1692
|
1 /*
|
|
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
|
|
3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
|
|
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
5 *
|
|
6 * This code is free software; you can redistribute it and/or modify it
|
|
7 * under the terms of the GNU General Public License version 2 only, as
|
|
8 * published by the Free Software Foundation.
|
|
9 *
|
|
10 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
13 * version 2 for more details (a copy is included in the LICENSE file that
|
|
14 * accompanied this code).
|
|
15 *
|
|
16 * You should have received a copy of the GNU General Public License version
|
|
17 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
19 *
|
|
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
21 * or visit www.oracle.com if you need additional information or have any
|
|
22 * questions.
|
|
23 *
|
|
24 */
|
|
25
|
|
26 class SharkFunction;
|
|
27 class SharkNativeWrapper;
|
|
28 class SharkStackWithNormalFrame;
|
|
29 class SharkStackWithNativeFrame;
|
|
30
|
|
31 class SharkStack : public SharkCompileInvariants {
|
|
32 public:
|
|
33 static SharkStack* CreateBuildAndPushFrame(
|
|
34 SharkFunction* function, llvm::Value* method);
|
|
35 static SharkStack* CreateBuildAndPushFrame(
|
|
36 SharkNativeWrapper* wrapper, llvm::Value* method);
|
|
37
|
|
38 protected:
|
|
39 SharkStack(const SharkCompileInvariants* parent)
|
|
40 : SharkCompileInvariants(parent) {}
|
|
41
|
|
42 protected:
|
|
43 void initialize(llvm::Value* method);
|
|
44
|
|
45 protected:
|
|
46 void CreateStackOverflowCheck(llvm::Value* sp);
|
|
47
|
|
48 // Properties of the method being compiled
|
|
49 protected:
|
|
50 virtual int arg_size() const = 0;
|
|
51 virtual int max_locals() const = 0;
|
|
52 virtual int max_stack() const = 0;
|
|
53 virtual int max_monitors() const = 0;
|
|
54
|
|
55 // BasicBlock creation
|
|
56 protected:
|
|
57 virtual llvm::BasicBlock* CreateBlock(const char* name = "") const = 0;
|
|
58
|
|
59 // Interpreter entry point for bailouts
|
|
60 protected:
|
|
61 virtual address interpreter_entry_point() const = 0;
|
|
62
|
|
63 // Interface with the Zero stack
|
|
64 private:
|
|
65 llvm::Value* zero_stack() const {
|
|
66 return builder()->CreateAddressOfStructEntry(
|
|
67 thread(),
|
|
68 JavaThread::zero_stack_offset(),
|
|
69 SharkType::zeroStack_type(),
|
|
70 "zero_stack");
|
|
71 }
|
|
72 llvm::Value* stack_base() const {
|
|
73 return builder()->CreateValueOfStructEntry(
|
|
74 zero_stack(),
|
|
75 ZeroStack::base_offset(),
|
|
76 SharkType::intptr_type(),
|
|
77 "stack_base");
|
|
78 }
|
|
79 llvm::Value* stack_pointer_addr() const {
|
|
80 return builder()->CreateAddressOfStructEntry(
|
|
81 zero_stack(),
|
|
82 ZeroStack::sp_offset(),
|
|
83 llvm::PointerType::getUnqual(SharkType::intptr_type()),
|
|
84 "stack_pointer_addr");
|
|
85 }
|
|
86 llvm::Value* frame_pointer_addr() const {
|
|
87 return builder()->CreateAddressOfStructEntry(
|
|
88 thread(),
|
|
89 JavaThread::top_zero_frame_offset(),
|
|
90 llvm::PointerType::getUnqual(SharkType::intptr_type()),
|
|
91 "frame_pointer_addr");
|
|
92 }
|
|
93
|
|
94 public:
|
|
95 llvm::LoadInst* CreateLoadStackPointer(const char *name = "") {
|
|
96 return builder()->CreateLoad(stack_pointer_addr(), name);
|
|
97 }
|
|
98 llvm::StoreInst* CreateStoreStackPointer(llvm::Value* value) {
|
|
99 return builder()->CreateStore(value, stack_pointer_addr());
|
|
100 }
|
|
101 llvm::LoadInst* CreateLoadFramePointer(const char *name = "") {
|
|
102 return builder()->CreateLoad(frame_pointer_addr(), name);
|
|
103 }
|
|
104 llvm::StoreInst* CreateStoreFramePointer(llvm::Value* value) {
|
|
105 return builder()->CreateStore(value, frame_pointer_addr());
|
|
106 }
|
|
107 llvm::Value* CreatePopFrame(int result_slots);
|
|
108
|
|
109 // Interface with the frame anchor
|
|
110 private:
|
|
111 llvm::Value* last_Java_sp_addr() const {
|
|
112 return builder()->CreateAddressOfStructEntry(
|
|
113 thread(),
|
|
114 JavaThread::last_Java_sp_offset(),
|
|
115 llvm::PointerType::getUnqual(SharkType::intptr_type()),
|
|
116 "last_Java_sp_addr");
|
|
117 }
|
|
118 llvm::Value* last_Java_fp_addr() const {
|
|
119 return builder()->CreateAddressOfStructEntry(
|
|
120 thread(),
|
|
121 JavaThread::last_Java_fp_offset(),
|
|
122 llvm::PointerType::getUnqual(SharkType::intptr_type()),
|
|
123 "last_Java_fp_addr");
|
|
124 }
|
|
125
|
|
126 public:
|
|
127 void CreateSetLastJavaFrame() {
|
|
128 // Note that whenever _last_Java_sp != NULL other anchor fields
|
|
129 // must be valid. The profiler apparently depends on this.
|
|
130 NOT_PRODUCT(CreateAssertLastJavaSPIsNull());
|
|
131 builder()->CreateStore(CreateLoadFramePointer(), last_Java_fp_addr());
|
|
132 // XXX There's last_Java_pc as well, but I don't think anything uses it
|
|
133 // Also XXX: should we fence here? Zero doesn't...
|
|
134 builder()->CreateStore(CreateLoadStackPointer(), last_Java_sp_addr());
|
|
135 // Also also XXX: we could probably cache the sp (and the fp we know??)
|
|
136 }
|
|
137 void CreateResetLastJavaFrame() {
|
|
138 builder()->CreateStore(LLVMValue::intptr_constant(0), last_Java_sp_addr());
|
|
139 }
|
|
140
|
|
141 private:
|
|
142 void CreateAssertLastJavaSPIsNull() const PRODUCT_RETURN;
|
|
143
|
|
144 // Our method's frame
|
|
145 private:
|
|
146 llvm::Value* _frame;
|
|
147 int _extended_frame_size;
|
|
148 int _stack_slots_offset;
|
|
149
|
|
150 public:
|
|
151 int extended_frame_size() const {
|
|
152 return _extended_frame_size;
|
|
153 }
|
|
154 int oopmap_frame_size() const {
|
|
155 return extended_frame_size() - arg_size();
|
|
156 }
|
|
157
|
|
158 // Offsets of things in the frame
|
|
159 private:
|
|
160 int _monitors_slots_offset;
|
|
161 int _oop_tmp_slot_offset;
|
|
162 int _method_slot_offset;
|
|
163 int _pc_slot_offset;
|
|
164 int _locals_slots_offset;
|
|
165
|
|
166 public:
|
|
167 int stack_slots_offset() const {
|
|
168 return _stack_slots_offset;
|
|
169 }
|
|
170 int oop_tmp_slot_offset() const {
|
|
171 return _oop_tmp_slot_offset;
|
|
172 }
|
|
173 int method_slot_offset() const {
|
|
174 return _method_slot_offset;
|
|
175 }
|
|
176 int pc_slot_offset() const {
|
|
177 return _pc_slot_offset;
|
|
178 }
|
|
179 int locals_slots_offset() const {
|
|
180 return _locals_slots_offset;
|
|
181 }
|
|
182 int monitor_offset(int index) const {
|
|
183 assert(index >= 0 && index < max_monitors(), "invalid monitor index");
|
|
184 return _monitors_slots_offset +
|
|
185 (max_monitors() - 1 - index) * frame::interpreter_frame_monitor_size();
|
|
186 }
|
|
187 int monitor_object_offset(int index) const {
|
|
188 return monitor_offset(index) +
|
|
189 (BasicObjectLock::obj_offset_in_bytes() >> LogBytesPerWord);
|
|
190 }
|
|
191 int monitor_header_offset(int index) const {
|
|
192 return monitor_offset(index) +
|
|
193 ((BasicObjectLock::lock_offset_in_bytes() +
|
|
194 BasicLock::displaced_header_offset_in_bytes()) >> LogBytesPerWord);
|
|
195 }
|
|
196
|
|
197 // Addresses of things in the frame
|
|
198 public:
|
|
199 llvm::Value* slot_addr(int offset,
|
|
200 const llvm::Type* type = NULL,
|
|
201 const char* name = "") const;
|
|
202
|
|
203 llvm::Value* monitor_addr(int index) const {
|
|
204 return slot_addr(
|
|
205 monitor_offset(index),
|
|
206 SharkType::monitor_type(),
|
|
207 "monitor");
|
|
208 }
|
|
209 llvm::Value* monitor_object_addr(int index) const {
|
|
210 return slot_addr(
|
|
211 monitor_object_offset(index),
|
|
212 SharkType::oop_type(),
|
|
213 "object_addr");
|
|
214 }
|
|
215 llvm::Value* monitor_header_addr(int index) const {
|
|
216 return slot_addr(
|
|
217 monitor_header_offset(index),
|
|
218 SharkType::intptr_type(),
|
|
219 "displaced_header_addr");
|
|
220 }
|
|
221
|
|
222 // oopmap helpers
|
|
223 public:
|
|
224 static int oopmap_slot_munge(int offset) {
|
|
225 return offset << (LogBytesPerWord - LogBytesPerInt);
|
|
226 }
|
|
227 static VMReg slot2reg(int offset) {
|
|
228 return VMRegImpl::stack2reg(oopmap_slot_munge(offset));
|
|
229 }
|
|
230 };
|
|
231
|
|
232 class SharkStackWithNormalFrame : public SharkStack {
|
|
233 friend class SharkStack;
|
|
234
|
|
235 protected:
|
|
236 SharkStackWithNormalFrame(SharkFunction* function, llvm::Value* method);
|
|
237
|
|
238 private:
|
|
239 SharkFunction* _function;
|
|
240
|
|
241 private:
|
|
242 SharkFunction* function() const {
|
|
243 return _function;
|
|
244 }
|
|
245
|
|
246 // Properties of the method being compiled
|
|
247 private:
|
|
248 int arg_size() const;
|
|
249 int max_locals() const;
|
|
250 int max_stack() const;
|
|
251 int max_monitors() const;
|
|
252
|
|
253 // BasicBlock creation
|
|
254 private:
|
|
255 llvm::BasicBlock* CreateBlock(const char* name = "") const;
|
|
256
|
|
257 // Interpreter entry point for bailouts
|
|
258 private:
|
|
259 address interpreter_entry_point() const;
|
|
260 };
|
|
261
|
|
262 class SharkStackWithNativeFrame : public SharkStack {
|
|
263 friend class SharkStack;
|
|
264
|
|
265 protected:
|
|
266 SharkStackWithNativeFrame(SharkNativeWrapper* wrapper, llvm::Value* method);
|
|
267
|
|
268 private:
|
|
269 SharkNativeWrapper* _wrapper;
|
|
270
|
|
271 private:
|
|
272 SharkNativeWrapper* wrapper() const {
|
|
273 return _wrapper;
|
|
274 }
|
|
275
|
|
276 // Properties of the method being compiled
|
|
277 private:
|
|
278 int arg_size() const;
|
|
279 int max_locals() const;
|
|
280 int max_stack() const;
|
|
281 int max_monitors() const;
|
|
282
|
|
283 // BasicBlock creation
|
|
284 private:
|
|
285 llvm::BasicBlock* CreateBlock(const char* name = "") const;
|
|
286
|
|
287 // Interpreter entry point for bailouts
|
|
288 private:
|
|
289 address interpreter_entry_point() const;
|
|
290 };
|