Mercurial > hg > graal-compiler
comparison src/cpu/x86/vm/interpreterRT_x86_32.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | dc7f315e41f7 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_interpreterRT_x86_32.cpp.incl" | |
27 | |
28 | |
29 #define __ _masm-> | |
30 | |
31 | |
32 // Implementation of SignatureHandlerGenerator | |
33 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { | |
34 move(offset(), jni_offset() + 1); | |
35 } | |
36 | |
37 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { | |
38 move(offset(), jni_offset() + 2); | |
39 move(offset() + 1, jni_offset() + 1); | |
40 } | |
41 | |
42 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { | |
43 box (offset(), jni_offset() + 1); | |
44 } | |
45 | |
46 void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) { | |
47 __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset))); | |
48 __ movl(Address(to(), to_offset * wordSize), temp()); | |
49 } | |
50 | |
51 | |
52 void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) { | |
53 __ leal(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset))); | |
54 __ cmpl(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), 0); // do not use temp() to avoid AGI | |
55 Label L; | |
56 __ jcc(Assembler::notZero, L); | |
57 __ movl(temp(), 0); | |
58 __ bind(L); | |
59 __ movl(Address(to(), to_offset * wordSize), temp()); | |
60 } | |
61 | |
62 | |
63 void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) { | |
64 // generate code to handle arguments | |
65 iterate(fingerprint); | |
66 // return result handler | |
67 __ lea(rax, | |
68 ExternalAddress((address)Interpreter::result_handler(method()->result_type()))); | |
69 // return | |
70 __ ret(0); | |
71 __ flush(); | |
72 } | |
73 | |
74 | |
75 Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rdi; } | |
76 Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; } | |
77 Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rcx; } | |
78 | |
79 | |
80 // Implementation of SignatureHandlerLibrary | |
81 | |
82 void SignatureHandlerLibrary::pd_set_handler(address handler) {} | |
83 | |
84 class SlowSignatureHandler: public NativeSignatureIterator { | |
85 private: | |
86 address _from; | |
87 intptr_t* _to; | |
88 | |
89 #ifdef ASSERT | |
90 void verify_tag(frame::Tag t) { | |
91 assert(!TaggedStackInterpreter || | |
92 *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag"); | |
93 } | |
94 #endif // ASSERT | |
95 | |
96 virtual void pass_int() { | |
97 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
98 debug_only(verify_tag(frame::TagValue)); | |
99 _from -= Interpreter::stackElementSize(); | |
100 } | |
101 | |
102 virtual void pass_long() { | |
103 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
104 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); | |
105 debug_only(verify_tag(frame::TagValue)); | |
106 _to += 2; | |
107 _from -= 2*Interpreter::stackElementSize(); | |
108 } | |
109 | |
110 virtual void pass_object() { | |
111 // pass address of from | |
112 intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0)); | |
113 *_to++ = (*(intptr_t*)from_addr == 0) ? NULL : from_addr; | |
114 debug_only(verify_tag(frame::TagReference)); | |
115 _from -= Interpreter::stackElementSize(); | |
116 } | |
117 | |
118 public: | |
119 SlowSignatureHandler(methodHandle method, address from, intptr_t* to) : | |
120 NativeSignatureIterator(method) { | |
121 _from = from; | |
122 _to = to + (is_static() ? 2 : 1); | |
123 } | |
124 }; | |
125 | |
126 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* thread, methodOopDesc* method, intptr_t* from, intptr_t* to)) | |
127 methodHandle m(thread, (methodOop)method); | |
128 assert(m->is_native(), "sanity check"); | |
129 // handle arguments | |
130 SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1)); | |
131 // return result handler | |
132 return Interpreter::result_handler(m->result_type()); | |
133 IRT_END |