Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/stubRoutines.hpp @ 1782:f353275af40e
6981773: incorrect fill value with OptimizeFill
Reviewed-by: kvn, twisti
author | never |
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date | Thu, 02 Sep 2010 11:40:02 -0700 |
parents | d6f45b55c972 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1997, 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 // StubRoutines provides entry points to assembly routines used by | |
26 // compiled code and the run-time system. Platform-specific entry | |
27 // points are defined in the platform-specific inner class. | |
28 // | |
29 // Class scheme: | |
30 // | |
31 // platform-independent platform-dependent | |
32 // | |
33 // stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp | |
34 // ^ ^ | |
35 // | | | |
36 // implements implements | |
37 // | | | |
38 // | | | |
39 // stubRoutines.cpp stubRoutines_<arch>.cpp | |
40 // stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp | |
41 // stubRoutines_<os_arch>.cpp | |
42 // | |
43 // Note 1: The important thing is a clean decoupling between stub | |
44 // entry points (interfacing to the whole vm; i.e., 1-to-n | |
45 // relationship) and stub generators (interfacing only to | |
46 // the entry points implementation; i.e., 1-to-1 relationship). | |
47 // This significantly simplifies changes in the generator | |
48 // structure since the rest of the vm is not affected. | |
49 // | |
50 // Note 2: stubGenerator_<arch>.cpp contains a minimal portion of | |
51 // machine-independent code; namely the generator calls of | |
52 // the generator functions that are used platform-independently. | |
53 // However, it comes with the advantage of having a 1-file | |
54 // implementation of the generator. It should be fairly easy | |
55 // to change, should it become a problem later. | |
56 // | |
57 // Scheme for adding a new entry point: | |
58 // | |
59 // 1. determine if it's a platform-dependent or independent entry point | |
60 // a) if platform independent: make subsequent changes in the independent files | |
61 // b) if platform dependent: make subsequent changes in the dependent files | |
62 // 2. add a private instance variable holding the entry point address | |
63 // 3. add a public accessor function to the instance variable | |
64 // 4. implement the corresponding generator function in the platform-dependent | |
65 // stubGenerator_<arch>.cpp file and call the function in generate_all() of that file | |
66 | |
67 | |
68 class StubRoutines: AllStatic { | |
69 | |
70 public: | |
71 enum platform_independent_constants { | |
72 max_size_of_parameters = 256 // max. parameter size supported by megamorphic lookups | |
73 }; | |
74 | |
75 // Dependencies | |
76 friend class StubGenerator; | |
77 #include "incls/_stubRoutines_pd.hpp.incl" // machine-specific parts | |
78 | |
79 static jint _verify_oop_count; | |
80 static address _verify_oop_subroutine_entry; | |
81 | |
82 static address _call_stub_return_address; // the return PC, when returning to a call stub | |
83 static address _call_stub_entry; | |
84 static address _forward_exception_entry; | |
85 static address _catch_exception_entry; | |
86 static address _throw_AbstractMethodError_entry; | |
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87 static address _throw_IncompatibleClassChangeError_entry; |
0 | 88 static address _throw_ArithmeticException_entry; |
89 static address _throw_NullPointerException_entry; | |
90 static address _throw_NullPointerException_at_call_entry; | |
91 static address _throw_StackOverflowError_entry; | |
92 static address _handler_for_unsafe_access_entry; | |
93 | |
94 static address _atomic_xchg_entry; | |
95 static address _atomic_xchg_ptr_entry; | |
96 static address _atomic_store_entry; | |
97 static address _atomic_store_ptr_entry; | |
98 static address _atomic_cmpxchg_entry; | |
99 static address _atomic_cmpxchg_ptr_entry; | |
100 static address _atomic_cmpxchg_long_entry; | |
101 static address _atomic_add_entry; | |
102 static address _atomic_add_ptr_entry; | |
103 static address _fence_entry; | |
104 static address _d2i_wrapper; | |
105 static address _d2l_wrapper; | |
106 | |
107 static jint _fpu_cntrl_wrd_std; | |
108 static jint _fpu_cntrl_wrd_24; | |
109 static jint _fpu_cntrl_wrd_64; | |
110 static jint _fpu_cntrl_wrd_trunc; | |
111 static jint _mxcsr_std; | |
112 static jint _fpu_subnormal_bias1[3]; | |
113 static jint _fpu_subnormal_bias2[3]; | |
114 | |
115 static BufferBlob* _code1; // code buffer for initial routines | |
116 static BufferBlob* _code2; // code buffer for all other routines | |
117 | |
118 // Leaf routines which implement arraycopy and their addresses | |
119 // arraycopy operands aligned on element type boundary | |
120 static address _jbyte_arraycopy; | |
121 static address _jshort_arraycopy; | |
122 static address _jint_arraycopy; | |
123 static address _jlong_arraycopy; | |
124 static address _oop_arraycopy; | |
125 static address _jbyte_disjoint_arraycopy; | |
126 static address _jshort_disjoint_arraycopy; | |
127 static address _jint_disjoint_arraycopy; | |
128 static address _jlong_disjoint_arraycopy; | |
129 static address _oop_disjoint_arraycopy; | |
130 | |
131 // arraycopy operands aligned on zero'th element boundary | |
132 // These are identical to the ones aligned aligned on an | |
133 // element type boundary, except that they assume that both | |
134 // source and destination are HeapWord aligned. | |
135 static address _arrayof_jbyte_arraycopy; | |
136 static address _arrayof_jshort_arraycopy; | |
137 static address _arrayof_jint_arraycopy; | |
138 static address _arrayof_jlong_arraycopy; | |
139 static address _arrayof_oop_arraycopy; | |
140 static address _arrayof_jbyte_disjoint_arraycopy; | |
141 static address _arrayof_jshort_disjoint_arraycopy; | |
142 static address _arrayof_jint_disjoint_arraycopy; | |
143 static address _arrayof_jlong_disjoint_arraycopy; | |
144 static address _arrayof_oop_disjoint_arraycopy; | |
145 | |
146 // these are recommended but optional: | |
147 static address _checkcast_arraycopy; | |
148 static address _unsafe_arraycopy; | |
149 static address _generic_arraycopy; | |
150 | |
1763 | 151 static address _jbyte_fill; |
152 static address _jshort_fill; | |
153 static address _jint_fill; | |
154 static address _arrayof_jbyte_fill; | |
155 static address _arrayof_jshort_fill; | |
156 static address _arrayof_jint_fill; | |
157 | |
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158 // These are versions of the java.lang.Math methods which perform |
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159 // the same operations as the intrinsic version. They are used for |
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160 // constant folding in the compiler to ensure equivalence. If the |
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161 // intrinsic version returns the same result as the strict version |
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162 // then they can be set to the appropriate function from |
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163 // SharedRuntime. |
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164 static double (*_intrinsic_log)(double); |
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165 static double (*_intrinsic_log10)(double); |
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166 static double (*_intrinsic_exp)(double); |
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167 static double (*_intrinsic_pow)(double, double); |
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168 static double (*_intrinsic_sin)(double); |
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169 static double (*_intrinsic_cos)(double); |
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170 static double (*_intrinsic_tan)(double); |
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171 |
0 | 172 public: |
173 // Initialization/Testing | |
174 static void initialize1(); // must happen before universe::genesis | |
175 static void initialize2(); // must happen after universe::genesis | |
176 | |
177 static bool contains(address addr) { | |
178 return | |
179 (_code1 != NULL && _code1->blob_contains(addr)) || | |
180 (_code2 != NULL && _code2->blob_contains(addr)) ; | |
181 } | |
182 | |
183 // Debugging | |
184 static jint verify_oop_count() { return _verify_oop_count; } | |
185 static jint* verify_oop_count_addr() { return &_verify_oop_count; } | |
186 // a subroutine for debugging the GC | |
187 static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } | |
188 | |
189 static address catch_exception_entry() { return _catch_exception_entry; } | |
190 | |
191 // Calls to Java | |
192 typedef void (*CallStub)( | |
193 address link, | |
194 intptr_t* result, | |
195 BasicType result_type, | |
196 methodOopDesc* method, | |
197 address entry_point, | |
198 intptr_t* parameters, | |
199 int size_of_parameters, | |
200 TRAPS | |
201 ); | |
202 | |
203 static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } | |
204 | |
205 // Exceptions | |
206 static address forward_exception_entry() { return _forward_exception_entry; } | |
207 // Implicit exceptions | |
208 static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; } | |
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209 static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; } |
0 | 210 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } |
211 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } | |
212 static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; } | |
213 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
214 | |
215 // Exceptions during unsafe access - should throw Java exception rather | |
216 // than crash. | |
217 static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; } | |
218 | |
219 static address atomic_xchg_entry() { return _atomic_xchg_entry; } | |
220 static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; } | |
221 static address atomic_store_entry() { return _atomic_store_entry; } | |
222 static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; } | |
223 static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } | |
224 static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; } | |
225 static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } | |
226 static address atomic_add_entry() { return _atomic_add_entry; } | |
227 static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; } | |
228 static address fence_entry() { return _fence_entry; } | |
229 | |
230 static address d2i_wrapper() { return _d2i_wrapper; } | |
231 static address d2l_wrapper() { return _d2l_wrapper; } | |
232 static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; } | |
233 static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; } | |
234 static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; } | |
235 static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; } | |
236 static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; } | |
237 static address addr_mxcsr_std() { return (address)&_mxcsr_std; } | |
238 static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; } | |
239 static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; } | |
240 | |
241 | |
242 static address jbyte_arraycopy() { return _jbyte_arraycopy; } | |
243 static address jshort_arraycopy() { return _jshort_arraycopy; } | |
244 static address jint_arraycopy() { return _jint_arraycopy; } | |
245 static address jlong_arraycopy() { return _jlong_arraycopy; } | |
246 static address oop_arraycopy() { return _oop_arraycopy; } | |
247 static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } | |
248 static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } | |
249 static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } | |
250 static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } | |
251 static address oop_disjoint_arraycopy() { return _oop_disjoint_arraycopy; } | |
252 | |
253 static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } | |
254 static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } | |
255 static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } | |
256 static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } | |
257 static address arrayof_oop_arraycopy() { return _arrayof_oop_arraycopy; } | |
258 | |
259 static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } | |
260 static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } | |
261 static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } | |
262 static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } | |
263 static address arrayof_oop_disjoint_arraycopy() { return _arrayof_oop_disjoint_arraycopy; } | |
264 | |
265 static address checkcast_arraycopy() { return _checkcast_arraycopy; } | |
266 static address unsafe_arraycopy() { return _unsafe_arraycopy; } | |
267 static address generic_arraycopy() { return _generic_arraycopy; } | |
268 | |
1763 | 269 static address jbyte_fill() { return _jbyte_fill; } |
270 static address jshort_fill() { return _jshort_fill; } | |
271 static address jint_fill() { return _jint_fill; } | |
272 static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; } | |
273 static address arrayof_jshort_fill() { return _arrayof_jshort_fill; } | |
274 static address arrayof_jint_fill() { return _arrayof_jint_fill; } | |
275 | |
276 static address select_fill_function(BasicType t, bool aligned, const char* &name); | |
277 | |
278 | |
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279 static double intrinsic_log(double d) { |
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280 assert(_intrinsic_log != NULL, "must be defined"); |
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281 return _intrinsic_log(d); |
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282 } |
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283 static double intrinsic_log10(double d) { |
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284 assert(_intrinsic_log != NULL, "must be defined"); |
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285 return _intrinsic_log10(d); |
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286 } |
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287 static double intrinsic_exp(double d) { |
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288 assert(_intrinsic_exp != NULL, "must be defined"); |
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289 return _intrinsic_exp(d); |
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290 } |
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291 static double intrinsic_pow(double d, double d2) { |
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292 assert(_intrinsic_pow != NULL, "must be defined"); |
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293 return _intrinsic_pow(d, d2); |
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294 } |
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295 static double intrinsic_sin(double d) { |
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296 assert(_intrinsic_sin != NULL, "must be defined"); |
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297 return _intrinsic_sin(d); |
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298 } |
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299 static double intrinsic_cos(double d) { |
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300 assert(_intrinsic_cos != NULL, "must be defined"); |
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301 return _intrinsic_cos(d); |
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302 } |
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303 static double intrinsic_tan(double d) { |
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304 assert(_intrinsic_tan != NULL, "must be defined"); |
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305 return _intrinsic_tan(d); |
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306 } |
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307 |
0 | 308 // |
309 // Default versions of the above arraycopy functions for platforms which do | |
310 // not have specialized versions | |
311 // | |
312 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); | |
313 static void jshort_copy(jshort* src, jshort* dest, size_t count); | |
314 static void jint_copy (jint* src, jint* dest, size_t count); | |
315 static void jlong_copy (jlong* src, jlong* dest, size_t count); | |
316 static void oop_copy (oop* src, oop* dest, size_t count); | |
317 | |
318 static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); | |
319 static void arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count); | |
320 static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); | |
321 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); | |
322 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); | |
323 }; |