1 /* 2 * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_OPTO_C2COMPILER_HPP 26 #define SHARE_OPTO_C2COMPILER_HPP 27 28 #include "compiler/abstractCompiler.hpp" 29 #include "opto/output.hpp" 30 31 class C2Compiler : public AbstractCompiler { 32 private: 33 static bool init_c2_runtime(); 34 35 public: C2Compiler()36 C2Compiler() : AbstractCompiler(compiler_c2) {} 37 38 // Name name()39 const char *name() { return "C2"; } 40 void initialize(); 41 42 // Compilation entry point for methods 43 void compile_method(ciEnv* env, 44 ciMethod* target, 45 int entry_bci, 46 bool install_code, 47 DirectiveSet* directive); 48 49 // sentinel value used to trigger backtracking in compile_method(). 50 static const char* retry_no_subsuming_loads(); 51 static const char* retry_no_escape_analysis(); 52 static const char* retry_class_loading_during_parsing(); 53 54 // Print compilation timers and statistics 55 void print_timers(); 56 57 // Return true if the intrinsification of a method supported by the compiler 58 // assuming a non-virtual dispatch. (A virtual dispatch is 59 // possible for only a limited set of available intrinsics whereas 60 // a non-virtual dispatch is possible for all available intrinsics.) 61 // Return false otherwise. is_intrinsic_supported(const methodHandle & method)62 virtual bool is_intrinsic_supported(const methodHandle& method) { 63 return is_intrinsic_supported(method, false); 64 } 65 66 // Check if the compiler supports an intrinsic for 'method' given the 67 // the dispatch mode specified by the 'is_virtual' parameter. 68 bool is_intrinsic_supported(const methodHandle& method, bool is_virtual); 69 70 // Initial size of the code buffer (may be increased at runtime) 71 static int initial_code_buffer_size(int const_size = initial_const_capacity); 72 }; 73 74 #endif // SHARE_OPTO_C2COMPILER_HPP 75