Mercurial > hg > truffle
annotate src/cpu/sparc/vm/interpreterRT_sparc.cpp @ 1954:e3e1fb85e50a
Merge
author | jmasa |
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date | Mon, 15 Nov 2010 16:25:14 -0800 |
parents | 126ea7725993 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_interpreterRT_sparc.cpp.incl" | |
27 | |
28 | |
29 #define __ _masm-> | |
30 | |
31 | |
32 // Implementation of SignatureHandlerGenerator | |
33 | |
34 void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) { | |
35 Argument jni_arg(jni_offset() + offset_in_arg, false); | |
36 Register Rtmp = O0; | |
37 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
38 | |
39 __ store_argument(Rtmp, jni_arg); | |
40 } | |
41 | |
42 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { | |
43 Argument jni_arg(jni_offset(), false); | |
44 Register Rtmp = O0; | |
45 | |
46 #ifdef _LP64 | |
47 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
48 __ store_long_argument(Rtmp, jni_arg); | |
49 #else | |
50 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
51 __ store_argument(Rtmp, jni_arg); | |
52 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); | |
53 Argument successor(jni_arg.successor()); | |
54 __ store_argument(Rtmp, successor); | |
55 #endif | |
56 } | |
57 | |
58 | |
59 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { | |
60 Argument jni_arg(jni_offset(), false); | |
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61 #ifdef _LP64 |
0 | 62 FloatRegister Rtmp = F0; |
63 __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
64 __ store_float_argument(Rtmp, jni_arg); | |
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65 #else |
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66 Register Rtmp = O0; |
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67 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
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68 __ store_argument(Rtmp, jni_arg); |
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69 #endif |
0 | 70 } |
71 | |
72 | |
73 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { | |
74 Argument jni_arg(jni_offset(), false); | |
75 #ifdef _LP64 | |
76 FloatRegister Rtmp = F0; | |
77 __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
78 __ store_double_argument(Rtmp, jni_arg); | |
79 #else | |
80 Register Rtmp = O0; | |
81 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
82 __ store_argument(Rtmp, jni_arg); | |
83 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
84 Argument successor(jni_arg.successor()); | |
85 __ store_argument(Rtmp, successor); | |
86 #endif | |
87 } | |
88 | |
89 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { | |
90 Argument jni_arg(jni_offset(), false); | |
91 Argument java_arg( offset(), true); | |
92 Register Rtmp1 = O0; | |
93 Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0; | |
94 Register Rtmp3 = G3_scratch; | |
95 | |
96 // the handle for a receiver will never be null | |
97 bool do_NULL_check = offset() != 0 || is_static(); | |
98 | |
727 | 99 Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); |
0 | 100 __ ld_ptr(h_arg, Rtmp1); |
101 if (!do_NULL_check) { | |
727 | 102 __ add(h_arg.base(), h_arg.disp(), Rtmp2); |
0 | 103 } else { |
104 if (Rtmp1 == Rtmp2) | |
105 __ tst(Rtmp1); | |
106 else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair | |
107 Label L; | |
108 __ brx(Assembler::notZero, true, Assembler::pt, L); | |
727 | 109 __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); |
0 | 110 __ bind(L); |
111 } | |
112 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op | |
113 } | |
114 | |
115 | |
116 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { | |
117 | |
118 // generate code to handle arguments | |
119 iterate(fingerprint); | |
120 | |
121 // return result handler | |
727 | 122 AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); |
123 __ sethi(result_handler, Lscratch); | |
0 | 124 __ retl(); |
727 | 125 __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); |
0 | 126 |
127 __ flush(); | |
128 } | |
129 | |
130 | |
131 // Implementation of SignatureHandlerLibrary | |
132 | |
133 void SignatureHandlerLibrary::pd_set_handler(address handler) {} | |
134 | |
135 | |
136 class SlowSignatureHandler: public NativeSignatureIterator { | |
137 private: | |
138 address _from; | |
139 intptr_t* _to; | |
140 intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers | |
141 uint _argcount; | |
142 | |
143 enum { // We need to differenciate float from non floats in reg args | |
144 non_float = 0, | |
145 float_sig = 1, | |
146 double_sig = 2, | |
147 long_sig = 3 | |
148 }; | |
149 | |
150 virtual void pass_int() { | |
151 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
1506 | 152 _from -= Interpreter::stackElementSize; |
0 | 153 add_signature( non_float ); |
154 } | |
155 | |
156 virtual void pass_object() { | |
157 // pass address of from | |
158 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); | |
159 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; | |
1506 | 160 _from -= Interpreter::stackElementSize; |
0 | 161 add_signature( non_float ); |
162 } | |
163 | |
164 #ifdef _LP64 | |
165 virtual void pass_float() { | |
166 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
1506 | 167 _from -= Interpreter::stackElementSize; |
0 | 168 add_signature( float_sig ); |
169 } | |
170 | |
171 virtual void pass_double() { | |
172 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
1506 | 173 _from -= 2*Interpreter::stackElementSize; |
0 | 174 add_signature( double_sig ); |
175 } | |
176 | |
177 virtual void pass_long() { | |
178 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
179 _to += 1; | |
1506 | 180 _from -= 2*Interpreter::stackElementSize; |
0 | 181 add_signature( long_sig ); |
182 } | |
183 #else | |
184 // pass_double() is pass_long() and pass_float() only _LP64 | |
185 virtual void pass_long() { | |
186 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
187 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); | |
188 _to += 2; | |
1506 | 189 _from -= 2*Interpreter::stackElementSize; |
0 | 190 add_signature( non_float ); |
191 } | |
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192 |
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193 virtual void pass_float() { |
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194 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
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195 _from -= Interpreter::stackElementSize; |
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196 add_signature( non_float ); |
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197 } |
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198 |
0 | 199 #endif // _LP64 |
200 | |
201 virtual void add_signature( intptr_t sig_type ) { | |
202 if ( _argcount < (sizeof (intptr_t))*4 ) { | |
203 *_RegArgSignature |= (sig_type << (_argcount*2) ); | |
204 _argcount++; | |
205 } | |
206 } | |
207 | |
208 | |
209 public: | |
210 SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { | |
211 _from = from; | |
212 _to = to; | |
213 _RegArgSignature = RegArgSig; | |
214 *_RegArgSignature = 0; | |
215 _argcount = method->is_static() ? 2 : 1; | |
216 } | |
217 }; | |
218 | |
219 | |
220 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( | |
221 JavaThread* thread, | |
222 methodOopDesc* method, | |
223 intptr_t* from, | |
224 intptr_t* to )) | |
225 methodHandle m(thread, method); | |
226 assert(m->is_native(), "sanity check"); | |
227 // handle arguments | |
228 // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature | |
229 // back to the code that pops the arguments into the CPU registers | |
230 SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); | |
231 // return result handler | |
232 return Interpreter::result_handler(m->result_type()); | |
233 IRT_END |