Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/interpreter_x86_64.cpp @ 1958:13fee5052895
Merge
author | zgu |
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date | Wed, 17 Nov 2010 09:21:51 -0500 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2009, 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 |
c18cbe5936b8
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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/_interpreter_x86_64.cpp.incl" | |
27 | |
28 #define __ _masm-> | |
29 | |
30 | |
31 #ifdef _WIN64 | |
32 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
33 address entry = __ pc(); | |
34 | |
35 // rbx: method | |
36 // r14: pointer to locals | |
37 // c_rarg3: first stack arg - wordSize | |
304 | 38 __ mov(c_rarg3, rsp); |
0 | 39 // adjust rsp |
304 | 40 __ subptr(rsp, 4 * wordSize); |
0 | 41 __ call_VM(noreg, |
42 CAST_FROM_FN_PTR(address, | |
43 InterpreterRuntime::slow_signature_handler), | |
44 rbx, r14, c_rarg3); | |
45 | |
46 // rax: result handler | |
47 | |
48 // Stack layout: | |
49 // rsp: 3 integer or float args (if static first is unused) | |
50 // 1 float/double identifiers | |
51 // return address | |
52 // stack args | |
53 // garbage | |
54 // expression stack bottom | |
55 // bcp (NULL) | |
56 // ... | |
57 | |
58 // Do FP first so we can use c_rarg3 as temp | |
59 __ movl(c_rarg3, Address(rsp, 3 * wordSize)); // float/double identifiers | |
60 | |
61 for ( int i= 0; i < Argument::n_int_register_parameters_c-1; i++ ) { | |
62 XMMRegister floatreg = as_XMMRegister(i+1); | |
63 Label isfloatordouble, isdouble, next; | |
64 | |
65 __ testl(c_rarg3, 1 << (i*2)); // Float or Double? | |
66 __ jcc(Assembler::notZero, isfloatordouble); | |
67 | |
68 // Do Int register here | |
69 switch ( i ) { | |
70 case 0: | |
71 __ movl(rscratch1, Address(rbx, methodOopDesc::access_flags_offset())); | |
72 __ testl(rscratch1, JVM_ACC_STATIC); | |
304 | 73 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0)); |
0 | 74 break; |
75 case 1: | |
304 | 76 __ movptr(c_rarg2, Address(rsp, wordSize)); |
0 | 77 break; |
78 case 2: | |
304 | 79 __ movptr(c_rarg3, Address(rsp, 2 * wordSize)); |
0 | 80 break; |
81 default: | |
82 break; | |
83 } | |
84 | |
85 __ jmp (next); | |
86 | |
87 __ bind(isfloatordouble); | |
88 __ testl(c_rarg3, 1 << ((i*2)+1)); // Double? | |
89 __ jcc(Assembler::notZero, isdouble); | |
90 | |
91 // Do Float Here | |
92 __ movflt(floatreg, Address(rsp, i * wordSize)); | |
93 __ jmp(next); | |
94 | |
95 // Do Double here | |
96 __ bind(isdouble); | |
97 __ movdbl(floatreg, Address(rsp, i * wordSize)); | |
98 | |
99 __ bind(next); | |
100 } | |
101 | |
102 | |
103 // restore rsp | |
304 | 104 __ addptr(rsp, 4 * wordSize); |
0 | 105 |
106 __ ret(0); | |
107 | |
108 return entry; | |
109 } | |
110 #else | |
111 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
112 address entry = __ pc(); | |
113 | |
114 // rbx: method | |
115 // r14: pointer to locals | |
116 // c_rarg3: first stack arg - wordSize | |
304 | 117 __ mov(c_rarg3, rsp); |
0 | 118 // adjust rsp |
304 | 119 __ subptr(rsp, 14 * wordSize); |
0 | 120 __ call_VM(noreg, |
121 CAST_FROM_FN_PTR(address, | |
122 InterpreterRuntime::slow_signature_handler), | |
123 rbx, r14, c_rarg3); | |
124 | |
125 // rax: result handler | |
126 | |
127 // Stack layout: | |
128 // rsp: 5 integer args (if static first is unused) | |
129 // 1 float/double identifiers | |
130 // 8 double args | |
131 // return address | |
132 // stack args | |
133 // garbage | |
134 // expression stack bottom | |
135 // bcp (NULL) | |
136 // ... | |
137 | |
138 // Do FP first so we can use c_rarg3 as temp | |
139 __ movl(c_rarg3, Address(rsp, 5 * wordSize)); // float/double identifiers | |
140 | |
141 for (int i = 0; i < Argument::n_float_register_parameters_c; i++) { | |
142 const XMMRegister r = as_XMMRegister(i); | |
143 | |
144 Label d, done; | |
145 | |
146 __ testl(c_rarg3, 1 << i); | |
147 __ jcc(Assembler::notZero, d); | |
148 __ movflt(r, Address(rsp, (6 + i) * wordSize)); | |
149 __ jmp(done); | |
150 __ bind(d); | |
151 __ movdbl(r, Address(rsp, (6 + i) * wordSize)); | |
152 __ bind(done); | |
153 } | |
154 | |
155 // Now handle integrals. Only do c_rarg1 if not static. | |
156 __ movl(c_rarg3, Address(rbx, methodOopDesc::access_flags_offset())); | |
157 __ testl(c_rarg3, JVM_ACC_STATIC); | |
304 | 158 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0)); |
0 | 159 |
304 | 160 __ movptr(c_rarg2, Address(rsp, wordSize)); |
161 __ movptr(c_rarg3, Address(rsp, 2 * wordSize)); | |
162 __ movptr(c_rarg4, Address(rsp, 3 * wordSize)); | |
163 __ movptr(c_rarg5, Address(rsp, 4 * wordSize)); | |
0 | 164 |
165 // restore rsp | |
304 | 166 __ addptr(rsp, 14 * wordSize); |
0 | 167 |
168 __ ret(0); | |
169 | |
170 return entry; | |
171 } | |
172 #endif | |
173 | |
174 | |
175 // | |
176 // Various method entries | |
177 // | |
178 | |
304 | 179 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) { |
180 | |
181 // rbx,: methodOop | |
182 // rcx: scratrch | |
183 // r13: sender sp | |
0 | 184 |
185 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry | |
186 | |
187 address entry_point = __ pc(); | |
188 | |
189 // These don't need a safepoint check because they aren't virtually | |
190 // callable. We won't enter these intrinsics from compiled code. | |
191 // If in the future we added an intrinsic which was virtually callable | |
192 // we'd have to worry about how to safepoint so that this code is used. | |
193 | |
194 // mathematical functions inlined by compiler | |
195 // (interpreter must provide identical implementation | |
196 // in order to avoid monotonicity bugs when switching | |
197 // from interpreter to compiler in the middle of some | |
198 // computation) | |
304 | 199 // |
200 // stack: [ ret adr ] <-- rsp | |
201 // [ lo(arg) ] | |
202 // [ hi(arg) ] | |
203 // | |
0 | 204 |
205 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are | |
206 // native methods. Interpreter::method_kind(...) does a check for | |
207 // native methods first before checking for intrinsic methods and | |
208 // thus will never select this entry point. Make sure it is not | |
209 // called accidentally since the SharedRuntime entry points will | |
210 // not work for JDK 1.2. | |
211 // | |
212 // We no longer need to check for JDK 1.2 since it's EOL'ed. | |
213 // The following check existed in pre 1.6 implementation, | |
214 // if (Universe::is_jdk12x_version()) { | |
215 // __ should_not_reach_here(); | |
216 // } | |
217 // Universe::is_jdk12x_version() always returns false since | |
218 // the JDK version is not yet determined when this method is called. | |
219 // This method is called during interpreter_init() whereas | |
220 // JDK version is only determined when universe2_init() is called. | |
221 | |
222 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are | |
223 // java methods. Interpreter::method_kind(...) will select | |
224 // this entry point for the corresponding methods in JDK 1.3. | |
304 | 225 // get argument |
0 | 226 |
304 | 227 if (kind == Interpreter::java_lang_math_sqrt) { |
228 __ sqrtsd(xmm0, Address(rsp, wordSize)); | |
229 } else { | |
230 __ fld_d(Address(rsp, wordSize)); | |
231 switch (kind) { | |
232 case Interpreter::java_lang_math_sin : | |
233 __ trigfunc('s'); | |
234 break; | |
235 case Interpreter::java_lang_math_cos : | |
236 __ trigfunc('c'); | |
237 break; | |
238 case Interpreter::java_lang_math_tan : | |
239 __ trigfunc('t'); | |
240 break; | |
241 case Interpreter::java_lang_math_abs: | |
242 __ fabs(); | |
243 break; | |
244 case Interpreter::java_lang_math_log: | |
245 __ flog(); | |
246 break; | |
247 case Interpreter::java_lang_math_log10: | |
248 __ flog10(); | |
249 break; | |
250 default : | |
251 ShouldNotReachHere(); | |
252 } | |
253 | |
254 // return double result in xmm0 for interpreter and compilers. | |
255 __ subptr(rsp, 2*wordSize); | |
256 // Round to 64bit precision | |
257 __ fstp_d(Address(rsp, 0)); | |
258 __ movdbl(xmm0, Address(rsp, 0)); | |
259 __ addptr(rsp, 2*wordSize); | |
260 } | |
261 | |
262 | |
263 __ pop(rax); | |
264 __ mov(rsp, r13); | |
0 | 265 __ jmp(rax); |
266 | |
267 return entry_point; | |
268 } | |
269 | |
270 | |
271 // Abstract method entry | |
272 // Attempt to execute abstract method. Throw exception | |
273 address InterpreterGenerator::generate_abstract_entry(void) { | |
274 // rbx: methodOop | |
275 // r13: sender SP | |
276 | |
277 address entry_point = __ pc(); | |
278 | |
279 // abstract method entry | |
280 | |
1108 | 281 // pop return address, reset last_sp to NULL |
282 __ empty_expression_stack(); | |
283 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) | |
284 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) | |
0 | 285 |
286 // throw exception | |
287 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
288 InterpreterRuntime::throw_AbstractMethodError)); | |
289 // the call_VM checks for exception, so we should never return here. | |
290 __ should_not_reach_here(); | |
291 | |
292 return entry_point; | |
293 } | |
294 | |
295 | |
710 | 296 // Method handle invoker |
297 // Dispatch a method of the form java.dyn.MethodHandles::invoke(...) | |
298 address InterpreterGenerator::generate_method_handle_entry(void) { | |
299 if (!EnableMethodHandles) { | |
300 return generate_abstract_entry(); | |
301 } | |
1108 | 302 |
303 address entry_point = MethodHandles::generate_method_handle_interpreter_entry(_masm); | |
304 | |
305 return entry_point; | |
710 | 306 } |
307 | |
308 | |
0 | 309 // Empty method, generate a very fast return. |
310 | |
311 address InterpreterGenerator::generate_empty_entry(void) { | |
312 // rbx: methodOop | |
313 // r13: sender sp must set sp to this value on return | |
314 | |
315 if (!UseFastEmptyMethods) { | |
316 return NULL; | |
317 } | |
318 | |
319 address entry_point = __ pc(); | |
320 | |
321 // If we need a safepoint check, generate full interpreter entry. | |
322 Label slow_path; | |
323 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
324 SafepointSynchronize::_not_synchronized); | |
325 __ jcc(Assembler::notEqual, slow_path); | |
326 | |
327 // do nothing for empty methods (do not even increment invocation counter) | |
328 // Code: _return | |
329 // _return | |
330 // return w/o popping parameters | |
304 | 331 __ pop(rax); |
332 __ mov(rsp, r13); | |
0 | 333 __ jmp(rax); |
334 | |
335 __ bind(slow_path); | |
336 (void) generate_normal_entry(false); | |
337 return entry_point; | |
338 | |
339 } | |
340 | |
341 // This method tells the deoptimizer how big an interpreted frame must be: | |
342 int AbstractInterpreter::size_activation(methodOop method, | |
343 int tempcount, | |
344 int popframe_extra_args, | |
345 int moncount, | |
346 int callee_param_count, | |
347 int callee_locals, | |
348 bool is_top_frame) { | |
349 return layout_activation(method, | |
350 tempcount, popframe_extra_args, moncount, | |
351 callee_param_count, callee_locals, | |
352 (frame*) NULL, (frame*) NULL, is_top_frame); | |
353 } | |
354 | |
355 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { | |
356 | |
357 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in | |
358 // the days we had adapter frames. When we deoptimize a situation where a | |
359 // compiled caller calls a compiled caller will have registers it expects | |
360 // to survive the call to the callee. If we deoptimize the callee the only | |
361 // way we can restore these registers is to have the oldest interpreter | |
362 // frame that we create restore these values. That is what this routine | |
363 // will accomplish. | |
364 | |
365 // At the moment we have modified c2 to not have any callee save registers | |
366 // so this problem does not exist and this routine is just a place holder. | |
367 | |
368 assert(f->is_interpreted_frame(), "must be interpreted"); | |
369 } |