Mercurial > hg > truffle
view src/cpu/x86/vm/stubRoutines_x86_32.hpp @ 17877:17b2fbdb6637
8038297: Avoid placing CTI immediately following cbcond instruction on T4
Summary: Insert a nop between cbcond and CTI
Reviewed-by: kvn, twisti
author | iveresov |
---|---|
date | Thu, 10 Apr 2014 23:15:13 -0700 |
parents | b800986664f4 |
children |
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/* * Copyright (c) 1997, 2013, 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. * */ #ifndef CPU_X86_VM_STUBROUTINES_X86_32_HPP #define CPU_X86_VM_STUBROUTINES_X86_32_HPP // This file holds the platform specific parts of the StubRoutines // definition. See stubRoutines.hpp for a description on how to // extend it. enum platform_dependent_constants { code_size1 = 9000, // simply increase if too small (assembler will crash if too small) code_size2 = 22000 // simply increase if too small (assembler will crash if too small) }; class x86 { friend class StubGenerator; friend class VMStructs; private: static address _verify_fpu_cntrl_wrd_entry; public: static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } # include "stubRoutines_x86.hpp" }; static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } #endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP