1 /*
2 * Copyright (c) 1997, 2015, 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/interpreterRuntime.hpp"
30 #include "interpreter/interp_masm.hpp"
31 #include "interpreter/templateInterpreterGenerator.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 //------------------------------------------------------------------------------------------------------------------------
55
56 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
57 address entry = __ pc();
58 // rbx,: method
59 // rcx: temporary
60 // rdi: pointer to locals
61 // rsp: end of copied parameters area
62 __ mov(rcx, rsp);
63 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), rbx, rdi, rcx);
64 __ ret(0);
65 return entry;
66 }
67
68
69 address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
70
71 // rbx,: Method*
72 // rcx: scratrch
73 // rsi: sender sp
74
75 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry
76
77 address entry_point = __ pc();
78
79 // These don't need a safepoint check because they aren't virtually
80 // callable. We won't enter these intrinsics from compiled code.
81 // If in the future we added an intrinsic which was virtually callable
82 // we'd have to worry about how to safepoint so that this code is used.
83
84 // mathematical functions inlined by compiler
85 // (interpreter must provide identical implementation
86 // in order to avoid monotonicity bugs when switching
87 // from interpreter to compiler in the middle of some
88 // computation)
89 //
90 // stack: [ ret adr ] <-- rsp
91 // [ lo(arg) ]
92 // [ hi(arg) ]
93 //
94
95 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are
96 // native methods. Interpreter::method_kind(...) does a check for
97 // native methods first before checking for intrinsic methods and
98 // thus will never select this entry point. Make sure it is not
99 // called accidentally since the SharedRuntime entry points will
100 // not work for JDK 1.2.
101 //
102 // We no longer need to check for JDK 1.2 since it's EOL'ed.
103 // The following check existed in pre 1.6 implementation,
104 // if (Universe::is_jdk12x_version()) {
105 // __ should_not_reach_here();
106 // }
107 // Universe::is_jdk12x_version() always returns false since
108 // the JDK version is not yet determined when this method is called.
109 // This method is called during interpreter_init() whereas
110 // JDK version is only determined when universe2_init() is called.
111
112 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are
113 // java methods. Interpreter::method_kind(...) will select
114 // this entry point for the corresponding methods in JDK 1.3.
115 // get argument
116 __ fld_d(Address(rsp, 1*wordSize));
117 switch (kind) {
118 case Interpreter::java_lang_math_sin :
119 __ trigfunc('s');
120 break;
121 case Interpreter::java_lang_math_cos :
122 __ trigfunc('c');
123 break;
124 case Interpreter::java_lang_math_tan :
125 __ trigfunc('t');
126 break;
127 case Interpreter::java_lang_math_sqrt:
128 __ fsqrt();
129 break;
130 case Interpreter::java_lang_math_abs:
131 __ fabs();
132 break;
133 case Interpreter::java_lang_math_log:
134 __ subptr(rsp, 2 * wordSize);
135 __ fstp_d(Address(rsp, 0));
136 if (VM_Version::supports_sse2()) {
137 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dlog())));
138 }
139 else {
140 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dlog)));
141 }
142 __ addptr(rsp, 2 * wordSize);
143 break;
144 case Interpreter::java_lang_math_log10:
145 __ flog10();
146 // Store to stack to convert 80bit precision back to 64bits
147 __ push_fTOS();
148 __ pop_fTOS();
149 break;
150 case Interpreter::java_lang_math_pow:
151 __ fld_d(Address(rsp, 3*wordSize)); // second argument
152 __ pow_with_fallback(0);
153 // Store to stack to convert 80bit precision back to 64bits
154 __ push_fTOS();
155 __ pop_fTOS();
156 break;
157 case Interpreter::java_lang_math_exp:
158 __ subptr(rsp, 2*wordSize);
159 __ fstp_d(Address(rsp, 0));
160 if (VM_Version::supports_sse2()) {
161 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dexp())));
162 } else {
163 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dexp)));
164 }
165 __ addptr(rsp, 2*wordSize);
166 break;
167 default :
168 ShouldNotReachHere();
169 }
170
171 // return double result in xmm0 for interpreter and compilers.
172 if (UseSSE >= 2) {
173 __ subptr(rsp, 2*wordSize);
174 __ fstp_d(Address(rsp, 0));
175 __ movdbl(xmm0, Address(rsp, 0));
176 __ addptr(rsp, 2*wordSize);
177 }
178
179 // done, result in FPU ST(0) or XMM0
180 __ pop(rdi); // get return address
181 __ mov(rsp, rsi); // set sp to sender sp
182 __ jmp(rdi);
183
184 return entry_point;
185 }