Mercurial > hg > truffle
annotate src/share/vm/opto/subnode.hpp @ 21201:5b913e452629
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author | Josef Eisl <josef.eisl@jku.at> |
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date | Wed, 29 Apr 2015 13:19:43 +0200 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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 | |
1972 | 25 #ifndef SHARE_VM_OPTO_SUBNODE_HPP |
26 #define SHARE_VM_OPTO_SUBNODE_HPP | |
27 | |
28 #include "opto/node.hpp" | |
29 #include "opto/opcodes.hpp" | |
30 #include "opto/type.hpp" | |
31 | |
0 | 32 // Portions of code courtesy of Clifford Click |
33 | |
34 //------------------------------SUBNode---------------------------------------- | |
35 // Class SUBTRACTION functionality. This covers all the usual 'subtract' | |
36 // behaviors. Subtract-integer, -float, -double, binary xor, compare-integer, | |
37 // -float, and -double are all inherited from this class. The compare | |
38 // functions behave like subtract functions, except that all negative answers | |
39 // are compressed into -1, and all positive answers compressed to 1. | |
40 class SubNode : public Node { | |
41 public: | |
42 SubNode( Node *in1, Node *in2 ) : Node(0,in1,in2) { | |
43 init_class_id(Class_Sub); | |
44 } | |
45 | |
46 // Handle algebraic identities here. If we have an identity, return the Node | |
47 // we are equivalent to. We look for "add of zero" as an identity. | |
48 virtual Node *Identity( PhaseTransform *phase ); | |
49 | |
50 // Compute a new Type for this node. Basically we just do the pre-check, | |
51 // then call the virtual add() to set the type. | |
52 virtual const Type *Value( PhaseTransform *phase ) const; | |
17936 | 53 const Type* Value_common( PhaseTransform *phase ) const; |
0 | 54 |
55 // Supplied function returns the subtractend of the inputs. | |
56 // This also type-checks the inputs for sanity. Guaranteed never to | |
57 // be passed a TOP or BOTTOM type, these are filtered out by a pre-check. | |
58 virtual const Type *sub( const Type *, const Type * ) const = 0; | |
59 | |
60 // Supplied function to return the additive identity type. | |
61 // This is returned whenever the subtracts inputs are the same. | |
62 virtual const Type *add_id() const = 0; | |
63 | |
64 }; | |
65 | |
66 | |
67 // NOTE: SubINode should be taken away and replaced by add and negate | |
68 //------------------------------SubINode--------------------------------------- | |
69 // Subtract 2 integers | |
70 class SubINode : public SubNode { | |
71 public: | |
72 SubINode( Node *in1, Node *in2 ) : SubNode(in1,in2) {} | |
73 virtual int Opcode() const; | |
74 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
75 virtual const Type *sub( const Type *, const Type * ) const; | |
76 const Type *add_id() const { return TypeInt::ZERO; } | |
77 const Type *bottom_type() const { return TypeInt::INT; } | |
78 virtual uint ideal_reg() const { return Op_RegI; } | |
79 }; | |
80 | |
81 //------------------------------SubLNode--------------------------------------- | |
82 // Subtract 2 integers | |
83 class SubLNode : public SubNode { | |
84 public: | |
85 SubLNode( Node *in1, Node *in2 ) : SubNode(in1,in2) {} | |
86 virtual int Opcode() const; | |
87 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
88 virtual const Type *sub( const Type *, const Type * ) const; | |
89 const Type *add_id() const { return TypeLong::ZERO; } | |
90 const Type *bottom_type() const { return TypeLong::LONG; } | |
91 virtual uint ideal_reg() const { return Op_RegL; } | |
92 }; | |
93 | |
94 // NOTE: SubFPNode should be taken away and replaced by add and negate | |
95 //------------------------------SubFPNode-------------------------------------- | |
96 // Subtract 2 floats or doubles | |
97 class SubFPNode : public SubNode { | |
98 protected: | |
99 SubFPNode( Node *in1, Node *in2 ) : SubNode(in1,in2) {} | |
100 public: | |
101 const Type *Value( PhaseTransform *phase ) const; | |
102 }; | |
103 | |
104 // NOTE: SubFNode should be taken away and replaced by add and negate | |
105 //------------------------------SubFNode--------------------------------------- | |
106 // Subtract 2 doubles | |
107 class SubFNode : public SubFPNode { | |
108 public: | |
109 SubFNode( Node *in1, Node *in2 ) : SubFPNode(in1,in2) {} | |
110 virtual int Opcode() const; | |
111 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
112 virtual const Type *sub( const Type *, const Type * ) const; | |
113 const Type *add_id() const { return TypeF::ZERO; } | |
114 const Type *bottom_type() const { return Type::FLOAT; } | |
115 virtual uint ideal_reg() const { return Op_RegF; } | |
116 }; | |
117 | |
118 // NOTE: SubDNode should be taken away and replaced by add and negate | |
119 //------------------------------SubDNode--------------------------------------- | |
120 // Subtract 2 doubles | |
121 class SubDNode : public SubFPNode { | |
122 public: | |
123 SubDNode( Node *in1, Node *in2 ) : SubFPNode(in1,in2) {} | |
124 virtual int Opcode() const; | |
125 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
126 virtual const Type *sub( const Type *, const Type * ) const; | |
127 const Type *add_id() const { return TypeD::ZERO; } | |
128 const Type *bottom_type() const { return Type::DOUBLE; } | |
129 virtual uint ideal_reg() const { return Op_RegD; } | |
130 }; | |
131 | |
132 //------------------------------CmpNode--------------------------------------- | |
133 // Compare 2 values, returning condition codes (-1, 0 or 1). | |
134 class CmpNode : public SubNode { | |
135 public: | |
136 CmpNode( Node *in1, Node *in2 ) : SubNode(in1,in2) { | |
137 init_class_id(Class_Cmp); | |
138 } | |
139 virtual Node *Identity( PhaseTransform *phase ); | |
140 const Type *add_id() const { return TypeInt::ZERO; } | |
141 const Type *bottom_type() const { return TypeInt::CC; } | |
142 virtual uint ideal_reg() const { return Op_RegFlags; } | |
143 }; | |
144 | |
145 //------------------------------CmpINode--------------------------------------- | |
146 // Compare 2 signed values, returning condition codes (-1, 0 or 1). | |
147 class CmpINode : public CmpNode { | |
148 public: | |
149 CmpINode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
150 virtual int Opcode() const; | |
151 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
152 virtual const Type *sub( const Type *, const Type * ) const; | |
153 }; | |
154 | |
155 //------------------------------CmpUNode--------------------------------------- | |
156 // Compare 2 unsigned values (integer or pointer), returning condition codes (-1, 0 or 1). | |
157 class CmpUNode : public CmpNode { | |
158 public: | |
159 CmpUNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
160 virtual int Opcode() const; | |
161 virtual const Type *sub( const Type *, const Type * ) const; | |
17936 | 162 const Type *Value( PhaseTransform *phase ) const; |
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163 bool is_index_range_check() const; |
0 | 164 }; |
165 | |
166 //------------------------------CmpPNode--------------------------------------- | |
167 // Compare 2 pointer values, returning condition codes (-1, 0 or 1). | |
168 class CmpPNode : public CmpNode { | |
169 public: | |
170 CmpPNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
171 virtual int Opcode() const; | |
172 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
173 virtual const Type *sub( const Type *, const Type * ) const; | |
174 }; | |
175 | |
113
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176 //------------------------------CmpNNode-------------------------------------- |
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177 // Compare 2 narrow oop values, returning condition codes (-1, 0 or 1). |
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178 class CmpNNode : public CmpNode { |
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179 public: |
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180 CmpNNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} |
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181 virtual int Opcode() const; |
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182 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
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183 virtual const Type *sub( const Type *, const Type * ) const; |
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184 }; |
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185 |
0 | 186 //------------------------------CmpLNode--------------------------------------- |
187 // Compare 2 long values, returning condition codes (-1, 0 or 1). | |
188 class CmpLNode : public CmpNode { | |
189 public: | |
190 CmpLNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
191 virtual int Opcode() const; | |
192 virtual const Type *sub( const Type *, const Type * ) const; | |
193 }; | |
194 | |
195 //------------------------------CmpL3Node-------------------------------------- | |
196 // Compare 2 long values, returning integer value (-1, 0 or 1). | |
197 class CmpL3Node : public CmpLNode { | |
198 public: | |
199 CmpL3Node( Node *in1, Node *in2 ) : CmpLNode(in1,in2) { | |
200 // Since it is not consumed by Bools, it is not really a Cmp. | |
201 init_class_id(Class_Sub); | |
202 } | |
203 virtual int Opcode() const; | |
204 virtual uint ideal_reg() const { return Op_RegI; } | |
205 }; | |
206 | |
207 //------------------------------CmpFNode--------------------------------------- | |
208 // Compare 2 float values, returning condition codes (-1, 0 or 1). | |
209 // This implements the Java bytecode fcmpl, so unordered returns -1. | |
210 // Operands may not commute. | |
211 class CmpFNode : public CmpNode { | |
212 public: | |
213 CmpFNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
214 virtual int Opcode() const; | |
215 virtual const Type *sub( const Type *, const Type * ) const { ShouldNotReachHere(); return NULL; } | |
216 const Type *Value( PhaseTransform *phase ) const; | |
217 }; | |
218 | |
219 //------------------------------CmpF3Node-------------------------------------- | |
220 // Compare 2 float values, returning integer value (-1, 0 or 1). | |
221 // This implements the Java bytecode fcmpl, so unordered returns -1. | |
222 // Operands may not commute. | |
223 class CmpF3Node : public CmpFNode { | |
224 public: | |
225 CmpF3Node( Node *in1, Node *in2 ) : CmpFNode(in1,in2) { | |
226 // Since it is not consumed by Bools, it is not really a Cmp. | |
227 init_class_id(Class_Sub); | |
228 } | |
229 virtual int Opcode() const; | |
230 // Since it is not consumed by Bools, it is not really a Cmp. | |
231 virtual uint ideal_reg() const { return Op_RegI; } | |
232 }; | |
233 | |
234 | |
235 //------------------------------CmpDNode--------------------------------------- | |
236 // Compare 2 double values, returning condition codes (-1, 0 or 1). | |
237 // This implements the Java bytecode dcmpl, so unordered returns -1. | |
238 // Operands may not commute. | |
239 class CmpDNode : public CmpNode { | |
240 public: | |
241 CmpDNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {} | |
242 virtual int Opcode() const; | |
243 virtual const Type *sub( const Type *, const Type * ) const { ShouldNotReachHere(); return NULL; } | |
244 const Type *Value( PhaseTransform *phase ) const; | |
245 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
246 }; | |
247 | |
248 //------------------------------CmpD3Node-------------------------------------- | |
249 // Compare 2 double values, returning integer value (-1, 0 or 1). | |
250 // This implements the Java bytecode dcmpl, so unordered returns -1. | |
251 // Operands may not commute. | |
252 class CmpD3Node : public CmpDNode { | |
253 public: | |
254 CmpD3Node( Node *in1, Node *in2 ) : CmpDNode(in1,in2) { | |
255 // Since it is not consumed by Bools, it is not really a Cmp. | |
256 init_class_id(Class_Sub); | |
257 } | |
258 virtual int Opcode() const; | |
259 virtual uint ideal_reg() const { return Op_RegI; } | |
260 }; | |
261 | |
262 | |
263 //------------------------------BoolTest--------------------------------------- | |
264 // Convert condition codes to a boolean test value (0 or -1). | |
265 // We pick the values as 3 bits; the low order 2 bits we compare against the | |
266 // condition codes, the high bit flips the sense of the result. | |
267 struct BoolTest VALUE_OBJ_CLASS_SPEC { | |
12323 | 268 enum mask { eq = 0, ne = 4, le = 5, ge = 7, lt = 3, gt = 1, overflow = 2, no_overflow = 6, illegal = 8 }; |
0 | 269 mask _test; |
270 BoolTest( mask btm ) : _test(btm) {} | |
271 const Type *cc2logical( const Type *CC ) const; | |
272 // Commute the test. I use a small table lookup. The table is created as | |
273 // a simple char array where each element is the ASCII version of a 'mask' | |
274 // enum from above. | |
12323 | 275 mask commute( ) const { return mask("032147658"[_test]-'0'); } |
0 | 276 mask negate( ) const { return mask(_test^4); } |
12323 | 277 bool is_canonical( ) const { return (_test == BoolTest::ne || _test == BoolTest::lt || _test == BoolTest::le || _test == BoolTest::overflow); } |
0 | 278 void dump_on(outputStream *st) const; |
279 }; | |
280 | |
281 //------------------------------BoolNode--------------------------------------- | |
282 // A Node to convert a Condition Codes to a Logical result. | |
283 class BoolNode : public Node { | |
284 virtual uint hash() const; | |
285 virtual uint cmp( const Node &n ) const; | |
286 virtual uint size_of() const; | |
287 public: | |
288 const BoolTest _test; | |
289 BoolNode( Node *cc, BoolTest::mask t): _test(t), Node(0,cc) { | |
290 init_class_id(Class_Bool); | |
291 } | |
292 // Convert an arbitrary int value to a Bool or other suitable predicate. | |
293 static Node* make_predicate(Node* test_value, PhaseGVN* phase); | |
294 // Convert self back to an integer value. | |
295 Node* as_int_value(PhaseGVN* phase); | |
296 // Invert sense of self, returning new Bool. | |
297 BoolNode* negate(PhaseGVN* phase); | |
298 virtual int Opcode() const; | |
299 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
300 virtual const Type *Value( PhaseTransform *phase ) const; | |
301 virtual const Type *bottom_type() const { return TypeInt::BOOL; } | |
302 uint match_edge(uint idx) const { return 0; } | |
303 virtual uint ideal_reg() const { return Op_RegI; } | |
304 | |
305 bool is_counted_loop_exit_test(); | |
306 #ifndef PRODUCT | |
307 virtual void dump_spec(outputStream *st) const; | |
308 #endif | |
309 }; | |
310 | |
311 //------------------------------AbsNode---------------------------------------- | |
312 // Abstract class for absolute value. Mostly used to get a handy wrapper | |
313 // for finding this pattern in the graph. | |
314 class AbsNode : public Node { | |
315 public: | |
316 AbsNode( Node *value ) : Node(0,value) {} | |
317 }; | |
318 | |
319 //------------------------------AbsINode--------------------------------------- | |
320 // Absolute value an integer. Since a naive graph involves control flow, we | |
321 // "match" it in the ideal world (so the control flow can be removed). | |
322 class AbsINode : public AbsNode { | |
323 public: | |
324 AbsINode( Node *in1 ) : AbsNode(in1) {} | |
325 virtual int Opcode() const; | |
326 const Type *bottom_type() const { return TypeInt::INT; } | |
327 virtual uint ideal_reg() const { return Op_RegI; } | |
328 }; | |
329 | |
330 //------------------------------AbsFNode--------------------------------------- | |
331 // Absolute value a float, a common float-point idiom with a cheap hardware | |
332 // implemention on most chips. Since a naive graph involves control flow, we | |
333 // "match" it in the ideal world (so the control flow can be removed). | |
334 class AbsFNode : public AbsNode { | |
335 public: | |
336 AbsFNode( Node *in1 ) : AbsNode(in1) {} | |
337 virtual int Opcode() const; | |
338 const Type *bottom_type() const { return Type::FLOAT; } | |
339 virtual uint ideal_reg() const { return Op_RegF; } | |
340 }; | |
341 | |
342 //------------------------------AbsDNode--------------------------------------- | |
343 // Absolute value a double, a common float-point idiom with a cheap hardware | |
344 // implemention on most chips. Since a naive graph involves control flow, we | |
345 // "match" it in the ideal world (so the control flow can be removed). | |
346 class AbsDNode : public AbsNode { | |
347 public: | |
348 AbsDNode( Node *in1 ) : AbsNode(in1) {} | |
349 virtual int Opcode() const; | |
350 const Type *bottom_type() const { return Type::DOUBLE; } | |
351 virtual uint ideal_reg() const { return Op_RegD; } | |
352 }; | |
353 | |
354 | |
355 //------------------------------CmpLTMaskNode---------------------------------- | |
356 // If p < q, return -1 else return 0. Nice for flow-free idioms. | |
357 class CmpLTMaskNode : public Node { | |
358 public: | |
359 CmpLTMaskNode( Node *p, Node *q ) : Node(0, p, q) {} | |
360 virtual int Opcode() const; | |
361 const Type *bottom_type() const { return TypeInt::INT; } | |
362 virtual uint ideal_reg() const { return Op_RegI; } | |
363 }; | |
364 | |
365 | |
366 //------------------------------NegNode---------------------------------------- | |
367 class NegNode : public Node { | |
368 public: | |
369 NegNode( Node *in1 ) : Node(0,in1) {} | |
370 }; | |
371 | |
372 //------------------------------NegFNode--------------------------------------- | |
373 // Negate value a float. Negating 0.0 returns -0.0, but subtracting from | |
374 // zero returns +0.0 (per JVM spec on 'fneg' bytecode). As subtraction | |
375 // cannot be used to replace negation we have to implement negation as ideal | |
376 // node; note that negation and addition can replace subtraction. | |
377 class NegFNode : public NegNode { | |
378 public: | |
379 NegFNode( Node *in1 ) : NegNode(in1) {} | |
380 virtual int Opcode() const; | |
381 const Type *bottom_type() const { return Type::FLOAT; } | |
382 virtual uint ideal_reg() const { return Op_RegF; } | |
383 }; | |
384 | |
385 //------------------------------NegDNode--------------------------------------- | |
386 // Negate value a double. Negating 0.0 returns -0.0, but subtracting from | |
387 // zero returns +0.0 (per JVM spec on 'dneg' bytecode). As subtraction | |
388 // cannot be used to replace negation we have to implement negation as ideal | |
389 // node; note that negation and addition can replace subtraction. | |
390 class NegDNode : public NegNode { | |
391 public: | |
392 NegDNode( Node *in1 ) : NegNode(in1) {} | |
393 virtual int Opcode() const; | |
394 const Type *bottom_type() const { return Type::DOUBLE; } | |
395 virtual uint ideal_reg() const { return Op_RegD; } | |
396 }; | |
397 | |
398 //------------------------------CosDNode--------------------------------------- | |
399 // Cosinus of a double | |
400 class CosDNode : public Node { | |
401 public: | |
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402 CosDNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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403 init_flags(Flag_is_expensive); |
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404 C->add_expensive_node(this); |
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405 } |
0 | 406 virtual int Opcode() const; |
407 const Type *bottom_type() const { return Type::DOUBLE; } | |
408 virtual uint ideal_reg() const { return Op_RegD; } | |
409 virtual const Type *Value( PhaseTransform *phase ) const; | |
410 }; | |
411 | |
412 //------------------------------CosDNode--------------------------------------- | |
413 // Sinus of a double | |
414 class SinDNode : public Node { | |
415 public: | |
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416 SinDNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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417 init_flags(Flag_is_expensive); |
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418 C->add_expensive_node(this); |
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419 } |
0 | 420 virtual int Opcode() const; |
421 const Type *bottom_type() const { return Type::DOUBLE; } | |
422 virtual uint ideal_reg() const { return Op_RegD; } | |
423 virtual const Type *Value( PhaseTransform *phase ) const; | |
424 }; | |
425 | |
426 | |
427 //------------------------------TanDNode--------------------------------------- | |
428 // tangens of a double | |
429 class TanDNode : public Node { | |
430 public: | |
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431 TanDNode(Compile* C, Node *c,Node *in1) : Node(c, in1) { |
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432 init_flags(Flag_is_expensive); |
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433 C->add_expensive_node(this); |
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434 } |
0 | 435 virtual int Opcode() const; |
436 const Type *bottom_type() const { return Type::DOUBLE; } | |
437 virtual uint ideal_reg() const { return Op_RegD; } | |
438 virtual const Type *Value( PhaseTransform *phase ) const; | |
439 }; | |
440 | |
441 | |
442 //------------------------------AtanDNode-------------------------------------- | |
443 // arcus tangens of a double | |
444 class AtanDNode : public Node { | |
445 public: | |
446 AtanDNode(Node *c, Node *in1, Node *in2 ) : Node(c, in1, in2) {} | |
447 virtual int Opcode() const; | |
448 const Type *bottom_type() const { return Type::DOUBLE; } | |
449 virtual uint ideal_reg() const { return Op_RegD; } | |
450 }; | |
451 | |
452 | |
453 //------------------------------SqrtDNode-------------------------------------- | |
454 // square root a double | |
455 class SqrtDNode : public Node { | |
456 public: | |
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457 SqrtDNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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458 init_flags(Flag_is_expensive); |
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459 C->add_expensive_node(this); |
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460 } |
0 | 461 virtual int Opcode() const; |
462 const Type *bottom_type() const { return Type::DOUBLE; } | |
463 virtual uint ideal_reg() const { return Op_RegD; } | |
464 virtual const Type *Value( PhaseTransform *phase ) const; | |
465 }; | |
466 | |
467 //------------------------------ExpDNode--------------------------------------- | |
468 // Exponentiate a double | |
469 class ExpDNode : public Node { | |
470 public: | |
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471 ExpDNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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472 init_flags(Flag_is_expensive); |
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473 C->add_expensive_node(this); |
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474 } |
0 | 475 virtual int Opcode() const; |
476 const Type *bottom_type() const { return Type::DOUBLE; } | |
477 virtual uint ideal_reg() const { return Op_RegD; } | |
478 virtual const Type *Value( PhaseTransform *phase ) const; | |
479 }; | |
480 | |
481 //------------------------------LogDNode--------------------------------------- | |
482 // Log_e of a double | |
483 class LogDNode : public Node { | |
484 public: | |
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485 LogDNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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486 init_flags(Flag_is_expensive); |
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487 C->add_expensive_node(this); |
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488 } |
0 | 489 virtual int Opcode() const; |
490 const Type *bottom_type() const { return Type::DOUBLE; } | |
491 virtual uint ideal_reg() const { return Op_RegD; } | |
492 virtual const Type *Value( PhaseTransform *phase ) const; | |
493 }; | |
494 | |
495 //------------------------------Log10DNode--------------------------------------- | |
496 // Log_10 of a double | |
497 class Log10DNode : public Node { | |
498 public: | |
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499 Log10DNode(Compile* C, Node *c, Node *in1) : Node(c, in1) { |
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500 init_flags(Flag_is_expensive); |
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501 C->add_expensive_node(this); |
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502 } |
0 | 503 virtual int Opcode() const; |
504 const Type *bottom_type() const { return Type::DOUBLE; } | |
505 virtual uint ideal_reg() const { return Op_RegD; } | |
506 virtual const Type *Value( PhaseTransform *phase ) const; | |
507 }; | |
508 | |
509 //------------------------------PowDNode--------------------------------------- | |
510 // Raise a double to a double power | |
511 class PowDNode : public Node { | |
512 public: | |
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513 PowDNode(Compile* C, Node *c, Node *in1, Node *in2 ) : Node(c, in1, in2) { |
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514 init_flags(Flag_is_expensive); |
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515 C->add_expensive_node(this); |
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516 } |
0 | 517 virtual int Opcode() const; |
518 const Type *bottom_type() const { return Type::DOUBLE; } | |
519 virtual uint ideal_reg() const { return Op_RegD; } | |
520 virtual const Type *Value( PhaseTransform *phase ) const; | |
521 }; | |
522 | |
523 //-------------------------------ReverseBytesINode-------------------------------- | |
524 // reverse bytes of an integer | |
525 class ReverseBytesINode : public Node { | |
526 public: | |
527 ReverseBytesINode(Node *c, Node *in1) : Node(c, in1) {} | |
528 virtual int Opcode() const; | |
529 const Type *bottom_type() const { return TypeInt::INT; } | |
530 virtual uint ideal_reg() const { return Op_RegI; } | |
531 }; | |
532 | |
533 //-------------------------------ReverseBytesLNode-------------------------------- | |
534 // reverse bytes of a long | |
535 class ReverseBytesLNode : public Node { | |
536 public: | |
537 ReverseBytesLNode(Node *c, Node *in1) : Node(c, in1) {} | |
538 virtual int Opcode() const; | |
539 const Type *bottom_type() const { return TypeLong::LONG; } | |
540 virtual uint ideal_reg() const { return Op_RegL; } | |
541 }; | |
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542 |
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543 //-------------------------------ReverseBytesUSNode-------------------------------- |
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544 // reverse bytes of an unsigned short / char |
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545 class ReverseBytesUSNode : public Node { |
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546 public: |
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547 ReverseBytesUSNode(Node *c, Node *in1) : Node(c, in1) {} |
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548 virtual int Opcode() const; |
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549 const Type *bottom_type() const { return TypeInt::CHAR; } |
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550 virtual uint ideal_reg() const { return Op_RegI; } |
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551 }; |
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552 |
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553 //-------------------------------ReverseBytesSNode-------------------------------- |
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554 // reverse bytes of a short |
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555 class ReverseBytesSNode : public Node { |
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556 public: |
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557 ReverseBytesSNode(Node *c, Node *in1) : Node(c, in1) {} |
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558 virtual int Opcode() const; |
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559 const Type *bottom_type() const { return TypeInt::SHORT; } |
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560 virtual uint ideal_reg() const { return Op_RegI; } |
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561 }; |
1972 | 562 |
563 #endif // SHARE_VM_OPTO_SUBNODE_HPP |