author | coleenp |
Sat, 05 Dec 2015 10:40:22 -0500 | |
changeset 34651 | 07b1cc0f6040 |
parent 34188 | e6c7861d438d |
child 35166 | 23125410af16 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
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* Copyright 2012, 2015 SAP AG. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 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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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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|
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#include "precompiled.hpp" |
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#include "asm/macroAssembler.inline.hpp" |
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#include "interpreter/bytecodeHistogram.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "interpreter/interpreterGenerator.hpp" |
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#include "interpreter/interpreterRuntime.hpp" |
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#include "interpreter/interp_masm.hpp" |
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#include "interpreter/templateTable.hpp" |
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#include "oops/arrayOop.hpp" |
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#include "oops/methodData.hpp" |
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#include "oops/method.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "prims/jvmtiExport.hpp" |
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#include "prims/jvmtiThreadState.hpp" |
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#include "prims/methodHandles.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/frame.inline.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#include "runtime/stubRoutines.hpp" |
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#include "runtime/synchronizer.hpp" |
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#include "runtime/timer.hpp" |
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#include "runtime/vframeArray.hpp" |
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#include "utilities/debug.hpp" |
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#ifdef COMPILER1 |
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#include "c1/c1_Runtime1.hpp" |
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#endif |
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#define __ _masm-> |
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|
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#ifdef PRODUCT |
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#define BLOCK_COMMENT(str) // nothing |
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#else |
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#define BLOCK_COMMENT(str) __ block_comment(str) |
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#endif |
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|
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#define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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|
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address AbstractInterpreterGenerator::generate_slow_signature_handler() { |
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// Slow_signature handler that respects the PPC C calling conventions. |
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// |
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// We get called by the native entry code with our output register |
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// area == 8. First we call InterpreterRuntime::get_result_handler |
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// to copy the pointer to the signature string temporarily to the |
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// first C-argument and to return the result_handler in |
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// R3_RET. Since native_entry will copy the jni-pointer to the |
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// first C-argument slot later on, it is OK to occupy this slot |
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// temporarilly. Then we copy the argument list on the java |
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// expression stack into native varargs format on the native stack |
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// and load arguments into argument registers. Integer arguments in |
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// the varargs vector will be sign-extended to 8 bytes. |
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// |
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// On entry: |
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// R3_ARG1 - intptr_t* Address of java argument list in memory. |
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// R15_prev_state - BytecodeInterpreter* Address of interpreter state for |
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// this method |
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// R19_method |
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// |
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// On exit (just before return instruction): |
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// R3_RET - contains the address of the result_handler. |
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// R4_ARG2 - is not updated for static methods and contains "this" otherwise. |
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// R5_ARG3-R10_ARG8: - When the (i-2)th Java argument is not of type float or double, |
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// ARGi contains this argument. Otherwise, ARGi is not updated. |
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// F1_ARG1-F13_ARG13 - contain the first 13 arguments of type float or double. |
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|
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const int LogSizeOfTwoInstructions = 3; |
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|
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// FIXME: use Argument:: GL: Argument names different numbers! |
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const int max_fp_register_arguments = 13; |
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const int max_int_register_arguments = 6; // first 2 are reserved |
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|
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const Register arg_java = R21_tmp1; |
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const Register arg_c = R22_tmp2; |
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const Register signature = R23_tmp3; // is string |
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const Register sig_byte = R24_tmp4; |
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const Register fpcnt = R25_tmp5; |
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const Register argcnt = R26_tmp6; |
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const Register intSlot = R27_tmp7; |
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const Register target_sp = R28_tmp8; |
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const FloatRegister floatSlot = F0; |
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105 |
|
23211 | 106 |
address entry = __ function_entry(); |
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107 |
|
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__ save_LR_CR(R0); |
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__ save_nonvolatile_gprs(R1_SP, _spill_nonvolatiles_neg(r14)); |
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// We use target_sp for storing arguments in the C frame. |
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__ mr(target_sp, R1_SP); |
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__ push_frame_reg_args_nonvolatiles(0, R11_scratch1); |
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113 |
|
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__ mr(arg_java, R3_ARG1); |
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115 |
|
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__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::get_signature), R16_thread, R19_method); |
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117 |
|
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// Signature is in R3_RET. Signature is callee saved. |
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__ mr(signature, R3_RET); |
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120 |
|
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// Get the result handler. |
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__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::get_result_handler), R16_thread, R19_method); |
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123 |
|
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124 |
{ |
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125 |
Label L; |
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// test if static |
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127 |
// _access_flags._flags must be at offset 0. |
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128 |
// TODO PPC port: requires change in shared code. |
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129 |
//assert(in_bytes(AccessFlags::flags_offset()) == 0, |
24349 | 130 |
// "MethodDesc._access_flags == MethodDesc._access_flags._flags"); |
22824
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131 |
// _access_flags must be a 32 bit value. |
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132 |
assert(sizeof(AccessFlags) == 4, "wrong size"); |
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133 |
__ lwa(R11_scratch1/*access_flags*/, method_(access_flags)); |
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134 |
// testbit with condition register. |
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135 |
__ testbitdi(CCR0, R0, R11_scratch1/*access_flags*/, JVM_ACC_STATIC_BIT); |
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136 |
__ btrue(CCR0, L); |
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|
137 |
// For non-static functions, pass "this" in R4_ARG2 and copy it |
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138 |
// to 2nd C-arg slot. |
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139 |
// We need to box the Java object here, so we use arg_java |
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140 |
// (address of current Java stack slot) as argument and don't |
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141 |
// dereference it as in case of ints, floats, etc. |
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142 |
__ mr(R4_ARG2, arg_java); |
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143 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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144 |
__ std(R4_ARG2, _abi(carg_2), target_sp); |
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145 |
__ bind(L); |
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146 |
} |
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147 |
|
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148 |
// Will be incremented directly after loop_start. argcnt=0 |
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149 |
// corresponds to 3rd C argument. |
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150 |
__ li(argcnt, -1); |
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151 |
// arg_c points to 3rd C argument |
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152 |
__ addi(arg_c, target_sp, _abi(carg_3)); |
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153 |
// no floating-point args parsed so far |
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154 |
__ li(fpcnt, 0); |
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|
155 |
|
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156 |
Label move_intSlot_to_ARG, move_floatSlot_to_FARG; |
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157 |
Label loop_start, loop_end; |
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158 |
Label do_int, do_long, do_float, do_double, do_dontreachhere, do_object, do_array, do_boxed; |
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|
159 |
|
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160 |
// signature points to '(' at entry |
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161 |
#ifdef ASSERT |
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162 |
__ lbz(sig_byte, 0, signature); |
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163 |
__ cmplwi(CCR0, sig_byte, '('); |
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164 |
__ bne(CCR0, do_dontreachhere); |
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165 |
#endif |
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|
166 |
|
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167 |
__ bind(loop_start); |
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|
168 |
|
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169 |
__ addi(argcnt, argcnt, 1); |
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170 |
__ lbzu(sig_byte, 1, signature); |
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171 |
|
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172 |
__ cmplwi(CCR0, sig_byte, ')'); // end of signature |
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173 |
__ beq(CCR0, loop_end); |
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|
174 |
|
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175 |
__ cmplwi(CCR0, sig_byte, 'B'); // byte |
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176 |
__ beq(CCR0, do_int); |
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|
177 |
|
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178 |
__ cmplwi(CCR0, sig_byte, 'C'); // char |
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179 |
__ beq(CCR0, do_int); |
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|
180 |
|
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181 |
__ cmplwi(CCR0, sig_byte, 'D'); // double |
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182 |
__ beq(CCR0, do_double); |
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|
183 |
|
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184 |
__ cmplwi(CCR0, sig_byte, 'F'); // float |
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185 |
__ beq(CCR0, do_float); |
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|
186 |
|
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187 |
__ cmplwi(CCR0, sig_byte, 'I'); // int |
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188 |
__ beq(CCR0, do_int); |
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|
189 |
|
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190 |
__ cmplwi(CCR0, sig_byte, 'J'); // long |
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191 |
__ beq(CCR0, do_long); |
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|
192 |
|
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193 |
__ cmplwi(CCR0, sig_byte, 'S'); // short |
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|
194 |
__ beq(CCR0, do_int); |
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|
195 |
|
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196 |
__ cmplwi(CCR0, sig_byte, 'Z'); // boolean |
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|
197 |
__ beq(CCR0, do_int); |
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|
198 |
|
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199 |
__ cmplwi(CCR0, sig_byte, 'L'); // object |
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200 |
__ beq(CCR0, do_object); |
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|
201 |
|
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|
202 |
__ cmplwi(CCR0, sig_byte, '['); // array |
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|
203 |
__ beq(CCR0, do_array); |
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|
204 |
|
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|
205 |
// __ cmplwi(CCR0, sig_byte, 'V'); // void cannot appear since we do not parse the return type |
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|
206 |
// __ beq(CCR0, do_void); |
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|
207 |
|
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|
208 |
__ bind(do_dontreachhere); |
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|
209 |
|
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|
210 |
__ unimplemented("ShouldNotReachHere in slow_signature_handler", 120); |
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|
211 |
|
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|
212 |
__ bind(do_array); |
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|
213 |
|
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|
214 |
{ |
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|
215 |
Label start_skip, end_skip; |
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|
216 |
|
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|
217 |
__ bind(start_skip); |
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|
218 |
__ lbzu(sig_byte, 1, signature); |
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|
219 |
__ cmplwi(CCR0, sig_byte, '['); |
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|
220 |
__ beq(CCR0, start_skip); // skip further brackets |
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|
221 |
__ cmplwi(CCR0, sig_byte, '9'); |
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|
222 |
__ bgt(CCR0, end_skip); // no optional size |
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|
223 |
__ cmplwi(CCR0, sig_byte, '0'); |
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|
224 |
__ bge(CCR0, start_skip); // skip optional size |
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|
225 |
__ bind(end_skip); |
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|
226 |
|
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|
227 |
__ cmplwi(CCR0, sig_byte, 'L'); |
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|
228 |
__ beq(CCR0, do_object); // for arrays of objects, the name of the object must be skipped |
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|
229 |
__ b(do_boxed); // otherwise, go directly to do_boxed |
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|
230 |
} |
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|
231 |
|
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|
232 |
__ bind(do_object); |
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|
233 |
{ |
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|
234 |
Label L; |
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|
235 |
__ bind(L); |
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|
236 |
__ lbzu(sig_byte, 1, signature); |
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|
237 |
__ cmplwi(CCR0, sig_byte, ';'); |
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|
238 |
__ bne(CCR0, L); |
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|
239 |
} |
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|
240 |
// Need to box the Java object here, so we use arg_java (address of |
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|
241 |
// current Java stack slot) as argument and don't dereference it as |
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|
242 |
// in case of ints, floats, etc. |
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|
243 |
Label do_null; |
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|
244 |
__ bind(do_boxed); |
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|
245 |
__ ld(R0,0, arg_java); |
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|
246 |
__ cmpdi(CCR0, R0, 0); |
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|
247 |
__ li(intSlot,0); |
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|
248 |
__ beq(CCR0, do_null); |
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|
249 |
__ mr(intSlot, arg_java); |
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|
250 |
__ bind(do_null); |
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|
251 |
__ std(intSlot, 0, arg_c); |
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|
252 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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|
253 |
__ addi(arg_c, arg_c, BytesPerWord); |
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254 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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|
255 |
__ blt(CCR0, move_intSlot_to_ARG); |
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|
256 |
__ b(loop_start); |
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|
257 |
|
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|
258 |
__ bind(do_int); |
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|
259 |
__ lwa(intSlot, 0, arg_java); |
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|
260 |
__ std(intSlot, 0, arg_c); |
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|
261 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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|
262 |
__ addi(arg_c, arg_c, BytesPerWord); |
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|
263 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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|
264 |
__ blt(CCR0, move_intSlot_to_ARG); |
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|
265 |
__ b(loop_start); |
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parents:
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|
266 |
|
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|
267 |
__ bind(do_long); |
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parents:
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|
268 |
__ ld(intSlot, -BytesPerWord, arg_java); |
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|
269 |
__ std(intSlot, 0, arg_c); |
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|
270 |
__ addi(arg_java, arg_java, - 2 * BytesPerWord); |
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|
271 |
__ addi(arg_c, arg_c, BytesPerWord); |
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|
272 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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|
273 |
__ blt(CCR0, move_intSlot_to_ARG); |
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|
274 |
__ b(loop_start); |
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|
275 |
|
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|
276 |
__ bind(do_float); |
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|
277 |
__ lfs(floatSlot, 0, arg_java); |
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|
278 |
#if defined(LINUX) |
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279 |
// Linux uses ELF ABI. Both original ELF and ELFv2 ABIs have float |
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280 |
// in the least significant word of an argument slot. |
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|
281 |
#if defined(VM_LITTLE_ENDIAN) |
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|
282 |
__ stfs(floatSlot, 0, arg_c); |
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|
283 |
#else |
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|
284 |
__ stfs(floatSlot, 4, arg_c); |
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285 |
#endif |
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286 |
#elif defined(AIX) |
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287 |
// Although AIX runs on big endian CPU, float is in most significant |
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288 |
// word of an argument slot. |
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|
289 |
__ stfs(floatSlot, 0, arg_c); |
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|
290 |
#else |
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|
291 |
#error "unknown OS" |
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|
292 |
#endif |
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|
293 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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|
294 |
__ addi(arg_c, arg_c, BytesPerWord); |
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|
295 |
__ cmplwi(CCR0, fpcnt, max_fp_register_arguments); |
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|
296 |
__ blt(CCR0, move_floatSlot_to_FARG); |
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|
297 |
__ b(loop_start); |
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|
298 |
|
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|
299 |
__ bind(do_double); |
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|
300 |
__ lfd(floatSlot, - BytesPerWord, arg_java); |
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|
301 |
__ stfd(floatSlot, 0, arg_c); |
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|
302 |
__ addi(arg_java, arg_java, - 2 * BytesPerWord); |
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|
303 |
__ addi(arg_c, arg_c, BytesPerWord); |
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|
304 |
__ cmplwi(CCR0, fpcnt, max_fp_register_arguments); |
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|
305 |
__ blt(CCR0, move_floatSlot_to_FARG); |
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|
306 |
__ b(loop_start); |
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|
307 |
|
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parents:
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|
308 |
__ bind(loop_end); |
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|
309 |
|
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|
310 |
__ pop_frame(); |
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|
311 |
__ restore_nonvolatile_gprs(R1_SP, _spill_nonvolatiles_neg(r14)); |
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|
312 |
__ restore_LR_CR(R0); |
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|
313 |
|
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parents:
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|
314 |
__ blr(); |
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|
315 |
|
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|
316 |
Label move_int_arg, move_float_arg; |
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|
317 |
__ bind(move_int_arg); // each case must consist of 2 instructions (otherwise adapt LogSizeOfTwoInstructions) |
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|
318 |
__ mr(R5_ARG3, intSlot); __ b(loop_start); |
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|
319 |
__ mr(R6_ARG4, intSlot); __ b(loop_start); |
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|
320 |
__ mr(R7_ARG5, intSlot); __ b(loop_start); |
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|
321 |
__ mr(R8_ARG6, intSlot); __ b(loop_start); |
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|
322 |
__ mr(R9_ARG7, intSlot); __ b(loop_start); |
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|
323 |
__ mr(R10_ARG8, intSlot); __ b(loop_start); |
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parents:
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|
324 |
|
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parents:
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|
325 |
__ bind(move_float_arg); // each case must consist of 2 instructions (otherwise adapt LogSizeOfTwoInstructions) |
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|
326 |
__ fmr(F1_ARG1, floatSlot); __ b(loop_start); |
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|
327 |
__ fmr(F2_ARG2, floatSlot); __ b(loop_start); |
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|
328 |
__ fmr(F3_ARG3, floatSlot); __ b(loop_start); |
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|
329 |
__ fmr(F4_ARG4, floatSlot); __ b(loop_start); |
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|
330 |
__ fmr(F5_ARG5, floatSlot); __ b(loop_start); |
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parents:
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|
331 |
__ fmr(F6_ARG6, floatSlot); __ b(loop_start); |
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parents:
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|
332 |
__ fmr(F7_ARG7, floatSlot); __ b(loop_start); |
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parents:
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|
333 |
__ fmr(F8_ARG8, floatSlot); __ b(loop_start); |
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parents:
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changeset
|
334 |
__ fmr(F9_ARG9, floatSlot); __ b(loop_start); |
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parents:
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changeset
|
335 |
__ fmr(F10_ARG10, floatSlot); __ b(loop_start); |
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parents:
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|
336 |
__ fmr(F11_ARG11, floatSlot); __ b(loop_start); |
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parents:
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|
337 |
__ fmr(F12_ARG12, floatSlot); __ b(loop_start); |
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parents:
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|
338 |
__ fmr(F13_ARG13, floatSlot); __ b(loop_start); |
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parents:
diff
changeset
|
339 |
|
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parents:
diff
changeset
|
340 |
__ bind(move_intSlot_to_ARG); |
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parents:
diff
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|
341 |
__ sldi(R0, argcnt, LogSizeOfTwoInstructions); |
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parents:
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changeset
|
342 |
__ load_const(R11_scratch1, move_int_arg); // Label must be bound here. |
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parents:
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|
343 |
__ add(R11_scratch1, R0, R11_scratch1); |
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|
344 |
__ mtctr(R11_scratch1/*branch_target*/); |
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parents:
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|
345 |
__ bctr(); |
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parents:
diff
changeset
|
346 |
__ bind(move_floatSlot_to_FARG); |
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parents:
diff
changeset
|
347 |
__ sldi(R0, fpcnt, LogSizeOfTwoInstructions); |
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parents:
diff
changeset
|
348 |
__ addi(fpcnt, fpcnt, 1); |
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parents:
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|
349 |
__ load_const(R11_scratch1, move_float_arg); // Label must be bound here. |
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parents:
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|
350 |
__ add(R11_scratch1, R0, R11_scratch1); |
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parents:
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|
351 |
__ mtctr(R11_scratch1/*branch_target*/); |
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parents:
diff
changeset
|
352 |
__ bctr(); |
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parents:
diff
changeset
|
353 |
|
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parents:
diff
changeset
|
354 |
return entry; |
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parents:
diff
changeset
|
355 |
} |
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parents:
diff
changeset
|
356 |
|
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parents:
diff
changeset
|
357 |
address AbstractInterpreterGenerator::generate_result_handler_for(BasicType type) { |
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parents:
diff
changeset
|
358 |
// |
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parents:
diff
changeset
|
359 |
// Registers alive |
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parents:
diff
changeset
|
360 |
// R3_RET |
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parents:
diff
changeset
|
361 |
// LR |
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parents:
diff
changeset
|
362 |
// |
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parents:
diff
changeset
|
363 |
// Registers updated |
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parents:
diff
changeset
|
364 |
// R3_RET |
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parents:
diff
changeset
|
365 |
// |
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parents:
diff
changeset
|
366 |
|
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parents:
diff
changeset
|
367 |
Label done; |
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parents:
diff
changeset
|
368 |
address entry = __ pc(); |
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parents:
diff
changeset
|
369 |
|
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parents:
diff
changeset
|
370 |
switch (type) { |
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parents:
diff
changeset
|
371 |
case T_BOOLEAN: |
22861 | 372 |
// convert !=0 to 1 |
373 |
__ neg(R0, R3_RET); |
|
374 |
__ orr(R0, R3_RET, R0); |
|
375 |
__ srwi(R3_RET, R0, 31); |
|
22824
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parents:
diff
changeset
|
376 |
break; |
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parents:
diff
changeset
|
377 |
case T_BYTE: |
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parents:
diff
changeset
|
378 |
// sign extend 8 bits |
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parents:
diff
changeset
|
379 |
__ extsb(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
380 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
381 |
case T_CHAR: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
382 |
// zero extend 16 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
383 |
__ clrldi(R3_RET, R3_RET, 48); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
384 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
385 |
case T_SHORT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
386 |
// sign extend 16 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
387 |
__ extsh(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
388 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
389 |
case T_INT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
390 |
// sign extend 32 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
391 |
__ extsw(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
392 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
393 |
case T_LONG: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
394 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
395 |
case T_OBJECT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
396 |
// unbox result if not null |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
397 |
__ cmpdi(CCR0, R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
398 |
__ beq(CCR0, done); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
399 |
__ ld(R3_RET, 0, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
400 |
__ verify_oop(R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
401 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
402 |
case T_FLOAT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
403 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
404 |
case T_DOUBLE: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
405 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
406 |
case T_VOID: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
407 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
408 |
default: ShouldNotReachHere(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
409 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
410 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
411 |
__ BIND(done); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
412 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
413 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
414 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
415 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
416 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
417 |
// Abstract method entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
418 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
419 |
address InterpreterGenerator::generate_abstract_entry(void) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
420 |
address entry = __ pc(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
421 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
422 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
423 |
// Registers alive |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
424 |
// R16_thread - JavaThread* |
23221 | 425 |
// R19_method - callee's method (method to be invoked) |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
426 |
// R1_SP - SP prepared such that caller's outgoing args are near top |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
427 |
// LR - return address to caller |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
428 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
429 |
// Stack layout at this point: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
430 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
431 |
// 0 [TOP_IJAVA_FRAME_ABI] <-- R1_SP |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
432 |
// alignment (optional) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
433 |
// [outgoing Java arguments] |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
434 |
// ... |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
435 |
// PARENT [PARENT_IJAVA_FRAME_ABI] |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
436 |
// ... |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
437 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
438 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
439 |
// Can't use call_VM here because we have not set up a new |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
440 |
// interpreter state. Make the call to the vm and make it look like |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
441 |
// our caller set up the JavaFrameAnchor. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
442 |
__ set_top_ijava_frame_at_SP_as_last_Java_frame(R1_SP, R12_scratch2/*tmp*/); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
443 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
444 |
// Push a new C frame and save LR. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
445 |
__ save_LR_CR(R0); |
23211 | 446 |
__ push_frame_reg_args(0, R11_scratch1); |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
447 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
448 |
// This is not a leaf but we have a JavaFrameAnchor now and we will |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
449 |
// check (create) exceptions afterward so this is ok. |
30304
94f13c5f0f5d
8078482: ppc: pass thread to throw_AbstractMethodError
goetz
parents:
27012
diff
changeset
|
450 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError), |
94f13c5f0f5d
8078482: ppc: pass thread to throw_AbstractMethodError
goetz
parents:
27012
diff
changeset
|
451 |
R16_thread); |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
452 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
453 |
// Pop the C frame and restore LR. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
454 |
__ pop_frame(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
455 |
__ restore_LR_CR(R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
456 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
457 |
// Reset JavaFrameAnchor from call_VM_leaf above. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
458 |
__ reset_last_Java_frame(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
459 |
|
22861 | 460 |
#ifdef CC_INTERP |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
461 |
// Return to frame manager, it will handle the pending exception. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
462 |
__ blr(); |
22861 | 463 |
#else |
23221 | 464 |
// We don't know our caller, so jump to the general forward exception stub, |
465 |
// which will also pop our full frame off. Satisfy the interface of |
|
466 |
// SharedRuntime::generate_forward_exception() |
|
467 |
__ load_const_optimized(R11_scratch1, StubRoutines::forward_exception_entry(), R0); |
|
468 |
__ mtctr(R11_scratch1); |
|
469 |
__ bctr(); |
|
22861 | 470 |
#endif |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
471 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
472 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
473 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
474 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
475 |
// Interpreter intrinsic for WeakReference.get(). |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
476 |
// 1. Don't push a full blown frame and go on dispatching, but fetch the value |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
477 |
// into R8 and return quickly |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
478 |
// 2. If G1 is active we *must* execute this intrinsic for corrrectness: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
479 |
// It contains a GC barrier which puts the reference into the satb buffer |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
480 |
// to indicate that someone holds a strong reference to the object the |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
481 |
// weak ref points to! |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
482 |
address InterpreterGenerator::generate_Reference_get_entry(void) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
483 |
// Code: _aload_0, _getfield, _areturn |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
484 |
// parameter size = 1 |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
485 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
486 |
// The code that gets generated by this routine is split into 2 parts: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
487 |
// 1. the "intrinsified" code for G1 (or any SATB based GC), |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
488 |
// 2. the slow path - which is an expansion of the regular method entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
489 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
490 |
// Notes: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
491 |
// * In the G1 code we do not check whether we need to block for |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
492 |
// a safepoint. If G1 is enabled then we must execute the specialized |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
493 |
// code for Reference.get (except when the Reference object is null) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
494 |
// so that we can log the value in the referent field with an SATB |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
495 |
// update buffer. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
496 |
// If the code for the getfield template is modified so that the |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
497 |
// G1 pre-barrier code is executed when the current method is |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
498 |
// Reference.get() then going through the normal method entry |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
499 |
// will be fine. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
500 |
// * The G1 code can, however, check the receiver object (the instance |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
501 |
// of java.lang.Reference) and jump to the slow path if null. If the |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
502 |
// Reference object is null then we obviously cannot fetch the referent |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
503 |
// and so we don't need to call the G1 pre-barrier. Thus we can use the |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
504 |
// regular method entry code to generate the NPE. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
505 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
506 |
|
33070
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
507 |
if (UseG1GC) { |
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
508 |
address entry = __ pc(); |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
509 |
|
33070
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
510 |
const int referent_offset = java_lang_ref_Reference::referent_offset; |
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
511 |
guarantee(referent_offset > 0, "referent offset not initialized"); |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
512 |
|
33070
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
513 |
Label slow_path; |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
514 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
515 |
// Debugging not possible, so can't use __ skip_if_jvmti_mode(slow_path, GR31_SCRATCH); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
516 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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|
517 |
// In the G1 code we don't check if we need to reach a safepoint. We |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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|
518 |
// continue and the thread will safepoint at the next bytecode dispatch. |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
519 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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changeset
|
520 |
// If the receiver is null then it is OK to jump to the slow path. |
22861 | 521 |
__ ld(R3_RET, Interpreter::stackElementSize, CC_INTERP_ONLY(R17_tos) NOT_CC_INTERP(R15_esp)); // get receiver |
22824
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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changeset
|
522 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
523 |
// Check if receiver == NULL and go the slow path. |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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|
524 |
__ cmpdi(CCR0, R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
525 |
__ beq(CCR0, slow_path); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
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changeset
|
526 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
527 |
// Load the value of the referent field. |
22861 | 528 |
__ load_heap_oop(R3_RET, referent_offset, R3_RET); |
22824
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
529 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
530 |
// Generate the G1 pre-barrier code to log the value of |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
531 |
// the referent field in an SATB buffer. Note with |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
532 |
// these parameters the pre-barrier does not generate |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
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changeset
|
533 |
// the load of the previous value. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
534 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
535 |
// Restore caller sp for c2i case. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
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changeset
|
536 |
#ifdef ASSERT |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
537 |
__ ld(R9_ARG7, 0, R1_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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changeset
|
538 |
__ ld(R10_ARG8, 0, R21_sender_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
539 |
__ cmpd(CCR0, R9_ARG7, R10_ARG8); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
540 |
__ asm_assert_eq("backlink", 0x544); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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|
541 |
#endif // ASSERT |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
542 |
__ mr(R1_SP, R21_sender_SP); // Cut the stack back to where the caller started. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
543 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
544 |
__ g1_write_barrier_pre(noreg, // obj |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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|
545 |
noreg, // offset |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
546 |
R3_RET, // pre_val |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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|
547 |
R11_scratch1, // tmp |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
548 |
R12_scratch2, // tmp |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
549 |
true); // needs_frame |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
550 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
551 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
552 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
553 |
// Generate regular method entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
554 |
__ bind(slow_path); |
33070
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
555 |
__ jump_to_entry(Interpreter::entry_for_kind(Interpreter::zerolocals), R11_scratch1); |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
556 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
557 |
} |
33070
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
558 |
|
54f3f085b165
8136525: Generate interpreter entries only once and avoid unnecessary jump to jump
mdoerr
parents:
30304
diff
changeset
|
559 |
return NULL; |
22824
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
560 |
} |