8055530: assert(_exits.control()->is_top() || !_gvn.type(ret_phi)->empty()) failed: return value must be well defined
Summary: concurrent class loading causes return phi to become top
Reviewed-by: kvn
/*
* Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
* 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
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*/
#ifndef SHARE_VM_OPTO_C2COMPILER_HPP
#define SHARE_VM_OPTO_C2COMPILER_HPP
#include "compiler/abstractCompiler.hpp"
class C2Compiler : public AbstractCompiler {
private:
static bool init_c2_runtime();
public:
C2Compiler() : AbstractCompiler(c2) {}
// Name
const char *name() { return "C2"; }
void initialize();
// Compilation entry point for methods
void compile_method(ciEnv* env,
ciMethod* target,
int entry_bci);
// sentinel value used to trigger backtracking in compile_method().
static const char* retry_no_subsuming_loads();
static const char* retry_no_escape_analysis();
static const char* retry_class_loading_during_parsing();
// Print compilation timers and statistics
void print_timers();
// Initial size of the code buffer (may be increased at runtime)
static int initial_code_buffer_size();
};
#endif // SHARE_VM_OPTO_C2COMPILER_HPP