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comparison src/share/vm/ci/ciEnv.cpp @ 1080:7c57aead6d3e

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6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
author never
date Thu, 12 Nov 2009 09:24:21 -0800
parents 389049f3f393
children 97125851f396
comparison
equal deleted inserted replaced
1078:8e7adf982378 1080:7c57aead6d3e
44 ciInstanceKlass* ciEnv::_Object; 44 ciInstanceKlass* ciEnv::_Object;
45 ciInstanceKlass* ciEnv::_Throwable; 45 ciInstanceKlass* ciEnv::_Throwable;
46 ciInstanceKlass* ciEnv::_Thread; 46 ciInstanceKlass* ciEnv::_Thread;
47 ciInstanceKlass* ciEnv::_OutOfMemoryError; 47 ciInstanceKlass* ciEnv::_OutOfMemoryError;
48 ciInstanceKlass* ciEnv::_String; 48 ciInstanceKlass* ciEnv::_String;
49 ciInstanceKlass* ciEnv::_StringBuffer;
50 ciInstanceKlass* ciEnv::_StringBuilder;
51 ciInstanceKlass* ciEnv::_Integer;
49 52
50 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 53 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
51 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 54 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
52 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 55 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
53 56
108 _ArithmeticException_instance = get_object(o)->as_instance(); 111 _ArithmeticException_instance = get_object(o)->as_instance();
109 112
110 _ArrayIndexOutOfBoundsException_instance = NULL; 113 _ArrayIndexOutOfBoundsException_instance = NULL;
111 _ArrayStoreException_instance = NULL; 114 _ArrayStoreException_instance = NULL;
112 _ClassCastException_instance = NULL; 115 _ClassCastException_instance = NULL;
116 _the_null_string = NULL;
117 _the_min_jint_string = NULL;
113 } 118 }
114 119
115 ciEnv::ciEnv(Arena* arena) { 120 ciEnv::ciEnv(Arena* arena) {
116 ASSERT_IN_VM; 121 ASSERT_IN_VM;
117 122
161 _ArithmeticException_instance = get_object(o)->as_instance(); 166 _ArithmeticException_instance = get_object(o)->as_instance();
162 167
163 _ArrayIndexOutOfBoundsException_instance = NULL; 168 _ArrayIndexOutOfBoundsException_instance = NULL;
164 _ArrayStoreException_instance = NULL; 169 _ArrayStoreException_instance = NULL;
165 _ClassCastException_instance = NULL; 170 _ClassCastException_instance = NULL;
171 _the_null_string = NULL;
172 _the_min_jint_string = NULL;
166 } 173 }
167 174
168 ciEnv::~ciEnv() { 175 ciEnv::~ciEnv() {
169 CompilerThread* current_thread = CompilerThread::current(); 176 CompilerThread* current_thread = CompilerThread::current();
170 current_thread->set_env(NULL); 177 current_thread->set_env(NULL);
244 _ClassCastException_instance 251 _ClassCastException_instance
245 = get_or_create_exception(_ClassCastException_handle, 252 = get_or_create_exception(_ClassCastException_handle,
246 vmSymbolHandles::java_lang_ClassCastException()); 253 vmSymbolHandles::java_lang_ClassCastException());
247 } 254 }
248 return _ClassCastException_instance; 255 return _ClassCastException_instance;
256 }
257
258 ciInstance* ciEnv::the_null_string() {
259 if (_the_null_string == NULL) {
260 VM_ENTRY_MARK;
261 _the_null_string = get_object(Universe::the_null_string())->as_instance();
262 }
263 return _the_null_string;
264 }
265
266 ciInstance* ciEnv::the_min_jint_string() {
267 if (_the_min_jint_string == NULL) {
268 VM_ENTRY_MARK;
269 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
270 }
271 return _the_min_jint_string;
249 } 272 }
250 273
251 // ------------------------------------------------------------------ 274 // ------------------------------------------------------------------
252 // ciEnv::get_method_from_handle 275 // ciEnv::get_method_from_handle
253 ciMethod* ciEnv::get_method_from_handle(jobject method) { 276 ciMethod* ciEnv::get_method_from_handle(jobject method) {