| /* |
| * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2014, Red Hat 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 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_AARCH64_VM_C1_DEFS_AARCH64_HPP |
| #define CPU_AARCH64_VM_C1_DEFS_AARCH64_HPP |
| |
| // native word offsets from memory address (little endian) |
| enum { |
| pd_lo_word_offset_in_bytes = 0, |
| pd_hi_word_offset_in_bytes = BytesPerWord |
| }; |
| |
| // explicit rounding operations are required to implement the strictFP mode |
| enum { |
| pd_strict_fp_requires_explicit_rounding = false |
| }; |
| |
| // FIXME: There are no callee-saved |
| |
| // registers |
| enum { |
| pd_nof_cpu_regs_frame_map = RegisterImpl::number_of_registers, // number of registers used during code emission |
| pd_nof_fpu_regs_frame_map = FloatRegisterImpl::number_of_registers, // number of registers used during code emission |
| |
| pd_nof_caller_save_cpu_regs_frame_map = 19 - 2, // number of registers killed by calls |
| pd_nof_caller_save_fpu_regs_frame_map = 32, // number of registers killed by calls |
| |
| pd_first_callee_saved_reg = 19 - 2, |
| pd_last_callee_saved_reg = 26 - 2, |
| |
| pd_last_allocatable_cpu_reg = 16, |
| |
| pd_nof_cpu_regs_reg_alloc |
| = pd_last_allocatable_cpu_reg + 1, // number of registers that are visible to register allocator |
| pd_nof_fpu_regs_reg_alloc = 8, // number of registers that are visible to register allocator |
| |
| pd_nof_cpu_regs_linearscan = 32, // number of registers visible to linear scan |
| pd_nof_fpu_regs_linearscan = pd_nof_fpu_regs_frame_map, // number of registers visible to linear scan |
| pd_nof_xmm_regs_linearscan = 0, // like sparc we don't have any of these |
| pd_first_cpu_reg = 0, |
| pd_last_cpu_reg = 16, |
| pd_first_byte_reg = 0, |
| pd_last_byte_reg = 16, |
| pd_first_fpu_reg = pd_nof_cpu_regs_frame_map, |
| pd_last_fpu_reg = pd_first_fpu_reg + 31, |
| |
| pd_first_callee_saved_fpu_reg = 8 + pd_first_fpu_reg, |
| pd_last_callee_saved_fpu_reg = 15 + pd_first_fpu_reg, |
| }; |
| |
| |
| // Encoding of float value in debug info. This is true on x86 where |
| // floats are extended to doubles when stored in the stack, false for |
| // AArch64 where floats and doubles are stored in their native form. |
| enum { |
| pd_float_saved_as_double = false |
| }; |
| |
| #endif // CPU_AARCH64_VM_C1_DEFS_AARCH64_HPP |