47 class TypeD;
48 class TypeF;
49 class TypeInt;
50 class TypeLong;
51 class TypeNarrowOop;
52 class TypeAry;
53 class TypeTuple;
54 class TypePtr;
55 class TypeRawPtr;
56 class TypeOopPtr;
57 class TypeInstPtr;
58 class TypeAryPtr;
59 class TypeKlassPtr;
60
61 //------------------------------Type-------------------------------------------
62 // Basic Type object, represents a set of primitive Values.
63 // Types are hash-cons'd into a private class dictionary, so only one of each
64 // different kind of Type exists. Types are never modified after creation, so
65 // all their interesting fields are constant.
66 class Type {
67 public:
68 enum TYPES {
69 Bad=0, // Type check
70 Control, // Control of code (not in lattice)
71 Top, // Top of the lattice
72 Int, // Integer range (lo-hi)
73 Long, // Long integer range (lo-hi)
74 Half, // Placeholder half of doubleword
75 NarrowOop, // Compressed oop pointer
76
77 Tuple, // Method signature or object layout
78 Array, // Array types
79
80 AnyPtr, // Any old raw, klass, inst, or array pointer
81 RawPtr, // Raw (non-oop) pointers
82 OopPtr, // Any and all Java heap entities
83 InstPtr, // Instance pointers (non-array objects)
84 AryPtr, // Array pointers
85 KlassPtr, // Klass pointers
86 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
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47 class TypeD;
48 class TypeF;
49 class TypeInt;
50 class TypeLong;
51 class TypeNarrowOop;
52 class TypeAry;
53 class TypeTuple;
54 class TypePtr;
55 class TypeRawPtr;
56 class TypeOopPtr;
57 class TypeInstPtr;
58 class TypeAryPtr;
59 class TypeKlassPtr;
60
61 //------------------------------Type-------------------------------------------
62 // Basic Type object, represents a set of primitive Values.
63 // Types are hash-cons'd into a private class dictionary, so only one of each
64 // different kind of Type exists. Types are never modified after creation, so
65 // all their interesting fields are constant.
66 class Type {
67 friend class VMStructs;
68
69 public:
70 enum TYPES {
71 Bad=0, // Type check
72 Control, // Control of code (not in lattice)
73 Top, // Top of the lattice
74 Int, // Integer range (lo-hi)
75 Long, // Long integer range (lo-hi)
76 Half, // Placeholder half of doubleword
77 NarrowOop, // Compressed oop pointer
78
79 Tuple, // Method signature or object layout
80 Array, // Array types
81
82 AnyPtr, // Any old raw, klass, inst, or array pointer
83 RawPtr, // Raw (non-oop) pointers
84 OopPtr, // Any and all Java heap entities
85 InstPtr, // Instance pointers (non-array objects)
86 AryPtr, // Array pointers
87 KlassPtr, // Klass pointers
88 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
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