Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/register_x86.hpp @ 1837:c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
Summary: Inserted missing yield(check)s in closures used during the work-stealing phase of parallel concurrent marking, a missing synchronous yield-request in the cms perm gen allocation path, and a terminator-terminator for the offer_termination invocation that monitors the yield status of the concurrent marking task. Elaborated some documentation comments and made some task queue termination loop flags configurable at start-up to aid debugging in the field.
Reviewed-by: jmasa, johnc, poonam
author | ysr |
---|---|
date | Wed, 29 Sep 2010 16:17:02 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
2 * Copyright (c) 2000, 2007, 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:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
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:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 class VMRegImpl; | |
26 typedef VMRegImpl* VMReg; | |
27 | |
28 // Use Register as shortcut | |
29 class RegisterImpl; | |
30 typedef RegisterImpl* Register; | |
31 | |
32 | |
33 // The implementation of integer registers for the ia32 architecture | |
34 inline Register as_Register(int encoding) { | |
35 return (Register)(intptr_t) encoding; | |
36 } | |
37 | |
38 class RegisterImpl: public AbstractRegisterImpl { | |
39 public: | |
40 enum { | |
41 #ifndef AMD64 | |
42 number_of_registers = 8, | |
43 number_of_byte_registers = 4 | |
44 #else | |
45 number_of_registers = 16, | |
46 number_of_byte_registers = 16 | |
47 #endif // AMD64 | |
48 }; | |
49 | |
50 // derived registers, offsets, and addresses | |
51 Register successor() const { return as_Register(encoding() + 1); } | |
52 | |
53 // construction | |
54 inline friend Register as_Register(int encoding); | |
55 | |
56 VMReg as_VMReg(); | |
57 | |
58 // accessors | |
59 int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } | |
60 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } | |
61 bool has_byte_register() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_byte_registers; } | |
62 const char* name() const; | |
63 }; | |
64 | |
65 // The integer registers of the ia32/amd64 architecture | |
66 | |
67 CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1)); | |
68 | |
69 | |
70 CONSTANT_REGISTER_DECLARATION(Register, rax, (0)); | |
71 CONSTANT_REGISTER_DECLARATION(Register, rcx, (1)); | |
72 CONSTANT_REGISTER_DECLARATION(Register, rdx, (2)); | |
73 CONSTANT_REGISTER_DECLARATION(Register, rbx, (3)); | |
74 CONSTANT_REGISTER_DECLARATION(Register, rsp, (4)); | |
75 CONSTANT_REGISTER_DECLARATION(Register, rbp, (5)); | |
76 CONSTANT_REGISTER_DECLARATION(Register, rsi, (6)); | |
77 CONSTANT_REGISTER_DECLARATION(Register, rdi, (7)); | |
78 #ifdef AMD64 | |
79 CONSTANT_REGISTER_DECLARATION(Register, r8, (8)); | |
80 CONSTANT_REGISTER_DECLARATION(Register, r9, (9)); | |
81 CONSTANT_REGISTER_DECLARATION(Register, r10, (10)); | |
82 CONSTANT_REGISTER_DECLARATION(Register, r11, (11)); | |
83 CONSTANT_REGISTER_DECLARATION(Register, r12, (12)); | |
84 CONSTANT_REGISTER_DECLARATION(Register, r13, (13)); | |
85 CONSTANT_REGISTER_DECLARATION(Register, r14, (14)); | |
86 CONSTANT_REGISTER_DECLARATION(Register, r15, (15)); | |
87 #endif // AMD64 | |
88 | |
89 // Use FloatRegister as shortcut | |
90 class FloatRegisterImpl; | |
91 typedef FloatRegisterImpl* FloatRegister; | |
92 | |
93 inline FloatRegister as_FloatRegister(int encoding) { | |
94 return (FloatRegister)(intptr_t) encoding; | |
95 } | |
96 | |
97 // The implementation of floating point registers for the ia32 architecture | |
98 class FloatRegisterImpl: public AbstractRegisterImpl { | |
99 public: | |
100 enum { | |
101 number_of_registers = 8 | |
102 }; | |
103 | |
104 // construction | |
105 inline friend FloatRegister as_FloatRegister(int encoding); | |
106 | |
107 VMReg as_VMReg(); | |
108 | |
109 // derived registers, offsets, and addresses | |
110 FloatRegister successor() const { return as_FloatRegister(encoding() + 1); } | |
111 | |
112 // accessors | |
113 int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } | |
114 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } | |
115 const char* name() const; | |
116 | |
117 }; | |
118 | |
119 // Use XMMRegister as shortcut | |
120 class XMMRegisterImpl; | |
121 typedef XMMRegisterImpl* XMMRegister; | |
122 | |
123 // Use MMXRegister as shortcut | |
124 class MMXRegisterImpl; | |
125 typedef MMXRegisterImpl* MMXRegister; | |
126 | |
127 inline XMMRegister as_XMMRegister(int encoding) { | |
128 return (XMMRegister)(intptr_t)encoding; | |
129 } | |
130 | |
131 inline MMXRegister as_MMXRegister(int encoding) { | |
132 return (MMXRegister)(intptr_t)encoding; | |
133 } | |
134 | |
135 // The implementation of XMM registers for the IA32 architecture | |
136 class XMMRegisterImpl: public AbstractRegisterImpl { | |
137 public: | |
138 enum { | |
139 #ifndef AMD64 | |
140 number_of_registers = 8 | |
141 #else | |
142 number_of_registers = 16 | |
143 #endif // AMD64 | |
144 }; | |
145 | |
146 // construction | |
147 friend XMMRegister as_XMMRegister(int encoding); | |
148 | |
149 VMReg as_VMReg(); | |
150 | |
151 // derived registers, offsets, and addresses | |
152 XMMRegister successor() const { return as_XMMRegister(encoding() + 1); } | |
153 | |
154 // accessors | |
155 int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } | |
156 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } | |
157 const char* name() const; | |
158 }; | |
159 | |
160 | |
161 // The XMM registers, for P3 and up chips | |
162 CONSTANT_REGISTER_DECLARATION(XMMRegister, xnoreg , (-1)); | |
163 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm0 , ( 0)); | |
164 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm1 , ( 1)); | |
165 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm2 , ( 2)); | |
166 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm3 , ( 3)); | |
167 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm4 , ( 4)); | |
168 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm5 , ( 5)); | |
169 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm6 , ( 6)); | |
170 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm7 , ( 7)); | |
171 #ifdef AMD64 | |
172 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm8, (8)); | |
173 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm9, (9)); | |
174 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm10, (10)); | |
175 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm11, (11)); | |
176 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm12, (12)); | |
177 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm13, (13)); | |
178 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm14, (14)); | |
179 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm15, (15)); | |
180 #endif // AMD64 | |
181 | |
182 // Only used by the 32bit stubGenerator. These can't be described by vmreg and hence | |
183 // can't be described in oopMaps and therefore can't be used by the compilers (at least | |
184 // were deopt might wan't to see them). | |
185 | |
186 // The MMX registers, for P3 and up chips | |
187 CONSTANT_REGISTER_DECLARATION(MMXRegister, mnoreg , (-1)); | |
188 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx0 , ( 0)); | |
189 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx1 , ( 1)); | |
190 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx2 , ( 2)); | |
191 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx3 , ( 3)); | |
192 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx4 , ( 4)); | |
193 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx5 , ( 5)); | |
194 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx6 , ( 6)); | |
195 CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx7 , ( 7)); | |
196 | |
197 | |
198 // Need to know the total number of registers of all sorts for SharedInfo. | |
199 // Define a class that exports it. | |
200 class ConcreteRegisterImpl : public AbstractRegisterImpl { | |
201 public: | |
202 enum { | |
203 // A big enough number for C2: all the registers plus flags | |
204 // This number must be large enough to cover REG_COUNT (defined by c2) registers. | |
205 // There is no requirement that any ordering here matches any ordering c2 gives | |
206 // it's optoregs. | |
207 | |
208 number_of_registers = RegisterImpl::number_of_registers + | |
209 #ifdef AMD64 | |
210 RegisterImpl::number_of_registers + // "H" half of a 64bit register | |
211 #endif // AMD64 | |
212 2 * FloatRegisterImpl::number_of_registers + | |
213 2 * XMMRegisterImpl::number_of_registers + | |
214 1 // eflags | |
215 }; | |
216 | |
217 static const int max_gpr; | |
218 static const int max_fpr; | |
219 static const int max_xmm; | |
220 | |
221 }; |