cafb36661d
These options have been long disabled in Xmixed mode because they prevent these small methods from being inlined and are subject to bit rot, and we don't need more macro assembler code to maintain and change if the constant pool cache format changes. Reviewed-by: simonis, kvn
120 lines
5.0 KiB
C++
120 lines
5.0 KiB
C++
/*
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* Copyright (c) 1997, 2014, Oracle and/or its affiliates. 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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#include "precompiled.hpp"
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#include "ci/ciMethod.hpp"
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#include "interpreter/interpreter.hpp"
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#include "runtime/frame.inline.hpp"
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#ifndef CC_INTERP
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// asm based interpreter deoptimization helpers
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int AbstractInterpreter::size_activation(int max_stack,
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int temps,
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int extra_args,
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int monitors,
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int callee_params,
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int callee_locals,
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bool is_top_frame) {
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// Note: This calculation must exactly parallel the frame setup
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// in InterpreterGenerator::generate_fixed_frame.
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// fixed size of an interpreter frame:
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int overhead = frame::sender_sp_offset -
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frame::interpreter_frame_initial_sp_offset;
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// Our locals were accounted for by the caller (or last_frame_adjust
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// on the transistion) Since the callee parameters already account
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// for the callee's params we only need to account for the extra
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// locals.
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int size = overhead +
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(callee_locals - callee_params)*Interpreter::stackElementWords +
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monitors * frame::interpreter_frame_monitor_size() +
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temps* Interpreter::stackElementWords + extra_args;
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return size;
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}
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void AbstractInterpreter::layout_activation(Method* method,
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int tempcount,
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int popframe_extra_args,
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int moncount,
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int caller_actual_parameters,
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int callee_param_count,
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int callee_locals,
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frame* caller,
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frame* interpreter_frame,
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bool is_top_frame,
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bool is_bottom_frame) {
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// The frame interpreter_frame is guaranteed to be the right size,
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// as determined by a previous call to the size_activation() method.
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// It is also guaranteed to be walkable even though it is in a
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// skeletal state
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int max_locals = method->max_locals() * Interpreter::stackElementWords;
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int extra_locals = (method->max_locals() - method->size_of_parameters()) *
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Interpreter::stackElementWords;
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#ifdef ASSERT
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assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable");
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#endif
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interpreter_frame->interpreter_frame_set_method(method);
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// NOTE the difference in using sender_sp and
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// interpreter_frame_sender_sp interpreter_frame_sender_sp is
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// the original sp of the caller (the unextended_sp) and
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// sender_sp is fp+8/16 (32bit/64bit) XXX
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intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
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#ifdef ASSERT
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if (caller->is_interpreted_frame()) {
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assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement");
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}
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#endif
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interpreter_frame->interpreter_frame_set_locals(locals);
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BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin();
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BasicObjectLock* monbot = montop - moncount;
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interpreter_frame->interpreter_frame_set_monitor_end(monbot);
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// Set last_sp
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intptr_t* esp = (intptr_t*) monbot -
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tempcount*Interpreter::stackElementWords -
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popframe_extra_args;
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interpreter_frame->interpreter_frame_set_last_sp(esp);
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// All frames but the initial (oldest) interpreter frame we fill in have
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// a value for sender_sp that allows walking the stack but isn't
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// truly correct. Correct the value here.
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if (extra_locals != 0 &&
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interpreter_frame->sender_sp() ==
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interpreter_frame->interpreter_frame_sender_sp()) {
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interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() +
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extra_locals);
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}
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*interpreter_frame->interpreter_frame_cache_addr() =
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method->constants()->cache();
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}
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#endif // CC_INTERP
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