truffle: src/cpu/ppc/vm/interp_masm_ppc

annotate src/cpu/ppc/vm/interp_masm_ppc_64.cpp @ 14643:ab8a5b82fe73

Merge.

author	Christian Humer <christian.humer@gmail.com>
date	Thu, 20 Mar 2014 20:40:11 +0100
parents	67fa91961822
children	58cf34613a72

rev	line source
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	1 /*
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	3 * Copyright 2012, 2013 SAP AG. All rights reserved.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	5 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	6 * This code is free software; you can redistribute it and/or modify it
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	7 * under the terms of the GNU General Public License version 2 only, as
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	8 * published by the Free Software Foundation.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	9 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	10 * This code is distributed in the hope that it will be useful, but WITHOUT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	13 * version 2 for more details (a copy is included in the LICENSE file that
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	14 * accompanied this code).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	15 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	16 * You should have received a copy of the GNU General Public License version
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	17 * 2 along with this work; if not, write to the Free Software Foundation,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	19 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	21 * or visit www.oracle.com if you need additional information or have any
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	22 * questions.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	23 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	24 */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	25
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	26
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	27 #include "precompiled.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	28 #include "asm/assembler.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	29 #include "asm/macroAssembler.inline.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	30 #include "interp_masm_ppc_64.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	31 #include "interpreter/interpreterRuntime.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	32
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	33 #ifdef PRODUCT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	34 #define BLOCK_COMMENT(str) // nothing
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	35 #else
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	36 #define BLOCK_COMMENT(str) block_comment(str)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	37 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	38
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	39 void InterpreterMacroAssembler::null_check_throw(Register a, int offset, Register temp_reg) {
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	40 #ifdef CC_INTERP
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	41 address exception_entry = StubRoutines::throw_NullPointerException_at_call_entry();
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	42 #else
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	43 address exception_entry = Interpreter::throw_NullPointerException_entry();
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	44 #endif
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	45 MacroAssembler::null_check_throw(a, offset, temp_reg, exception_entry);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	46 }
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	47
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	48 // Lock object
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	49 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	50 // Registers alive
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	51 // monitor - Address of the BasicObjectLock to be used for locking,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	52 // which must be initialized with the object to lock.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	53 // object - Address of the object to be locked.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	54 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	55 void InterpreterMacroAssembler::lock_object(Register monitor, Register object) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	56 if (UseHeavyMonitors) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	57 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	58 monitor, /check_for_exceptions=/true CC_INTERP_ONLY(&& false));
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	59 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	60 // template code:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	61 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	62 // markOop displaced_header = obj->mark().set_unlocked();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	63 // monitor->lock()->set_displaced_header(displaced_header);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	64 // if (Atomic::cmpxchg_ptr(/ex=/monitor, /addr/obj->mark_addr(), /cmp/displaced_header) == displaced_header) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	65 // // We stored the monitor address into the object's mark word.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	66 // } else if (THREAD->is_lock_owned((address)displaced_header))
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	67 // // Simple recursive case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	68 // monitor->lock()->set_displaced_header(NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	69 // } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	70 // // Slow path.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	71 // InterpreterRuntime::monitorenter(THREAD, monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	72 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	73
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	74 const Register displaced_header = R7_ARG5;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	75 const Register object_mark_addr = R8_ARG6;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	76 const Register current_header = R9_ARG7;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	77 const Register tmp = R10_ARG8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	78
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	79 Label done;
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	80 Label cas_failed, slow_case;
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	81
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	82 assert_different_registers(displaced_header, object_mark_addr, current_header, tmp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	83
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	84
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	85 // markOop displaced_header = obj->mark().set_unlocked();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	86
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	87 // Load markOop from object into displaced_header.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	88 ld(displaced_header, oopDesc::mark_offset_in_bytes(), object);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	89
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	90 if (UseBiasedLocking) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	91 biased_locking_enter(CCR0, object, displaced_header, tmp, current_header, done, &slow_case);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	92 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	93
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	94 // Set displaced_header to be (markOop of object \| UNLOCK_VALUE).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	95 ori(displaced_header, displaced_header, markOopDesc::unlocked_value);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	96
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	97
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	98 // monitor->lock()->set_displaced_header(displaced_header);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	99
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	100 // Initialize the box (Must happen before we update the object mark!).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	101 std(displaced_header, BasicObjectLock::lock_offset_in_bytes() +
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	102 BasicLock::displaced_header_offset_in_bytes(), monitor);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	103
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	104 // if (Atomic::cmpxchg_ptr(/ex=/monitor, /addr/obj->mark_addr(), /cmp/displaced_header) == displaced_header) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	105
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	106 // Store stack address of the BasicObjectLock (this is monitor) into object.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	107 addi(object_mark_addr, object, oopDesc::mark_offset_in_bytes());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	108
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	109 // Must fence, otherwise, preceding store(s) may float below cmpxchg.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	110 // CmpxchgX sets CCR0 to cmpX(current, displaced).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	111 fence(); // TODO: replace by MacroAssembler::MemBarRel \| MacroAssembler::MemBarAcq ?
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	112 cmpxchgd(/flag=/CCR0,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	113 /current_value=/current_header,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	114 /compare_value=/displaced_header, /exchange_value=/monitor,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	115 /where=/object_mark_addr,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	116 MacroAssembler::MemBarRel \| MacroAssembler::MemBarAcq,
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	117 MacroAssembler::cmpxchgx_hint_acquire_lock(),
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	118 noreg,
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	119 &cas_failed);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	120
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	121 // If the compare-and-exchange succeeded, then we found an unlocked
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	122 // object and we have now locked it.
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	123 b(done);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	124 bind(cas_failed);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	125
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	126 // } else if (THREAD->is_lock_owned((address)displaced_header))
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	127 // // Simple recursive case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	128 // monitor->lock()->set_displaced_header(NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	129
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	130 // We did not see an unlocked object so try the fast recursive case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	131
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	132 // Check if owner is self by comparing the value in the markOop of object
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	133 // (current_header) with the stack pointer.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	134 sub(current_header, current_header, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	135
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	136 assert(os::vm_page_size() > 0xfff, "page size too small - change the constant");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	137 load_const_optimized(tmp,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	138 (address) (~(os::vm_page_size()-1) \|
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	139 markOopDesc::lock_mask_in_place));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	140
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	141 and_(R0/==0?/, current_header, tmp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	142 // If condition is true we are done and hence we can store 0 in the displaced
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	143 // header indicating it is a recursive lock.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	144 bne(CCR0, slow_case);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	145 release();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	146 std(R0/==0!/, BasicObjectLock::lock_offset_in_bytes() +
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	147 BasicLock::displaced_header_offset_in_bytes(), monitor);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	148 b(done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	149
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	150
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	151 // } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	152 // // Slow path.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	153 // InterpreterRuntime::monitorenter(THREAD, monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	154
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	155 // None of the above fast optimizations worked so we have to get into the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	156 // slow case of monitor enter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	157 bind(slow_case);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	158 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter),
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	159 monitor, /check_for_exceptions=/true CC_INTERP_ONLY(&& false));
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	160 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	161
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	162 bind(done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	163 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	164 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	165
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	166 // Unlocks an object. Used in monitorexit bytecode and remove_activation.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	167 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	168 // Registers alive
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	169 // monitor - Address of the BasicObjectLock to be used for locking,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	170 // which must be initialized with the object to lock.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	171 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	172 // Throw IllegalMonitorException if object is not locked by current thread.
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	173 void InterpreterMacroAssembler::unlock_object(Register monitor, bool check_for_exceptions) {
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	174 if (UseHeavyMonitors) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	175 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	176 monitor, /check_for_exceptions=/false);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	177 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	178
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	179 // template code:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	180 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	181 // if ((displaced_header = monitor->displaced_header()) == NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	182 // // Recursive unlock. Mark the monitor unlocked by setting the object field to NULL.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	183 // monitor->set_obj(NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	184 // } else if (Atomic::cmpxchg_ptr(displaced_header, obj->mark_addr(), monitor) == monitor) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	185 // // We swapped the unlocked mark in displaced_header into the object's mark word.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	186 // monitor->set_obj(NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	187 // } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	188 // // Slow path.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	189 // InterpreterRuntime::monitorexit(THREAD, monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	190 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	191
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	192 const Register object = R7_ARG5;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	193 const Register displaced_header = R8_ARG6;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	194 const Register object_mark_addr = R9_ARG7;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	195 const Register current_header = R10_ARG8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	196
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	197 Label free_slot;
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	198 Label slow_case;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	199
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	200 assert_different_registers(object, displaced_header, object_mark_addr, current_header);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	201
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	202 if (UseBiasedLocking) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	203 // The object address from the monitor is in object.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	204 ld(object, BasicObjectLock::obj_offset_in_bytes(), monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	205 assert(oopDesc::mark_offset_in_bytes() == 0, "offset of _mark is not 0");
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	206 biased_locking_exit(CCR0, object, displaced_header, free_slot);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	207 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	208
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	209 // Test first if we are in the fast recursive case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	210 ld(displaced_header, BasicObjectLock::lock_offset_in_bytes() +
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	211 BasicLock::displaced_header_offset_in_bytes(), monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	212
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	213 // If the displaced header is zero, we have a recursive unlock.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	214 cmpdi(CCR0, displaced_header, 0);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	215 beq(CCR0, free_slot); // recursive unlock
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	216
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	217 // } else if (Atomic::cmpxchg_ptr(displaced_header, obj->mark_addr(), monitor) == monitor) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	218 // // We swapped the unlocked mark in displaced_header into the object's mark word.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	219 // monitor->set_obj(NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	220
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	221 // If we still have a lightweight lock, unlock the object and be done.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	222
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	223 // The object address from the monitor is in object.
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	224 if (!UseBiasedLocking) ld(object, BasicObjectLock::obj_offset_in_bytes(), monitor);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	225 addi(object_mark_addr, object, oopDesc::mark_offset_in_bytes());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	226
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	227 // We have the displaced header in displaced_header. If the lock is still
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	228 // lightweight, it will contain the monitor address and we'll store the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	229 // displaced header back into the object's mark word.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	230 // CmpxchgX sets CCR0 to cmpX(current, monitor).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	231 cmpxchgd(/flag=/CCR0,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	232 /current_value=/current_header,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	233 /compare_value=/monitor, /exchange_value=/displaced_header,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	234 /where=/object_mark_addr,
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	235 MacroAssembler::MemBarRel,
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	236 MacroAssembler::cmpxchgx_hint_release_lock(),
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	237 noreg,
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	238 &slow_case);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	239 b(free_slot);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	240
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	241 // } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	242 // // Slow path.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	243 // InterpreterRuntime::monitorexit(THREAD, monitor);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	244
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	245 // The lock has been converted into a heavy lock and hence
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	246 // we need to get into the slow case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	247 bind(slow_case);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	248 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit),
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	249 monitor, check_for_exceptions CC_INTERP_ONLY(&& false));
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	250 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	251
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	252 Label done;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	253 b(done); // Monitor register may be overwritten! Runtime has already freed the slot.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	254
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	255 // Exchange worked, do monitor->set_obj(NULL);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	256 align(32, 12);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	257 bind(free_slot);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	258 li(R0, 0);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	259 std(R0, BasicObjectLock::obj_offset_in_bytes(), monitor);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	260 bind(done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	261 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	262 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	263
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	264 void InterpreterMacroAssembler::get_method_counters(Register method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	265 Register Rcounters,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	266 Label& skip) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	267 BLOCK_COMMENT("Load and ev. allocate counter object {");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	268 Label has_counters;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	269 ld(Rcounters, in_bytes(Method::method_counters_offset()), method);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	270 cmpdi(CCR0, Rcounters, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	271 bne(CCR0, has_counters);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	272 call_VM(noreg, CAST_FROM_FN_PTR(address,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	273 InterpreterRuntime::build_method_counters), method, false);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	274 ld(Rcounters, in_bytes(Method::method_counters_offset()), method);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	275 cmpdi(CCR0, Rcounters, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	276 beq(CCR0, skip); // No MethodCounters, OutOfMemory.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	277 BLOCK_COMMENT("} Load and ev. allocate counter object");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	278
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	279 bind(has_counters);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	280 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	281
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	282 void InterpreterMacroAssembler::increment_invocation_counter(Register Rcounters, Register iv_be_count, Register Rtmp_r0) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	283 assert(UseCompiler, "incrementing must be useful");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	284 Register invocation_count = iv_be_count;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	285 Register backedge_count = Rtmp_r0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	286 int delta = InvocationCounter::count_increment;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	287
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	288 // Load each counter in a register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	289 // ld(inv_counter, Rtmp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	290 // ld(be_counter, Rtmp2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	291 int inv_counter_offset = in_bytes(MethodCounters::invocation_counter_offset() +
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	292 InvocationCounter::counter_offset());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	293 int be_counter_offset = in_bytes(MethodCounters::backedge_counter_offset() +
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	294 InvocationCounter::counter_offset());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	295
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	296 BLOCK_COMMENT("Increment profiling counters {");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	297
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	298 // Load the backedge counter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	299 lwz(backedge_count, be_counter_offset, Rcounters); // is unsigned int
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	300 // Mask the backedge counter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	301 Register tmp = invocation_count;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	302 li(tmp, InvocationCounter::count_mask_value);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	303 andr(backedge_count, tmp, backedge_count); // Cannot use andi, need sign extension of count_mask_value.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	304
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	305 // Load the invocation counter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	306 lwz(invocation_count, inv_counter_offset, Rcounters); // is unsigned int
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	307 // Add the delta to the invocation counter and store the result.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	308 addi(invocation_count, invocation_count, delta);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	309 // Store value.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	310 stw(invocation_count, inv_counter_offset, Rcounters);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	311
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	312 // Add invocation counter + backedge counter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	313 add(iv_be_count, backedge_count, invocation_count);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	314
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	315 // Note that this macro must leave the backedge_count + invocation_count in
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	316 // register iv_be_count!
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	317 BLOCK_COMMENT("} Increment profiling counters");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	318 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	319
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	320 void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	321 if (state == atos) { MacroAssembler::verify_oop(reg); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	322 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	323
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	324 // Inline assembly for:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	325 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	326 // if (thread is in interp_only_mode) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	327 // InterpreterRuntime::post_method_entry();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	328 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	329 // if (*jvmpi::event_flags_array_at_addr(JVMPI_EVENT_METHOD_ENTRY ) \|\|
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	330 // *jvmpi::event_flags_array_at_addr(JVMPI_EVENT_METHOD_ENTRY2) ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	331 // SharedRuntime::jvmpi_method_entry(method, receiver);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	332 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	333 void InterpreterMacroAssembler::notify_method_entry() {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	334 // JVMTI
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	335 // Whenever JVMTI puts a thread in interp_only_mode, method
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	336 // entry/exit events are sent for that thread to track stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	337 // depth. If it is possible to enter interp_only_mode we add
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	338 // the code to check if the event should be sent.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	339 if (JvmtiExport::can_post_interpreter_events()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	340 Label jvmti_post_done;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	341
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	342 lwz(R0, in_bytes(JavaThread::interp_only_mode_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	343 cmpwi(CCR0, R0, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	344 beq(CCR0, jvmti_post_done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	345 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	346 /check_exceptions=/false);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	347
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	348 bind(jvmti_post_done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	349 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	350 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	351
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	352
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	353 // Inline assembly for:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	354 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	355 // if (thread is in interp_only_mode) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	356 // // save result
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	357 // InterpreterRuntime::post_method_exit();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	358 // // restore result
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	359 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	360 // if (*jvmpi::event_flags_array_at_addr(JVMPI_EVENT_METHOD_EXIT)) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	361 // // save result
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	362 // SharedRuntime::jvmpi_method_exit();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	363 // // restore result
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	364 // }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	365 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	366 // Native methods have their result stored in d_tmp and l_tmp.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	367 // Java methods have their result stored in the expression stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	368 void InterpreterMacroAssembler::notify_method_exit(bool is_native_method, TosState state) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	369 // JVMTI
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	370 // Whenever JVMTI puts a thread in interp_only_mode, method
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	371 // entry/exit events are sent for that thread to track stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	372 // depth. If it is possible to enter interp_only_mode we add
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	373 // the code to check if the event should be sent.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	374 if (JvmtiExport::can_post_interpreter_events()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	375 Label jvmti_post_done;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	376
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	377 lwz(R0, in_bytes(JavaThread::interp_only_mode_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	378 cmpwi(CCR0, R0, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	379 beq(CCR0, jvmti_post_done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	380 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	381 /check_exceptions=/false);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	382
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14408 diff changeset	383 align(32, 12);
14408 ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	384 bind(jvmti_post_done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	385 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	386 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	387
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	388 // Convert the current TOP_IJAVA_FRAME into a PARENT_IJAVA_FRAME
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	389 // (using parent_frame_resize) and push a new interpreter
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	390 // TOP_IJAVA_FRAME (using frame_size).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	391 void InterpreterMacroAssembler::push_interpreter_frame(Register top_frame_size, Register parent_frame_resize,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	392 Register tmp1, Register tmp2, Register tmp3,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	393 Register tmp4, Register pc) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	394 assert_different_registers(top_frame_size, parent_frame_resize, tmp1, tmp2, tmp3, tmp4);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	395 ld(tmp1, _top_ijava_frame_abi(frame_manager_lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	396 mr(tmp2/top_frame_sp/, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	397 // Move initial_caller_sp.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	398 ld(tmp4, _top_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	399 neg(parent_frame_resize, parent_frame_resize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	400 resize_frame(parent_frame_resize/-parent_frame_resize/, tmp3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	401
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	402 // Set LR in new parent frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	403 std(tmp1, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	404 // Set top_frame_sp info for new parent frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	405 std(tmp2, _parent_ijava_frame_abi(top_frame_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	406 std(tmp4, _parent_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	407
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	408 // Push new TOP_IJAVA_FRAME.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	409 push_frame(top_frame_size, tmp2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	410
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	411 get_PC_trash_LR(tmp3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	412 std(tmp3, _top_ijava_frame_abi(frame_manager_lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	413 // Used for non-initial callers by unextended_sp().
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	414 std(R1_SP, _top_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	415 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	416
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	417 // Pop the topmost TOP_IJAVA_FRAME and convert the previous
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	418 // PARENT_IJAVA_FRAME back into a TOP_IJAVA_FRAME.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	419 void InterpreterMacroAssembler::pop_interpreter_frame(Register tmp1, Register tmp2, Register tmp3, Register tmp4) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	420 assert_different_registers(tmp1, tmp2, tmp3, tmp4);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	421
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	422 ld(tmp1/caller's sp/, _abi(callers_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	423 ld(tmp3, _abi(lr), tmp1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	424
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	425 ld(tmp4, _parent_ijava_frame_abi(initial_caller_sp), tmp1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	426
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	427 ld(tmp2/caller's caller's sp/, _abi(callers_sp), tmp1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	428 // Merge top frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	429 std(tmp2, _abi(callers_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	430
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	431 ld(tmp2, _parent_ijava_frame_abi(top_frame_sp), tmp1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	432
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	433 // Update C stack pointer to caller's top_abi.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	434 resize_frame_absolute(tmp2/addr/, tmp1/tmp/, tmp2/tmp/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	435
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	436 // Update LR in top_frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	437 std(tmp3, _top_ijava_frame_abi(frame_manager_lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	438
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	439 std(tmp4, _top_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	440
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	441 // Store the top-frame stack-pointer for c2i adapters.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	442 std(R1_SP, _top_ijava_frame_abi(top_frame_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	443 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	444
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	445 #ifdef CC_INTERP
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	446 // Turn state's interpreter frame into the current TOP_IJAVA_FRAME.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	447 void InterpreterMacroAssembler::pop_interpreter_frame_to_state(Register state, Register tmp1, Register tmp2, Register tmp3) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	448 assert_different_registers(R14_state, R15_prev_state, tmp1, tmp2, tmp3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	449
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	450 if (state == R14_state) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	451 ld(tmp1/state's fp/, state_(_last_Java_fp));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	452 ld(tmp2/state's sp/, state_(_last_Java_sp));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	453 } else if (state == R15_prev_state) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	454 ld(tmp1/state's fp/, prev_state_(_last_Java_fp));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	455 ld(tmp2/state's sp/, prev_state_(_last_Java_sp));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	456 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	457 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	458 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	459
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	460 // Merge top frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	461 std(tmp1, _abi(callers_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	462
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	463 // Tmp2 is new SP.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	464 // Tmp1 is parent's SP.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	465 resize_frame_absolute(tmp2/addr/, tmp1/tmp/, tmp2/tmp/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	466
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	467 // Update LR in top_frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	468 // Must be interpreter frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	469 get_PC_trash_LR(tmp3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	470 std(tmp3, _top_ijava_frame_abi(frame_manager_lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	471 // Used for non-initial callers by unextended_sp().
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	472 std(R1_SP, _top_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	473 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	474 #endif // CC_INTERP
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	475
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	476 // Set SP to initial caller's sp, but before fix the back chain.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	477 void InterpreterMacroAssembler::resize_frame_to_initial_caller(Register tmp1, Register tmp2) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	478 ld(tmp1, _parent_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	479 ld(tmp2, _parent_ijava_frame_abi(callers_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	480 std(tmp2, _parent_ijava_frame_abi(callers_sp), tmp1); // Fix back chain ...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	481 mr(R1_SP, tmp1); // ... and resize to initial caller.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	482 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	483
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	484 #ifdef CC_INTERP
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	485 // Pop the current interpreter state (without popping the correspoding
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	486 // frame) and restore R14_state and R15_prev_state accordingly.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	487 // Use prev_state_may_be_0 to indicate whether prev_state may be 0
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	488 // in order to generate an extra check before retrieving prev_state_(_prev_link).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	489 void InterpreterMacroAssembler::pop_interpreter_state(bool prev_state_may_be_0)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	490 {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	491 // Move prev_state to state and restore prev_state from state_(_prev_link).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	492 Label prev_state_is_0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	493 mr(R14_state, R15_prev_state);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	494
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	495 // Don't retrieve /state==/prev_state_(_prev_link)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	496 // if /state==/prev_state is 0.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	497 if (prev_state_may_be_0) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	498 cmpdi(CCR0, R15_prev_state, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	499 beq(CCR0, prev_state_is_0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	500 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	501
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	502 ld(R15_prev_state, /state==/prev_state_(_prev_link));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	503 bind(prev_state_is_0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	504 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	505
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	506 void InterpreterMacroAssembler::restore_prev_state() {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	507 // _prev_link is private, but cInterpreter is a friend.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	508 ld(R15_prev_state, state_(_prev_link));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	509 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM. goetz parents: diff changeset	510 #endif // CC_INTERP

Mercurial > hg > truffle

annotate src/cpu/ppc/vm/interp_masm_ppc_64.cpp @ 14643:ab8a5b82fe73