Mercurial > hg > truffle
view src/cpu/x86/vm/registerMap_x86.cpp @ 21885:c869a5c3da16
made access to CompilerToVM from PrintStreamOption lazy to resolve initialization issue
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 09 Jun 2015 20:36:45 +0200 |
parents | 658db9861109 |
children |
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/* * Copyright (c) 2015, 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. * */ #include "precompiled.hpp" #include <runtime/registerMap.hpp> #include "vmreg_x86.inline.hpp" address RegisterMap::pd_location(VMReg reg) const { if (reg->is_XMMRegister()) { int regBase = reg->value() - ConcreteRegisterImpl::max_fpr; if (regBase % 4 == 0) { // Reads of the low and high 16 byte parts should be handled by location itself return NULL; } VMReg baseReg = as_XMMRegister(regBase >> 3)->as_VMReg(); intptr_t offset = (reg->value() - baseReg->value()) * 4; if (offset >= 16) { // The high part of YMM registers are saved in a their own area in the frame baseReg = baseReg->next()->next()->next()->next(); offset -= 16; } address baseLocation = location(baseReg); if (baseLocation != NULL) { return baseLocation + offset; } } return NULL; }