Wed, 13 Apr 2011 14:33:03 -0700
6988308: assert((cnt > 0.0f) && (prob > 0.0f)) failed: Bad frequency assignment in if
Summary: Make sure cnt doesn't become negative and integer overflow doesn't happen.
Reviewed-by: kvn, twisti
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_OPTO_C2COMPILER_HPP |
stefank@2314 | 26 | #define SHARE_VM_OPTO_C2COMPILER_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "compiler/abstractCompiler.hpp" |
stefank@2314 | 29 | |
duke@435 | 30 | class C2Compiler : public AbstractCompiler { |
duke@435 | 31 | private: |
duke@435 | 32 | |
duke@435 | 33 | static void initialize_runtime(); |
duke@435 | 34 | |
duke@435 | 35 | public: |
duke@435 | 36 | // Name |
duke@435 | 37 | const char *name() { return "C2"; } |
duke@435 | 38 | |
duke@435 | 39 | static volatile int _runtimes; |
duke@435 | 40 | |
duke@435 | 41 | #ifdef TIERED |
duke@435 | 42 | virtual bool is_c2() { return true; }; |
duke@435 | 43 | #endif // TIERED |
duke@435 | 44 | |
duke@435 | 45 | // Customization |
duke@435 | 46 | bool needs_adapters () { return true; } |
duke@435 | 47 | bool needs_stubs () { return true; } |
duke@435 | 48 | |
duke@435 | 49 | void initialize(); |
duke@435 | 50 | |
duke@435 | 51 | // Compilation entry point for methods |
duke@435 | 52 | void compile_method(ciEnv* env, |
duke@435 | 53 | ciMethod* target, |
duke@435 | 54 | int entry_bci); |
duke@435 | 55 | |
duke@435 | 56 | // sentinel value used to trigger backtracking in compile_method(). |
duke@435 | 57 | static const char* retry_no_subsuming_loads(); |
kvn@473 | 58 | static const char* retry_no_escape_analysis(); |
duke@435 | 59 | |
duke@435 | 60 | // Print compilation timers and statistics |
duke@435 | 61 | void print_timers(); |
duke@435 | 62 | }; |
stefank@2314 | 63 | |
stefank@2314 | 64 | #endif // SHARE_VM_OPTO_C2COMPILER_HPP |