Mercurial > hg > graal-compiler
view src/share/vm/runtime/fieldType.hpp @ 1634:60a14ad85270
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
Summary: Execute IGVN optimization before and after Escape Analysis
Reviewed-by: never
author | kvn |
---|---|
date | Fri, 02 Jul 2010 17:30:30 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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/* * Copyright (c) 1997, 2002, 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 * or visit www.oracle.com if you need additional information or have any * questions. * */ // Note: FieldType should be based on the SignatureIterator (or vice versa). // In any case, this structure should be re-thought at some point. // A FieldType is used to determine the type of a field from a signature string. class FieldType: public AllStatic { private: static void skip_optional_size(symbolOop signature, int* index); static bool is_valid_array_signature(symbolOop signature); public: // Return basic type static BasicType basic_type(symbolOop signature); // Testing static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); } static bool is_obj(symbolOop signature) { int sig_length = signature->utf8_length(); // Must start with 'L' and end with ';' return (sig_length >= 2 && (signature->byte_at(0) == 'L') && (signature->byte_at(sig_length - 1) == ';')); } // Parse field and extract array information. Works for T_ARRAY only. static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS); };