/* * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved. * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *
*/
int AbstractInterpreter::BasicType_as_index(BasicType type) { int i = 0; switch (type) { case T_BOOLEAN: i = 0; break; case T_CHAR : i = 1; break; case T_BYTE : i = 2; break; case T_SHORT : i = 3; break; case T_INT : i = 4; break; case T_LONG : i = 5; break; case T_VOID : i = 6; break; case T_FLOAT : i = 7; break; case T_DOUBLE : i = 8; break; case T_OBJECT : i = 9; break; case T_ARRAY : i = 9; break; default : ShouldNotReachHere();
}
assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); return i;
}
// Deoptimization helpers
int AbstractInterpreter::size_activation(int max_stack, int tempcount, int extra_args, int moncount, int callee_param_count, int callee_locals, bool is_top_frame) { int header_words = InterpreterFrame::header_words; int monitor_words = moncount * frame::interpreter_frame_monitor_size(); int stack_words = is_top_frame ? max_stack : tempcount; int callee_extra_locals = callee_locals - callee_param_count;
void AbstractInterpreter::layout_activation(Method* method, int tempcount, int popframe_extra_args, int moncount, int caller_actual_parameters, int callee_param_count, int callee_locals,
frame* caller,
frame* interpreter_frame, bool is_top_frame, bool is_bottom_frame) {
assert(popframe_extra_args == 0, "what to do?");
assert(!is_top_frame || (!callee_locals && !callee_param_count), "top frame should have no caller");
// This code must exactly match what InterpreterFrame::build // does (the full InterpreterFrame::build, that is, not the // one that creates empty frames for the deoptimizer). // // interpreter_frame will be filled in. It's size is determined by // a previous call to the size_activation() method, // // Note that tempcount is the current size of the expression // stack. For top most frames we will allocate a full sized // expression stack and not the trimmed version that non-top // frames have.
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