Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/stubRoutines.hpp @ 1174:ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
Reviewed-by: kvn, twisti
| author | never |
|---|---|
| date | Fri, 15 Jan 2010 11:53:33 -0800 |
| parents | f8236e79048a |
| children | c18cbe5936b8 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright 1997-2010 Sun Microsystems, Inc. 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 * | |
| 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 // 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 | |
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151 // These are versions of the java.lang.Math methods which perform |
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152 // the same operations as the intrinsic version. They are used for |
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153 // constant folding in the compiler to ensure equivalence. If the |
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154 // intrinsic version returns the same result as the strict version |
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155 // then they can be set to the appropriate function from |
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156 // SharedRuntime. |
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157 static double (*_intrinsic_log)(double); |
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158 static double (*_intrinsic_log10)(double); |
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159 static double (*_intrinsic_exp)(double); |
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160 static double (*_intrinsic_pow)(double, double); |
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161 static double (*_intrinsic_sin)(double); |
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162 static double (*_intrinsic_cos)(double); |
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163 static double (*_intrinsic_tan)(double); |
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164 |
| 0 | 165 public: |
| 166 // Initialization/Testing | |
| 167 static void initialize1(); // must happen before universe::genesis | |
| 168 static void initialize2(); // must happen after universe::genesis | |
| 169 | |
| 170 static bool contains(address addr) { | |
| 171 return | |
| 172 (_code1 != NULL && _code1->blob_contains(addr)) || | |
| 173 (_code2 != NULL && _code2->blob_contains(addr)) ; | |
| 174 } | |
| 175 | |
| 176 // Debugging | |
| 177 static jint verify_oop_count() { return _verify_oop_count; } | |
| 178 static jint* verify_oop_count_addr() { return &_verify_oop_count; } | |
| 179 // a subroutine for debugging the GC | |
| 180 static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } | |
| 181 | |
| 182 static address catch_exception_entry() { return _catch_exception_entry; } | |
| 183 | |
| 184 // Calls to Java | |
| 185 typedef void (*CallStub)( | |
| 186 address link, | |
| 187 intptr_t* result, | |
| 188 BasicType result_type, | |
| 189 methodOopDesc* method, | |
| 190 address entry_point, | |
| 191 intptr_t* parameters, | |
| 192 int size_of_parameters, | |
| 193 TRAPS | |
| 194 ); | |
| 195 | |
| 196 static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } | |
| 197 | |
| 198 // Exceptions | |
| 199 static address forward_exception_entry() { return _forward_exception_entry; } | |
| 200 // Implicit exceptions | |
| 201 static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; } | |
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202 static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; } |
| 0 | 203 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } |
| 204 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } | |
| 205 static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; } | |
| 206 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
| 207 | |
| 208 // Exceptions during unsafe access - should throw Java exception rather | |
| 209 // than crash. | |
| 210 static address handler_for_unsafe_access() { return _handler_for_unsafe_access_entry; } | |
| 211 | |
| 212 static address atomic_xchg_entry() { return _atomic_xchg_entry; } | |
| 213 static address atomic_xchg_ptr_entry() { return _atomic_xchg_ptr_entry; } | |
| 214 static address atomic_store_entry() { return _atomic_store_entry; } | |
| 215 static address atomic_store_ptr_entry() { return _atomic_store_ptr_entry; } | |
| 216 static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } | |
| 217 static address atomic_cmpxchg_ptr_entry() { return _atomic_cmpxchg_ptr_entry; } | |
| 218 static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } | |
| 219 static address atomic_add_entry() { return _atomic_add_entry; } | |
| 220 static address atomic_add_ptr_entry() { return _atomic_add_ptr_entry; } | |
| 221 static address fence_entry() { return _fence_entry; } | |
| 222 | |
| 223 static address d2i_wrapper() { return _d2i_wrapper; } | |
| 224 static address d2l_wrapper() { return _d2l_wrapper; } | |
| 225 static jint fpu_cntrl_wrd_std() { return _fpu_cntrl_wrd_std; } | |
| 226 static address addr_fpu_cntrl_wrd_std() { return (address)&_fpu_cntrl_wrd_std; } | |
| 227 static address addr_fpu_cntrl_wrd_24() { return (address)&_fpu_cntrl_wrd_24; } | |
| 228 static address addr_fpu_cntrl_wrd_64() { return (address)&_fpu_cntrl_wrd_64; } | |
| 229 static address addr_fpu_cntrl_wrd_trunc() { return (address)&_fpu_cntrl_wrd_trunc; } | |
| 230 static address addr_mxcsr_std() { return (address)&_mxcsr_std; } | |
| 231 static address addr_fpu_subnormal_bias1() { return (address)&_fpu_subnormal_bias1; } | |
| 232 static address addr_fpu_subnormal_bias2() { return (address)&_fpu_subnormal_bias2; } | |
| 233 | |
| 234 | |
| 235 static address jbyte_arraycopy() { return _jbyte_arraycopy; } | |
| 236 static address jshort_arraycopy() { return _jshort_arraycopy; } | |
| 237 static address jint_arraycopy() { return _jint_arraycopy; } | |
| 238 static address jlong_arraycopy() { return _jlong_arraycopy; } | |
| 239 static address oop_arraycopy() { return _oop_arraycopy; } | |
| 240 static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } | |
| 241 static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } | |
| 242 static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } | |
| 243 static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } | |
| 244 static address oop_disjoint_arraycopy() { return _oop_disjoint_arraycopy; } | |
| 245 | |
| 246 static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } | |
| 247 static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } | |
| 248 static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } | |
| 249 static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } | |
| 250 static address arrayof_oop_arraycopy() { return _arrayof_oop_arraycopy; } | |
| 251 | |
| 252 static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } | |
| 253 static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } | |
| 254 static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } | |
| 255 static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } | |
| 256 static address arrayof_oop_disjoint_arraycopy() { return _arrayof_oop_disjoint_arraycopy; } | |
| 257 | |
| 258 static address checkcast_arraycopy() { return _checkcast_arraycopy; } | |
| 259 static address unsafe_arraycopy() { return _unsafe_arraycopy; } | |
| 260 static address generic_arraycopy() { return _generic_arraycopy; } | |
| 261 | |
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262 static double intrinsic_log(double d) { |
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263 assert(_intrinsic_log != NULL, "must be defined"); |
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264 return _intrinsic_log(d); |
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265 } |
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266 static double intrinsic_log10(double d) { |
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267 assert(_intrinsic_log != NULL, "must be defined"); |
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268 return _intrinsic_log10(d); |
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269 } |
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270 static double intrinsic_exp(double d) { |
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271 assert(_intrinsic_exp != NULL, "must be defined"); |
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272 return _intrinsic_exp(d); |
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273 } |
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274 static double intrinsic_pow(double d, double d2) { |
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275 assert(_intrinsic_pow != NULL, "must be defined"); |
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276 return _intrinsic_pow(d, d2); |
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277 } |
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278 static double intrinsic_sin(double d) { |
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279 assert(_intrinsic_sin != NULL, "must be defined"); |
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280 return _intrinsic_sin(d); |
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281 } |
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282 static double intrinsic_cos(double d) { |
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283 assert(_intrinsic_cos != NULL, "must be defined"); |
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284 return _intrinsic_cos(d); |
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285 } |
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286 static double intrinsic_tan(double d) { |
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287 assert(_intrinsic_tan != NULL, "must be defined"); |
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288 return _intrinsic_tan(d); |
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289 } |
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290 |
| 0 | 291 // |
| 292 // Default versions of the above arraycopy functions for platforms which do | |
| 293 // not have specialized versions | |
| 294 // | |
| 295 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); | |
| 296 static void jshort_copy(jshort* src, jshort* dest, size_t count); | |
| 297 static void jint_copy (jint* src, jint* dest, size_t count); | |
| 298 static void jlong_copy (jlong* src, jlong* dest, size_t count); | |
| 299 static void oop_copy (oop* src, oop* dest, size_t count); | |
| 300 | |
| 301 static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); | |
| 302 static void arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count); | |
| 303 static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); | |
| 304 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); | |
| 305 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); | |
| 306 }; |