1 /* |
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2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright (c) 2014, Red Hat Inc. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #include "precompiled.hpp" |
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27 #include "asm/macroAssembler.hpp" |
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28 #include "interpreter/bytecodeHistogram.hpp" |
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29 #include "interpreter/interpreter.hpp" |
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30 #include "interpreter/interpreterRuntime.hpp" |
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31 #include "interpreter/interp_masm.hpp" |
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32 #include "interpreter/templateInterpreterGenerator.hpp" |
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33 #include "interpreter/templateTable.hpp" |
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34 #include "oops/arrayOop.hpp" |
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35 #include "oops/methodData.hpp" |
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36 #include "oops/method.hpp" |
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37 #include "oops/oop.inline.hpp" |
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38 #include "prims/jvmtiExport.hpp" |
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39 #include "prims/jvmtiThreadState.hpp" |
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40 #include "prims/methodHandles.hpp" |
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41 #include "runtime/arguments.hpp" |
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42 #include "runtime/frame.inline.hpp" |
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43 #include "runtime/sharedRuntime.hpp" |
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44 #include "runtime/stubRoutines.hpp" |
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45 #include "runtime/synchronizer.hpp" |
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46 #include "runtime/timer.hpp" |
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47 #include "runtime/vframeArray.hpp" |
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48 #include "utilities/debug.hpp" |
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49 #ifdef COMPILER1 |
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50 #include "c1/c1_Runtime1.hpp" |
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51 #endif |
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52 |
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53 #define __ _masm-> |
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54 |
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55 |
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56 address AbstractInterpreterGenerator::generate_slow_signature_handler() { |
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57 address entry = __ pc(); |
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58 |
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59 __ andr(esp, esp, -16); |
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60 __ mov(c_rarg3, esp); |
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61 // rmethod |
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62 // rlocals |
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63 // c_rarg3: first stack arg - wordSize |
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64 |
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65 // adjust sp |
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66 __ sub(sp, c_rarg3, 18 * wordSize); |
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67 __ str(lr, Address(__ pre(sp, -2 * wordSize))); |
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68 __ call_VM(noreg, |
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69 CAST_FROM_FN_PTR(address, |
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70 InterpreterRuntime::slow_signature_handler), |
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71 rmethod, rlocals, c_rarg3); |
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72 |
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73 // r0: result handler |
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74 |
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75 // Stack layout: |
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76 // rsp: return address <- sp |
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77 // 1 garbage |
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78 // 8 integer args (if static first is unused) |
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79 // 1 float/double identifiers |
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80 // 8 double args |
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81 // stack args <- esp |
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82 // garbage |
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83 // expression stack bottom |
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84 // bcp (NULL) |
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85 // ... |
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86 |
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87 // Restore LR |
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88 __ ldr(lr, Address(__ post(sp, 2 * wordSize))); |
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89 |
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90 // Do FP first so we can use c_rarg3 as temp |
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91 __ ldrw(c_rarg3, Address(sp, 9 * wordSize)); // float/double identifiers |
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92 |
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93 for (int i = 0; i < Argument::n_float_register_parameters_c; i++) { |
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94 const FloatRegister r = as_FloatRegister(i); |
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95 |
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96 Label d, done; |
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97 |
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98 __ tbnz(c_rarg3, i, d); |
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99 __ ldrs(r, Address(sp, (10 + i) * wordSize)); |
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100 __ b(done); |
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101 __ bind(d); |
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102 __ ldrd(r, Address(sp, (10 + i) * wordSize)); |
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103 __ bind(done); |
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104 } |
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105 |
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106 // c_rarg0 contains the result from the call of |
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107 // InterpreterRuntime::slow_signature_handler so we don't touch it |
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108 // here. It will be loaded with the JNIEnv* later. |
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109 __ ldr(c_rarg1, Address(sp, 1 * wordSize)); |
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110 for (int i = c_rarg2->encoding(); i <= c_rarg7->encoding(); i += 2) { |
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111 Register rm = as_Register(i), rn = as_Register(i+1); |
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112 __ ldp(rm, rn, Address(sp, i * wordSize)); |
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113 } |
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114 |
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115 __ add(sp, sp, 18 * wordSize); |
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116 __ ret(lr); |
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117 |
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118 return entry; |
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119 } |
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120 |
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121 |
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122 // |
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123 // Various method entries |
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124 // |
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125 |
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126 address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) { |
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127 // rmethod: Method* |
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128 // r13: sender sp |
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129 // esp: args |
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130 |
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131 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry |
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132 |
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133 // These don't need a safepoint check because they aren't virtually |
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134 // callable. We won't enter these intrinsics from compiled code. |
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135 // If in the future we added an intrinsic which was virtually callable |
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136 // we'd have to worry about how to safepoint so that this code is used. |
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137 |
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138 // mathematical functions inlined by compiler |
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139 // (interpreter must provide identical implementation |
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140 // in order to avoid monotonicity bugs when switching |
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141 // from interpreter to compiler in the middle of some |
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142 // computation) |
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143 // |
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144 // stack: |
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145 // [ arg ] <-- esp |
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146 // [ arg ] |
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147 // retaddr in lr |
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148 |
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149 address entry_point = NULL; |
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150 Register continuation = lr; |
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151 switch (kind) { |
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152 case Interpreter::java_lang_math_abs: |
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153 entry_point = __ pc(); |
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154 __ ldrd(v0, Address(esp)); |
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155 __ fabsd(v0, v0); |
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156 __ mov(sp, r13); // Restore caller's SP |
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157 break; |
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158 case Interpreter::java_lang_math_sqrt: |
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159 entry_point = __ pc(); |
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160 __ ldrd(v0, Address(esp)); |
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161 __ fsqrtd(v0, v0); |
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162 __ mov(sp, r13); |
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163 break; |
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164 case Interpreter::java_lang_math_sin : |
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165 case Interpreter::java_lang_math_cos : |
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166 case Interpreter::java_lang_math_tan : |
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167 case Interpreter::java_lang_math_log : |
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168 case Interpreter::java_lang_math_log10 : |
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169 case Interpreter::java_lang_math_exp : |
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170 entry_point = __ pc(); |
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171 __ ldrd(v0, Address(esp)); |
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172 __ mov(sp, r13); |
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173 __ mov(r19, lr); |
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174 continuation = r19; // The first callee-saved register |
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175 generate_transcendental_entry(kind, 1); |
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176 break; |
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177 case Interpreter::java_lang_math_pow : |
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178 entry_point = __ pc(); |
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179 __ mov(r19, lr); |
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180 continuation = r19; |
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181 __ ldrd(v0, Address(esp, 2 * Interpreter::stackElementSize)); |
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182 __ ldrd(v1, Address(esp)); |
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183 __ mov(sp, r13); |
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184 generate_transcendental_entry(kind, 2); |
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185 break; |
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186 default: |
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187 ; |
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188 } |
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189 if (entry_point) { |
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190 __ br(continuation); |
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191 } |
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192 |
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193 return entry_point; |
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194 } |
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195 |
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196 // double trigonometrics and transcendentals |
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197 // static jdouble dsin(jdouble x); |
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198 // static jdouble dcos(jdouble x); |
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199 // static jdouble dtan(jdouble x); |
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200 // static jdouble dlog(jdouble x); |
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201 // static jdouble dlog10(jdouble x); |
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202 // static jdouble dexp(jdouble x); |
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203 // static jdouble dpow(jdouble x, jdouble y); |
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204 |
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205 void TemplateInterpreterGenerator::generate_transcendental_entry(AbstractInterpreter::MethodKind kind, int fpargs) { |
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206 address fn; |
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207 switch (kind) { |
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208 case Interpreter::java_lang_math_sin : |
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209 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dsin); |
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210 break; |
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211 case Interpreter::java_lang_math_cos : |
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212 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dcos); |
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213 break; |
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214 case Interpreter::java_lang_math_tan : |
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215 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dtan); |
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216 break; |
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217 case Interpreter::java_lang_math_log : |
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218 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dlog); |
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219 break; |
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220 case Interpreter::java_lang_math_log10 : |
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221 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dlog10); |
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222 break; |
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223 case Interpreter::java_lang_math_exp : |
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224 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dexp); |
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225 break; |
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226 case Interpreter::java_lang_math_pow : |
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227 fpargs = 2; |
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228 fn = CAST_FROM_FN_PTR(address, SharedRuntime::dpow); |
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229 break; |
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230 default: |
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231 ShouldNotReachHere(); |
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232 } |
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233 const int gpargs = 0, rtype = 3; |
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234 __ mov(rscratch1, fn); |
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235 __ blrt(rscratch1, gpargs, fpargs, rtype); |
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236 } |
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237 |
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238 // Abstract method entry |
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239 // Attempt to execute abstract method. Throw exception |
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240 address TemplateInterpreterGenerator::generate_abstract_entry(void) { |
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241 // rmethod: Method* |
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242 // r13: sender SP |
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243 |
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244 address entry_point = __ pc(); |
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245 |
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246 // abstract method entry |
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247 |
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248 // pop return address, reset last_sp to NULL |
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249 __ empty_expression_stack(); |
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250 __ restore_bcp(); // bcp must be correct for exception handler (was destroyed) |
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251 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
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252 |
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253 // throw exception |
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254 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
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255 InterpreterRuntime::throw_AbstractMethodError)); |
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256 // the call_VM checks for exception, so we should never return here. |
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257 __ should_not_reach_here(); |
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258 |
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259 return entry_point; |
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260 } |
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