Mercurial > hg > graal-compiler
view src/cpu/ppc/vm/icache_ppc.hpp @ 14436:b0133e4187d3
8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization.
Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected.
Reviewed-by: kvn
author | goetz |
---|---|
date | Thu, 21 Nov 2013 18:29:34 -0800 |
parents | ec28f9c041ff |
children | 67fa91961822 |
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/* * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright 2012, 2013 SAP AG. 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. * */ #ifndef CPU_PPC_VM_ICACHE_PPC_HPP #define CPU_PPC_VM_ICACHE_PPC_HPP // Interface for updating the instruction cache. Whenever the VM modifies // code, part of the processor instruction cache potentially has to be flushed. class ICache : public AbstractICache { public: enum { // On PowerPC the cache line size is 32 bytes. stub_size = 160, // Size of the icache flush stub in bytes. line_size = 32, // Flush instruction affects 32 bytes. log2_line_size = 5 // log2(line_size) }; // Use default implementation }; #endif // CPU_PPC_VM_ICACHE_PPC_HPP