author | goetz |
Fri, 02 Aug 2013 16:46:45 +0200 | |
changeset 22824 | 28258dd5cb2e |
child 22861 | f5c393d456fc |
permissions | -rw-r--r-- |
22824
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/* |
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
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* Copyright 2012, 2013 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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* 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/assembler.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/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/deoptimization.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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#ifndef CC_INTERP |
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#error "CC_INTERP must be defined on PPC" |
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#endif |
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#define __ _masm-> |
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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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int AbstractInterpreter::BasicType_as_index(BasicType type) { |
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int i = 0; |
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switch (type) { |
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case T_BOOLEAN: i = 0; break; |
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case T_CHAR : i = 1; break; |
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case T_BYTE : i = 2; break; |
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case T_SHORT : i = 3; break; |
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case T_INT : i = 4; break; |
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case T_LONG : i = 5; break; |
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case T_VOID : i = 6; break; |
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case T_FLOAT : i = 7; break; |
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case T_DOUBLE : i = 8; break; |
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case T_OBJECT : i = 9; break; |
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case T_ARRAY : i = 9; break; |
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default : ShouldNotReachHere(); |
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} |
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assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); |
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return i; |
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} |
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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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127 |
const Register intSlot = R27_tmp7; |
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128 |
const Register target_sp = R28_tmp8; |
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129 |
const FloatRegister floatSlot = F0; |
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|
130 |
|
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131 |
address entry = __ emit_fd(); |
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|
132 |
|
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133 |
__ save_LR_CR(R0); |
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|
134 |
__ save_nonvolatile_gprs(R1_SP, _spill_nonvolatiles_neg(r14)); |
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135 |
// We use target_sp for storing arguments in the C frame. |
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136 |
__ mr(target_sp, R1_SP); |
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137 |
__ push_frame_abi112_nonvolatiles(0, R11_scratch1); |
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|
138 |
|
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139 |
__ mr(arg_java, R3_ARG1); |
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|
140 |
|
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|
141 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::get_signature), R16_thread, R19_method); |
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|
142 |
|
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|
143 |
// Signature is in R3_RET. Signature is callee saved. |
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144 |
__ mr(signature, R3_RET); |
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|
145 |
|
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|
146 |
// Reload method, it may have moved. |
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|
147 |
#ifdef CC_INTERP |
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|
148 |
__ ld(R19_method, state_(_method)); |
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|
149 |
#else |
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|
150 |
__ unimplemented("slow signature handler 1"); |
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|
151 |
#endif |
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|
152 |
|
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|
153 |
// Get the result handler. |
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|
154 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::get_result_handler), R16_thread, R19_method); |
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|
155 |
|
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|
156 |
// Reload method, it may have moved. |
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|
157 |
#ifdef CC_INTERP |
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|
158 |
__ ld(R19_method, state_(_method)); |
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|
159 |
#else |
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|
160 |
__ unimplemented("slow signature handler 2"); |
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|
161 |
#endif |
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|
162 |
|
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|
163 |
{ |
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|
164 |
Label L; |
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|
165 |
// test if static |
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|
166 |
// _access_flags._flags must be at offset 0. |
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|
167 |
// TODO PPC port: requires change in shared code. |
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|
168 |
//assert(in_bytes(AccessFlags::flags_offset()) == 0, |
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|
169 |
// "MethodOopDesc._access_flags == MethodOopDesc._access_flags._flags"); |
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170 |
// _access_flags must be a 32 bit value. |
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|
171 |
assert(sizeof(AccessFlags) == 4, "wrong size"); |
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|
172 |
__ lwa(R11_scratch1/*access_flags*/, method_(access_flags)); |
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|
173 |
// testbit with condition register. |
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|
174 |
__ testbitdi(CCR0, R0, R11_scratch1/*access_flags*/, JVM_ACC_STATIC_BIT); |
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|
175 |
__ btrue(CCR0, L); |
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|
176 |
// For non-static functions, pass "this" in R4_ARG2 and copy it |
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|
177 |
// to 2nd C-arg slot. |
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|
178 |
// We need to box the Java object here, so we use arg_java |
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|
179 |
// (address of current Java stack slot) as argument and don't |
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|
180 |
// dereference it as in case of ints, floats, etc. |
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|
181 |
__ mr(R4_ARG2, arg_java); |
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|
182 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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|
183 |
__ std(R4_ARG2, _abi(carg_2), target_sp); |
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|
184 |
__ bind(L); |
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|
185 |
} |
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|
186 |
|
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|
187 |
// Will be incremented directly after loop_start. argcnt=0 |
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|
188 |
// corresponds to 3rd C argument. |
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|
189 |
__ li(argcnt, -1); |
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|
190 |
// arg_c points to 3rd C argument |
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|
191 |
__ addi(arg_c, target_sp, _abi(carg_3)); |
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|
192 |
// no floating-point args parsed so far |
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parents:
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|
193 |
__ li(fpcnt, 0); |
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parents:
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changeset
|
194 |
|
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|
195 |
Label move_intSlot_to_ARG, move_floatSlot_to_FARG; |
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|
196 |
Label loop_start, loop_end; |
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parents:
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|
197 |
Label do_int, do_long, do_float, do_double, do_dontreachhere, do_object, do_array, do_boxed; |
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changeset
|
198 |
|
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parents:
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changeset
|
199 |
// signature points to '(' at entry |
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|
200 |
#ifdef ASSERT |
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parents:
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|
201 |
__ lbz(sig_byte, 0, signature); |
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|
202 |
__ cmplwi(CCR0, sig_byte, '('); |
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|
203 |
__ bne(CCR0, do_dontreachhere); |
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|
204 |
#endif |
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parents:
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|
205 |
|
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parents:
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|
206 |
__ bind(loop_start); |
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parents:
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|
207 |
|
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parents:
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|
208 |
__ addi(argcnt, argcnt, 1); |
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|
209 |
__ lbzu(sig_byte, 1, signature); |
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parents:
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changeset
|
210 |
|
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parents:
diff
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|
211 |
__ cmplwi(CCR0, sig_byte, ')'); // end of signature |
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|
212 |
__ beq(CCR0, loop_end); |
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changeset
|
213 |
|
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parents:
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|
214 |
__ cmplwi(CCR0, sig_byte, 'B'); // byte |
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|
215 |
__ beq(CCR0, do_int); |
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changeset
|
216 |
|
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parents:
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changeset
|
217 |
__ cmplwi(CCR0, sig_byte, 'C'); // char |
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|
218 |
__ beq(CCR0, do_int); |
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changeset
|
219 |
|
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parents:
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|
220 |
__ cmplwi(CCR0, sig_byte, 'D'); // double |
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|
221 |
__ beq(CCR0, do_double); |
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changeset
|
222 |
|
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parents:
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|
223 |
__ cmplwi(CCR0, sig_byte, 'F'); // float |
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|
224 |
__ beq(CCR0, do_float); |
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parents:
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changeset
|
225 |
|
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parents:
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|
226 |
__ cmplwi(CCR0, sig_byte, 'I'); // int |
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|
227 |
__ beq(CCR0, do_int); |
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changeset
|
228 |
|
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parents:
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|
229 |
__ cmplwi(CCR0, sig_byte, 'J'); // long |
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|
230 |
__ beq(CCR0, do_long); |
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parents:
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changeset
|
231 |
|
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parents:
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|
232 |
__ cmplwi(CCR0, sig_byte, 'S'); // short |
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|
233 |
__ beq(CCR0, do_int); |
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|
234 |
|
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|
235 |
__ cmplwi(CCR0, sig_byte, 'Z'); // boolean |
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|
236 |
__ beq(CCR0, do_int); |
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|
237 |
|
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|
238 |
__ cmplwi(CCR0, sig_byte, 'L'); // object |
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|
239 |
__ beq(CCR0, do_object); |
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|
240 |
|
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parents:
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|
241 |
__ cmplwi(CCR0, sig_byte, '['); // array |
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|
242 |
__ beq(CCR0, do_array); |
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|
243 |
|
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parents:
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|
244 |
// __ cmplwi(CCR0, sig_byte, 'V'); // void cannot appear since we do not parse the return type |
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|
245 |
// __ beq(CCR0, do_void); |
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|
246 |
|
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parents:
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|
247 |
__ bind(do_dontreachhere); |
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parents:
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|
248 |
|
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parents:
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|
249 |
__ unimplemented("ShouldNotReachHere in slow_signature_handler", 120); |
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parents:
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changeset
|
250 |
|
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parents:
diff
changeset
|
251 |
__ bind(do_array); |
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parents:
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changeset
|
252 |
|
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parents:
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|
253 |
{ |
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parents:
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|
254 |
Label start_skip, end_skip; |
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parents:
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|
255 |
|
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parents:
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|
256 |
__ bind(start_skip); |
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parents:
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|
257 |
__ lbzu(sig_byte, 1, signature); |
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parents:
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|
258 |
__ cmplwi(CCR0, sig_byte, '['); |
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parents:
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|
259 |
__ beq(CCR0, start_skip); // skip further brackets |
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|
260 |
__ cmplwi(CCR0, sig_byte, '9'); |
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parents:
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changeset
|
261 |
__ bgt(CCR0, end_skip); // no optional size |
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parents:
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changeset
|
262 |
__ cmplwi(CCR0, sig_byte, '0'); |
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parents:
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changeset
|
263 |
__ bge(CCR0, start_skip); // skip optional size |
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parents:
diff
changeset
|
264 |
__ bind(end_skip); |
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parents:
diff
changeset
|
265 |
|
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parents:
diff
changeset
|
266 |
__ cmplwi(CCR0, sig_byte, 'L'); |
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parents:
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|
267 |
__ beq(CCR0, do_object); // for arrays of objects, the name of the object must be skipped |
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parents:
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|
268 |
__ b(do_boxed); // otherwise, go directly to do_boxed |
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parents:
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|
269 |
} |
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parents:
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changeset
|
270 |
|
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parents:
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changeset
|
271 |
__ bind(do_object); |
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parents:
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|
272 |
{ |
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parents:
diff
changeset
|
273 |
Label L; |
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parents:
diff
changeset
|
274 |
__ bind(L); |
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parents:
diff
changeset
|
275 |
__ lbzu(sig_byte, 1, signature); |
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parents:
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changeset
|
276 |
__ cmplwi(CCR0, sig_byte, ';'); |
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parents:
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changeset
|
277 |
__ bne(CCR0, L); |
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parents:
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|
278 |
} |
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parents:
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|
279 |
// Need to box the Java object here, so we use arg_java (address of |
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|
280 |
// current Java stack slot) as argument and don't dereference it as |
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parents:
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|
281 |
// in case of ints, floats, etc. |
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parents:
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|
282 |
Label do_null; |
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parents:
diff
changeset
|
283 |
__ bind(do_boxed); |
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parents:
diff
changeset
|
284 |
__ ld(R0,0, arg_java); |
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parents:
diff
changeset
|
285 |
__ cmpdi(CCR0, R0, 0); |
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parents:
diff
changeset
|
286 |
__ li(intSlot,0); |
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parents:
diff
changeset
|
287 |
__ beq(CCR0, do_null); |
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parents:
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changeset
|
288 |
__ mr(intSlot, arg_java); |
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parents:
diff
changeset
|
289 |
__ bind(do_null); |
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parents:
diff
changeset
|
290 |
__ std(intSlot, 0, arg_c); |
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parents:
diff
changeset
|
291 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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parents:
diff
changeset
|
292 |
__ addi(arg_c, arg_c, BytesPerWord); |
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parents:
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changeset
|
293 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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parents:
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changeset
|
294 |
__ blt(CCR0, move_intSlot_to_ARG); |
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parents:
diff
changeset
|
295 |
__ b(loop_start); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
296 |
|
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parents:
diff
changeset
|
297 |
__ bind(do_int); |
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parents:
diff
changeset
|
298 |
__ lwa(intSlot, 0, arg_java); |
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parents:
diff
changeset
|
299 |
__ std(intSlot, 0, arg_c); |
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parents:
diff
changeset
|
300 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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parents:
diff
changeset
|
301 |
__ addi(arg_c, arg_c, BytesPerWord); |
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parents:
diff
changeset
|
302 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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parents:
diff
changeset
|
303 |
__ blt(CCR0, move_intSlot_to_ARG); |
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parents:
diff
changeset
|
304 |
__ b(loop_start); |
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parents:
diff
changeset
|
305 |
|
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
306 |
__ bind(do_long); |
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parents:
diff
changeset
|
307 |
__ ld(intSlot, -BytesPerWord, arg_java); |
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parents:
diff
changeset
|
308 |
__ std(intSlot, 0, arg_c); |
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parents:
diff
changeset
|
309 |
__ addi(arg_java, arg_java, - 2 * BytesPerWord); |
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parents:
diff
changeset
|
310 |
__ addi(arg_c, arg_c, BytesPerWord); |
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parents:
diff
changeset
|
311 |
__ cmplwi(CCR0, argcnt, max_int_register_arguments); |
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parents:
diff
changeset
|
312 |
__ blt(CCR0, move_intSlot_to_ARG); |
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parents:
diff
changeset
|
313 |
__ b(loop_start); |
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parents:
diff
changeset
|
314 |
|
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parents:
diff
changeset
|
315 |
__ bind(do_float); |
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parents:
diff
changeset
|
316 |
__ lfs(floatSlot, 0, arg_java); |
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parents:
diff
changeset
|
317 |
#if defined(LINUX) |
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parents:
diff
changeset
|
318 |
__ stfs(floatSlot, 4, arg_c); |
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parents:
diff
changeset
|
319 |
#elif defined(AIX) |
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parents:
diff
changeset
|
320 |
__ stfs(floatSlot, 0, arg_c); |
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parents:
diff
changeset
|
321 |
#else |
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parents:
diff
changeset
|
322 |
#error "unknown OS" |
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parents:
diff
changeset
|
323 |
#endif |
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parents:
diff
changeset
|
324 |
__ addi(arg_java, arg_java, -BytesPerWord); |
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parents:
diff
changeset
|
325 |
__ addi(arg_c, arg_c, BytesPerWord); |
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parents:
diff
changeset
|
326 |
__ cmplwi(CCR0, fpcnt, max_fp_register_arguments); |
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parents:
diff
changeset
|
327 |
__ blt(CCR0, move_floatSlot_to_FARG); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
328 |
__ b(loop_start); |
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parents:
diff
changeset
|
329 |
|
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parents:
diff
changeset
|
330 |
__ bind(do_double); |
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parents:
diff
changeset
|
331 |
__ lfd(floatSlot, - BytesPerWord, arg_java); |
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parents:
diff
changeset
|
332 |
__ stfd(floatSlot, 0, arg_c); |
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parents:
diff
changeset
|
333 |
__ addi(arg_java, arg_java, - 2 * BytesPerWord); |
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parents:
diff
changeset
|
334 |
__ addi(arg_c, arg_c, BytesPerWord); |
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parents:
diff
changeset
|
335 |
__ cmplwi(CCR0, fpcnt, max_fp_register_arguments); |
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parents:
diff
changeset
|
336 |
__ blt(CCR0, move_floatSlot_to_FARG); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
337 |
__ b(loop_start); |
28258dd5cb2e
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parents:
diff
changeset
|
338 |
|
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
339 |
__ bind(loop_end); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
340 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
341 |
__ pop_frame(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
342 |
__ restore_nonvolatile_gprs(R1_SP, _spill_nonvolatiles_neg(r14)); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
343 |
__ restore_LR_CR(R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
344 |
|
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parents:
diff
changeset
|
345 |
__ blr(); |
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parents:
diff
changeset
|
346 |
|
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parents:
diff
changeset
|
347 |
Label move_int_arg, move_float_arg; |
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parents:
diff
changeset
|
348 |
__ bind(move_int_arg); // each case must consist of 2 instructions (otherwise adapt LogSizeOfTwoInstructions) |
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parents:
diff
changeset
|
349 |
__ mr(R5_ARG3, intSlot); __ b(loop_start); |
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parents:
diff
changeset
|
350 |
__ mr(R6_ARG4, intSlot); __ b(loop_start); |
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parents:
diff
changeset
|
351 |
__ mr(R7_ARG5, intSlot); __ b(loop_start); |
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parents:
diff
changeset
|
352 |
__ mr(R8_ARG6, intSlot); __ b(loop_start); |
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parents:
diff
changeset
|
353 |
__ mr(R9_ARG7, intSlot); __ b(loop_start); |
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parents:
diff
changeset
|
354 |
__ mr(R10_ARG8, intSlot); __ b(loop_start); |
28258dd5cb2e
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goetz
parents:
diff
changeset
|
355 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
356 |
__ bind(move_float_arg); // each case must consist of 2 instructions (otherwise adapt LogSizeOfTwoInstructions) |
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parents:
diff
changeset
|
357 |
__ fmr(F1_ARG1, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
358 |
__ fmr(F2_ARG2, floatSlot); __ b(loop_start); |
28258dd5cb2e
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parents:
diff
changeset
|
359 |
__ fmr(F3_ARG3, floatSlot); __ b(loop_start); |
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parents:
diff
changeset
|
360 |
__ fmr(F4_ARG4, floatSlot); __ b(loop_start); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
361 |
__ fmr(F5_ARG5, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
362 |
__ fmr(F6_ARG6, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
363 |
__ fmr(F7_ARG7, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
364 |
__ fmr(F8_ARG8, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
365 |
__ fmr(F9_ARG9, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
366 |
__ fmr(F10_ARG10, floatSlot); __ b(loop_start); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
367 |
__ fmr(F11_ARG11, floatSlot); __ b(loop_start); |
28258dd5cb2e
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goetz
parents:
diff
changeset
|
368 |
__ fmr(F12_ARG12, floatSlot); __ b(loop_start); |
28258dd5cb2e
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parents:
diff
changeset
|
369 |
__ fmr(F13_ARG13, floatSlot); __ b(loop_start); |
28258dd5cb2e
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goetz
parents:
diff
changeset
|
370 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
371 |
__ bind(move_intSlot_to_ARG); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
372 |
__ sldi(R0, argcnt, LogSizeOfTwoInstructions); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
373 |
__ load_const(R11_scratch1, move_int_arg); // Label must be bound here. |
28258dd5cb2e
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parents:
diff
changeset
|
374 |
__ add(R11_scratch1, R0, R11_scratch1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
375 |
__ mtctr(R11_scratch1/*branch_target*/); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
376 |
__ bctr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
377 |
__ bind(move_floatSlot_to_FARG); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
378 |
__ sldi(R0, fpcnt, LogSizeOfTwoInstructions); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
379 |
__ addi(fpcnt, fpcnt, 1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
380 |
__ load_const(R11_scratch1, move_float_arg); // Label must be bound here. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
381 |
__ add(R11_scratch1, R0, R11_scratch1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
382 |
__ mtctr(R11_scratch1/*branch_target*/); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
383 |
__ bctr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
384 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
385 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
386 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
387 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
388 |
address AbstractInterpreterGenerator::generate_result_handler_for(BasicType type) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
389 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
390 |
// Registers alive |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
391 |
// R3_RET |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
392 |
// LR |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
393 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
394 |
// Registers updated |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
395 |
// R3_RET |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
396 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
397 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
398 |
Label done; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
399 |
Label is_false; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
400 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
401 |
address entry = __ pc(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
402 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
403 |
switch (type) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
404 |
case T_BOOLEAN: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
405 |
__ cmpwi(CCR0, R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
406 |
__ beq(CCR0, is_false); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
407 |
__ li(R3_RET, 1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
408 |
__ b(done); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
409 |
__ bind(is_false); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
410 |
__ li(R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
411 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
412 |
case T_BYTE: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
413 |
// sign extend 8 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
414 |
__ extsb(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
415 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
416 |
case T_CHAR: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
417 |
// zero extend 16 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
418 |
__ clrldi(R3_RET, R3_RET, 48); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
419 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
420 |
case T_SHORT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
421 |
// sign extend 16 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
422 |
__ extsh(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
423 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
424 |
case T_INT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
425 |
// sign extend 32 bits |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
426 |
__ extsw(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
427 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
428 |
case T_LONG: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
429 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
430 |
case T_OBJECT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
431 |
// unbox result if not null |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
432 |
__ cmpdi(CCR0, R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
433 |
__ beq(CCR0, done); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
434 |
__ ld(R3_RET, 0, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
435 |
__ verify_oop(R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
436 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
437 |
case T_FLOAT: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
438 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
439 |
case T_DOUBLE: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
440 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
441 |
case T_VOID: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
442 |
break; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
443 |
default: ShouldNotReachHere(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
444 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
445 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
446 |
__ BIND(done); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
447 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
448 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
449 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
450 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
451 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
452 |
// Abstract method entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
453 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
454 |
address InterpreterGenerator::generate_abstract_entry(void) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
455 |
address entry = __ pc(); |
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 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
458 |
// Registers alive |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
459 |
// R16_thread - JavaThread* |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
460 |
// R19_method - callee's methodOop (method to be invoked) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
461 |
// 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
|
462 |
// LR - return address to caller |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
463 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
464 |
// Stack layout at this point: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
465 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
466 |
// 0 [TOP_IJAVA_FRAME_ABI] <-- R1_SP |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
467 |
// alignment (optional) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
468 |
// [outgoing Java arguments] |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
469 |
// ... |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
470 |
// PARENT [PARENT_IJAVA_FRAME_ABI] |
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 |
// |
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 |
// 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
|
475 |
// 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
|
476 |
// our caller set up the JavaFrameAnchor. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
477 |
__ 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
|
478 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
479 |
// Push a new C frame and save LR. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
480 |
__ save_LR_CR(R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
481 |
__ push_frame_abi112_nonvolatiles(0, R11_scratch1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
482 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
483 |
// 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
|
484 |
// check (create) exceptions afterward so this is ok. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
485 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
486 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
487 |
// Pop the C frame and restore LR. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
488 |
__ pop_frame(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
489 |
__ restore_LR_CR(R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
490 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
491 |
// Reset JavaFrameAnchor from call_VM_leaf above. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
492 |
__ reset_last_Java_frame(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
493 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
494 |
// 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
|
495 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
496 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
497 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
498 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
499 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
500 |
// Call an accessor method (assuming it is resolved, otherwise drop into |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
501 |
// vanilla (slow path) entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
502 |
address InterpreterGenerator::generate_accessor_entry(void) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
503 |
if(!UseFastAccessorMethods && (!FLAG_IS_ERGO(UseFastAccessorMethods))) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
504 |
return NULL; |
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 |
Label Ldone, Lslow_path; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
507 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
508 |
const Register Rthis = R3_ARG1, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
509 |
Rconst_method = R4_ARG2, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
510 |
Rcodes = Rconst_method, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
511 |
Rcpool_cache = R5_ARG3, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
512 |
Rscratch = R11_scratch1, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
513 |
Rjvmti_mode = Rscratch, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
514 |
Roffset = R12_scratch2, |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
515 |
Rflags = R6_ARG4; |
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.
goetz
parents:
diff
changeset
|
517 |
address entry = __ pc(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
518 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
519 |
// Check for safepoint: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
520 |
// Ditch this, real man don't need safepoint checks. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
521 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
522 |
// Also check for JVMTI mode |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
523 |
// Check for null obj, take slow path if so. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
524 |
#ifdef CC_INTERP |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
525 |
__ ld(Rthis, Interpreter::stackElementSize, R17_tos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
526 |
#else |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
527 |
Unimplemented() |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
528 |
#endif |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
529 |
__ lwz(Rjvmti_mode, thread_(interp_only_mode)); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
530 |
__ cmpdi(CCR1, Rthis, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
531 |
__ cmpwi(CCR0, Rjvmti_mode, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
532 |
__ crorc(/*CCR0 eq*/2, /*CCR1 eq*/4+2, /*CCR0 eq*/2); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
533 |
__ beq(CCR0, Lslow_path); // this==null or jvmti_mode!=0 |
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 |
// Do 2 things in parallel: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
536 |
// 1. Load the index out of the first instruction word, which looks like this: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
537 |
// <0x2a><0xb4><index (2 byte, native endianess)>. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
538 |
// 2. Load constant pool cache base. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
539 |
__ ld(Rconst_method, in_bytes(Method::const_offset()), R19_method); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
540 |
__ ld(Rcpool_cache, in_bytes(ConstMethod::constants_offset()), Rconst_method); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
541 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
542 |
__ lhz(Rcodes, in_bytes(ConstMethod::codes_offset()) + 2, Rconst_method); // Lower half of 32 bit field. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
543 |
__ ld(Rcpool_cache, ConstantPool::cache_offset_in_bytes(), Rcpool_cache); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
544 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
545 |
// Get the const pool entry by means of <index>. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
546 |
const int codes_shift = exact_log2(in_words(ConstantPoolCacheEntry::size()) * BytesPerWord); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
547 |
__ slwi(Rscratch, Rcodes, codes_shift); // (codes&0xFFFF)<<codes_shift |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
548 |
__ add(Rcpool_cache, Rscratch, Rcpool_cache); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
549 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
550 |
// Check if cpool cache entry is resolved. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
551 |
// We are resolved if the indices offset contains the current bytecode. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
552 |
ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
553 |
// Big Endian: |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
554 |
__ lbz(Rscratch, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::indices_offset()) + 7 - 2, Rcpool_cache); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
555 |
__ cmpwi(CCR0, Rscratch, Bytecodes::_getfield); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
556 |
__ bne(CCR0, Lslow_path); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
557 |
__ isync(); // Order succeeding loads wrt. load of _indices field from cpool_cache. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
558 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
559 |
// Finally, start loading the value: Get cp cache entry into regs. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
560 |
__ ld(Rflags, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::flags_offset()), Rcpool_cache); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
561 |
__ ld(Roffset, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::f2_offset()), Rcpool_cache); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
562 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
563 |
// Get field type. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
564 |
// (Rflags>>ConstantPoolCacheEntry::tos_state_shift)&((1<<ConstantPoolCacheEntry::tos_state_bits)-1) |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
565 |
__ rldicl(Rflags, Rflags, 64-ConstantPoolCacheEntry::tos_state_shift, 64-ConstantPoolCacheEntry::tos_state_bits); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
566 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
567 |
#ifdef ASSERT |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
568 |
__ ld(R9_ARG7, 0, R1_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
569 |
__ ld(R10_ARG8, 0, R21_sender_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
570 |
__ cmpd(CCR0, R9_ARG7, R10_ARG8); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
571 |
__ asm_assert_eq("backlink", 0x543); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
572 |
#endif // ASSERT |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
573 |
__ 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
|
574 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
575 |
// Load the return value according to field type. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
576 |
Label Litos, Lltos, Lbtos, Lctos, Lstos; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
577 |
__ cmpdi(CCR1, Rflags, itos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
578 |
__ cmpdi(CCR0, Rflags, ltos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
579 |
__ beq(CCR1, Litos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
580 |
__ beq(CCR0, Lltos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
581 |
__ cmpdi(CCR1, Rflags, btos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
582 |
__ cmpdi(CCR0, Rflags, ctos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
583 |
__ beq(CCR1, Lbtos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
584 |
__ beq(CCR0, Lctos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
585 |
__ cmpdi(CCR1, Rflags, stos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
586 |
__ beq(CCR1, Lstos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
587 |
#ifdef ASSERT |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
588 |
__ cmpdi(CCR0, Rflags, atos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
589 |
__ asm_assert_eq("what type is this?", 0x432); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
590 |
#endif |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
591 |
// fallthru: __ bind(Latos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
592 |
__ load_heap_oop(R3_RET, (RegisterOrConstant)Roffset, Rthis); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
593 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
594 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
595 |
__ bind(Litos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
596 |
__ lwax(R3_RET, Rthis, Roffset); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
597 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
598 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
599 |
__ bind(Lltos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
600 |
__ ldx(R3_RET, Rthis, Roffset); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
601 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
602 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
603 |
__ bind(Lbtos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
604 |
__ lbzx(R3_RET, Rthis, Roffset); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
605 |
__ extsb(R3_RET, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
606 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
607 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
608 |
__ bind(Lctos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
609 |
__ lhzx(R3_RET, Rthis, Roffset); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
610 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
611 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
612 |
__ bind(Lstos); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
613 |
__ lhax(R3_RET, Rthis, Roffset); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
614 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
615 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
616 |
__ bind(Lslow_path); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
617 |
assert(Interpreter::entry_for_kind(Interpreter::zerolocals), "Normal entry must have been generated by now"); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
618 |
__ load_const_optimized(Rscratch, Interpreter::entry_for_kind(Interpreter::zerolocals), R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
619 |
__ mtctr(Rscratch); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
620 |
__ bctr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
621 |
__ flush(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
622 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
623 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
624 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
625 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
626 |
// Interpreter intrinsic for WeakReference.get(). |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
627 |
// 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
|
628 |
// into R8 and return quickly |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
629 |
// 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
|
630 |
// 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
|
631 |
// 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
|
632 |
// weak ref points to! |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
633 |
address InterpreterGenerator::generate_Reference_get_entry(void) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
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|
634 |
// Code: _aload_0, _getfield, _areturn |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
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|
635 |
// parameter size = 1 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
636 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
637 |
// 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
|
638 |
// 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
|
639 |
// 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
|
640 |
// |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
641 |
// Notes: |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
642 |
// * 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
|
643 |
// 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
|
644 |
// 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
|
645 |
// 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
|
646 |
// update buffer. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
647 |
// 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
|
648 |
// 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
|
649 |
// Reference.get() then going through the normal method entry |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
650 |
// will be fine. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
651 |
// * 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
|
652 |
// 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
|
653 |
// 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
|
654 |
// 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
|
655 |
// regular method entry code to generate the NPE. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
656 |
// |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
657 |
// This code is based on generate_accessor_enty. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
658 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
659 |
address entry = __ pc(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
660 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
661 |
const int referent_offset = java_lang_ref_Reference::referent_offset; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
662 |
guarantee(referent_offset > 0, "referent offset not initialized"); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
663 |
|
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
664 |
if (UseG1GC) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
665 |
Label slow_path; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
666 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
667 |
// 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
|
668 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
669 |
// In the G1 code we don't check if we need to reach a safepoint. We |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
670 |
// continue and the thread will safepoint at the next bytecode dispatch. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
671 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
672 |
// If the receiver is null then it is OK to jump to the slow path. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
673 |
#ifdef CC_INTERP |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
674 |
__ ld(R3_RET, Interpreter::stackElementSize, R17_tos); // get receiver |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
675 |
#else |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
676 |
Unimplemented(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
677 |
#endif |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
678 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
679 |
// Check if receiver == NULL and go the slow path. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
680 |
__ cmpdi(CCR0, R3_RET, 0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
681 |
__ beq(CCR0, slow_path); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
682 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
683 |
// Load the value of the referent field. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
684 |
__ load_heap_oop_not_null(R3_RET, referent_offset, R3_RET); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
685 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
686 |
// Generate the G1 pre-barrier code to log the value of |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
687 |
// the referent field in an SATB buffer. Note with |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
688 |
// these parameters the pre-barrier does not generate |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
689 |
// the load of the previous value. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
690 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
691 |
// Restore caller sp for c2i case. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
692 |
#ifdef ASSERT |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
693 |
__ ld(R9_ARG7, 0, R1_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
694 |
__ ld(R10_ARG8, 0, R21_sender_SP); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
695 |
__ cmpd(CCR0, R9_ARG7, R10_ARG8); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
696 |
__ asm_assert_eq("backlink", 0x544); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
697 |
#endif // ASSERT |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
698 |
__ 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
|
699 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
700 |
__ g1_write_barrier_pre(noreg, // obj |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
701 |
noreg, // offset |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
702 |
R3_RET, // pre_val |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
703 |
R11_scratch1, // tmp |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
704 |
R12_scratch2, // tmp |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
705 |
true); // needs_frame |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
706 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
707 |
__ blr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
708 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
709 |
// Generate regular method entry. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
710 |
__ bind(slow_path); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
711 |
assert(Interpreter::entry_for_kind(Interpreter::zerolocals), "Normal entry must have been generated by now"); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
712 |
__ load_const_optimized(R11_scratch1, Interpreter::entry_for_kind(Interpreter::zerolocals), R0); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
713 |
__ mtctr(R11_scratch1); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
714 |
__ bctr(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
715 |
__ flush(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
716 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
717 |
return entry; |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
718 |
} else { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
719 |
return generate_accessor_entry(); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
720 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
721 |
} |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
722 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
723 |
void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
724 |
// This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
725 |
// the days we had adapter frames. When we deoptimize a situation where a |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
726 |
// compiled caller calls a compiled caller will have registers it expects |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
727 |
// to survive the call to the callee. If we deoptimize the callee the only |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
728 |
// way we can restore these registers is to have the oldest interpreter |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
729 |
// frame that we create restore these values. That is what this routine |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
730 |
// will accomplish. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
731 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
732 |
// At the moment we have modified c2 to not have any callee save registers |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
733 |
// so this problem does not exist and this routine is just a place holder. |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
734 |
|
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
735 |
assert(f->is_interpreted_frame(), "must be interpreted"); |
28258dd5cb2e
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
736 |
} |