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src/cpu/sparc/vm/interpreterRT_sparc.cpp@136b78722a08 (annotated)

src/cpu/sparc/vm/interpreterRT_sparc.cpp

Wed, 09 Jun 2010 18:50:45 -0700

author
jrose
date
Wed, 09 Jun 2010 18:50:45 -0700
changeset 1957
136b78722a08
parent 1907
c18cbe5936b8
child 2036
126ea7725993
permissions
-rw-r--r--

6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never

duke@435 1 /*
trims@1907 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
duke@435 25 #include "incls/_precompiled.incl"
duke@435 26 #include "incls/_interpreterRT_sparc.cpp.incl"
duke@435 27
duke@435 28
duke@435 29 #define __ _masm->
duke@435 30
duke@435 31
duke@435 32 // Implementation of SignatureHandlerGenerator
duke@435 33
duke@435 34 void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) {
duke@435 35 Argument jni_arg(jni_offset() + offset_in_arg, false);
duke@435 36 Register Rtmp = O0;
duke@435 37 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
duke@435 38
duke@435 39 __ store_argument(Rtmp, jni_arg);
duke@435 40 }
duke@435 41
duke@435 42 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
duke@435 43 Argument jni_arg(jni_offset(), false);
duke@435 44 Register Rtmp = O0;
duke@435 45
duke@435 46 #ifdef _LP64
duke@435 47 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
duke@435 48 __ store_long_argument(Rtmp, jni_arg);
duke@435 49 #else
duke@435 50 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
duke@435 51 __ store_argument(Rtmp, jni_arg);
duke@435 52 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp);
duke@435 53 Argument successor(jni_arg.successor());
duke@435 54 __ store_argument(Rtmp, successor);
duke@435 55 #endif
duke@435 56 }
duke@435 57
duke@435 58
duke@435 59 #ifdef _LP64
duke@435 60 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
duke@435 61 Argument jni_arg(jni_offset(), false);
duke@435 62 FloatRegister Rtmp = F0;
duke@435 63 __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
duke@435 64 __ store_float_argument(Rtmp, jni_arg);
duke@435 65 }
duke@435 66 #endif
duke@435 67
duke@435 68
duke@435 69 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
duke@435 70 Argument jni_arg(jni_offset(), false);
duke@435 71 #ifdef _LP64
duke@435 72 FloatRegister Rtmp = F0;
duke@435 73 __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
duke@435 74 __ store_double_argument(Rtmp, jni_arg);
duke@435 75 #else
duke@435 76 Register Rtmp = O0;
duke@435 77 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp);
duke@435 78 __ store_argument(Rtmp, jni_arg);
duke@435 79 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp);
duke@435 80 Argument successor(jni_arg.successor());
duke@435 81 __ store_argument(Rtmp, successor);
duke@435 82 #endif
duke@435 83 }
duke@435 84
duke@435 85 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
duke@435 86 Argument jni_arg(jni_offset(), false);
duke@435 87 Argument java_arg( offset(), true);
duke@435 88 Register Rtmp1 = O0;
duke@435 89 Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0;
duke@435 90 Register Rtmp3 = G3_scratch;
duke@435 91
duke@435 92 // the handle for a receiver will never be null
duke@435 93 bool do_NULL_check = offset() != 0 || is_static();
duke@435 94
twisti@1162 95 Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset()));
duke@435 96 __ ld_ptr(h_arg, Rtmp1);
duke@435 97 if (!do_NULL_check) {
twisti@1162 98 __ add(h_arg.base(), h_arg.disp(), Rtmp2);
duke@435 99 } else {
duke@435 100 if (Rtmp1 == Rtmp2)
duke@435 101 __ tst(Rtmp1);
duke@435 102 else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair
duke@435 103 Label L;
duke@435 104 __ brx(Assembler::notZero, true, Assembler::pt, L);
twisti@1162 105 __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2);
duke@435 106 __ bind(L);
duke@435 107 }
duke@435 108 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op
duke@435 109 }
duke@435 110
duke@435 111
duke@435 112 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
duke@435 113
duke@435 114 // generate code to handle arguments
duke@435 115 iterate(fingerprint);
duke@435 116
duke@435 117 // return result handler
twisti@1162 118 AddressLiteral result_handler(Interpreter::result_handler(method()->result_type()));
twisti@1162 119 __ sethi(result_handler, Lscratch);
duke@435 120 __ retl();
twisti@1162 121 __ delayed()->add(Lscratch, result_handler.low10(), Lscratch);
duke@435 122
duke@435 123 __ flush();
duke@435 124 }
duke@435 125
duke@435 126
duke@435 127 // Implementation of SignatureHandlerLibrary
duke@435 128
duke@435 129 void SignatureHandlerLibrary::pd_set_handler(address handler) {}
duke@435 130
duke@435 131
duke@435 132 class SlowSignatureHandler: public NativeSignatureIterator {
duke@435 133 private:
duke@435 134 address _from;
duke@435 135 intptr_t* _to;
duke@435 136 intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers
duke@435 137 uint _argcount;
duke@435 138
duke@435 139 enum { // We need to differenciate float from non floats in reg args
duke@435 140 non_float = 0,
duke@435 141 float_sig = 1,
duke@435 142 double_sig = 2,
duke@435 143 long_sig = 3
duke@435 144 };
duke@435 145
duke@435 146 virtual void pass_int() {
duke@435 147 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
twisti@1861 148 _from -= Interpreter::stackElementSize;
duke@435 149 add_signature( non_float );
duke@435 150 }
duke@435 151
duke@435 152 virtual void pass_object() {
duke@435 153 // pass address of from
duke@435 154 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
duke@435 155 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
twisti@1861 156 _from -= Interpreter::stackElementSize;
duke@435 157 add_signature( non_float );
duke@435 158 }
duke@435 159
duke@435 160 #ifdef _LP64
duke@435 161 virtual void pass_float() {
duke@435 162 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
twisti@1861 163 _from -= Interpreter::stackElementSize;
duke@435 164 add_signature( float_sig );
duke@435 165 }
duke@435 166
duke@435 167 virtual void pass_double() {
duke@435 168 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
twisti@1861 169 _from -= 2*Interpreter::stackElementSize;
duke@435 170 add_signature( double_sig );
duke@435 171 }
duke@435 172
duke@435 173 virtual void pass_long() {
duke@435 174 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
duke@435 175 _to += 1;
twisti@1861 176 _from -= 2*Interpreter::stackElementSize;
duke@435 177 add_signature( long_sig );
duke@435 178 }
duke@435 179 #else
duke@435 180 // pass_double() is pass_long() and pass_float() only _LP64
duke@435 181 virtual void pass_long() {
duke@435 182 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
duke@435 183 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
duke@435 184 _to += 2;
twisti@1861 185 _from -= 2*Interpreter::stackElementSize;
duke@435 186 add_signature( non_float );
duke@435 187 }
duke@435 188 #endif // _LP64
duke@435 189
duke@435 190 virtual void add_signature( intptr_t sig_type ) {
duke@435 191 if ( _argcount < (sizeof (intptr_t))*4 ) {
duke@435 192 *_RegArgSignature |= (sig_type << (_argcount*2) );
duke@435 193 _argcount++;
duke@435 194 }
duke@435 195 }
duke@435 196
duke@435 197
duke@435 198 public:
duke@435 199 SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) {
duke@435 200 _from = from;
duke@435 201 _to = to;
duke@435 202 _RegArgSignature = RegArgSig;
duke@435 203 *_RegArgSignature = 0;
duke@435 204 _argcount = method->is_static() ? 2 : 1;
duke@435 205 }
duke@435 206 };
duke@435 207
duke@435 208
duke@435 209 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(
duke@435 210 JavaThread* thread,
duke@435 211 methodOopDesc* method,
duke@435 212 intptr_t* from,
duke@435 213 intptr_t* to ))
duke@435 214 methodHandle m(thread, method);
duke@435 215 assert(m->is_native(), "sanity check");
duke@435 216 // handle arguments
duke@435 217 // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature
duke@435 218 // back to the code that pops the arguments into the CPU registers
duke@435 219 SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1));
duke@435 220 // return result handler
duke@435 221 return Interpreter::result_handler(m->result_type());
duke@435 222 IRT_END

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