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8260355: AArch64: deoptimization stub should save vector registers
Reviewed-by: vlivanov, aph
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| /* | ||
| * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. | ||
| * Copyright (c) 2021, Arm Limited. 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_aarch64.inline.hpp" | ||
|
|
||
| address RegisterMap::pd_location(VMReg base_reg, int slot_idx) const { | ||
| if (base_reg->is_FloatRegister()) { | ||
| // Not all physical slots of an SVE register have corresponding | ||
| // VMRegs. However they are always saved to the stack in a | ||
| // contiguous region of memory so we can calculate the address of | ||
| // the upper slots by offsetting from the base address. | ||
| assert(base_reg->is_concrete(), "must pass base reg"); | ||
| int base_reg_enc = (base_reg->value() - ConcreteRegisterImpl::max_gpr) / | ||
| FloatRegisterImpl::max_slots_per_register; | ||
| intptr_t offset_in_bytes = slot_idx * VMRegImpl::stack_slot_size; | ||
| address base_location = location(base_reg); | ||
| if (base_location != NULL) { | ||
| return base_location + offset_in_bytes; | ||
| } else { | ||
| return NULL; | ||
| } | ||
| } else { | ||
| return location(base_reg->next(slot_idx)); | ||
| } | ||
| } |
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