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src/hotspot/cpu/x86/interpreterRT_x86_32.cpp

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 54 #endif // AMD64
 55 }
 56 
 57 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
 58   move(offset(), jni_offset() + 1);
 59 }
 60 
 61 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
 62   move(offset(), jni_offset() + 1);
 63 }
 64 
 65 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
 66    move(offset(), jni_offset() + 2);
 67    move(offset() + 1, jni_offset() + 1);
 68 }
 69 
 70 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
 71   box (offset(), jni_offset() + 1);
 72 }
 73 




 74 void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {
 75   __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
 76   __ movl(Address(to(), to_offset * wordSize), temp());
 77 }
 78 
 79 
 80 void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {
 81   __ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
 82   __ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI
 83   Label L;
 84   __ jcc(Assembler::notZero, L);
 85   __ movptr(temp(), NULL_WORD);
 86   __ bind(L);
 87   __ movptr(Address(to(), to_offset * wordSize), temp());
 88 }
 89 
 90 
 91 void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) {
 92   // generate code to handle arguments
 93   iterate(fingerprint);

121 
122   virtual void pass_float() {
123     *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
124     _from -= Interpreter::stackElementSize;
125   }
126 
127   virtual void pass_long() {
128     _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
129     _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
130     _to += 2;
131     _from -= 2*Interpreter::stackElementSize;
132   }
133 
134   virtual void pass_object() {
135     // pass address of from
136     intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
137     *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
138     _from -= Interpreter::stackElementSize;
139    }
140 







141  public:
142   SlowSignatureHandler(const methodHandle& method, address from, intptr_t* to) :
143     NativeSignatureIterator(method) {
144     _from = from;
145     _to   = to + (is_static() ? 2 : 1);
146   }
147 };
148 
149 JRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* current, Method* method, intptr_t* from, intptr_t* to))
150   methodHandle m(current, (Method*)method);
151   assert(m->is_native(), "sanity check");
152   // handle arguments
153   SlowSignatureHandler(m, (address)from, to + 1).iterate((uint64_t)CONST64(-1));
154   // return result handler
155   return Interpreter::result_handler(m->result_type());
156 JRT_END

 54 #endif // AMD64
 55 }
 56 
 57 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
 58   move(offset(), jni_offset() + 1);
 59 }
 60 
 61 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
 62   move(offset(), jni_offset() + 1);
 63 }
 64 
 65 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
 66    move(offset(), jni_offset() + 2);
 67    move(offset() + 1, jni_offset() + 1);
 68 }
 69 
 70 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
 71   box (offset(), jni_offset() + 1);
 72 }
 73 
 74 void InterpreterRuntime::SignatureHandlerGenerator::pass_valuetype() {
 75   box (offset(), jni_offset() + 1);
 76 }
 77 
 78 void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {
 79   __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
 80   __ movl(Address(to(), to_offset * wordSize), temp());
 81 }
 82 
 83 
 84 void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {
 85   __ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
 86   __ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI
 87   Label L;
 88   __ jcc(Assembler::notZero, L);
 89   __ movptr(temp(), NULL_WORD);
 90   __ bind(L);
 91   __ movptr(Address(to(), to_offset * wordSize), temp());
 92 }
 93 
 94 
 95 void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) {
 96   // generate code to handle arguments
 97   iterate(fingerprint);

125 
126   virtual void pass_float() {
127     *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
128     _from -= Interpreter::stackElementSize;
129   }
130 
131   virtual void pass_long() {
132     _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
133     _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
134     _to += 2;
135     _from -= 2*Interpreter::stackElementSize;
136   }
137 
138   virtual void pass_object() {
139     // pass address of from
140     intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
141     *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
142     _from -= Interpreter::stackElementSize;
143    }
144 
145   virtual void pass_valuetype() {
146     // pass address of from
147     intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
148     *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
149     _from -= Interpreter::stackElementSize;
150    }
151 
152  public:
153   SlowSignatureHandler(const methodHandle& method, address from, intptr_t* to) :
154     NativeSignatureIterator(method) {
155     _from = from;
156     _to   = to + (is_static() ? 2 : 1);
157   }
158 };
159 
160 JRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* current, Method* method, intptr_t* from, intptr_t* to))
161   methodHandle m(current, (Method*)method);
162   assert(m->is_native(), "sanity check");
163   // handle arguments
164   SlowSignatureHandler(m, (address)from, to + 1).iterate((uint64_t)CONST64(-1));
165   // return result handler
166   return Interpreter::result_handler(m->result_type());
167 JRT_END
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