Mercurial > hg > graal-compiler
view src/cpu/zero/vm/stack_zero.inline.hpp @ 4652:bdf2eb70ef3e
Kill CallTargetNode and FrameState in killCFG to avoid keeping some invalid nodes alive
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Mon, 20 Feb 2012 19:19:12 +0100 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2010 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. * */ #ifndef CPU_ZERO_VM_STACK_ZERO_INLINE_HPP #define CPU_ZERO_VM_STACK_ZERO_INLINE_HPP #include "runtime/thread.hpp" #include "stack_zero.hpp" // This function should match SharkStack::CreateStackOverflowCheck inline void ZeroStack::overflow_check(int required_words, TRAPS) { // Check the Zero stack if (available_words() < required_words) { handle_overflow(THREAD); return; } // Check the ABI stack if (abi_stack_available(THREAD) < 0) { handle_overflow(THREAD); return; } } // This method returns the amount of ABI stack available for us // to use under normal circumstances. Note that the returned // value can be negative. inline int ZeroStack::abi_stack_available(Thread *thread) const { int stack_used = thread->stack_base() - (address) &stack_used; int stack_free = thread->stack_size() - stack_used; return stack_free - shadow_pages_size(); } #endif // CPU_ZERO_VM_STACK_ZERO_INLINE_HPP