31 #include "opto/subnode.hpp"
32 #include "opto/type.hpp"
33
34 class PhaseGVN;
35 class PhaseTransform;
36
37 class OverflowNode : public CmpNode {
38 public:
39 OverflowNode(Node* in1, Node* in2) : CmpNode(in1, in2) {}
40
41 virtual uint ideal_reg() const { return Op_RegFlags; }
42 virtual const Type* sub(const Type* t1, const Type* t2) const;
43 };
44
45 class OverflowINode : public OverflowNode {
46 public:
47 typedef TypeInt TypeClass;
48
49 OverflowINode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
50 virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
51 virtual const Type* Value(PhaseTransform* phase) const;
52
53 virtual bool will_overflow(jint v1, jint v2) const = 0;
54 virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
55 };
56
57
58 class OverflowLNode : public OverflowNode {
59 public:
60 typedef TypeLong TypeClass;
61
62 OverflowLNode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
63 virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
64 virtual const Type* Value(PhaseTransform* phase) const;
65
66 virtual bool will_overflow(jlong v1, jlong v2) const = 0;
67 virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
68 };
69
70 class OverflowAddINode : public OverflowINode {
71 public:
72 typedef AddINode MathOp;
73
74 OverflowAddINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}
75 virtual int Opcode() const;
76
77 virtual bool will_overflow(jint v1, jint v2) const;
78 virtual bool can_overflow(const Type* t1, const Type* t2) const;
79 };
80
81 class OverflowSubINode : public OverflowINode {
82 public:
83 typedef SubINode MathOp;
84
|
31 #include "opto/subnode.hpp"
32 #include "opto/type.hpp"
33
34 class PhaseGVN;
35 class PhaseTransform;
36
37 class OverflowNode : public CmpNode {
38 public:
39 OverflowNode(Node* in1, Node* in2) : CmpNode(in1, in2) {}
40
41 virtual uint ideal_reg() const { return Op_RegFlags; }
42 virtual const Type* sub(const Type* t1, const Type* t2) const;
43 };
44
45 class OverflowINode : public OverflowNode {
46 public:
47 typedef TypeInt TypeClass;
48
49 OverflowINode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
50 virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
51 virtual const Type* Value(PhaseGVN* phase) const;
52
53 virtual bool will_overflow(jint v1, jint v2) const = 0;
54 virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
55 };
56
57
58 class OverflowLNode : public OverflowNode {
59 public:
60 typedef TypeLong TypeClass;
61
62 OverflowLNode(Node* in1, Node* in2) : OverflowNode(in1, in2) {}
63 virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
64 virtual const Type* Value(PhaseGVN* phase) const;
65
66 virtual bool will_overflow(jlong v1, jlong v2) const = 0;
67 virtual bool can_overflow(const Type* t1, const Type* t2) const = 0;
68 };
69
70 class OverflowAddINode : public OverflowINode {
71 public:
72 typedef AddINode MathOp;
73
74 OverflowAddINode(Node* in1, Node* in2) : OverflowINode(in1, in2) {}
75 virtual int Opcode() const;
76
77 virtual bool will_overflow(jint v1, jint v2) const;
78 virtual bool can_overflow(const Type* t1, const Type* t2) const;
79 };
80
81 class OverflowSubINode : public OverflowINode {
82 public:
83 typedef SubINode MathOp;
84
|