< prev index next >

src/hotspot/cpu/x86/c1_CodeStubs_x86.cpp

Print this page

 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 #include "c1/c1_CodeStubs.hpp"
 26 #include "c1/c1_FrameMap.hpp"
 27 #include "c1/c1_LIRAssembler.hpp"
 28 #include "c1/c1_MacroAssembler.hpp"
 29 #include "c1/c1_Runtime1.hpp"
 30 #include "classfile/javaClasses.hpp"
 31 #include "nativeInst_x86.hpp"

 32 #include "runtime/sharedRuntime.hpp"
 33 #include "utilities/align.hpp"
 34 #include "utilities/macros.hpp"
 35 #include "vmreg_x86.inline.hpp"
 36 
 37 
 38 #define __ ce->masm()->
 39 
 40 void C1SafepointPollStub::emit_code(LIR_Assembler* ce) {
 41   __ bind(_entry);
 42   InternalAddress safepoint_pc(ce->masm()->pc() - ce->masm()->offset() + safepoint_offset());
 43   __ lea(rscratch1, safepoint_pc);
 44   __ movptr(Address(r15_thread, JavaThread::saved_exception_pc_offset()), rscratch1);
 45 
 46   assert(SharedRuntime::polling_page_return_handler_blob() != nullptr,
 47          "polling page return stub not created yet");
 48 
 49   address stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
 50   __ jump(RuntimeAddress(stub));
 51 }

 98 void PredicateFailedStub::emit_code(LIR_Assembler* ce) {
 99   __ bind(_entry);
100   address a = Runtime1::entry_for(C1StubId::predicate_failed_trap_id);
101   __ call(RuntimeAddress(a));
102   ce->add_call_info_here(_info);
103   ce->verify_oop_map(_info);
104   debug_only(__ should_not_reach_here());
105 }
106 
107 void DivByZeroStub::emit_code(LIR_Assembler* ce) {
108   if (_offset != -1) {
109     ce->compilation()->implicit_exception_table()->append(_offset, __ offset());
110   }
111   __ bind(_entry);
112   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::throw_div0_exception_id)));
113   ce->add_call_info_here(_info);
114   debug_only(__ should_not_reach_here());
115 }
116 
117 









































































118 // Implementation of NewInstanceStub
119 
120 NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, C1StubId stub_id) {
121   _result = result;
122   _klass = klass;
123   _klass_reg = klass_reg;
124   _info = new CodeEmitInfo(info);
125   assert(stub_id == C1StubId::new_instance_id                 ||
126          stub_id == C1StubId::fast_new_instance_id            ||
127          stub_id == C1StubId::fast_new_instance_init_check_id,
128          "need new_instance id");
129   _stub_id   = stub_id;
130 }
131 
132 
133 void NewInstanceStub::emit_code(LIR_Assembler* ce) {
134   assert(__ rsp_offset() == 0, "frame size should be fixed");
135   __ bind(_entry);
136   __ movptr(rdx, _klass_reg->as_register());
137   __ call(RuntimeAddress(Runtime1::entry_for(_stub_id)));

150   _result = result;
151   _info = new CodeEmitInfo(info);
152 }
153 
154 
155 void NewTypeArrayStub::emit_code(LIR_Assembler* ce) {
156   assert(__ rsp_offset() == 0, "frame size should be fixed");
157   __ bind(_entry);
158   assert(_length->as_register() == rbx, "length must in rbx,");
159   assert(_klass_reg->as_register() == rdx, "klass_reg must in rdx");
160   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::new_type_array_id)));
161   ce->add_call_info_here(_info);
162   ce->verify_oop_map(_info);
163   assert(_result->as_register() == rax, "result must in rax,");
164   __ jmp(_continuation);
165 }
166 
167 
168 // Implementation of NewObjectArrayStub
169 
170 NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) {

171   _klass_reg = klass_reg;
172   _result = result;
173   _length = length;
174   _info = new CodeEmitInfo(info);

175 }
176 
177 
178 void NewObjectArrayStub::emit_code(LIR_Assembler* ce) {
179   assert(__ rsp_offset() == 0, "frame size should be fixed");
180   __ bind(_entry);
181   assert(_length->as_register() == rbx, "length must in rbx,");
182   assert(_klass_reg->as_register() == rdx, "klass_reg must in rdx");
183   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::new_object_array_id)));




184   ce->add_call_info_here(_info);
185   ce->verify_oop_map(_info);
186   assert(_result->as_register() == rax, "result must in rax,");
187   __ jmp(_continuation);
188 }
189 
190 void MonitorEnterStub::emit_code(LIR_Assembler* ce) {
191   assert(__ rsp_offset() == 0, "frame size should be fixed");
192   __ bind(_entry);









193   ce->store_parameter(_obj_reg->as_register(),  1);
194   ce->store_parameter(_lock_reg->as_register(), 0);
195   C1StubId enter_id;
196   if (ce->compilation()->has_fpu_code()) {
197     enter_id = C1StubId::monitorenter_id;
198   } else {
199     enter_id = C1StubId::monitorenter_nofpu_id;
200   }
201   __ call(RuntimeAddress(Runtime1::entry_for(enter_id)));
202   ce->add_call_info_here(_info);
203   ce->verify_oop_map(_info);
204   __ jmp(_continuation);
205 }
206 
207 
208 void MonitorExitStub::emit_code(LIR_Assembler* ce) {
209   __ bind(_entry);
210   if (_compute_lock) {
211     // lock_reg was destroyed by fast unlocking attempt => recompute it
212     ce->monitor_address(_monitor_ix, _lock_reg);

 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 #include "c1/c1_CodeStubs.hpp"
 26 #include "c1/c1_FrameMap.hpp"
 27 #include "c1/c1_LIRAssembler.hpp"
 28 #include "c1/c1_MacroAssembler.hpp"
 29 #include "c1/c1_Runtime1.hpp"
 30 #include "classfile/javaClasses.hpp"
 31 #include "nativeInst_x86.hpp"
 32 #include "oops/objArrayKlass.hpp"
 33 #include "runtime/sharedRuntime.hpp"
 34 #include "utilities/align.hpp"
 35 #include "utilities/macros.hpp"
 36 #include "vmreg_x86.inline.hpp"
 37 
 38 
 39 #define __ ce->masm()->
 40 
 41 void C1SafepointPollStub::emit_code(LIR_Assembler* ce) {
 42   __ bind(_entry);
 43   InternalAddress safepoint_pc(ce->masm()->pc() - ce->masm()->offset() + safepoint_offset());
 44   __ lea(rscratch1, safepoint_pc);
 45   __ movptr(Address(r15_thread, JavaThread::saved_exception_pc_offset()), rscratch1);
 46 
 47   assert(SharedRuntime::polling_page_return_handler_blob() != nullptr,
 48          "polling page return stub not created yet");
 49 
 50   address stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
 51   __ jump(RuntimeAddress(stub));
 52 }

 99 void PredicateFailedStub::emit_code(LIR_Assembler* ce) {
100   __ bind(_entry);
101   address a = Runtime1::entry_for(C1StubId::predicate_failed_trap_id);
102   __ call(RuntimeAddress(a));
103   ce->add_call_info_here(_info);
104   ce->verify_oop_map(_info);
105   debug_only(__ should_not_reach_here());
106 }
107 
108 void DivByZeroStub::emit_code(LIR_Assembler* ce) {
109   if (_offset != -1) {
110     ce->compilation()->implicit_exception_table()->append(_offset, __ offset());
111   }
112   __ bind(_entry);
113   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::throw_div0_exception_id)));
114   ce->add_call_info_here(_info);
115   debug_only(__ should_not_reach_here());
116 }
117 
118 
119 // Implementation of LoadFlattenedArrayStub
120 
121 LoadFlattenedArrayStub::LoadFlattenedArrayStub(LIR_Opr array, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info) {
122   _array = array;
123   _index = index;
124   _result = result;
125   // Tell the register allocator that the runtime call will scratch rax.
126   _scratch_reg = FrameMap::rax_oop_opr;
127   _info = new CodeEmitInfo(info);
128 }
129 
130 void LoadFlattenedArrayStub::emit_code(LIR_Assembler* ce) {
131   assert(__ rsp_offset() == 0, "frame size should be fixed");
132   __ bind(_entry);
133   ce->store_parameter(_array->as_register(), 1);
134   ce->store_parameter(_index->as_register(), 0);
135   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::load_flat_array_id)));
136   ce->add_call_info_here(_info);
137   ce->verify_oop_map(_info);
138   if (_result->as_register() != rax) {
139     __ movptr(_result->as_register(), rax);
140   }
141   __ jmp(_continuation);
142 }
143 
144 
145 // Implementation of StoreFlattenedArrayStub
146 
147 StoreFlattenedArrayStub::StoreFlattenedArrayStub(LIR_Opr array, LIR_Opr index, LIR_Opr value, CodeEmitInfo* info) {
148   _array = array;
149   _index = index;
150   _value = value;
151   // Tell the register allocator that the runtime call will scratch rax.
152   _scratch_reg = FrameMap::rax_oop_opr;
153   _info = new CodeEmitInfo(info);
154 }
155 
156 
157 void StoreFlattenedArrayStub::emit_code(LIR_Assembler* ce) {
158   assert(__ rsp_offset() == 0, "frame size should be fixed");
159   __ bind(_entry);
160   ce->store_parameter(_array->as_register(), 2);
161   ce->store_parameter(_index->as_register(), 1);
162   ce->store_parameter(_value->as_register(), 0);
163   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::store_flat_array_id)));
164   ce->add_call_info_here(_info);
165   ce->verify_oop_map(_info);
166   __ jmp(_continuation);
167 }
168 
169 
170 // Implementation of SubstitutabilityCheckStub
171 
172 SubstitutabilityCheckStub::SubstitutabilityCheckStub(LIR_Opr left, LIR_Opr right, CodeEmitInfo* info) {
173   _left = left;
174   _right = right;
175   // Tell the register allocator that the runtime call will scratch rax.
176   _scratch_reg = FrameMap::rax_oop_opr;
177   _info = new CodeEmitInfo(info);
178 }
179 
180 void SubstitutabilityCheckStub::emit_code(LIR_Assembler* ce) {
181   assert(__ rsp_offset() == 0, "frame size should be fixed");
182   __ bind(_entry);
183   ce->store_parameter(_left->as_register(), 1);
184   ce->store_parameter(_right->as_register(), 0);
185   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::substitutability_check_id)));
186   ce->add_call_info_here(_info);
187   ce->verify_oop_map(_info);
188   __ jmp(_continuation);
189 }
190 
191 
192 // Implementation of NewInstanceStub
193 
194 NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, C1StubId stub_id) {
195   _result = result;
196   _klass = klass;
197   _klass_reg = klass_reg;
198   _info = new CodeEmitInfo(info);
199   assert(stub_id == C1StubId::new_instance_id                 ||
200          stub_id == C1StubId::fast_new_instance_id            ||
201          stub_id == C1StubId::fast_new_instance_init_check_id,
202          "need new_instance id");
203   _stub_id   = stub_id;
204 }
205 
206 
207 void NewInstanceStub::emit_code(LIR_Assembler* ce) {
208   assert(__ rsp_offset() == 0, "frame size should be fixed");
209   __ bind(_entry);
210   __ movptr(rdx, _klass_reg->as_register());
211   __ call(RuntimeAddress(Runtime1::entry_for(_stub_id)));

224   _result = result;
225   _info = new CodeEmitInfo(info);
226 }
227 
228 
229 void NewTypeArrayStub::emit_code(LIR_Assembler* ce) {
230   assert(__ rsp_offset() == 0, "frame size should be fixed");
231   __ bind(_entry);
232   assert(_length->as_register() == rbx, "length must in rbx,");
233   assert(_klass_reg->as_register() == rdx, "klass_reg must in rdx");
234   __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::new_type_array_id)));
235   ce->add_call_info_here(_info);
236   ce->verify_oop_map(_info);
237   assert(_result->as_register() == rax, "result must in rax,");
238   __ jmp(_continuation);
239 }
240 
241 
242 // Implementation of NewObjectArrayStub
243 
244 NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result,
245                                        CodeEmitInfo* info, bool is_null_free) {
246   _klass_reg = klass_reg;
247   _result = result;
248   _length = length;
249   _info = new CodeEmitInfo(info);
250   _is_null_free = is_null_free;
251 }
252 
253 
254 void NewObjectArrayStub::emit_code(LIR_Assembler* ce) {
255   assert(__ rsp_offset() == 0, "frame size should be fixed");
256   __ bind(_entry);
257   assert(_length->as_register() == rbx, "length must in rbx,");
258   assert(_klass_reg->as_register() == rdx, "klass_reg must in rdx");
259   if (_is_null_free) {
260     __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::new_null_free_array_id)));
261   } else {
262     __ call(RuntimeAddress(Runtime1::entry_for(C1StubId::new_object_array_id)));
263   }
264   ce->add_call_info_here(_info);
265   ce->verify_oop_map(_info);
266   assert(_result->as_register() == rax, "result must in rax,");
267   __ jmp(_continuation);
268 }
269 
270 void MonitorEnterStub::emit_code(LIR_Assembler* ce) {
271   assert(__ rsp_offset() == 0, "frame size should be fixed");
272   __ bind(_entry);
273   if (_throw_ie_stub != nullptr) {
274     // When we come here, _obj_reg has already been checked to be non-null.
275     const int is_value_mask = markWord::inline_type_pattern;
276     Register mark = _scratch_reg->as_register();
277     __ movptr(mark, Address(_obj_reg->as_register(), oopDesc::mark_offset_in_bytes()));
278     __ andptr(mark, is_value_mask);
279     __ cmpl(mark, is_value_mask);
280     __ jcc(Assembler::equal, *_throw_ie_stub->entry());
281   }
282   ce->store_parameter(_obj_reg->as_register(),  1);
283   ce->store_parameter(_lock_reg->as_register(), 0);
284   C1StubId enter_id;
285   if (ce->compilation()->has_fpu_code()) {
286     enter_id = C1StubId::monitorenter_id;
287   } else {
288     enter_id = C1StubId::monitorenter_nofpu_id;
289   }
290   __ call(RuntimeAddress(Runtime1::entry_for(enter_id)));
291   ce->add_call_info_here(_info);
292   ce->verify_oop_map(_info);
293   __ jmp(_continuation);
294 }
295 
296 
297 void MonitorExitStub::emit_code(LIR_Assembler* ce) {
298   __ bind(_entry);
299   if (_compute_lock) {
300     // lock_reg was destroyed by fast unlocking attempt => recompute it
301     ce->monitor_address(_monitor_ix, _lock_reg);
< prev index next >