src/cpu/x86/vm/c1_Defs_x86.hpp

Mon, 04 Jan 2010 18:38:08 +0100

author
twisti
date
Mon, 04 Jan 2010 18:38:08 +0100
changeset 1570
e66fd840cb6b
parent 772
9ee9cf798b59
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
Summary: During the work for 6829187 we have fixed a number of basic bugs which are logically grouped with 6815692 and 6858164 but which must be reviewed and pushed separately.
Reviewed-by: kvn, never

     1 /*
     2  * Copyright 2000-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 // native word offsets from memory address (little endian)
    26 enum {
    27   pd_lo_word_offset_in_bytes = 0,
    28   pd_hi_word_offset_in_bytes = BytesPerWord
    29 };
    31 // explicit rounding operations are required to implement the strictFP mode
    32 enum {
    33   pd_strict_fp_requires_explicit_rounding = true
    34 };
    37 // registers
    38 enum {
    39   pd_nof_cpu_regs_frame_map = RegisterImpl::number_of_registers,       // number of registers used during code emission
    40   pd_nof_fpu_regs_frame_map = FloatRegisterImpl::number_of_registers,  // number of registers used during code emission
    41   pd_nof_xmm_regs_frame_map = XMMRegisterImpl::number_of_registers,    // number of registers used during code emission
    43 #ifdef _LP64
    44   #define UNALLOCATED 4    // rsp, rbp, r15, r10
    45 #else
    46   #define UNALLOCATED 2    // rsp, rbp
    47 #endif // LP64
    49   pd_nof_caller_save_cpu_regs_frame_map = pd_nof_cpu_regs_frame_map - UNALLOCATED,  // number of registers killed by calls
    50   pd_nof_caller_save_fpu_regs_frame_map = pd_nof_fpu_regs_frame_map,  // number of registers killed by calls
    51   pd_nof_caller_save_xmm_regs_frame_map = pd_nof_xmm_regs_frame_map,  // number of registers killed by calls
    53   pd_nof_cpu_regs_reg_alloc = pd_nof_caller_save_cpu_regs_frame_map,  // number of registers that are visible to register allocator
    54   pd_nof_fpu_regs_reg_alloc = 6,  // number of registers that are visible to register allocator
    56   pd_nof_cpu_regs_linearscan = pd_nof_cpu_regs_frame_map, // number of registers visible to linear scan
    57   pd_nof_fpu_regs_linearscan = pd_nof_fpu_regs_frame_map, // number of registers visible to linear scan
    58   pd_nof_xmm_regs_linearscan = pd_nof_xmm_regs_frame_map, // number of registers visible to linear scan
    59   pd_first_cpu_reg = 0,
    60   pd_last_cpu_reg = NOT_LP64(5) LP64_ONLY(11),
    61   pd_first_byte_reg = 2,
    62   pd_last_byte_reg = 5,
    63   pd_first_fpu_reg = pd_nof_cpu_regs_frame_map,
    64   pd_last_fpu_reg =  pd_first_fpu_reg + 7,
    65   pd_first_xmm_reg = pd_nof_cpu_regs_frame_map + pd_nof_fpu_regs_frame_map,
    66   pd_last_xmm_reg =  pd_first_xmm_reg + pd_nof_xmm_regs_frame_map - 1
    67 };
    70 // encoding of float value in debug info:
    71 enum {
    72   pd_float_saved_as_double = true
    73 };

mercurial