Mercurial > hg > truffle
annotate src/cpu/x86/vm/c1_Defs_x86.hpp @ 2013:ec8c74742417
7005241: C1: SEGV in java.util.concurrent.LinkedTransferQueue.xfer() with compressed oops
Summary: Implementation of the CAS primitive for x64 compressed oops was incorrect. It kills rscratch2 register (r11), which is allocatable in C1. Also, we don't need to restore cmpval as it's never used after that, so we need only one temporary register, which can be scratch1.
Reviewed-by: kvn, never
| author | iveresov |
|---|---|
| date | Wed, 08 Dec 2010 02:36:36 -0800 |
| parents | ac637b7220d1 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2000, 2010, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef CPU_X86_VM_C1_DEFS_X86_HPP |
| 26 #define CPU_X86_VM_C1_DEFS_X86_HPP | |
| 27 | |
| 0 | 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 }; | |
| 33 | |
| 34 // explicit rounding operations are required to implement the strictFP mode | |
| 35 enum { | |
| 36 pd_strict_fp_requires_explicit_rounding = true | |
| 37 }; | |
| 38 | |
| 39 | |
| 40 // registers | |
| 41 enum { | |
| 304 | 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 | |
| 0 | 45 |
| 304 | 46 #ifdef _LP64 |
| 47 #define UNALLOCATED 4 // rsp, rbp, r15, r10 | |
| 48 #else | |
| 49 #define UNALLOCATED 2 // rsp, rbp | |
| 50 #endif // LP64 | |
| 51 | |
| 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 | |
| 55 | |
| 56 pd_nof_cpu_regs_reg_alloc = pd_nof_caller_save_cpu_regs_frame_map, // number of registers that are visible to register allocator | |
| 0 | 57 pd_nof_fpu_regs_reg_alloc = 6, // number of registers that are visible to register allocator |
| 58 | |
| 304 | 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 | |
| 0 | 62 pd_first_cpu_reg = 0, |
| 304 | 63 pd_last_cpu_reg = NOT_LP64(5) LP64_ONLY(11), |
| 2002 | 64 pd_first_byte_reg = NOT_LP64(2) LP64_ONLY(0), |
| 65 pd_last_byte_reg = NOT_LP64(5) LP64_ONLY(11), | |
| 0 | 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, | |
| 304 | 69 pd_last_xmm_reg = pd_first_xmm_reg + pd_nof_xmm_regs_frame_map - 1 |
| 0 | 70 }; |
| 71 | |
| 72 | |
| 73 // encoding of float value in debug info: | |
| 74 enum { | |
| 75 pd_float_saved_as_double = true | |
| 76 }; | |
| 1972 | 77 |
| 78 #endif // CPU_X86_VM_C1_DEFS_X86_HPP |