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comparison src/share/vm/runtime/javaCalls.hpp @ 1506:2338d41fbd81

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6943304: remove tagged stack interpreter Reviewed-by: coleenp, never, gbenson
author twisti
date Fri, 30 Apr 2010 08:37:24 -0700
parents ad8c8ca4ab0f
children c18cbe5936b8
comparison
equal deleted inserted replaced
1505:0c5b3cf3c1f5 1506:2338d41fbd81
64 enum Constants { 64 enum Constants {
65 _default_size = 8 // Must be at least # of arguments in JavaCalls methods 65 _default_size = 8 // Must be at least # of arguments in JavaCalls methods
66 }; 66 };
67 67
68 intptr_t _value_buffer [_default_size + 1]; 68 intptr_t _value_buffer [_default_size + 1];
69 intptr_t _parameter_buffer [_default_size*2 + 1];
70 bool _is_oop_buffer[_default_size + 1]; 69 bool _is_oop_buffer[_default_size + 1];
71 70
72 intptr_t* _value; 71 intptr_t* _value;
73 intptr_t* _parameters;
74 bool* _is_oop; 72 bool* _is_oop;
75 int _size; 73 int _size;
76 int _max_size; 74 int _max_size;
77 bool _start_at_zero; // Support late setting of receiver 75 bool _start_at_zero; // Support late setting of receiver
78 76
79 void initialize() { 77 void initialize() {
80 // Starts at first element to support set_receiver. 78 // Starts at first element to support set_receiver.
81 _value = &_value_buffer[1]; 79 _value = &_value_buffer[1];
82 _is_oop = &_is_oop_buffer[1]; 80 _is_oop = &_is_oop_buffer[1];
83 81
84 _parameters = &_parameter_buffer[0];
85 _max_size = _default_size; 82 _max_size = _default_size;
86 _size = 0; 83 _size = 0;
87 _start_at_zero = false; 84 _start_at_zero = false;
88 } 85 }
89 86
97 94
98 JavaCallArguments(int max_size) { 95 JavaCallArguments(int max_size) {
99 if (max_size > _default_size) { 96 if (max_size > _default_size) {
100 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); 97 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1);
101 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1); 98 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1);
102 if (TaggedStackInterpreter) { 99
103 _parameters = NEW_RESOURCE_ARRAY(intptr_t, max_size*2 + 1);
104 }
105 // Reserve room for potential receiver in value and is_oop 100 // Reserve room for potential receiver in value and is_oop
106 _value++; _is_oop++; 101 _value++; _is_oop++;
102
107 _max_size = max_size; 103 _max_size = max_size;
108 _size = 0; 104 _size = 0;
109 _start_at_zero = false; 105 _start_at_zero = false;
110 } else { 106 } else {
111 initialize(); 107 initialize();