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annotate src/cpu/x86/vm/c1_Defs_x86.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 9ee9cf798b59 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 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 }; | |
| 30 | |
| 31 // explicit rounding operations are required to implement the strictFP mode | |
| 32 enum { | |
| 33 pd_strict_fp_requires_explicit_rounding = true | |
| 34 }; | |
| 35 | |
| 36 | |
| 37 // registers | |
| 38 enum { | |
| 304 | 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 | |
| 0 | 42 |
| 304 | 43 #ifdef _LP64 |
| 44 #define UNALLOCATED 4 // rsp, rbp, r15, r10 | |
| 45 #else | |
| 46 #define UNALLOCATED 2 // rsp, rbp | |
| 47 #endif // LP64 | |
| 48 | |
| 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 | |
| 52 | |
| 53 pd_nof_cpu_regs_reg_alloc = pd_nof_caller_save_cpu_regs_frame_map, // number of registers that are visible to register allocator | |
| 0 | 54 pd_nof_fpu_regs_reg_alloc = 6, // number of registers that are visible to register allocator |
| 55 | |
| 304 | 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 | |
| 0 | 59 pd_first_cpu_reg = 0, |
| 304 | 60 pd_last_cpu_reg = NOT_LP64(5) LP64_ONLY(11), |
| 0 | 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, | |
| 304 | 66 pd_last_xmm_reg = pd_first_xmm_reg + pd_nof_xmm_regs_frame_map - 1 |
| 0 | 67 }; |
| 68 | |
| 69 | |
| 70 // encoding of float value in debug info: | |
| 71 enum { | |
| 72 pd_float_saved_as_double = true | |
| 73 }; |