src/cpu/x86/vm/c1_Defs_x86.hpp

Fri, 16 Aug 2019 16:50:17 +0200

author
eosterlund
date
Fri, 16 Aug 2019 16:50:17 +0200
changeset 9834
bb1da64b0492
parent 2344
ac637b7220d1
child 6876
710a3c8b516e
permissions
-rw-r--r--

8229345: Memory leak due to vtable stubs not being shared on SPARC
Reviewed-by: mdoerr, dholmes, kvn

     1 /*
     2  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef CPU_X86_VM_C1_DEFS_X86_HPP
    26 #define CPU_X86_VM_C1_DEFS_X86_HPP
    28 // native word offsets from memory address (little endian)
    29 enum {
    30   pd_lo_word_offset_in_bytes = 0,
    31   pd_hi_word_offset_in_bytes = BytesPerWord
    32 };
    34 // explicit rounding operations are required to implement the strictFP mode
    35 enum {
    36   pd_strict_fp_requires_explicit_rounding = true
    37 };
    40 // registers
    41 enum {
    42   pd_nof_cpu_regs_frame_map = RegisterImpl::number_of_registers,       // number of registers used during code emission
    43   pd_nof_fpu_regs_frame_map = FloatRegisterImpl::number_of_registers,  // number of registers used during code emission
    44   pd_nof_xmm_regs_frame_map = XMMRegisterImpl::number_of_registers,    // number of registers used during code emission
    46 #ifdef _LP64
    47   #define UNALLOCATED 4    // rsp, rbp, r15, r10
    48 #else
    49   #define UNALLOCATED 2    // rsp, rbp
    50 #endif // LP64
    52   pd_nof_caller_save_cpu_regs_frame_map = pd_nof_cpu_regs_frame_map - UNALLOCATED,  // number of registers killed by calls
    53   pd_nof_caller_save_fpu_regs_frame_map = pd_nof_fpu_regs_frame_map,  // number of registers killed by calls
    54   pd_nof_caller_save_xmm_regs_frame_map = pd_nof_xmm_regs_frame_map,  // number of registers killed by calls
    56   pd_nof_cpu_regs_reg_alloc = pd_nof_caller_save_cpu_regs_frame_map,  // number of registers that are visible to register allocator
    57   pd_nof_fpu_regs_reg_alloc = 6,  // number of registers that are visible to register allocator
    59   pd_nof_cpu_regs_linearscan = pd_nof_cpu_regs_frame_map, // number of registers visible to linear scan
    60   pd_nof_fpu_regs_linearscan = pd_nof_fpu_regs_frame_map, // number of registers visible to linear scan
    61   pd_nof_xmm_regs_linearscan = pd_nof_xmm_regs_frame_map, // number of registers visible to linear scan
    62   pd_first_cpu_reg = 0,
    63   pd_last_cpu_reg = NOT_LP64(5) LP64_ONLY(11),
    64   pd_first_byte_reg = NOT_LP64(2) LP64_ONLY(0),
    65   pd_last_byte_reg = NOT_LP64(5) LP64_ONLY(11),
    66   pd_first_fpu_reg = pd_nof_cpu_regs_frame_map,
    67   pd_last_fpu_reg =  pd_first_fpu_reg + 7,
    68   pd_first_xmm_reg = pd_nof_cpu_regs_frame_map + pd_nof_fpu_regs_frame_map,
    69   pd_last_xmm_reg =  pd_first_xmm_reg + pd_nof_xmm_regs_frame_map - 1
    70 };
    73 // encoding of float value in debug info:
    74 enum {
    75   pd_float_saved_as_double = true
    76 };
    78 #endif // CPU_X86_VM_C1_DEFS_X86_HPP

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