1523 static const TypeAryPtr *SHORTS;
1524 static const TypeAryPtr *CHARS;
1525 static const TypeAryPtr *INTS;
1526 static const TypeAryPtr *LONGS;
1527 static const TypeAryPtr *FLOATS;
1528 static const TypeAryPtr *DOUBLES;
1529 static const TypeAryPtr *INLINES;
1530 // selects one of the above:
1531 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1532 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type");
1533 return _array_body_type[elem];
1534 }
1535 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1536 // sharpen the type of an int which is used as an array size
1537 #ifdef ASSERT
1538 // One type is interface, the other is oop
1539 virtual bool interface_vs_oop(const Type *t) const;
1540 #endif
1541 #ifndef PRODUCT
1542 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1543 #endif
1544 };
1545
1546 //------------------------------TypeMetadataPtr-------------------------------------
1547 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1548 class TypeMetadataPtr : public TypePtr {
1549 protected:
1550 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, Offset offset);
1551 // Do not allow interface-vs.-noninterface joins to collapse to top.
1552 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1553 public:
1554 virtual bool eq( const Type *t ) const;
1555 virtual int hash() const; // Type specific hashing
1556 virtual bool singleton(void) const; // TRUE if type is a singleton
1557
1558 private:
1559 ciMetadata* _metadata;
1560
1561 public:
1562 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, Offset offset);
1563
1564 static const TypeMetadataPtr* make(ciMethod* m);
1565 static const TypeMetadataPtr* make(ciMethodData* m);
1566
1567 ciMetadata* metadata() const { return _metadata; }
1568
1569 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1570
1571 virtual const TypePtr *add_offset( intptr_t offset ) const;
1572
1573 virtual const Type *xmeet( const Type *t ) const;
1574 virtual const Type *xdual() const; // Compute dual right now.
1575
1576 virtual intptr_t get_con() const;
1577
1578 // Convenience common pre-built types.
1579 static const TypeMetadataPtr *BOTTOM;
1580
1581 #ifndef PRODUCT
1582 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1583 #endif
1584 };
1585
1586 //------------------------------TypeKlassPtr-----------------------------------
1587 // Class of Java Klass pointers
1588 class TypeKlassPtr : public TypePtr {
1589 friend class TypeInstKlassPtr;
1590 friend class TypeAryKlassPtr;
1591 protected:
1592 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, Offset offset);
1593
1594 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1595
1596 public:
1597 virtual bool eq( const Type *t ) const;
1598 virtual int hash() const;
1599 virtual bool singleton(void) const; // TRUE if type is a singleton
1600
1601 protected:
1602
1603 ciKlass* _klass;
1604
1605 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1606 virtual ciKlass* exact_klass_helper() const;
1607 virtual ciKlass* klass() const { return _klass; }
1608
1609 public:
1610
1611 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1612 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1613 }
1614 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1615 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1616 }
1617 virtual bool is_same_java_type_as(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1618 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1619 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1620
1621 // Exact klass, possibly an interface or an array of interface
1622 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != NULL || maybe_null, ""); return k; }
1623
1624 bool klass_is_exact() const { return _ptr == Constant; }
1625
1626 static const TypeKlassPtr* make(ciKlass* klass);
1627 static const TypeKlassPtr* make(PTR ptr, ciKlass* klass, Offset offset);
1628
1629 virtual bool is_loaded() const { return _klass->is_loaded(); }
1630
1631 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return NULL; }
1632
1633 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return NULL; }
1634
1635 // corresponding pointer to instance, for a given class
1636 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return NULL; }
1637
1638 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return NULL; }
1639 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return NULL; }
1640 virtual const Type *xdual() const { ShouldNotReachHere(); return NULL; }
1641
1642 virtual intptr_t get_con() const;
1643
1644 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return NULL; }
1645
1646 bool can_be_inline_array() const { return (_klass == NULL || _klass->can_be_inline_array_klass()); }
1647 };
1648
1649 // Instance klass pointer, mirrors TypeInstPtr
1650 class TypeInstKlassPtr : public TypeKlassPtr {
1651
1652 TypeInstKlassPtr(PTR ptr, ciKlass* klass, Offset offset, bool flatten_array)
1653 : TypeKlassPtr(InstKlassPtr, ptr, klass, offset), _flatten_array(flatten_array) {
1654 }
1655
1656 virtual bool must_be_exact() const;
1657
1658 const bool _flatten_array; // Type is flat in arrays
1659
1660 public:
1661 // Instance klass ignoring any interface
1662 ciInstanceKlass* instance_klass() const {
1663 if (klass()->is_interface()) {
1664 return Compile::current()->env()->Object_klass();
1665 }
1666 return klass()->as_instance_klass();
1667 }
1668
1669 bool is_same_java_type_as(const TypeKlassPtr* other) const;
1670 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1671 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1672
1673 virtual bool can_be_inline_type() const { return (_klass == NULL || _klass->can_be_inline_klass(klass_is_exact())); }
1674
1675 static const TypeInstKlassPtr *make(ciKlass* k) {
1676 return make(TypePtr::Constant, k, Offset(0), false);
1677 }
1678 static const TypeInstKlassPtr *make(PTR ptr, ciKlass* k, Offset offset, bool flatten_array = false);
1679
1680 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1681
1682 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1683
1684 // corresponding pointer to instance, for a given class
1685 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1686 virtual int hash() const;
1687 virtual bool eq(const Type *t) const;
1688
1689 virtual const TypePtr *add_offset( intptr_t offset ) const;
1690 virtual const Type *xmeet( const Type *t ) const;
1691 virtual const Type *xdual() const;
1692 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1693
1694 bool is_interface() const { return klass()->is_interface(); }
1695
1696 virtual bool flatten_array() const { return _flatten_array; }
1697 virtual bool not_flatten_array() const { return !_klass->can_be_inline_klass() || (_klass->is_inlinetype() && !flatten_array()); }
1698
1699 // Convenience common pre-built types.
1700 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1701 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1702
1703 #ifndef PRODUCT
1704 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1705 #endif
1706 };
1707
1708 // Array klass pointer, mirrors TypeAryPtr
1709 class TypeAryKlassPtr : public TypeKlassPtr {
1710 friend class TypeInstKlassPtr;
1711 const Type *_elem;
1712 const bool _not_flat; // Array is never flattened
1713 const bool _not_null_free; // Array is never null-free
1714 const bool _null_free;
1715
1716 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, Offset offset, bool not_flat, int not_null_free, bool null_free)
1717 : TypeKlassPtr(AryKlassPtr, ptr, klass, offset), _elem(elem), _not_flat(not_flat), _not_null_free(not_null_free), _null_free(null_free) {
1718 }
1719
1720 virtual ciKlass* exact_klass_helper() const;
1721 virtual ciKlass* klass() const;
1722
1723 virtual bool must_be_exact() const;
1724
1725 bool dual_null_free() const {
1726 return _null_free;
1727 }
1728
1729 bool meet_null_free(bool other) const {
1730 return _null_free && other;
1731 }
1732
1733 public:
1734
1735 // returns base element type, an instance klass (and not interface) for object arrays
1736 const Type* base_element_type(int& dims) const;
1737
1738 static const TypeAryKlassPtr* make(PTR ptr, ciKlass* k, Offset offset, bool not_flat, bool not_null_free, bool null_free);
1739
1740 bool is_same_java_type_as(const TypeKlassPtr* other) const;
1741 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1742 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1743
1744 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1745
1746 static const TypeAryKlassPtr* make(PTR ptr, const Type* elem, ciKlass* k, Offset offset, bool not_flat, bool not_null_free, bool null_free);
1747 static const TypeAryKlassPtr* make(PTR ptr, ciKlass* k, Offset offset);
1748 static const TypeAryKlassPtr* make(ciKlass* klass);
1749
1750 const Type *elem() const { return _elem; }
1751
1752 virtual bool eq(const Type *t) const;
1753 virtual int hash() const; // Type specific hashing
1754
1755 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1756
1757 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1758
1759 // corresponding pointer to instance, for a given class
1760 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1761
1762 virtual const TypePtr *add_offset( intptr_t offset ) const;
1763 virtual const Type *xmeet( const Type *t ) const;
1764 virtual const Type *xdual() const; // Compute dual right now.
1765
1766 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1767
1768 virtual bool empty(void) const {
1769 return TypeKlassPtr::empty() || _elem->empty();
1770 }
1771
1772 bool is_flat() const { return klass() != NULL && klass()->is_flat_array_klass(); }
1773 bool is_not_flat() const { return _not_flat; }
1774 bool is_null_free() const { return _null_free; }
1775 bool is_not_null_free() const { return _not_null_free; }
1776
1777 #ifndef PRODUCT
1778 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1779 #endif
1780 };
1781
1782 class TypeNarrowPtr : public Type {
1783 protected:
1784 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1785
1786 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1787 _ptrtype(ptrtype) {
1788 assert(ptrtype->offset() == 0 ||
1789 ptrtype->offset() == OffsetBot ||
1790 ptrtype->offset() == OffsetTop, "no real offsets");
1791 }
1792
1793 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1794 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1795 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1796 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1890 }
1891
1892 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1893 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1894 }
1895
1896 public:
1897 static const TypeNarrowKlass *make( const TypePtr* type);
1898
1899 // static const TypeNarrowKlass *BOTTOM;
1900 static const TypeNarrowKlass *NULL_PTR;
1901
1902 #ifndef PRODUCT
1903 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1904 #endif
1905 };
1906
1907 //------------------------------TypeFunc---------------------------------------
1908 // Class of Array Types
1909 class TypeFunc : public Type {
1910 TypeFunc(const TypeTuple *domain_sig, const TypeTuple *domain_cc, const TypeTuple *range_sig, const TypeTuple *range_cc)
1911 : Type(Function), _domain_sig(domain_sig), _domain_cc(domain_cc), _range_sig(range_sig), _range_cc(range_cc) {}
1912 virtual bool eq( const Type *t ) const;
1913 virtual int hash() const; // Type specific hashing
1914 virtual bool singleton(void) const; // TRUE if type is a singleton
1915 virtual bool empty(void) const; // TRUE if type is vacuous
1916
1917 // Domains of inputs: inline type arguments are not passed by
1918 // reference, instead each field of the inline type is passed as an
1919 // argument. We maintain 2 views of the argument list here: one
1920 // based on the signature (with an inline type argument as a single
1921 // slot), one based on the actual calling convention (with a value
1922 // type argument as a list of its fields).
1923 const TypeTuple* const _domain_sig;
1924 const TypeTuple* const _domain_cc;
1925 // Range of results. Similar to domains: an inline type result can be
1926 // returned in registers in which case range_cc lists all fields and
1927 // is the actual calling convention.
1928 const TypeTuple* const _range_sig;
1929 const TypeTuple* const _range_cc;
1930
1931 public:
1932 // Constants are shared among ADLC and VM
1933 enum { Control = AdlcVMDeps::Control,
1934 I_O = AdlcVMDeps::I_O,
1935 Memory = AdlcVMDeps::Memory,
1936 FramePtr = AdlcVMDeps::FramePtr,
1937 ReturnAdr = AdlcVMDeps::ReturnAdr,
1938 Parms = AdlcVMDeps::Parms
1939 };
1940
1941
1942 // Accessors:
1943 const TypeTuple* domain_sig() const { return _domain_sig; }
1944 const TypeTuple* domain_cc() const { return _domain_cc; }
1945 const TypeTuple* range_sig() const { return _range_sig; }
1946 const TypeTuple* range_cc() const { return _range_cc; }
1947
1948 static const TypeFunc* make(ciMethod* method, bool is_osr_compilation = false);
1949 static const TypeFunc *make(const TypeTuple* domain_sig, const TypeTuple* domain_cc,
1950 const TypeTuple* range_sig, const TypeTuple* range_cc);
1951 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
1952
1953 virtual const Type *xmeet( const Type *t ) const;
1954 virtual const Type *xdual() const; // Compute dual right now.
1955
1956 BasicType return_type() const;
1957
1958 bool returns_inline_type_as_fields() const { return range_sig() != range_cc(); }
1959
1960 #ifndef PRODUCT
1961 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1962 #endif
1963 // Convenience common pre-built types.
1964 };
1965
1966 //------------------------------accessors--------------------------------------
1967 inline bool Type::is_ptr_to_narrowoop() const {
1968 #ifdef _LP64
1969 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv());
1970 #else
1971 return false;
1972 #endif
1973 }
1974
1975 inline bool Type::is_ptr_to_narrowklass() const {
1976 #ifdef _LP64
1977 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv());
1978 #else
1979 return false;
2111 }
2112
2113 inline const TypeInstPtr *Type::isa_instptr() const {
2114 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL;
2115 }
2116
2117 inline const TypeInstPtr *Type::is_instptr() const {
2118 assert( _base == InstPtr, "Not an object pointer" );
2119 return (TypeInstPtr*)this;
2120 }
2121
2122 inline const TypeAryPtr *Type::isa_aryptr() const {
2123 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL;
2124 }
2125
2126 inline const TypeAryPtr *Type::is_aryptr() const {
2127 assert( _base == AryPtr, "Not an array pointer" );
2128 return (TypeAryPtr*)this;
2129 }
2130
2131 inline const TypeInlineType* Type::isa_inlinetype() const {
2132 return (_base == InlineType) ? (TypeInlineType*)this : NULL;
2133 }
2134
2135 inline const TypeInlineType* Type::is_inlinetype() const {
2136 assert(_base == InlineType, "Not an inline type");
2137 return (TypeInlineType*)this;
2138 }
2139
2140 inline const TypeNarrowOop *Type::is_narrowoop() const {
2141 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2142 assert(_base == NarrowOop, "Not a narrow oop" ) ;
2143 return (TypeNarrowOop*)this;
2144 }
2145
2146 inline const TypeNarrowOop *Type::isa_narrowoop() const {
2147 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2148 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL;
2149 }
2150
2151 inline const TypeNarrowKlass *Type::is_narrowklass() const {
2152 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
2153 return (TypeNarrowKlass*)this;
2154 }
2155
2156 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
2157 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL;
2158 }
2159
2204 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2205 }
2206
2207 inline const TypeNarrowOop* Type::make_narrowoop() const {
2208 return (_base == NarrowOop) ? is_narrowoop() :
2209 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL);
2210 }
2211
2212 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2213 return (_base == NarrowKlass) ? is_narrowklass() :
2214 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL);
2215 }
2216
2217 inline bool Type::is_floatingpoint() const {
2218 if( (_base == FloatCon) || (_base == FloatBot) ||
2219 (_base == DoubleCon) || (_base == DoubleBot) )
2220 return true;
2221 return false;
2222 }
2223
2224 inline bool Type::is_inlinetypeptr() const {
2225 return isa_instptr() != NULL && is_instptr()->instance_klass()->is_inlinetype();
2226 }
2227
2228 inline ciInlineKlass* Type::inline_klass() const {
2229 assert(is_inlinetypeptr(), "must be an inline type ptr");
2230 return is_instptr()->instance_klass()->as_inline_klass();
2231 }
2232
2233
2234 // ===============================================================
2235 // Things that need to be 64-bits in the 64-bit build but
2236 // 32-bits in the 32-bit build. Done this way to get full
2237 // optimization AND strong typing.
2238 #ifdef _LP64
2239
2240 // For type queries and asserts
2241 #define is_intptr_t is_long
2242 #define isa_intptr_t isa_long
2243 #define find_intptr_t_type find_long_type
2244 #define find_intptr_t_con find_long_con
2245 #define TypeX TypeLong
2246 #define Type_X Type::Long
2247 #define TypeX_X TypeLong::LONG
2248 #define TypeX_ZERO TypeLong::ZERO
2249 // For 'ideal_reg' machine registers
2250 #define Op_RegX Op_RegL
2251 // For phase->intcon variants
2252 #define MakeConX longcon
2253 #define ConXNode ConLNode
2254 // For array index arithmetic
2255 #define MulXNode MulLNode
2256 #define AndXNode AndLNode
2257 #define OrXNode OrLNode
2258 #define CmpXNode CmpLNode
2259 #define CmpUXNode CmpULNode
2260 #define SubXNode SubLNode
2261 #define LShiftXNode LShiftLNode
2262 // For object size computation:
2263 #define AddXNode AddLNode
2264 #define RShiftXNode RShiftLNode
2265 // For card marks and hashcodes
2266 #define URShiftXNode URShiftLNode
2267 // For shenandoahSupport
2268 #define LoadXNode LoadLNode
2269 #define StoreXNode StoreLNode
2270 // Opcodes
2271 #define Op_LShiftX Op_LShiftL
2272 #define Op_AndX Op_AndL
2273 #define Op_AddX Op_AddL
2274 #define Op_SubX Op_SubL
2275 #define Op_XorX Op_XorL
2276 #define Op_URShiftX Op_URShiftL
2277 #define Op_LoadX Op_LoadL
2278 #define Op_StoreX Op_StoreL
2279 // conversions
2280 #define ConvI2X(x) ConvI2L(x)
2281 #define ConvL2X(x) (x)
2282 #define ConvX2I(x) ConvL2I(x)
2283 #define ConvX2L(x) (x)
2284 #define ConvX2UL(x) (x)
2285
2286 #else
2287
2288 // For type queries and asserts
2289 #define is_intptr_t is_int
2290 #define isa_intptr_t isa_int
2291 #define find_intptr_t_type find_int_type
2292 #define find_intptr_t_con find_int_con
2293 #define TypeX TypeInt
2294 #define Type_X Type::Int
2295 #define TypeX_X TypeInt::INT
2296 #define TypeX_ZERO TypeInt::ZERO
2297 // For 'ideal_reg' machine registers
2298 #define Op_RegX Op_RegI
2299 // For phase->intcon variants
2300 #define MakeConX intcon
2301 #define ConXNode ConINode
2302 // For array index arithmetic
2303 #define MulXNode MulINode
2304 #define AndXNode AndINode
2305 #define OrXNode OrINode
2306 #define CmpXNode CmpINode
2307 #define CmpUXNode CmpUNode
2308 #define SubXNode SubINode
2309 #define LShiftXNode LShiftINode
2310 // For object size computation:
2311 #define AddXNode AddINode
2312 #define RShiftXNode RShiftINode
2313 // For card marks and hashcodes
2314 #define URShiftXNode URShiftINode
2315 // For shenandoahSupport
2316 #define LoadXNode LoadINode
2317 #define StoreXNode StoreINode
2318 // Opcodes
2319 #define Op_LShiftX Op_LShiftI
2320 #define Op_AndX Op_AndI
2321 #define Op_AddX Op_AddI
2322 #define Op_SubX Op_SubI
2323 #define Op_XorX Op_XorI
2324 #define Op_URShiftX Op_URShiftI
2325 #define Op_LoadX Op_LoadI
2326 #define Op_StoreX Op_StoreI
2327 // conversions
2328 #define ConvI2X(x) (x)
2329 #define ConvL2X(x) ConvL2I(x)
2330 #define ConvX2I(x) (x)
2331 #define ConvX2L(x) ConvI2L(x)
2332 #define ConvX2UL(x) ConvI2UL(x)
2333
2334 #endif
2335
2336 #endif // SHARE_OPTO_TYPE_HPP
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