Mercurial > hg > graal-jvmci-8
view src/cpu/sparc/vm/registerMap_sparc.hpp @ 222:2a1a77d3458f
6718676: putback for 6604014 is incomplete
Reviewed-by: kvn, jrose
author | never |
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date | Tue, 24 Jun 2008 16:00:14 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1998-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // machine-dependent implemention for register maps friend class frame; private: intptr_t* _window; // register window save area (for L and I regs) intptr_t* _younger_window; // previous save area (for O regs, if needed) address pd_location(VMReg reg) const; void pd_clear(); void pd_initialize_from(const RegisterMap* map) { _window = map->_window; _younger_window = map->_younger_window; _location_valid[0] = 0; // avoid the shift_individual_registers game } void pd_initialize() { _window = NULL; _younger_window = NULL; _location_valid[0] = 0; // avoid the shift_individual_registers game } void shift_window(intptr_t* sp, intptr_t* younger_sp) { _window = sp; _younger_window = younger_sp; // Throw away locations for %i, %o, and %l registers: // But do not throw away %g register locs. if (_location_valid[0] != 0) shift_individual_registers(); } void shift_individual_registers(); // When popping out of compiled frames, we make all IRegs disappear. void make_integer_regs_unsaved() { _location_valid[0] = 0; }