1 /*
2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "asm/macroAssembler.hpp"
27 #include "interpreter/bytecodeHistogram.hpp"
28 #include "interpreter/interpreter.hpp"
29 #include "interpreter/interpreterGenerator.hpp"
30 #include "interpreter/interpreterRuntime.hpp"
31 #include "interpreter/interp_masm.hpp"
32 #include "interpreter/templateTable.hpp"
33 #include "oops/arrayOop.hpp"
34 #include "oops/methodData.hpp"
35 #include "oops/method.hpp"
36 #include "oops/oop.inline.hpp"
37 #include "prims/jvmtiExport.hpp"
38 #include "prims/jvmtiThreadState.hpp"
39 #include "prims/methodHandles.hpp"
40 #include "runtime/arguments.hpp"
41 #include "runtime/frame.inline.hpp"
42 #include "runtime/sharedRuntime.hpp"
43 #include "runtime/stubRoutines.hpp"
44 #include "runtime/synchronizer.hpp"
45 #include "runtime/timer.hpp"
46 #include "runtime/vframeArray.hpp"
47 #include "utilities/debug.hpp"
48 #ifdef COMPILER1
49 #include "c1/c1_Runtime1.hpp"
50 #endif
51
52 #define __ _masm->
53
54 #ifdef _WIN64
55 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
56 address entry = __ pc();
57
58 // rbx: method
59 // r14: pointer to locals
60 // c_rarg3: first stack arg - wordSize
61 __ mov(c_rarg3, rsp);
62 // adjust rsp
63 __ subptr(rsp, 4 * wordSize);
64 __ call_VM(noreg,
65 CAST_FROM_FN_PTR(address,
66 InterpreterRuntime::slow_signature_handler),
67 rbx, r14, c_rarg3);
68
69 // rax: result handler
70
71 // Stack layout:
72 // rsp: 3 integer or float args (if static first is unused)
73 // 1 float/double identifiers
74 // return address
75 // stack args
76 // garbage
77 // expression stack bottom
78 // bcp (NULL)
79 // ...
80
81 // Do FP first so we can use c_rarg3 as temp
82 __ movl(c_rarg3, Address(rsp, 3 * wordSize)); // float/double identifiers
83
84 for ( int i= 0; i < Argument::n_int_register_parameters_c-1; i++ ) {
85 XMMRegister floatreg = as_XMMRegister(i+1);
86 Label isfloatordouble, isdouble, next;
87
88 __ testl(c_rarg3, 1 << (i*2)); // Float or Double?
89 __ jcc(Assembler::notZero, isfloatordouble);
90
91 // Do Int register here
92 switch ( i ) {
93 case 0:
94 __ movl(rscratch1, Address(rbx, Method::access_flags_offset()));
95 __ testl(rscratch1, JVM_ACC_STATIC);
96 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
97 break;
98 case 1:
99 __ movptr(c_rarg2, Address(rsp, wordSize));
100 break;
101 case 2:
102 __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
103 break;
104 default:
105 break;
106 }
107
108 __ jmp (next);
109
110 __ bind(isfloatordouble);
111 __ testl(c_rarg3, 1 << ((i*2)+1)); // Double?
112 __ jcc(Assembler::notZero, isdouble);
113
114 // Do Float Here
115 __ movflt(floatreg, Address(rsp, i * wordSize));
116 __ jmp(next);
117
118 // Do Double here
119 __ bind(isdouble);
120 __ movdbl(floatreg, Address(rsp, i * wordSize));
121
122 __ bind(next);
123 }
124
125
126 // restore rsp
127 __ addptr(rsp, 4 * wordSize);
128
129 __ ret(0);
130
131 return entry;
132 }
133 #else
134 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
135 address entry = __ pc();
136
137 // rbx: method
138 // r14: pointer to locals
139 // c_rarg3: first stack arg - wordSize
140 __ mov(c_rarg3, rsp);
141 // adjust rsp
142 __ subptr(rsp, 14 * wordSize);
143 __ call_VM(noreg,
144 CAST_FROM_FN_PTR(address,
145 InterpreterRuntime::slow_signature_handler),
146 rbx, r14, c_rarg3);
147
148 // rax: result handler
149
150 // Stack layout:
151 // rsp: 5 integer args (if static first is unused)
152 // 1 float/double identifiers
153 // 8 double args
154 // return address
155 // stack args
156 // garbage
157 // expression stack bottom
158 // bcp (NULL)
159 // ...
160
161 // Do FP first so we can use c_rarg3 as temp
162 __ movl(c_rarg3, Address(rsp, 5 * wordSize)); // float/double identifiers
163
164 for (int i = 0; i < Argument::n_float_register_parameters_c; i++) {
165 const XMMRegister r = as_XMMRegister(i);
166
167 Label d, done;
168
169 __ testl(c_rarg3, 1 << i);
170 __ jcc(Assembler::notZero, d);
171 __ movflt(r, Address(rsp, (6 + i) * wordSize));
172 __ jmp(done);
173 __ bind(d);
174 __ movdbl(r, Address(rsp, (6 + i) * wordSize));
175 __ bind(done);
176 }
177
178 // Now handle integrals. Only do c_rarg1 if not static.
179 __ movl(c_rarg3, Address(rbx, Method::access_flags_offset()));
180 __ testl(c_rarg3, JVM_ACC_STATIC);
181 __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
182
183 __ movptr(c_rarg2, Address(rsp, wordSize));
184 __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
185 __ movptr(c_rarg4, Address(rsp, 3 * wordSize));
186 __ movptr(c_rarg5, Address(rsp, 4 * wordSize));
187
188 // restore rsp
189 __ addptr(rsp, 14 * wordSize);
190
191 __ ret(0);
192
193 return entry;
194 }
195 #endif
196
197
198 //
199 // Various method entries
200 //
201
202 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
203
204 // rbx,: Method*
205 // rcx: scratrch
206 // r13: sender sp
207
208 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry
209
210 address entry_point = __ pc();
211
212 // These don't need a safepoint check because they aren't virtually
213 // callable. We won't enter these intrinsics from compiled code.
214 // If in the future we added an intrinsic which was virtually callable
215 // we'd have to worry about how to safepoint so that this code is used.
216
217 // mathematical functions inlined by compiler
218 // (interpreter must provide identical implementation
219 // in order to avoid monotonicity bugs when switching
220 // from interpreter to compiler in the middle of some
221 // computation)
222 //
223 // stack: [ ret adr ] <-- rsp
224 // [ lo(arg) ]
225 // [ hi(arg) ]
226 //
227
228 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are
229 // native methods. Interpreter::method_kind(...) does a check for
230 // native methods first before checking for intrinsic methods and
231 // thus will never select this entry point. Make sure it is not
232 // called accidentally since the SharedRuntime entry points will
233 // not work for JDK 1.2.
234 //
235 // We no longer need to check for JDK 1.2 since it's EOL'ed.
236 // The following check existed in pre 1.6 implementation,
237 // if (Universe::is_jdk12x_version()) {
238 // __ should_not_reach_here();
239 // }
240 // Universe::is_jdk12x_version() always returns false since
241 // the JDK version is not yet determined when this method is called.
242 // This method is called during interpreter_init() whereas
243 // JDK version is only determined when universe2_init() is called.
244
245 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are
246 // java methods. Interpreter::method_kind(...) will select
247 // this entry point for the corresponding methods in JDK 1.3.
248 // get argument
249
250 if (kind == Interpreter::java_lang_math_sqrt) {
251 __ sqrtsd(xmm0, Address(rsp, wordSize));
252 } else if (kind == Interpreter::java_lang_math_exp) {
253 __ movdbl(xmm0, Address(rsp, wordSize));
254 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dexp())));
255 } else if (kind == Interpreter::java_lang_math_log) {
256 __ movdbl(xmm0, Address(rsp, wordSize));
257 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dlog())));
258 } else {
259 __ fld_d(Address(rsp, wordSize));
260 switch (kind) {
261 case Interpreter::java_lang_math_sin :
262 __ trigfunc('s');
263 break;
264 case Interpreter::java_lang_math_cos :
265 __ trigfunc('c');
266 break;
267 case Interpreter::java_lang_math_tan :
268 __ trigfunc('t');
269 break;
270 case Interpreter::java_lang_math_abs:
271 __ fabs();
272 break;
273 case Interpreter::java_lang_math_log10:
274 __ flog10();
275 break;
276 case Interpreter::java_lang_math_pow:
277 __ fld_d(Address(rsp, 3*wordSize)); // second argument (one
278 // empty stack slot)
279 __ pow_with_fallback(0);
280 break;
281 default :
282 ShouldNotReachHere();
283 }
284
285 // return double result in xmm0 for interpreter and compilers.
286 __ subptr(rsp, 2*wordSize);
287 // Round to 64bit precision
288 __ fstp_d(Address(rsp, 0));
289 __ movdbl(xmm0, Address(rsp, 0));
290 __ addptr(rsp, 2*wordSize);
291 }
292
293
294 __ pop(rax);
295 __ mov(rsp, r13);
296 __ jmp(rax);
297
298 return entry_point;
299 }