Mercurial > hg > truffle
annotate src/share/vm/adlc/formssel.cpp @ 17795:a9becfeecd1b
Merge
| author | kvn |
|---|---|
| date | Wed, 22 Jan 2014 17:42:23 -0800 |
| parents | 55fb97c4c58d 50fdb38839eb |
| children | 9e9af3aa4278 4ca6dc0799b6 62c54fcc0a35 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
17467
55fb97c4c58d
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
mikael
parents:
12953
diff
changeset
|
2 * Copyright (c) 1998, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1541
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1541
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:
1541
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // FORMS.CPP - Definitions for ADL Parser Forms Classes | |
| 26 #include "adlc.hpp" | |
| 27 | |
| 28 //==============================Instructions=================================== | |
| 29 //------------------------------InstructForm----------------------------------- | |
| 30 InstructForm::InstructForm(const char *id, bool ideal_only) | |
| 31 : _ident(id), _ideal_only(ideal_only), | |
| 32 _localNames(cmpstr, hashstr, Form::arena), | |
| 2008 | 33 _effects(cmpstr, hashstr, Form::arena), |
|
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
3965
diff
changeset
|
34 _is_mach_constant(false), |
|
14434
318d0622a6d7
8028580: PPC64 (part 114/120): Support for Call nodes with constants.
goetz
parents:
14431
diff
changeset
|
35 _needs_constant_base(false), |
|
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
3965
diff
changeset
|
36 _has_call(false) |
| 2008 | 37 { |
| 0 | 38 _ftype = Form::INS; |
| 39 | |
|
14428
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
40 _matrule = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
41 _insencode = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
42 _constant = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
43 _is_postalloc_expand = false; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
44 _opcode = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
45 _size = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
46 _attribs = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
47 _predicate = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
48 _exprule = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
49 _rewrule = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
50 _format = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
51 _peephole = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
52 _ins_pipe = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
53 _uniq_idx = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
54 _num_uniq = 0; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
55 _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill |
| 0 | 56 _cisc_spill_alternate = NULL; // possible cisc replacement |
|
14428
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
57 _cisc_reg_mask_name = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
58 _is_cisc_alternate = false; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
59 _is_short_branch = false; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
60 _short_branch_form = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
61 _alignment = 1; |
| 0 | 62 } |
| 63 | |
| 64 InstructForm::InstructForm(const char *id, InstructForm *instr, MatchRule *rule) | |
| 65 : _ident(id), _ideal_only(false), | |
| 66 _localNames(instr->_localNames), | |
| 2008 | 67 _effects(instr->_effects), |
|
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
3965
diff
changeset
|
68 _is_mach_constant(false), |
|
14434
318d0622a6d7
8028580: PPC64 (part 114/120): Support for Call nodes with constants.
goetz
parents:
14431
diff
changeset
|
69 _needs_constant_base(false), |
|
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
3965
diff
changeset
|
70 _has_call(false) |
| 2008 | 71 { |
| 0 | 72 _ftype = Form::INS; |
| 73 | |
|
14428
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
74 _matrule = rule; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
75 _insencode = instr->_insencode; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
76 _constant = instr->_constant; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
77 _is_postalloc_expand = instr->_is_postalloc_expand; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
78 _opcode = instr->_opcode; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
79 _size = instr->_size; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
80 _attribs = instr->_attribs; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
81 _predicate = instr->_predicate; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
82 _exprule = instr->_exprule; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
83 _rewrule = instr->_rewrule; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
84 _format = instr->_format; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
85 _peephole = instr->_peephole; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
86 _ins_pipe = instr->_ins_pipe; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
87 _uniq_idx = instr->_uniq_idx; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
88 _num_uniq = instr->_num_uniq; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
89 _cisc_spill_operand = Not_cisc_spillable; // Which operand may cisc-spill |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
90 _cisc_spill_alternate = NULL; // possible cisc replacement |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
91 _cisc_reg_mask_name = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
92 _is_cisc_alternate = false; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
93 _is_short_branch = false; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
94 _short_branch_form = NULL; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
95 _alignment = 1; |
| 0 | 96 // Copy parameters |
| 97 const char *name; | |
| 98 instr->_parameters.reset(); | |
| 99 for (; (name = instr->_parameters.iter()) != NULL;) | |
| 100 _parameters.addName(name); | |
| 101 } | |
| 102 | |
| 103 InstructForm::~InstructForm() { | |
| 104 } | |
| 105 | |
| 106 InstructForm *InstructForm::is_instruction() const { | |
| 107 return (InstructForm*)this; | |
| 108 } | |
| 109 | |
| 110 bool InstructForm::ideal_only() const { | |
| 111 return _ideal_only; | |
| 112 } | |
| 113 | |
| 114 bool InstructForm::sets_result() const { | |
| 115 return (_matrule != NULL && _matrule->sets_result()); | |
| 116 } | |
| 117 | |
| 118 bool InstructForm::needs_projections() { | |
| 119 _components.reset(); | |
| 120 for( Component *comp; (comp = _components.iter()) != NULL; ) { | |
| 121 if (comp->isa(Component::KILL)) { | |
| 122 return true; | |
| 123 } | |
| 124 } | |
| 125 return false; | |
| 126 } | |
| 127 | |
| 128 | |
| 129 bool InstructForm::has_temps() { | |
| 130 if (_matrule) { | |
| 131 // Examine each component to see if it is a TEMP | |
| 132 _components.reset(); | |
| 133 // Skip the first component, if already handled as (SET dst (...)) | |
| 134 Component *comp = NULL; | |
| 135 if (sets_result()) comp = _components.iter(); | |
| 136 while ((comp = _components.iter()) != NULL) { | |
| 137 if (comp->isa(Component::TEMP)) { | |
| 138 return true; | |
| 139 } | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 return false; | |
| 144 } | |
| 145 | |
| 146 uint InstructForm::num_defs_or_kills() { | |
| 147 uint defs_or_kills = 0; | |
| 148 | |
| 149 _components.reset(); | |
| 150 for( Component *comp; (comp = _components.iter()) != NULL; ) { | |
| 151 if( comp->isa(Component::DEF) || comp->isa(Component::KILL) ) { | |
| 152 ++defs_or_kills; | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 return defs_or_kills; | |
| 157 } | |
| 158 | |
| 159 // This instruction has an expand rule? | |
| 160 bool InstructForm::expands() const { | |
| 161 return ( _exprule != NULL ); | |
| 162 } | |
| 163 | |
|
14428
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
164 // This instruction has a late expand rule? |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
165 bool InstructForm::postalloc_expands() const { |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
166 return _is_postalloc_expand; |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
167 } |
|
044b28168e20
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation
goetz
parents:
12953
diff
changeset
|
168 |
| 0 | 169 // This instruction has a peephole rule? |
| 170 Peephole *InstructForm::peepholes() const { | |
| 171 return _peephole; | |
| 172 } | |
| 173 | |
| 174 // This instruction has a peephole rule? | |
| 175 void InstructForm::append_peephole(Peephole *peephole) { | |
| 176 if( _peephole == NULL ) { | |
| 177 _peephole = peephole; | |
| 178 } else { | |
| 179 _peephole->append_peephole(peephole); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 | |
| 184 // ideal opcode enumeration | |
| 185 const char *InstructForm::ideal_Opcode( FormDict &globalNames ) const { | |
| 186 if( !_matrule ) return "Node"; // Something weird | |
| 187 // Chain rules do not really have ideal Opcodes; use their source | |
| 188 // operand ideal Opcode instead. | |
| 189 if( is_simple_chain_rule(globalNames) ) { | |
| 190 const char *src = _matrule->_rChild->_opType; | |
| 191 OperandForm *src_op = globalNames[src]->is_operand(); | |
| 192 assert( src_op, "Not operand class of chain rule" ); | |
| 193 if( !src_op->_matrule ) return "Node"; | |
| 194 return src_op->_matrule->_opType; | |
| 195 } | |
| 196 // Operand chain rules do not really have ideal Opcodes | |
| 197 if( _matrule->is_chain_rule(globalNames) ) | |
| 198 return "Node"; | |
| 199 return strcmp(_matrule->_opType,"Set") | |
| 200 ? _matrule->_opType | |
| 201 : _matrule->_rChild->_opType; | |
| 202 } | |
| 203 | |
| 204 // Recursive check on all operands' match rules in my match rule | |
| 205 bool InstructForm::is_pinned(FormDict &globals) { | |
| 206 if ( ! _matrule) return false; | |
| 207 | |
| 208 int index = 0; | |
| 209 if (_matrule->find_type("Goto", index)) return true; | |
| 210 if (_matrule->find_type("If", index)) return true; | |
| 211 if (_matrule->find_type("CountedLoopEnd",index)) return true; | |
| 212 if (_matrule->find_type("Return", index)) return true; | |
| 213 if (_matrule->find_type("Rethrow", index)) return true; | |
| 214 if (_matrule->find_type("TailCall", index)) return true; | |
| 215 if (_matrule->find_type("TailJump", index)) return true; | |
| 216 if (_matrule->find_type("Halt", index)) return true; | |
| 217 if (_matrule->find_type("Jump", index)) return true; | |
| 218 | |
| 219 return is_parm(globals); | |
| 220 } | |
| 221 | |
| 222 // Recursive check on all operands' match rules in my match rule | |
| 223 bool InstructForm::is_projection(FormDict &globals) { | |
| 224 if ( ! _matrule) return false; | |
| 225 | |
| 226 int index = 0; | |
| 227 if (_matrule->find_type("Goto", index)) return true; | |
| 228 if (_matrule->find_type("Return", index)) return true; | |
| 229 if (_matrule->find_type("Rethrow", index)) return true; | |
| 230 if (_matrule->find_type("TailCall",index)) return true; | |
| 231 if (_matrule->find_type("TailJump",index)) return true; | |
| 232 if (_matrule->find_type("Halt", index)) return true; | |
| 233 | |
| 234 return false; | |
| 235 } | |
| 236 | |
| 237 // Recursive check on all operands' match rules in my match rule | |
| 238 bool InstructForm::is_parm(FormDict &globals) { | |
| 239 if ( ! _matrule) return false; | |
| 240 | |
| 241 int index = 0; | |
| 242 if (_matrule->find_type("Parm",index)) return true; | |
| 243 | |
| 244 return false; | |
| 245 } | |
| 246 | |
|
11002
7fa25f5575c9
8016157: During CTW: C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
adlertz
parents:
10389
diff
changeset
|
247 bool InstructForm::is_ideal_negD() const { |
|
7fa25f5575c9
8016157: During CTW: C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
adlertz
parents:
10389
diff
changeset
|
248 return (_matrule && _matrule->_rChild && strcmp(_matrule->_rChild->_opType, "NegD") == 0); |
|
7fa25f5575c9
8016157: During CTW: C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
adlertz
parents:
10389
diff
changeset
|
249 } |
| 0 | 250 |
| 251 // Return 'true' if this instruction matches an ideal 'Copy*' node | |
| 252 int InstructForm::is_ideal_copy() const { | |
| 253 return _matrule ? _matrule->is_ideal_copy() : 0; | |
| 254 } | |
| 255 | |
| 256 // Return 'true' if this instruction is too complex to rematerialize. | |
| 257 int InstructForm::is_expensive() const { | |
| 258 // We can prove it is cheap if it has an empty encoding. | |
| 259 // This helps with platform-specific nops like ThreadLocal and RoundFloat. | |
| 260 if (is_empty_encoding()) | |
| 261 return 0; | |
| 262 | |
| 263 if (is_tls_instruction()) | |
| 264 return 1; | |
| 265 | |
| 266 if (_matrule == NULL) return 0; | |
| 267 | |
| 268 return _matrule->is_expensive(); | |
| 269 } | |
| 270 | |
| 271 // Has an empty encoding if _size is a constant zero or there | |
| 272 // are no ins_encode tokens. | |
| 273 int InstructForm::is_empty_encoding() const { | |
| 274 if (_insencode != NULL) { | |
| 275 _insencode->reset(); | |
| 276 if (_insencode->encode_class_iter() == NULL) { | |
| 277 return 1; | |
| 278 } | |
| 279 } | |
| 280 if (_size != NULL && strcmp(_size, "0") == 0) { | |
| 281 return 1; | |
| 282 } | |
| 283 return 0; | |
| 284 } | |
| 285 | |
| 286 int InstructForm::is_tls_instruction() const { | |
| 287 if (_ident != NULL && | |
| 288 ( ! strcmp( _ident,"tlsLoadP") || | |
| 289 ! strncmp(_ident,"tlsLoadP_",9)) ) { | |
| 290 return 1; | |
| 291 } | |
| 292 | |
| 293 if (_matrule != NULL && _insencode != NULL) { | |
| 294 const char* opType = _matrule->_opType; | |
| 295 if (strcmp(opType, "Set")==0) | |
| 296 opType = _matrule->_rChild->_opType; | |
| 297 if (strcmp(opType,"ThreadLocal")==0) { | |
| 298 fprintf(stderr, "Warning: ThreadLocal instruction %s should be named 'tlsLoadP_*'\n", | |
| 299 (_ident == NULL ? "NULL" : _ident)); | |
| 300 return 1; | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 return 0; | |
| 305 } | |
| 306 | |
| 307 | |
| 308 // Return 'true' if this instruction matches an ideal 'If' node | |
| 309 bool InstructForm::is_ideal_if() const { | |
| 310 if( _matrule == NULL ) return false; | |
| 311 | |
| 312 return _matrule->is_ideal_if(); | |
| 313 } | |
| 314 | |
| 315 // Return 'true' if this instruction matches an ideal 'FastLock' node | |
| 316 bool InstructForm::is_ideal_fastlock() const { | |
| 317 if( _matrule == NULL ) return false; | |
| 318 | |
| 319 return _matrule->is_ideal_fastlock(); | |
| 320 } | |
| 321 | |
| 322 // Return 'true' if this instruction matches an ideal 'MemBarXXX' node | |
| 323 bool InstructForm::is_ideal_membar() const { | |
| 324 if( _matrule == NULL ) return false; | |
| 325 | |
| 326 return _matrule->is_ideal_membar(); | |
| 327 } | |
| 328 | |
| 329 // Return 'true' if this instruction matches an ideal 'LoadPC' node | |
| 330 bool InstructForm::is_ideal_loadPC() const { | |
| 331 if( _matrule == NULL ) return false; | |
| 332 | |
| 333 return _matrule->is_ideal_loadPC(); | |
| 334 } | |
| 335 | |
| 336 // Return 'true' if this instruction matches an ideal 'Box' node | |
| 337 bool InstructForm::is_ideal_box() const { | |
| 338 if( _matrule == NULL ) return false; | |
| 339 | |
| 340 return _matrule->is_ideal_box(); | |
| 341 } | |
| 342 | |
| 343 // Return 'true' if this instruction matches an ideal 'Goto' node | |
| 344 bool InstructForm::is_ideal_goto() const { | |
| 345 if( _matrule == NULL ) return false; | |
| 346 | |
| 347 return _matrule->is_ideal_goto(); | |
| 348 } | |
| 349 | |
| 350 // Return 'true' if this instruction matches an ideal 'Jump' node | |
| 351 bool InstructForm::is_ideal_jump() const { | |
| 352 if( _matrule == NULL ) return false; | |
| 353 | |
| 354 return _matrule->is_ideal_jump(); | |
| 355 } | |
| 356 | |
|
3853
11211f7cb5a0
7079317: Incorrect branch's destination block in PrintoOptoAssembly output
kvn
parents:
3851
diff
changeset
|
357 // Return 'true' if instruction matches ideal 'If' | 'Goto' | 'CountedLoopEnd' |
| 0 | 358 bool InstructForm::is_ideal_branch() const { |
| 359 if( _matrule == NULL ) return false; | |
| 360 | |
|
3853
11211f7cb5a0
7079317: Incorrect branch's destination block in PrintoOptoAssembly output
kvn
parents:
3851
diff
changeset
|
361 return _matrule->is_ideal_if() || _matrule->is_ideal_goto(); |
| 0 | 362 } |
| 363 | |
| 364 | |
| 365 // Return 'true' if this instruction matches an ideal 'Return' node | |
| 366 bool InstructForm::is_ideal_return() const { | |
| 367 if( _matrule == NULL ) return false; | |
| 368 | |
| 369 // Check MatchRule to see if the first entry is the ideal "Return" node | |
| 370 int index = 0; | |
| 371 if (_matrule->find_type("Return",index)) return true; | |
| 372 if (_matrule->find_type("Rethrow",index)) return true; | |
| 373 if (_matrule->find_type("TailCall",index)) return true; | |
| 374 if (_matrule->find_type("TailJump",index)) return true; | |
| 375 | |
| 376 return false; | |
| 377 } | |
| 378 | |
| 379 // Return 'true' if this instruction matches an ideal 'Halt' node | |
| 380 bool InstructForm::is_ideal_halt() const { | |
| 381 int index = 0; | |
| 382 return _matrule && _matrule->find_type("Halt",index); | |
| 383 } | |
| 384 | |
| 385 // Return 'true' if this instruction matches an ideal 'SafePoint' node | |
| 386 bool InstructForm::is_ideal_safepoint() const { | |
| 387 int index = 0; | |
| 388 return _matrule && _matrule->find_type("SafePoint",index); | |
| 389 } | |
| 390 | |
| 391 // Return 'true' if this instruction matches an ideal 'Nop' node | |
| 392 bool InstructForm::is_ideal_nop() const { | |
| 393 return _ident && _ident[0] == 'N' && _ident[1] == 'o' && _ident[2] == 'p' && _ident[3] == '_'; | |
| 394 } | |
| 395 | |
| 396 bool InstructForm::is_ideal_control() const { | |
| 397 if ( ! _matrule) return false; | |
| 398 | |
|
3853
11211f7cb5a0
7079317: Incorrect branch's destination block in PrintoOptoAssembly output
kvn
parents:
3851
diff
changeset
|
399 return is_ideal_return() || is_ideal_branch() || _matrule->is_ideal_jump() || is_ideal_halt(); |
| 0 | 400 } |
| 401 | |
| 402 // Return 'true' if this instruction matches an ideal 'Call' node | |
| 403 Form::CallType InstructForm::is_ideal_call() const { | |
| 404 if( _matrule == NULL ) return Form::invalid_type; | |
| 405 | |
| 406 // Check MatchRule to see if the first entry is the ideal "Call" node | |
| 407 int idx = 0; | |
| 408 if(_matrule->find_type("CallStaticJava",idx)) return Form::JAVA_STATIC; | |
| 409 idx = 0; | |
| 410 if(_matrule->find_type("Lock",idx)) return Form::JAVA_STATIC; | |
| 411 idx = 0; | |
| 412 if(_matrule->find_type("Unlock",idx)) return Form::JAVA_STATIC; | |
| 413 idx = 0; | |
| 414 if(_matrule->find_type("CallDynamicJava",idx)) return Form::JAVA_DYNAMIC; | |
| 415 idx = 0; | |
| 416 if(_matrule->find_type("CallRuntime",idx)) return Form::JAVA_RUNTIME; | |
| 417 idx = 0; | |
| 418 if(_matrule->find_type("CallLeaf",idx)) return Form::JAVA_LEAF; | |
| 419 idx = 0; | |
| 420 if(_matrule->find_type("CallLeafNoFP",idx)) return Form::JAVA_LEAF; | |
| 421 idx = 0; | |
| 422 | |
| 423 return Form::invalid_type; | |
| 424 } | |
| 425 | |
| 426 // Return 'true' if this instruction matches an ideal 'Load?' node | |
| 427 Form::DataType InstructForm::is_ideal_load() const { | |
| 428 if( _matrule == NULL ) return Form::none; | |
| 429 | |
| 430 return _matrule->is_ideal_load(); | |
| 431 } | |
| 432 | |
|
855
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
433 // Return 'true' if this instruction matches an ideal 'LoadKlass' node |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
434 bool InstructForm::skip_antidep_check() const { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
435 if( _matrule == NULL ) return false; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
436 |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
437 return _matrule->skip_antidep_check(); |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
438 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
439 |
| 0 | 440 // Return 'true' if this instruction matches an ideal 'Load?' node |
| 441 Form::DataType InstructForm::is_ideal_store() const { | |
| 442 if( _matrule == NULL ) return Form::none; | |
| 443 | |
| 444 return _matrule->is_ideal_store(); | |
| 445 } | |
| 446 | |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
447 // Return 'true' if this instruction matches an ideal vector node |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
448 bool InstructForm::is_vector() const { |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
449 if( _matrule == NULL ) return false; |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
450 |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
451 return _matrule->is_vector(); |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
452 } |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
453 |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
454 |
| 0 | 455 // Return the input register that must match the output register |
| 456 // If this is not required, return 0 | |
| 457 uint InstructForm::two_address(FormDict &globals) { | |
| 458 uint matching_input = 0; | |
| 459 if(_components.count() == 0) return 0; | |
| 460 | |
| 461 _components.reset(); | |
| 462 Component *comp = _components.iter(); | |
| 463 // Check if there is a DEF | |
| 464 if( comp->isa(Component::DEF) ) { | |
| 465 // Check that this is a register | |
| 466 const char *def_type = comp->_type; | |
| 467 const Form *form = globals[def_type]; | |
| 468 OperandForm *op = form->is_operand(); | |
| 469 if( op ) { | |
| 470 if( op->constrained_reg_class() != NULL && | |
| 471 op->interface_type(globals) == Form::register_interface ) { | |
| 472 // Remember the local name for equality test later | |
| 473 const char *def_name = comp->_name; | |
| 474 // Check if a component has the same name and is a USE | |
| 475 do { | |
| 476 if( comp->isa(Component::USE) && strcmp(comp->_name,def_name)==0 ) { | |
| 477 return operand_position_format(def_name); | |
| 478 } | |
| 479 } while( (comp = _components.iter()) != NULL); | |
| 480 } | |
| 481 } | |
| 482 } | |
| 483 | |
| 484 return 0; | |
| 485 } | |
| 486 | |
| 487 | |
| 488 // when chaining a constant to an instruction, returns 'true' and sets opType | |
| 489 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals) { | |
| 490 const char *dummy = NULL; | |
| 491 const char *dummy2 = NULL; | |
| 492 return is_chain_of_constant(globals, dummy, dummy2); | |
| 493 } | |
| 494 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, | |
| 495 const char * &opTypeParam) { | |
| 496 const char *result = NULL; | |
| 497 | |
| 498 return is_chain_of_constant(globals, opTypeParam, result); | |
| 499 } | |
| 500 | |
| 501 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, | |
| 502 const char * &opTypeParam, const char * &resultParam) { | |
| 503 Form::DataType data_type = Form::none; | |
| 504 if ( ! _matrule) return data_type; | |
| 505 | |
| 506 // !!!!! | |
| 507 // The source of the chain rule is 'position = 1' | |
| 508 uint position = 1; | |
| 509 const char *result = NULL; | |
| 510 const char *name = NULL; | |
| 511 const char *opType = NULL; | |
| 512 // Here base_operand is looking for an ideal type to be returned (opType). | |
| 513 if ( _matrule->is_chain_rule(globals) | |
| 514 && _matrule->base_operand(position, globals, result, name, opType) ) { | |
| 515 data_type = ideal_to_const_type(opType); | |
| 516 | |
| 517 // if it isn't an ideal constant type, just return | |
| 518 if ( data_type == Form::none ) return data_type; | |
| 519 | |
| 520 // Ideal constant types also adjust the opType parameter. | |
| 521 resultParam = result; | |
| 522 opTypeParam = opType; | |
| 523 return data_type; | |
| 524 } | |
| 525 | |
| 526 return data_type; | |
| 527 } | |
| 528 | |
| 529 // Check if a simple chain rule | |
| 530 bool InstructForm::is_simple_chain_rule(FormDict &globals) const { | |
| 531 if( _matrule && _matrule->sets_result() | |
| 532 && _matrule->_rChild->_lChild == NULL | |
| 533 && globals[_matrule->_rChild->_opType] | |
| 534 && globals[_matrule->_rChild->_opType]->is_opclass() ) { | |
| 535 return true; | |
| 536 } | |
| 537 return false; | |
| 538 } | |
| 539 | |
| 540 // check for structural rematerialization | |
| 541 bool InstructForm::rematerialize(FormDict &globals, RegisterForm *registers ) { | |
| 542 bool rematerialize = false; | |
| 543 | |
| 544 Form::DataType data_type = is_chain_of_constant(globals); | |
| 545 if( data_type != Form::none ) | |
| 546 rematerialize = true; | |
| 547 | |
| 548 // Constants | |
| 549 if( _components.count() == 1 && _components[0]->is(Component::USE_DEF) ) | |
| 550 rematerialize = true; | |
| 551 | |
| 552 // Pseudo-constants (values easily available to the runtime) | |
| 553 if (is_empty_encoding() && is_tls_instruction()) | |
| 554 rematerialize = true; | |
| 555 | |
| 556 // 1-input, 1-output, such as copies or increments. | |
| 557 if( _components.count() == 2 && | |
| 558 _components[0]->is(Component::DEF) && | |
| 559 _components[1]->isa(Component::USE) ) | |
| 560 rematerialize = true; | |
| 561 | |
| 562 // Check for an ideal 'Load?' and eliminate rematerialize option | |
| 563 if ( is_ideal_load() != Form::none || // Ideal load? Do not rematerialize | |
| 564 is_ideal_copy() != Form::none || // Ideal copy? Do not rematerialize | |
| 565 is_expensive() != Form::none) { // Expensive? Do not rematerialize | |
| 566 rematerialize = false; | |
| 567 } | |
| 568 | |
| 569 // Always rematerialize the flags. They are more expensive to save & | |
| 570 // restore than to recompute (and possibly spill the compare's inputs). | |
| 571 if( _components.count() >= 1 ) { | |
| 572 Component *c = _components[0]; | |
| 573 const Form *form = globals[c->_type]; | |
| 574 OperandForm *opform = form->is_operand(); | |
| 575 if( opform ) { | |
| 576 // Avoid the special stack_slots register classes | |
| 577 const char *rc_name = opform->constrained_reg_class(); | |
| 578 if( rc_name ) { | |
| 579 if( strcmp(rc_name,"stack_slots") ) { | |
| 580 // Check for ideal_type of RegFlags | |
| 581 const char *type = opform->ideal_type( globals, registers ); | |
| 6850 | 582 if( (type != NULL) && !strcmp(type, "RegFlags") ) |
| 0 | 583 rematerialize = true; |
| 584 } else | |
| 585 rematerialize = false; // Do not rematerialize things target stk | |
| 586 } | |
| 587 } | |
| 588 } | |
| 589 | |
| 590 return rematerialize; | |
| 591 } | |
| 592 | |
| 593 // loads from memory, so must check for anti-dependence | |
| 594 bool InstructForm::needs_anti_dependence_check(FormDict &globals) const { | |
|
855
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
595 if ( skip_antidep_check() ) return false; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
596 |
| 0 | 597 // Machine independent loads must be checked for anti-dependences |
| 598 if( is_ideal_load() != Form::none ) return true; | |
| 599 | |
| 600 // !!!!! !!!!! !!!!! | |
| 601 // TEMPORARY | |
| 602 // if( is_simple_chain_rule(globals) ) return false; | |
| 603 | |
| 681 | 604 // String.(compareTo/equals/indexOf) and Arrays.equals use many memorys edges, |
| 605 // but writes none | |
| 0 | 606 if( _matrule && _matrule->_rChild && |
| 681 | 607 ( strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
| 608 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || | |
| 609 strcmp(_matrule->_rChild->_opType,"StrIndexOf" )==0 || | |
| 610 strcmp(_matrule->_rChild->_opType,"AryEq" )==0 )) | |
| 0 | 611 return true; |
| 612 | |
| 613 // Check if instruction has a USE of a memory operand class, but no defs | |
| 614 bool USE_of_memory = false; | |
| 615 bool DEF_of_memory = false; | |
| 616 Component *comp = NULL; | |
| 617 ComponentList &components = (ComponentList &)_components; | |
| 618 | |
| 619 components.reset(); | |
| 620 while( (comp = components.iter()) != NULL ) { | |
| 621 const Form *form = globals[comp->_type]; | |
| 622 if( !form ) continue; | |
| 623 OpClassForm *op = form->is_opclass(); | |
| 624 if( !op ) continue; | |
| 625 if( form->interface_type(globals) == Form::memory_interface ) { | |
| 626 if( comp->isa(Component::USE) ) USE_of_memory = true; | |
| 627 if( comp->isa(Component::DEF) ) { | |
| 628 OperandForm *oper = form->is_operand(); | |
| 629 if( oper && oper->is_user_name_for_sReg() ) { | |
| 630 // Stack slots are unaliased memory handled by allocator | |
| 631 oper = oper; // debug stopping point !!!!! | |
| 632 } else { | |
| 633 DEF_of_memory = true; | |
| 634 } | |
| 635 } | |
| 636 } | |
| 637 } | |
| 638 return (USE_of_memory && !DEF_of_memory); | |
| 639 } | |
| 640 | |
| 641 | |
| 642 bool InstructForm::is_wide_memory_kill(FormDict &globals) const { | |
| 643 if( _matrule == NULL ) return false; | |
| 644 if( !_matrule->_opType ) return false; | |
| 645 | |
| 646 if( strcmp(_matrule->_opType,"MemBarRelease") == 0 ) return true; | |
| 647 if( strcmp(_matrule->_opType,"MemBarAcquire") == 0 ) return true; | |
|
3849
f1c12354c3f7
7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths
roland
parents:
3842
diff
changeset
|
648 if( strcmp(_matrule->_opType,"MemBarReleaseLock") == 0 ) return true; |
|
f1c12354c3f7
7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths
roland
parents:
3842
diff
changeset
|
649 if( strcmp(_matrule->_opType,"MemBarAcquireLock") == 0 ) return true; |
|
4763
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4120
diff
changeset
|
650 if( strcmp(_matrule->_opType,"MemBarStoreStore") == 0 ) return true; |
|
14439
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
651 if( strcmp(_matrule->_opType,"StoreFence") == 0 ) return true; |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
652 if( strcmp(_matrule->_opType,"LoadFence") == 0 ) return true; |
| 0 | 653 |
| 654 return false; | |
| 655 } | |
| 656 | |
| 657 int InstructForm::memory_operand(FormDict &globals) const { | |
| 658 // Machine independent loads must be checked for anti-dependences | |
| 659 // Check if instruction has a USE of a memory operand class, or a def. | |
| 660 int USE_of_memory = 0; | |
| 661 int DEF_of_memory = 0; | |
| 662 const char* last_memory_DEF = NULL; // to test DEF/USE pairing in asserts | |
| 663 Component *unique = NULL; | |
| 664 Component *comp = NULL; | |
| 665 ComponentList &components = (ComponentList &)_components; | |
| 666 | |
| 667 components.reset(); | |
| 668 while( (comp = components.iter()) != NULL ) { | |
| 669 const Form *form = globals[comp->_type]; | |
| 670 if( !form ) continue; | |
| 671 OpClassForm *op = form->is_opclass(); | |
| 672 if( !op ) continue; | |
| 673 if( op->stack_slots_only(globals) ) continue; | |
| 674 if( form->interface_type(globals) == Form::memory_interface ) { | |
| 675 if( comp->isa(Component::DEF) ) { | |
| 676 last_memory_DEF = comp->_name; | |
| 677 DEF_of_memory++; | |
| 678 unique = comp; | |
| 679 } else if( comp->isa(Component::USE) ) { | |
| 680 if( last_memory_DEF != NULL ) { | |
| 681 assert(0 == strcmp(last_memory_DEF, comp->_name), "every memory DEF is followed by a USE of the same name"); | |
| 682 last_memory_DEF = NULL; | |
| 683 } | |
| 684 USE_of_memory++; | |
| 685 if (DEF_of_memory == 0) // defs take precedence | |
| 686 unique = comp; | |
| 687 } else { | |
| 688 assert(last_memory_DEF == NULL, "unpaired memory DEF"); | |
| 689 } | |
| 690 } | |
| 691 } | |
| 692 assert(last_memory_DEF == NULL, "unpaired memory DEF"); | |
| 693 assert(USE_of_memory >= DEF_of_memory, "unpaired memory DEF"); | |
| 694 USE_of_memory -= DEF_of_memory; // treat paired DEF/USE as one occurrence | |
| 695 if( (USE_of_memory + DEF_of_memory) > 0 ) { | |
| 696 if( is_simple_chain_rule(globals) ) { | |
| 697 //fprintf(stderr, "Warning: chain rule is not really a memory user.\n"); | |
| 698 //((InstructForm*)this)->dump(); | |
| 699 // Preceding code prints nothing on sparc and these insns on intel: | |
| 700 // leaP8 leaP32 leaPIdxOff leaPIdxScale leaPIdxScaleOff leaP8 leaP32 | |
| 701 // leaPIdxOff leaPIdxScale leaPIdxScaleOff | |
| 702 return NO_MEMORY_OPERAND; | |
| 703 } | |
| 704 | |
| 705 if( DEF_of_memory == 1 ) { | |
| 706 assert(unique != NULL, ""); | |
| 707 if( USE_of_memory == 0 ) { | |
| 708 // unique def, no uses | |
| 709 } else { | |
| 710 // // unique def, some uses | |
| 711 // // must return bottom unless all uses match def | |
| 712 // unique = NULL; | |
| 713 } | |
| 714 } else if( DEF_of_memory > 0 ) { | |
| 715 // multiple defs, don't care about uses | |
| 716 unique = NULL; | |
| 717 } else if( USE_of_memory == 1) { | |
| 718 // unique use, no defs | |
| 719 assert(unique != NULL, ""); | |
| 720 } else if( USE_of_memory > 0 ) { | |
| 721 // multiple uses, no defs | |
| 722 unique = NULL; | |
| 723 } else { | |
| 724 assert(false, "bad case analysis"); | |
| 725 } | |
| 726 // process the unique DEF or USE, if there is one | |
| 727 if( unique == NULL ) { | |
| 728 return MANY_MEMORY_OPERANDS; | |
| 729 } else { | |
| 730 int pos = components.operand_position(unique->_name); | |
| 731 if( unique->isa(Component::DEF) ) { | |
| 732 pos += 1; // get corresponding USE from DEF | |
| 733 } | |
| 734 assert(pos >= 1, "I was just looking at it!"); | |
| 735 return pos; | |
| 736 } | |
| 737 } | |
| 738 | |
| 739 // missed the memory op?? | |
| 740 if( true ) { // %%% should not be necessary | |
| 741 if( is_ideal_store() != Form::none ) { | |
| 742 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); | |
| 743 ((InstructForm*)this)->dump(); | |
| 744 // pretend it has multiple defs and uses | |
| 745 return MANY_MEMORY_OPERANDS; | |
| 746 } | |
| 747 if( is_ideal_load() != Form::none ) { | |
| 748 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); | |
| 749 ((InstructForm*)this)->dump(); | |
| 750 // pretend it has multiple uses and no defs | |
| 751 return MANY_MEMORY_OPERANDS; | |
| 752 } | |
| 753 } | |
| 754 | |
| 755 return NO_MEMORY_OPERAND; | |
| 756 } | |
| 757 | |
| 758 | |
| 759 // This instruction captures the machine-independent bottom_type | |
| 760 // Expected use is for pointer vs oop determination for LoadP | |
|
1541
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1396
diff
changeset
|
761 bool InstructForm::captures_bottom_type(FormDict &globals) const { |
| 0 | 762 if( _matrule && _matrule->_rChild && |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
763 (!strcmp(_matrule->_rChild->_opType,"CastPP") || // new result type |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
764 !strcmp(_matrule->_rChild->_opType,"CastX2P") || // new result type |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
765 !strcmp(_matrule->_rChild->_opType,"DecodeN") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
766 !strcmp(_matrule->_rChild->_opType,"EncodeP") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
767 !strcmp(_matrule->_rChild->_opType,"DecodeNKlass") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
768 !strcmp(_matrule->_rChild->_opType,"EncodePKlass") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
769 !strcmp(_matrule->_rChild->_opType,"LoadN") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
770 !strcmp(_matrule->_rChild->_opType,"LoadNKlass") || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
771 !strcmp(_matrule->_rChild->_opType,"CreateEx") || // type of exception |
|
8117
706c919d3b56
8007722: C2: "assert(tp->base() != Type::AnyPtr) failed: not a bare pointer" at machnode.cpp:376
roland
parents:
7637
diff
changeset
|
772 !strcmp(_matrule->_rChild->_opType,"CheckCastPP") || |
|
706c919d3b56
8007722: C2: "assert(tp->base() != Type::AnyPtr) failed: not a bare pointer" at machnode.cpp:376
roland
parents:
7637
diff
changeset
|
773 !strcmp(_matrule->_rChild->_opType,"GetAndSetP") || |
|
706c919d3b56
8007722: C2: "assert(tp->base() != Type::AnyPtr) failed: not a bare pointer" at machnode.cpp:376
roland
parents:
7637
diff
changeset
|
774 !strcmp(_matrule->_rChild->_opType,"GetAndSetN")) ) return true; |
| 0 | 775 else if ( is_ideal_load() == Form::idealP ) return true; |
| 776 else if ( is_ideal_store() != Form::none ) return true; | |
| 777 | |
|
1541
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1396
diff
changeset
|
778 if (needs_base_oop_edge(globals)) return true; |
|
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1396
diff
changeset
|
779 |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
780 if (is_vector()) return true; |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
781 if (is_mach_constant()) return true; |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
782 |
| 0 | 783 return false; |
| 784 } | |
| 785 | |
| 786 | |
| 787 // Access instr_cost attribute or return NULL. | |
| 788 const char* InstructForm::cost() { | |
| 789 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { | |
| 790 if( strcmp(cur->_ident,AttributeForm::_ins_cost) == 0 ) { | |
| 791 return cur->_val; | |
| 792 } | |
| 793 } | |
| 794 return NULL; | |
| 795 } | |
| 796 | |
| 797 // Return count of top-level operands. | |
| 798 uint InstructForm::num_opnds() { | |
| 799 int num_opnds = _components.num_operands(); | |
| 800 | |
| 801 // Need special handling for matching some ideal nodes | |
| 802 // i.e. Matching a return node | |
| 803 /* | |
| 804 if( _matrule ) { | |
| 805 if( strcmp(_matrule->_opType,"Return" )==0 || | |
| 806 strcmp(_matrule->_opType,"Halt" )==0 ) | |
| 807 return 3; | |
| 808 } | |
| 809 */ | |
| 810 return num_opnds; | |
| 811 } | |
| 812 | |
| 10389 | 813 const char* InstructForm::opnd_ident(int idx) { |
| 6850 | 814 return _components.at(idx)->_name; |
| 815 } | |
| 816 | |
| 10389 | 817 const char* InstructForm::unique_opnd_ident(uint idx) { |
| 6850 | 818 uint i; |
| 819 for (i = 1; i < num_opnds(); ++i) { | |
| 820 if (unique_opnds_idx(i) == idx) { | |
| 821 break; | |
| 822 } | |
| 823 } | |
| 824 return (_components.at(i) != NULL) ? _components.at(i)->_name : ""; | |
| 825 } | |
| 826 | |
| 0 | 827 // Return count of unmatched operands. |
| 828 uint InstructForm::num_post_match_opnds() { | |
| 829 uint num_post_match_opnds = _components.count(); | |
| 830 uint num_match_opnds = _components.match_count(); | |
| 831 num_post_match_opnds = num_post_match_opnds - num_match_opnds; | |
| 832 | |
| 833 return num_post_match_opnds; | |
| 834 } | |
| 835 | |
| 836 // Return the number of leaves below this complex operand | |
| 837 uint InstructForm::num_consts(FormDict &globals) const { | |
| 838 if ( ! _matrule) return 0; | |
| 839 | |
| 840 // This is a recursive invocation on all operands in the matchrule | |
| 841 return _matrule->num_consts(globals); | |
| 842 } | |
| 843 | |
| 844 // Constants in match rule with specified type | |
| 845 uint InstructForm::num_consts(FormDict &globals, Form::DataType type) const { | |
| 846 if ( ! _matrule) return 0; | |
| 847 | |
| 848 // This is a recursive invocation on all operands in the matchrule | |
| 849 return _matrule->num_consts(globals, type); | |
| 850 } | |
| 851 | |
| 852 | |
| 853 // Return the register class associated with 'leaf'. | |
| 854 const char *InstructForm::out_reg_class(FormDict &globals) { | |
| 855 assert( false, "InstructForm::out_reg_class(FormDict &globals); Not Implemented"); | |
| 856 | |
| 857 return NULL; | |
| 858 } | |
| 859 | |
| 860 | |
| 861 | |
| 862 // Lookup the starting position of inputs we are interested in wrt. ideal nodes | |
| 863 uint InstructForm::oper_input_base(FormDict &globals) { | |
| 864 if( !_matrule ) return 1; // Skip control for most nodes | |
| 865 | |
| 866 // Need special handling for matching some ideal nodes | |
| 867 // i.e. Matching a return node | |
| 868 if( strcmp(_matrule->_opType,"Return" )==0 || | |
| 869 strcmp(_matrule->_opType,"Rethrow" )==0 || | |
| 870 strcmp(_matrule->_opType,"TailCall" )==0 || | |
| 871 strcmp(_matrule->_opType,"TailJump" )==0 || | |
| 872 strcmp(_matrule->_opType,"SafePoint" )==0 || | |
| 873 strcmp(_matrule->_opType,"Halt" )==0 ) | |
| 874 return AdlcVMDeps::Parms; // Skip the machine-state edges | |
| 875 | |
| 876 if( _matrule->_rChild && | |
|
986
62001a362ce9
6827605: new String intrinsics may prevent EA scalar replacement
kvn
parents:
855
diff
changeset
|
877 ( strcmp(_matrule->_rChild->_opType,"AryEq" )==0 || |
|
62001a362ce9
6827605: new String intrinsics may prevent EA scalar replacement
kvn
parents:
855
diff
changeset
|
878 strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
| 681 | 879 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
6850
diff
changeset
|
880 strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 || |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
6850
diff
changeset
|
881 strcmp(_matrule->_rChild->_opType,"EncodeISOArray")==0)) { |
|
986
62001a362ce9
6827605: new String intrinsics may prevent EA scalar replacement
kvn
parents:
855
diff
changeset
|
882 // String.(compareTo/equals/indexOf) and Arrays.equals |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
6850
diff
changeset
|
883 // and sun.nio.cs.iso8859_1$Encoder.EncodeISOArray |
|
986
62001a362ce9
6827605: new String intrinsics may prevent EA scalar replacement
kvn
parents:
855
diff
changeset
|
884 // take 1 control and 1 memory edges. |
|
62001a362ce9
6827605: new String intrinsics may prevent EA scalar replacement
kvn
parents:
855
diff
changeset
|
885 return 2; |
| 0 | 886 } |
| 887 | |
| 888 // Check for handling of 'Memory' input/edge in the ideal world. | |
| 889 // The AD file writer is shielded from knowledge of these edges. | |
| 890 int base = 1; // Skip control | |
| 891 base += _matrule->needs_ideal_memory_edge(globals); | |
| 892 | |
| 893 // Also skip the base-oop value for uses of derived oops. | |
| 894 // The AD file writer is shielded from knowledge of these edges. | |
| 895 base += needs_base_oop_edge(globals); | |
| 896 | |
| 897 return base; | |
| 898 } | |
| 899 | |
| 6850 | 900 // This function determines the order of the MachOper in _opnds[] |
| 901 // by writing the operand names into the _components list. | |
| 902 // | |
| 0 | 903 // Implementation does not modify state of internal structures |
| 904 void InstructForm::build_components() { | |
| 905 // Add top-level operands to the components | |
| 906 if (_matrule) _matrule->append_components(_localNames, _components); | |
| 907 | |
| 908 // Add parameters that "do not appear in match rule". | |
| 909 bool has_temp = false; | |
| 910 const char *name; | |
| 911 const char *kill_name = NULL; | |
| 912 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { | |
| 913 OperandForm *opForm = (OperandForm*)_localNames[name]; | |
| 914 | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
915 Effect* e = NULL; |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
916 { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
917 const Form* form = _effects[name]; |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
918 e = form ? form->is_effect() : NULL; |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
919 } |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
920 |
| 0 | 921 if (e != NULL) { |
| 922 has_temp |= e->is(Component::TEMP); | |
| 923 | |
| 924 // KILLs must be declared after any TEMPs because TEMPs are real | |
| 925 // uses so their operand numbering must directly follow the real | |
| 926 // inputs from the match rule. Fixing the numbering seems | |
| 927 // complex so simply enforce the restriction during parse. | |
| 928 if (kill_name != NULL && | |
| 929 e->isa(Component::TEMP) && !e->isa(Component::DEF)) { | |
| 930 OperandForm* kill = (OperandForm*)_localNames[kill_name]; | |
| 931 globalAD->syntax_err(_linenum, "%s: %s %s must be at the end of the argument list\n", | |
| 932 _ident, kill->_ident, kill_name); | |
|
602
ed6404fac86b
6810855: KILL vs. TEMP ordering restrictions are too strong
never
parents:
599
diff
changeset
|
933 } else if (e->isa(Component::KILL) && !e->isa(Component::USE)) { |
| 0 | 934 kill_name = name; |
| 935 } | |
| 936 } | |
| 937 | |
| 938 const Component *component = _components.search(name); | |
| 939 if ( component == NULL ) { | |
| 940 if (e) { | |
| 941 _components.insert(name, opForm->_ident, e->_use_def, false); | |
| 942 component = _components.search(name); | |
| 943 if (component->isa(Component::USE) && !component->isa(Component::TEMP) && _matrule) { | |
| 944 const Form *form = globalAD->globalNames()[component->_type]; | |
| 945 assert( form, "component type must be a defined form"); | |
| 946 OperandForm *op = form->is_operand(); | |
| 947 if (op->_interface && op->_interface->is_RegInterface()) { | |
| 948 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", | |
| 949 _ident, opForm->_ident, name); | |
| 950 } | |
| 951 } | |
| 952 } else { | |
| 953 // This would be a nice warning but it triggers in a few places in a benign way | |
| 954 // if (_matrule != NULL && !expands()) { | |
| 955 // globalAD->syntax_err(_linenum, "%s: %s %s not mentioned in effect or match rule\n", | |
| 956 // _ident, opForm->_ident, name); | |
| 957 // } | |
| 958 _components.insert(name, opForm->_ident, Component::INVALID, false); | |
| 959 } | |
| 960 } | |
| 961 else if (e) { | |
| 962 // Component was found in the list | |
| 963 // Check if there is a new effect that requires an extra component. | |
| 964 // This happens when adding 'USE' to a component that is not yet one. | |
| 965 if ((!component->isa( Component::USE) && ((e->_use_def & Component::USE) != 0))) { | |
| 966 if (component->isa(Component::USE) && _matrule) { | |
| 967 const Form *form = globalAD->globalNames()[component->_type]; | |
| 968 assert( form, "component type must be a defined form"); | |
| 969 OperandForm *op = form->is_operand(); | |
| 970 if (op->_interface && op->_interface->is_RegInterface()) { | |
| 971 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", | |
| 972 _ident, opForm->_ident, name); | |
| 973 } | |
| 974 } | |
| 975 _components.insert(name, opForm->_ident, e->_use_def, false); | |
| 976 } else { | |
| 977 Component *comp = (Component*)component; | |
| 978 comp->promote_use_def_info(e->_use_def); | |
| 979 } | |
| 980 // Component positions are zero based. | |
| 981 int pos = _components.operand_position(name); | |
| 982 assert( ! (component->isa(Component::DEF) && (pos >= 1)), | |
| 983 "Component::DEF can only occur in the first position"); | |
| 984 } | |
| 985 } | |
| 986 | |
| 987 // Resolving the interactions between expand rules and TEMPs would | |
| 988 // be complex so simply disallow it. | |
| 989 if (_matrule == NULL && has_temp) { | |
| 990 globalAD->syntax_err(_linenum, "%s: TEMPs without match rule isn't supported\n", _ident); | |
| 991 } | |
| 992 | |
| 993 return; | |
| 994 } | |
| 995 | |
| 996 // Return zero-based position in component list; -1 if not in list. | |
| 997 int InstructForm::operand_position(const char *name, int usedef) { | |
| 6850 | 998 return unique_opnds_idx(_components.operand_position(name, usedef, this)); |
| 0 | 999 } |
| 1000 | |
| 1001 int InstructForm::operand_position_format(const char *name) { | |
| 6850 | 1002 return unique_opnds_idx(_components.operand_position_format(name, this)); |
| 0 | 1003 } |
| 1004 | |
| 1005 // Return zero-based position in component list; -1 if not in list. | |
| 1006 int InstructForm::label_position() { | |
| 1007 return unique_opnds_idx(_components.label_position()); | |
| 1008 } | |
| 1009 | |
| 1010 int InstructForm::method_position() { | |
| 1011 return unique_opnds_idx(_components.method_position()); | |
| 1012 } | |
| 1013 | |
| 1014 // Return number of relocation entries needed for this instruction. | |
| 1015 uint InstructForm::reloc(FormDict &globals) { | |
| 1016 uint reloc_entries = 0; | |
| 1017 // Check for "Call" nodes | |
| 1018 if ( is_ideal_call() ) ++reloc_entries; | |
| 1019 if ( is_ideal_return() ) ++reloc_entries; | |
| 1020 if ( is_ideal_safepoint() ) ++reloc_entries; | |
| 1021 | |
| 1022 | |
| 1023 // Check if operands MAYBE oop pointers, by checking for ConP elements | |
| 1024 // Proceed through the leaves of the match-tree and check for ConPs | |
| 1025 if ( _matrule != NULL ) { | |
| 1026 uint position = 0; | |
| 1027 const char *result = NULL; | |
| 1028 const char *name = NULL; | |
| 1029 const char *opType = NULL; | |
| 1030 while (_matrule->base_operand(position, globals, result, name, opType)) { | |
| 1031 if ( strcmp(opType,"ConP") == 0 ) { | |
| 1032 #ifdef SPARC | |
| 1033 reloc_entries += 2; // 1 for sethi + 1 for setlo | |
| 1034 #else | |
| 1035 ++reloc_entries; | |
| 1036 #endif | |
| 1037 } | |
| 1038 ++position; | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1042 // Above is only a conservative estimate | |
| 1043 // because it did not check contents of operand classes. | |
| 1044 // !!!!! !!!!! | |
| 1045 // Add 1 to reloc info for each operand class in the component list. | |
| 1046 Component *comp; | |
| 1047 _components.reset(); | |
| 1048 while ( (comp = _components.iter()) != NULL ) { | |
| 1049 const Form *form = globals[comp->_type]; | |
| 1050 assert( form, "Did not find component's type in global names"); | |
| 1051 const OpClassForm *opc = form->is_opclass(); | |
| 1052 const OperandForm *oper = form->is_operand(); | |
| 1053 if ( opc && (oper == NULL) ) { | |
| 1054 ++reloc_entries; | |
| 1055 } else if ( oper ) { | |
| 1056 // floats and doubles loaded out of method's constant pool require reloc info | |
| 1057 Form::DataType type = oper->is_base_constant(globals); | |
| 1058 if ( (type == Form::idealF) || (type == Form::idealD) ) { | |
| 1059 ++reloc_entries; | |
| 1060 } | |
| 1061 } | |
| 1062 } | |
| 1063 | |
| 1064 // Float and Double constants may come from the CodeBuffer table | |
| 1065 // and require relocatable addresses for access | |
| 1066 // !!!!! | |
| 1067 // Check for any component being an immediate float or double. | |
| 1068 Form::DataType data_type = is_chain_of_constant(globals); | |
| 1069 if( data_type==idealD || data_type==idealF ) { | |
| 1070 #ifdef SPARC | |
| 1071 // sparc required more relocation entries for floating constants | |
| 1072 // (expires 9/98) | |
| 1073 reloc_entries += 6; | |
| 1074 #else | |
| 1075 reloc_entries++; | |
| 1076 #endif | |
| 1077 } | |
| 1078 | |
| 1079 return reloc_entries; | |
| 1080 } | |
| 1081 | |
| 1082 // Utility function defined in archDesc.cpp | |
| 1083 extern bool is_def(int usedef); | |
| 1084 | |
| 1085 // Return the result of reducing an instruction | |
| 1086 const char *InstructForm::reduce_result() { | |
| 1087 const char* result = "Universe"; // default | |
| 1088 _components.reset(); | |
| 1089 Component *comp = _components.iter(); | |
| 1090 if (comp != NULL && comp->isa(Component::DEF)) { | |
| 1091 result = comp->_type; | |
| 1092 // Override this if the rule is a store operation: | |
| 1093 if (_matrule && _matrule->_rChild && | |
| 1094 is_store_to_memory(_matrule->_rChild->_opType)) | |
| 1095 result = "Universe"; | |
| 1096 } | |
| 1097 return result; | |
| 1098 } | |
| 1099 | |
| 1100 // Return the name of the operand on the right hand side of the binary match | |
| 1101 // Return NULL if there is no right hand side | |
| 1102 const char *InstructForm::reduce_right(FormDict &globals) const { | |
| 1103 if( _matrule == NULL ) return NULL; | |
| 1104 return _matrule->reduce_right(globals); | |
| 1105 } | |
| 1106 | |
| 1107 // Similar for left | |
| 1108 const char *InstructForm::reduce_left(FormDict &globals) const { | |
| 1109 if( _matrule == NULL ) return NULL; | |
| 1110 return _matrule->reduce_left(globals); | |
| 1111 } | |
| 1112 | |
| 1113 | |
| 1114 // Base class for this instruction, MachNode except for calls | |
|
1541
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1396
diff
changeset
|
1115 const char *InstructForm::mach_base_class(FormDict &globals) const { |
| 0 | 1116 if( is_ideal_call() == Form::JAVA_STATIC ) { |
| 1117 return "MachCallStaticJavaNode"; | |
| 1118 } | |
| 1119 else if( is_ideal_call() == Form::JAVA_DYNAMIC ) { | |
| 1120 return "MachCallDynamicJavaNode"; | |
| 1121 } | |
| 1122 else if( is_ideal_call() == Form::JAVA_RUNTIME ) { | |
| 1123 return "MachCallRuntimeNode"; | |
| 1124 } | |
| 1125 else if( is_ideal_call() == Form::JAVA_LEAF ) { | |
| 1126 return "MachCallLeafNode"; | |
| 1127 } | |
| 1128 else if (is_ideal_return()) { | |
| 1129 return "MachReturnNode"; | |
| 1130 } | |
| 1131 else if (is_ideal_halt()) { | |
| 1132 return "MachHaltNode"; | |
| 1133 } | |
| 1134 else if (is_ideal_safepoint()) { | |
| 1135 return "MachSafePointNode"; | |
| 1136 } | |
| 1137 else if (is_ideal_if()) { | |
| 1138 return "MachIfNode"; | |
| 1139 } | |
| 3842 | 1140 else if (is_ideal_goto()) { |
| 1141 return "MachGotoNode"; | |
| 1142 } | |
| 0 | 1143 else if (is_ideal_fastlock()) { |
| 1144 return "MachFastLockNode"; | |
| 1145 } | |
| 1146 else if (is_ideal_nop()) { | |
| 1147 return "MachNopNode"; | |
| 1148 } | |
| 2008 | 1149 else if (is_mach_constant()) { |
| 1150 return "MachConstantNode"; | |
| 1151 } | |
|
1541
b5fdf39b9749
6953576: bottom_type for matched AddPNodes doesn't always agree with ideal
never
parents:
1396
diff
changeset
|
1152 else if (captures_bottom_type(globals)) { |
| 0 | 1153 return "MachTypeNode"; |
| 1154 } else { | |
| 1155 return "MachNode"; | |
| 1156 } | |
| 1157 assert( false, "ShouldNotReachHere()"); | |
| 1158 return NULL; | |
| 1159 } | |
| 1160 | |
| 1161 // Compare the instruction predicates for textual equality | |
| 1162 bool equivalent_predicates( const InstructForm *instr1, const InstructForm *instr2 ) { | |
| 1163 const Predicate *pred1 = instr1->_predicate; | |
| 1164 const Predicate *pred2 = instr2->_predicate; | |
| 1165 if( pred1 == NULL && pred2 == NULL ) { | |
| 1166 // no predicates means they are identical | |
| 1167 return true; | |
| 1168 } | |
| 1169 if( pred1 != NULL && pred2 != NULL ) { | |
| 1170 // compare the predicates | |
|
475
284d0af00d53
6771309: debugging AD files is difficult without #line directives in generated code
jrose
parents:
420
diff
changeset
|
1171 if (ADLParser::equivalent_expressions(pred1->_pred, pred2->_pred)) { |
| 0 | 1172 return true; |
| 1173 } | |
| 1174 } | |
| 1175 | |
| 1176 return false; | |
| 1177 } | |
| 1178 | |
| 1179 // Check if this instruction can cisc-spill to 'alternate' | |
| 1180 bool InstructForm::cisc_spills_to(ArchDesc &AD, InstructForm *instr) { | |
| 1181 assert( _matrule != NULL && instr->_matrule != NULL, "must have match rules"); | |
| 1182 // Do not replace if a cisc-version has been found. | |
| 1183 if( cisc_spill_operand() != Not_cisc_spillable ) return false; | |
| 1184 | |
| 1185 int cisc_spill_operand = Maybe_cisc_spillable; | |
| 1186 char *result = NULL; | |
| 1187 char *result2 = NULL; | |
| 1188 const char *op_name = NULL; | |
| 1189 const char *reg_type = NULL; | |
| 1190 FormDict &globals = AD.globalNames(); | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
1191 cisc_spill_operand = _matrule->matchrule_cisc_spill_match(globals, AD.get_registers(), instr->_matrule, op_name, reg_type); |
| 0 | 1192 if( (cisc_spill_operand != Not_cisc_spillable) && (op_name != NULL) && equivalent_predicates(this, instr) ) { |
| 1193 cisc_spill_operand = operand_position(op_name, Component::USE); | |
| 1194 int def_oper = operand_position(op_name, Component::DEF); | |
| 1195 if( def_oper == NameList::Not_in_list && instr->num_opnds() == num_opnds()) { | |
| 1196 // Do not support cisc-spilling for destination operands and | |
| 1197 // make sure they have the same number of operands. | |
| 1198 _cisc_spill_alternate = instr; | |
| 1199 instr->set_cisc_alternate(true); | |
| 1200 if( AD._cisc_spill_debug ) { | |
| 1201 fprintf(stderr, "Instruction %s cisc-spills-to %s\n", _ident, instr->_ident); | |
| 1202 fprintf(stderr, " using operand %s %s at index %d\n", reg_type, op_name, cisc_spill_operand); | |
| 1203 } | |
| 1204 // Record that a stack-version of the reg_mask is needed | |
| 1205 // !!!!! | |
| 1206 OperandForm *oper = (OperandForm*)(globals[reg_type]->is_operand()); | |
| 1207 assert( oper != NULL, "cisc-spilling non operand"); | |
| 1208 const char *reg_class_name = oper->constrained_reg_class(); | |
| 1209 AD.set_stack_or_reg(reg_class_name); | |
| 1210 const char *reg_mask_name = AD.reg_mask(*oper); | |
| 1211 set_cisc_reg_mask_name(reg_mask_name); | |
| 1212 const char *stack_or_reg_mask_name = AD.stack_or_reg_mask(*oper); | |
| 1213 } else { | |
| 1214 cisc_spill_operand = Not_cisc_spillable; | |
| 1215 } | |
| 1216 } else { | |
| 1217 cisc_spill_operand = Not_cisc_spillable; | |
| 1218 } | |
| 1219 | |
| 1220 set_cisc_spill_operand(cisc_spill_operand); | |
| 1221 return (cisc_spill_operand != Not_cisc_spillable); | |
| 1222 } | |
| 1223 | |
| 1224 // Check to see if this instruction can be replaced with the short branch | |
| 1225 // instruction `short-branch' | |
| 1226 bool InstructForm::check_branch_variant(ArchDesc &AD, InstructForm *short_branch) { | |
| 1227 if (_matrule != NULL && | |
| 1228 this != short_branch && // Don't match myself | |
| 1229 !is_short_branch() && // Don't match another short branch variant | |
| 1230 reduce_result() != NULL && | |
| 1231 strcmp(reduce_result(), short_branch->reduce_result()) == 0 && | |
| 1232 _matrule->equivalent(AD.globalNames(), short_branch->_matrule)) { | |
| 1233 // The instructions are equivalent. | |
| 3851 | 1234 |
| 1235 // Now verify that both instructions have the same parameters and | |
| 1236 // the same effects. Both branch forms should have the same inputs | |
| 1237 // and resulting projections to correctly replace a long branch node | |
| 1238 // with corresponding short branch node during code generation. | |
| 1239 | |
| 1240 bool different = false; | |
| 1241 if (short_branch->_components.count() != _components.count()) { | |
| 1242 different = true; | |
| 1243 } else if (_components.count() > 0) { | |
| 1244 short_branch->_components.reset(); | |
| 1245 _components.reset(); | |
| 1246 Component *comp; | |
| 1247 while ((comp = _components.iter()) != NULL) { | |
| 1248 Component *short_comp = short_branch->_components.iter(); | |
| 1249 if (short_comp == NULL || | |
| 1250 short_comp->_type != comp->_type || | |
| 1251 short_comp->_usedef != comp->_usedef) { | |
| 1252 different = true; | |
| 1253 break; | |
| 1254 } | |
| 1255 } | |
| 1256 if (short_branch->_components.iter() != NULL) | |
| 1257 different = true; | |
| 1258 } | |
| 1259 if (different) { | |
| 1260 globalAD->syntax_err(short_branch->_linenum, "Instruction %s and its short form %s have different parameters\n", _ident, short_branch->_ident); | |
| 1261 } | |
| 6850 | 1262 if (AD._adl_debug > 1 || AD._short_branch_debug) { |
| 0 | 1263 fprintf(stderr, "Instruction %s has short form %s\n", _ident, short_branch->_ident); |
| 1264 } | |
| 1265 _short_branch_form = short_branch; | |
| 1266 return true; | |
| 1267 } | |
| 1268 return false; | |
| 1269 } | |
| 1270 | |
| 1271 | |
| 1272 // --------------------------- FILE *output_routines | |
| 1273 // | |
| 1274 // Generate the format call for the replacement variable | |
| 1275 void InstructForm::rep_var_format(FILE *fp, const char *rep_var) { | |
| 2008 | 1276 // Handle special constant table variables. |
| 1277 if (strcmp(rep_var, "constanttablebase") == 0) { | |
| 1278 fprintf(fp, "char reg[128]; ra->dump_register(in(mach_constant_base_node_input()), reg);\n"); | |
|
3965
ae839d1e7d4c
7096010: c2: running with +PrintOptoAssembly crashes the VM when $constanttablebase is used
roland
parents:
3854
diff
changeset
|
1279 fprintf(fp, " st->print(\"%%s\", reg);\n"); |
| 2008 | 1280 return; |
| 1281 } | |
| 1282 if (strcmp(rep_var, "constantoffset") == 0) { | |
|
14431
1410ad6b05f1
8028401: PPC (part 117): Improve usability of adlc and format() functionality.
goetz
parents:
14428
diff
changeset
|
1283 fprintf(fp, "st->print(\"#%%d\", constant_offset_unchecked());\n"); |
| 2008 | 1284 return; |
| 1285 } | |
| 1286 if (strcmp(rep_var, "constantaddress") == 0) { | |
|
14431
1410ad6b05f1
8028401: PPC (part 117): Improve usability of adlc and format() functionality.
goetz
parents:
14428
diff
changeset
|
1287 fprintf(fp, "st->print(\"constant table base + #%%d\", constant_offset_unchecked());\n"); |
| 2008 | 1288 return; |
| 1289 } | |
| 1290 | |
| 0 | 1291 // Find replacement variable's type |
| 1292 const Form *form = _localNames[rep_var]; | |
| 1293 if (form == NULL) { | |
| 6850 | 1294 globalAD->syntax_err(_linenum, "Unknown replacement variable %s in format statement of %s.", |
| 1295 rep_var, _ident); | |
| 1296 return; | |
| 0 | 1297 } |
| 1298 OpClassForm *opc = form->is_opclass(); | |
| 1299 assert( opc, "replacement variable was not found in local names"); | |
| 1300 // Lookup the index position of the replacement variable | |
| 1301 int idx = operand_position_format(rep_var); | |
| 1302 if ( idx == -1 ) { | |
| 6850 | 1303 globalAD->syntax_err(_linenum, "Could not find replacement variable %s in format statement of %s.\n", |
| 1304 rep_var, _ident); | |
| 1305 assert(strcmp(opc->_ident, "label") == 0, "Unimplemented"); | |
| 1306 return; | |
| 0 | 1307 } |
| 1308 | |
| 1309 if (is_noninput_operand(idx)) { | |
| 1310 // This component isn't in the input array. Print out the static | |
| 1311 // name of the register. | |
| 1312 OperandForm* oper = form->is_operand(); | |
| 1313 if (oper != NULL && oper->is_bound_register()) { | |
| 1314 const RegDef* first = oper->get_RegClass()->find_first_elem(); | |
| 6850 | 1315 fprintf(fp, " st->print(\"%s\");\n", first->_regname); |
| 0 | 1316 } else { |
| 1317 globalAD->syntax_err(_linenum, "In %s can't find format for %s %s", _ident, opc->_ident, rep_var); | |
| 1318 } | |
| 1319 } else { | |
| 1320 // Output the format call for this operand | |
| 1321 fprintf(fp,"opnd_array(%d)->",idx); | |
| 1322 if (idx == 0) | |
| 1323 fprintf(fp,"int_format(ra, this, st); // %s\n", rep_var); | |
| 1324 else | |
| 1325 fprintf(fp,"ext_format(ra, this,idx%d, st); // %s\n", idx, rep_var ); | |
| 1326 } | |
| 1327 } | |
| 1328 | |
| 1329 // Seach through operands to determine parameters unique positions. | |
| 1330 void InstructForm::set_unique_opnds() { | |
| 1331 uint* uniq_idx = NULL; | |
| 10389 | 1332 uint nopnds = num_opnds(); |
| 0 | 1333 uint num_uniq = nopnds; |
| 10389 | 1334 uint i; |
|
599
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1335 _uniq_idx_length = 0; |
| 10389 | 1336 if (nopnds > 0) { |
|
599
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1337 // Allocate index array. Worst case we're mapping from each |
|
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1338 // component back to an index and any DEF always goes at 0 so the |
|
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1339 // length of the array has to be the number of components + 1. |
|
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1340 _uniq_idx_length = _components.count() + 1; |
| 10389 | 1341 uniq_idx = (uint*) malloc(sizeof(uint) * _uniq_idx_length); |
| 1342 for (i = 0; i < _uniq_idx_length; i++) { | |
| 0 | 1343 uniq_idx[i] = i; |
| 1344 } | |
| 1345 } | |
| 1346 // Do it only if there is a match rule and no expand rule. With an | |
| 1347 // expand rule it is done by creating new mach node in Expand() | |
| 1348 // method. | |
| 10389 | 1349 if (nopnds > 0 && _matrule != NULL && _exprule == NULL) { |
| 0 | 1350 const char *name; |
| 1351 uint count; | |
| 1352 bool has_dupl_use = false; | |
| 1353 | |
| 1354 _parameters.reset(); | |
| 10389 | 1355 while ((name = _parameters.iter()) != NULL) { |
| 0 | 1356 count = 0; |
| 10389 | 1357 uint position = 0; |
| 1358 uint uniq_position = 0; | |
| 0 | 1359 _components.reset(); |
| 1360 Component *comp = NULL; | |
| 10389 | 1361 if (sets_result()) { |
| 0 | 1362 comp = _components.iter(); |
| 1363 position++; | |
| 1364 } | |
| 1365 // The next code is copied from the method operand_position(). | |
| 1366 for (; (comp = _components.iter()) != NULL; ++position) { | |
| 1367 // When the first component is not a DEF, | |
| 1368 // leave space for the result operand! | |
| 10389 | 1369 if (position==0 && (!comp->isa(Component::DEF))) { |
| 0 | 1370 ++position; |
| 1371 } | |
| 10389 | 1372 if (strcmp(name, comp->_name) == 0) { |
| 1373 if (++count > 1) { | |
|
599
0ad1cb407fa1
6805427: adlc compiler may generate incorrect machnode emission code
never
parents:
558
diff
changeset
|
1374 assert(position < _uniq_idx_length, "out of bounds"); |
| 0 | 1375 uniq_idx[position] = uniq_position; |
| 1376 has_dupl_use = true; | |
| 1377 } else { | |
| 1378 uniq_position = position; | |
| 1379 } | |
| 1380 } | |
| 10389 | 1381 if (comp->isa(Component::DEF) && comp->isa(Component::USE)) { |
| 0 | 1382 ++position; |
| 10389 | 1383 if (position != 1) |
| 0 | 1384 --position; // only use two slots for the 1st USE_DEF |
| 1385 } | |
| 1386 } | |
| 1387 } | |
| 10389 | 1388 if (has_dupl_use) { |
| 1389 for (i = 1; i < nopnds; i++) { | |
| 1390 if (i != uniq_idx[i]) { | |
| 0 | 1391 break; |
| 10389 | 1392 } |
| 1393 } | |
| 1394 uint j = i; | |
| 1395 for (; i < nopnds; i++) { | |
| 1396 if (i == uniq_idx[i]) { | |
| 0 | 1397 uniq_idx[i] = j++; |
| 10389 | 1398 } |
| 1399 } | |
| 0 | 1400 num_uniq = j; |
| 1401 } | |
| 1402 } | |
| 1403 _uniq_idx = uniq_idx; | |
| 1404 _num_uniq = num_uniq; | |
| 1405 } | |
| 1406 | |
| 605 | 1407 // Generate index values needed for determining the operand position |
| 0 | 1408 void InstructForm::index_temps(FILE *fp, FormDict &globals, const char *prefix, const char *receiver) { |
| 1409 uint idx = 0; // position of operand in match rule | |
| 1410 int cur_num_opnds = num_opnds(); | |
| 1411 | |
| 1412 // Compute the index into vector of operand pointers: | |
| 1413 // idx0=0 is used to indicate that info comes from this same node, not from input edge. | |
| 1414 // idx1 starts at oper_input_base() | |
| 1415 if ( cur_num_opnds >= 1 ) { | |
| 6850 | 1416 fprintf(fp," // Start at oper_input_base() and count operands\n"); |
| 1417 fprintf(fp," unsigned %sidx0 = %d;\n", prefix, oper_input_base(globals)); | |
| 1418 fprintf(fp," unsigned %sidx1 = %d;", prefix, oper_input_base(globals)); | |
| 1419 fprintf(fp," \t// %s\n", unique_opnd_ident(1)); | |
| 0 | 1420 |
| 1421 // Generate starting points for other unique operands if they exist | |
| 1422 for ( idx = 2; idx < num_unique_opnds(); ++idx ) { | |
| 1423 if( *receiver == 0 ) { | |
| 6850 | 1424 fprintf(fp," unsigned %sidx%d = %sidx%d + opnd_array(%d)->num_edges();", |
| 0 | 1425 prefix, idx, prefix, idx-1, idx-1 ); |
| 1426 } else { | |
| 6850 | 1427 fprintf(fp," unsigned %sidx%d = %sidx%d + %s_opnds[%d]->num_edges();", |
| 0 | 1428 prefix, idx, prefix, idx-1, receiver, idx-1 ); |
| 1429 } | |
| 6850 | 1430 fprintf(fp," \t// %s\n", unique_opnd_ident(idx)); |
| 0 | 1431 } |
| 1432 } | |
| 1433 if( *receiver != 0 ) { | |
| 1434 // This value is used by generate_peepreplace when copying a node. | |
| 1435 // Don't emit it in other cases since it can hide bugs with the | |
| 1436 // use invalid idx's. | |
| 6850 | 1437 fprintf(fp," unsigned %sidx%d = %sreq(); \n", prefix, idx, receiver); |
| 0 | 1438 } |
| 1439 | |
| 1440 } | |
| 1441 | |
| 1442 // --------------------------- | |
| 1443 bool InstructForm::verify() { | |
| 1444 // !!!!! !!!!! | |
| 1445 // Check that a "label" operand occurs last in the operand list, if present | |
| 1446 return true; | |
| 1447 } | |
| 1448 | |
| 1449 void InstructForm::dump() { | |
| 1450 output(stderr); | |
| 1451 } | |
| 1452 | |
| 1453 void InstructForm::output(FILE *fp) { | |
| 1454 fprintf(fp,"\nInstruction: %s\n", (_ident?_ident:"")); | |
| 1455 if (_matrule) _matrule->output(fp); | |
| 1456 if (_insencode) _insencode->output(fp); | |
| 2008 | 1457 if (_constant) _constant->output(fp); |
| 0 | 1458 if (_opcode) _opcode->output(fp); |
| 1459 if (_attribs) _attribs->output(fp); | |
| 1460 if (_predicate) _predicate->output(fp); | |
| 1461 if (_effects.Size()) { | |
| 1462 fprintf(fp,"Effects\n"); | |
| 1463 _effects.dump(); | |
| 1464 } | |
| 1465 if (_exprule) _exprule->output(fp); | |
| 1466 if (_rewrule) _rewrule->output(fp); | |
| 1467 if (_format) _format->output(fp); | |
| 1468 if (_peephole) _peephole->output(fp); | |
| 1469 } | |
| 1470 | |
| 1471 void MachNodeForm::dump() { | |
| 1472 output(stderr); | |
| 1473 } | |
| 1474 | |
| 1475 void MachNodeForm::output(FILE *fp) { | |
| 1476 fprintf(fp,"\nMachNode: %s\n", (_ident?_ident:"")); | |
| 1477 } | |
| 1478 | |
| 1479 //------------------------------build_predicate-------------------------------- | |
| 1480 // Build instruction predicates. If the user uses the same operand name | |
| 1481 // twice, we need to check that the operands are pointer-eequivalent in | |
| 1482 // the DFA during the labeling process. | |
| 1483 Predicate *InstructForm::build_predicate() { | |
| 1484 char buf[1024], *s=buf; | |
| 1485 Dict names(cmpstr,hashstr,Form::arena); // Map Names to counts | |
| 1486 | |
| 1487 MatchNode *mnode = | |
| 1488 strcmp(_matrule->_opType, "Set") ? _matrule : _matrule->_rChild; | |
| 1489 mnode->count_instr_names(names); | |
| 1490 | |
| 1491 uint first = 1; | |
| 1492 // Start with the predicate supplied in the .ad file. | |
| 1493 if( _predicate ) { | |
| 1494 if( first ) first=0; | |
| 1495 strcpy(s,"("); s += strlen(s); | |
| 1496 strcpy(s,_predicate->_pred); | |
| 1497 s += strlen(s); | |
| 1498 strcpy(s,")"); s += strlen(s); | |
| 1499 } | |
| 1500 for( DictI i(&names); i.test(); ++i ) { | |
| 1501 uintptr_t cnt = (uintptr_t)i._value; | |
| 1502 if( cnt > 1 ) { // Need a predicate at all? | |
| 1503 assert( cnt == 2, "Unimplemented" ); | |
| 1504 // Handle many pairs | |
| 1505 if( first ) first=0; | |
| 1506 else { // All tests must pass, so use '&&' | |
| 1507 strcpy(s," && "); | |
| 1508 s += strlen(s); | |
| 1509 } | |
| 1510 // Add predicate to working buffer | |
| 1511 sprintf(s,"/*%s*/(",(char*)i._key); | |
| 1512 s += strlen(s); | |
| 1513 mnode->build_instr_pred(s,(char*)i._key,0); | |
| 1514 s += strlen(s); | |
| 1515 strcpy(s," == "); s += strlen(s); | |
| 1516 mnode->build_instr_pred(s,(char*)i._key,1); | |
| 1517 s += strlen(s); | |
| 1518 strcpy(s,")"); s += strlen(s); | |
| 1519 } | |
| 1520 } | |
| 1521 if( s == buf ) s = NULL; | |
| 1522 else { | |
| 1523 assert( strlen(buf) < sizeof(buf), "String buffer overflow" ); | |
| 1524 s = strdup(buf); | |
| 1525 } | |
| 1526 return new Predicate(s); | |
| 1527 } | |
| 1528 | |
| 1529 //------------------------------EncodeForm------------------------------------- | |
| 1530 // Constructor | |
| 1531 EncodeForm::EncodeForm() | |
| 1532 : _encClass(cmpstr,hashstr, Form::arena) { | |
| 1533 } | |
| 1534 EncodeForm::~EncodeForm() { | |
| 1535 } | |
| 1536 | |
| 1537 // record a new register class | |
| 1538 EncClass *EncodeForm::add_EncClass(const char *className) { | |
| 1539 EncClass *encClass = new EncClass(className); | |
| 1540 _eclasses.addName(className); | |
| 1541 _encClass.Insert(className,encClass); | |
| 1542 return encClass; | |
| 1543 } | |
| 1544 | |
| 1545 // Lookup the function body for an encoding class | |
| 1546 EncClass *EncodeForm::encClass(const char *className) { | |
| 1547 assert( className != NULL, "Must provide a defined encoding name"); | |
| 1548 | |
| 1549 EncClass *encClass = (EncClass*)_encClass[className]; | |
| 1550 return encClass; | |
| 1551 } | |
| 1552 | |
| 1553 // Lookup the function body for an encoding class | |
| 1554 const char *EncodeForm::encClassBody(const char *className) { | |
| 1555 if( className == NULL ) return NULL; | |
| 1556 | |
| 1557 EncClass *encClass = (EncClass*)_encClass[className]; | |
| 1558 assert( encClass != NULL, "Encode Class is missing."); | |
| 1559 encClass->_code.reset(); | |
| 1560 const char *code = (const char*)encClass->_code.iter(); | |
| 1561 assert( code != NULL, "Found an empty encode class body."); | |
| 1562 | |
| 1563 return code; | |
| 1564 } | |
| 1565 | |
| 1566 // Lookup the function body for an encoding class | |
| 1567 const char *EncodeForm::encClassPrototype(const char *className) { | |
| 1568 assert( className != NULL, "Encode class name must be non NULL."); | |
| 1569 | |
| 1570 return className; | |
| 1571 } | |
| 1572 | |
| 1573 void EncodeForm::dump() { // Debug printer | |
| 1574 output(stderr); | |
| 1575 } | |
| 1576 | |
| 1577 void EncodeForm::output(FILE *fp) { // Write info to output files | |
| 1578 const char *name; | |
| 1579 fprintf(fp,"\n"); | |
| 1580 fprintf(fp,"-------------------- Dump EncodeForm --------------------\n"); | |
| 1581 for (_eclasses.reset(); (name = _eclasses.iter()) != NULL;) { | |
| 1582 ((EncClass*)_encClass[name])->output(fp); | |
| 1583 } | |
| 1584 fprintf(fp,"-------------------- end EncodeForm --------------------\n"); | |
| 1585 } | |
| 1586 //------------------------------EncClass--------------------------------------- | |
| 1587 EncClass::EncClass(const char *name) | |
| 1588 : _localNames(cmpstr,hashstr, Form::arena), _name(name) { | |
| 1589 } | |
| 1590 EncClass::~EncClass() { | |
| 1591 } | |
| 1592 | |
| 1593 // Add a parameter <type,name> pair | |
| 1594 void EncClass::add_parameter(const char *parameter_type, const char *parameter_name) { | |
| 1595 _parameter_type.addName( parameter_type ); | |
| 1596 _parameter_name.addName( parameter_name ); | |
| 1597 } | |
| 1598 | |
| 1599 // Verify operand types in parameter list | |
| 1600 bool EncClass::check_parameter_types(FormDict &globals) { | |
| 1601 // !!!!! | |
| 1602 return false; | |
| 1603 } | |
| 1604 | |
| 1605 // Add the decomposed "code" sections of an encoding's code-block | |
| 1606 void EncClass::add_code(const char *code) { | |
| 1607 _code.addName(code); | |
| 1608 } | |
| 1609 | |
| 1610 // Add the decomposed "replacement variables" of an encoding's code-block | |
| 1611 void EncClass::add_rep_var(char *replacement_var) { | |
| 1612 _code.addName(NameList::_signal); | |
| 1613 _rep_vars.addName(replacement_var); | |
| 1614 } | |
| 1615 | |
| 1616 // Lookup the function body for an encoding class | |
| 1617 int EncClass::rep_var_index(const char *rep_var) { | |
| 1618 uint position = 0; | |
| 1619 const char *name = NULL; | |
| 1620 | |
| 1621 _parameter_name.reset(); | |
| 1622 while ( (name = _parameter_name.iter()) != NULL ) { | |
| 1623 if ( strcmp(rep_var,name) == 0 ) return position; | |
| 1624 ++position; | |
| 1625 } | |
| 1626 | |
| 1627 return -1; | |
| 1628 } | |
| 1629 | |
| 1630 // Check after parsing | |
| 1631 bool EncClass::verify() { | |
| 1632 // 1!!!! | |
| 1633 // Check that each replacement variable, '$name' in architecture description | |
| 1634 // is actually a local variable for this encode class, or a reserved name | |
| 1635 // "primary, secondary, tertiary" | |
| 1636 return true; | |
| 1637 } | |
| 1638 | |
| 1639 void EncClass::dump() { | |
| 1640 output(stderr); | |
| 1641 } | |
| 1642 | |
| 1643 // Write info to output files | |
| 1644 void EncClass::output(FILE *fp) { | |
| 1645 fprintf(fp,"EncClass: %s", (_name ? _name : "")); | |
| 1646 | |
| 1647 // Output the parameter list | |
| 1648 _parameter_type.reset(); | |
| 1649 _parameter_name.reset(); | |
| 1650 const char *type = _parameter_type.iter(); | |
| 1651 const char *name = _parameter_name.iter(); | |
| 1652 fprintf(fp, " ( "); | |
| 1653 for ( ; (type != NULL) && (name != NULL); | |
| 1654 (type = _parameter_type.iter()), (name = _parameter_name.iter()) ) { | |
| 1655 fprintf(fp, " %s %s,", type, name); | |
| 1656 } | |
| 1657 fprintf(fp, " ) "); | |
| 1658 | |
| 1659 // Output the code block | |
| 1660 _code.reset(); | |
| 1661 _rep_vars.reset(); | |
| 1662 const char *code; | |
| 1663 while ( (code = _code.iter()) != NULL ) { | |
| 1664 if ( _code.is_signal(code) ) { | |
| 1665 // A replacement variable | |
| 1666 const char *rep_var = _rep_vars.iter(); | |
| 1667 fprintf(fp,"($%s)", rep_var); | |
| 1668 } else { | |
| 1669 // A section of code | |
| 1670 fprintf(fp,"%s", code); | |
| 1671 } | |
| 1672 } | |
| 1673 | |
| 1674 } | |
| 1675 | |
| 1676 //------------------------------Opcode----------------------------------------- | |
| 1677 Opcode::Opcode(char *primary, char *secondary, char *tertiary) | |
| 1678 : _primary(primary), _secondary(secondary), _tertiary(tertiary) { | |
| 1679 } | |
| 1680 | |
| 1681 Opcode::~Opcode() { | |
| 1682 } | |
| 1683 | |
| 1684 Opcode::opcode_type Opcode::as_opcode_type(const char *param) { | |
| 1685 if( strcmp(param,"primary") == 0 ) { | |
| 1686 return Opcode::PRIMARY; | |
| 1687 } | |
| 1688 else if( strcmp(param,"secondary") == 0 ) { | |
| 1689 return Opcode::SECONDARY; | |
| 1690 } | |
| 1691 else if( strcmp(param,"tertiary") == 0 ) { | |
| 1692 return Opcode::TERTIARY; | |
| 1693 } | |
| 1694 return Opcode::NOT_AN_OPCODE; | |
| 1695 } | |
| 1696 | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1697 bool Opcode::print_opcode(FILE *fp, Opcode::opcode_type desired_opcode) { |
| 0 | 1698 // Default values previously provided by MachNode::primary()... |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1699 const char *description = NULL; |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1700 const char *value = NULL; |
| 0 | 1701 // Check if user provided any opcode definitions |
| 1702 if( this != NULL ) { | |
| 1703 // Update 'value' if user provided a definition in the instruction | |
| 1704 switch (desired_opcode) { | |
| 1705 case PRIMARY: | |
| 1706 description = "primary()"; | |
| 1707 if( _primary != NULL) { value = _primary; } | |
| 1708 break; | |
| 1709 case SECONDARY: | |
| 1710 description = "secondary()"; | |
| 1711 if( _secondary != NULL ) { value = _secondary; } | |
| 1712 break; | |
| 1713 case TERTIARY: | |
| 1714 description = "tertiary()"; | |
| 1715 if( _tertiary != NULL ) { value = _tertiary; } | |
| 1716 break; | |
| 1717 default: | |
| 1718 assert( false, "ShouldNotReachHere();"); | |
| 1719 break; | |
| 1720 } | |
| 1721 } | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1722 if (value != NULL) { |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1723 fprintf(fp, "(%s /*%s*/)", value, description); |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1724 } |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
1725 return value != NULL; |
| 0 | 1726 } |
| 1727 | |
| 1728 void Opcode::dump() { | |
| 1729 output(stderr); | |
| 1730 } | |
| 1731 | |
| 1732 // Write info to output files | |
| 1733 void Opcode::output(FILE *fp) { | |
| 1734 if (_primary != NULL) fprintf(fp,"Primary opcode: %s\n", _primary); | |
| 1735 if (_secondary != NULL) fprintf(fp,"Secondary opcode: %s\n", _secondary); | |
| 1736 if (_tertiary != NULL) fprintf(fp,"Tertiary opcode: %s\n", _tertiary); | |
| 1737 } | |
| 1738 | |
| 1739 //------------------------------InsEncode-------------------------------------- | |
| 1740 InsEncode::InsEncode() { | |
| 1741 } | |
| 1742 InsEncode::~InsEncode() { | |
| 1743 } | |
| 1744 | |
| 1745 // Add "encode class name" and its parameters | |
| 1746 NameAndList *InsEncode::add_encode(char *encoding) { | |
| 1747 assert( encoding != NULL, "Must provide name for encoding"); | |
| 1748 | |
| 1749 // add_parameter(NameList::_signal); | |
| 1750 NameAndList *encode = new NameAndList(encoding); | |
| 1751 _encoding.addName((char*)encode); | |
| 1752 | |
| 1753 return encode; | |
| 1754 } | |
| 1755 | |
| 1756 // Access the list of encodings | |
| 1757 void InsEncode::reset() { | |
| 1758 _encoding.reset(); | |
| 1759 // _parameter.reset(); | |
| 1760 } | |
| 1761 const char* InsEncode::encode_class_iter() { | |
| 1762 NameAndList *encode_class = (NameAndList*)_encoding.iter(); | |
| 1763 return ( encode_class != NULL ? encode_class->name() : NULL ); | |
| 1764 } | |
| 1765 // Obtain parameter name from zero based index | |
| 1766 const char *InsEncode::rep_var_name(InstructForm &inst, uint param_no) { | |
| 1767 NameAndList *params = (NameAndList*)_encoding.current(); | |
| 1768 assert( params != NULL, "Internal Error"); | |
| 1769 const char *param = (*params)[param_no]; | |
| 1770 | |
| 1771 // Remove '$' if parser placed it there. | |
| 1772 return ( param != NULL && *param == '$') ? (param+1) : param; | |
| 1773 } | |
| 1774 | |
| 1775 void InsEncode::dump() { | |
| 1776 output(stderr); | |
| 1777 } | |
| 1778 | |
| 1779 // Write info to output files | |
| 1780 void InsEncode::output(FILE *fp) { | |
| 1781 NameAndList *encoding = NULL; | |
| 1782 const char *parameter = NULL; | |
| 1783 | |
| 1784 fprintf(fp,"InsEncode: "); | |
| 1785 _encoding.reset(); | |
| 1786 | |
| 1787 while ( (encoding = (NameAndList*)_encoding.iter()) != 0 ) { | |
| 1788 // Output the encoding being used | |
| 1789 fprintf(fp,"%s(", encoding->name() ); | |
| 1790 | |
| 1791 // Output its parameter list, if any | |
| 1792 bool first_param = true; | |
| 1793 encoding->reset(); | |
| 1794 while ( (parameter = encoding->iter()) != 0 ) { | |
| 1795 // Output the ',' between parameters | |
| 1796 if ( ! first_param ) fprintf(fp,", "); | |
| 1797 first_param = false; | |
| 1798 // Output the parameter | |
| 1799 fprintf(fp,"%s", parameter); | |
| 1800 } // done with parameters | |
| 1801 fprintf(fp,") "); | |
| 1802 } // done with encodings | |
| 1803 | |
| 1804 fprintf(fp,"\n"); | |
| 1805 } | |
| 1806 | |
| 1807 //------------------------------Effect----------------------------------------- | |
| 1808 static int effect_lookup(const char *name) { | |
| 1809 if(!strcmp(name, "USE")) return Component::USE; | |
| 1810 if(!strcmp(name, "DEF")) return Component::DEF; | |
| 1811 if(!strcmp(name, "USE_DEF")) return Component::USE_DEF; | |
| 1812 if(!strcmp(name, "KILL")) return Component::KILL; | |
| 1813 if(!strcmp(name, "USE_KILL")) return Component::USE_KILL; | |
| 1814 if(!strcmp(name, "TEMP")) return Component::TEMP; | |
| 1815 if(!strcmp(name, "INVALID")) return Component::INVALID; | |
|
4120
f03a3c8bd5e5
7077312: Provide a CALL effect for instruct declaration in the ad file
roland
parents:
3965
diff
changeset
|
1816 if(!strcmp(name, "CALL")) return Component::CALL; |
| 0 | 1817 assert( false,"Invalid effect name specified\n"); |
| 1818 return Component::INVALID; | |
| 1819 } | |
| 1820 | |
| 6850 | 1821 const char *Component::getUsedefName() { |
| 1822 switch (_usedef) { | |
| 1823 case Component::INVALID: return "INVALID"; break; | |
| 1824 case Component::USE: return "USE"; break; | |
| 1825 case Component::USE_DEF: return "USE_DEF"; break; | |
| 1826 case Component::USE_KILL: return "USE_KILL"; break; | |
| 1827 case Component::KILL: return "KILL"; break; | |
| 1828 case Component::TEMP: return "TEMP"; break; | |
| 1829 case Component::DEF: return "DEF"; break; | |
| 1830 case Component::CALL: return "CALL"; break; | |
| 1831 default: assert(false, "unknown effect"); | |
| 1832 } | |
| 1833 return "Undefined Use/Def info"; | |
| 1834 } | |
| 1835 | |
| 0 | 1836 Effect::Effect(const char *name) : _name(name), _use_def(effect_lookup(name)) { |
| 1837 _ftype = Form::EFF; | |
| 1838 } | |
| 6850 | 1839 |
| 0 | 1840 Effect::~Effect() { |
| 1841 } | |
| 1842 | |
| 1843 // Dynamic type check | |
| 1844 Effect *Effect::is_effect() const { | |
| 1845 return (Effect*)this; | |
| 1846 } | |
| 1847 | |
| 1848 | |
| 1849 // True if this component is equal to the parameter. | |
| 1850 bool Effect::is(int use_def_kill_enum) const { | |
| 1851 return (_use_def == use_def_kill_enum ? true : false); | |
| 1852 } | |
| 1853 // True if this component is used/def'd/kill'd as the parameter suggests. | |
| 1854 bool Effect::isa(int use_def_kill_enum) const { | |
| 1855 return (_use_def & use_def_kill_enum) == use_def_kill_enum; | |
| 1856 } | |
| 1857 | |
| 1858 void Effect::dump() { | |
| 1859 output(stderr); | |
| 1860 } | |
| 1861 | |
| 1862 void Effect::output(FILE *fp) { // Write info to output files | |
| 1863 fprintf(fp,"Effect: %s\n", (_name?_name:"")); | |
| 1864 } | |
| 1865 | |
| 1866 //------------------------------ExpandRule------------------------------------- | |
| 1867 ExpandRule::ExpandRule() : _expand_instrs(), | |
| 1868 _newopconst(cmpstr, hashstr, Form::arena) { | |
| 1869 _ftype = Form::EXP; | |
| 1870 } | |
| 1871 | |
| 1872 ExpandRule::~ExpandRule() { // Destructor | |
| 1873 } | |
| 1874 | |
| 1875 void ExpandRule::add_instruction(NameAndList *instruction_name_and_operand_list) { | |
| 1876 _expand_instrs.addName((char*)instruction_name_and_operand_list); | |
| 1877 } | |
| 1878 | |
| 1879 void ExpandRule::reset_instructions() { | |
| 1880 _expand_instrs.reset(); | |
| 1881 } | |
| 1882 | |
| 1883 NameAndList* ExpandRule::iter_instructions() { | |
| 1884 return (NameAndList*)_expand_instrs.iter(); | |
| 1885 } | |
| 1886 | |
| 1887 | |
| 1888 void ExpandRule::dump() { | |
| 1889 output(stderr); | |
| 1890 } | |
| 1891 | |
| 1892 void ExpandRule::output(FILE *fp) { // Write info to output files | |
| 1893 NameAndList *expand_instr = NULL; | |
| 1894 const char *opid = NULL; | |
| 1895 | |
| 1896 fprintf(fp,"\nExpand Rule:\n"); | |
| 1897 | |
| 1898 // Iterate over the instructions 'node' expands into | |
| 1899 for(reset_instructions(); (expand_instr = iter_instructions()) != NULL; ) { | |
| 1900 fprintf(fp,"%s(", expand_instr->name()); | |
| 1901 | |
| 1902 // iterate over the operand list | |
| 1903 for( expand_instr->reset(); (opid = expand_instr->iter()) != NULL; ) { | |
| 1904 fprintf(fp,"%s ", opid); | |
| 1905 } | |
| 1906 fprintf(fp,");\n"); | |
| 1907 } | |
| 1908 } | |
| 1909 | |
| 1910 //------------------------------RewriteRule------------------------------------ | |
| 1911 RewriteRule::RewriteRule(char* params, char* block) | |
| 1912 : _tempParams(params), _tempBlock(block) { }; // Constructor | |
| 1913 RewriteRule::~RewriteRule() { // Destructor | |
| 1914 } | |
| 1915 | |
| 1916 void RewriteRule::dump() { | |
| 1917 output(stderr); | |
| 1918 } | |
| 1919 | |
| 1920 void RewriteRule::output(FILE *fp) { // Write info to output files | |
| 1921 fprintf(fp,"\nRewrite Rule:\n%s\n%s\n", | |
| 1922 (_tempParams?_tempParams:""), | |
| 1923 (_tempBlock?_tempBlock:"")); | |
| 1924 } | |
| 1925 | |
| 1926 | |
| 1927 //==============================MachNodes====================================== | |
| 1928 //------------------------------MachNodeForm----------------------------------- | |
| 1929 MachNodeForm::MachNodeForm(char *id) | |
| 1930 : _ident(id) { | |
| 1931 } | |
| 1932 | |
| 1933 MachNodeForm::~MachNodeForm() { | |
| 1934 } | |
| 1935 | |
| 1936 MachNodeForm *MachNodeForm::is_machnode() const { | |
| 1937 return (MachNodeForm*)this; | |
| 1938 } | |
| 1939 | |
| 1940 //==============================Operand Classes================================ | |
| 1941 //------------------------------OpClassForm------------------------------------ | |
| 1942 OpClassForm::OpClassForm(const char* id) : _ident(id) { | |
| 1943 _ftype = Form::OPCLASS; | |
| 1944 } | |
| 1945 | |
| 1946 OpClassForm::~OpClassForm() { | |
| 1947 } | |
| 1948 | |
| 1949 bool OpClassForm::ideal_only() const { return 0; } | |
| 1950 | |
| 1951 OpClassForm *OpClassForm::is_opclass() const { | |
| 1952 return (OpClassForm*)this; | |
| 1953 } | |
| 1954 | |
| 1955 Form::InterfaceType OpClassForm::interface_type(FormDict &globals) const { | |
| 1956 if( _oplst.count() == 0 ) return Form::no_interface; | |
| 1957 | |
| 1958 // Check that my operands have the same interface type | |
| 1959 Form::InterfaceType interface; | |
| 1960 bool first = true; | |
| 1961 NameList &op_list = (NameList &)_oplst; | |
| 1962 op_list.reset(); | |
| 1963 const char *op_name; | |
| 1964 while( (op_name = op_list.iter()) != NULL ) { | |
| 1965 const Form *form = globals[op_name]; | |
| 1966 OperandForm *operand = form->is_operand(); | |
| 1967 assert( operand, "Entry in operand class that is not an operand"); | |
| 1968 if( first ) { | |
| 1969 first = false; | |
| 1970 interface = operand->interface_type(globals); | |
| 1971 } else { | |
| 1972 interface = (interface == operand->interface_type(globals) ? interface : Form::no_interface); | |
| 1973 } | |
| 1974 } | |
| 1975 return interface; | |
| 1976 } | |
| 1977 | |
| 1978 bool OpClassForm::stack_slots_only(FormDict &globals) const { | |
| 1979 if( _oplst.count() == 0 ) return false; // how? | |
| 1980 | |
| 1981 NameList &op_list = (NameList &)_oplst; | |
| 1982 op_list.reset(); | |
| 1983 const char *op_name; | |
| 1984 while( (op_name = op_list.iter()) != NULL ) { | |
| 1985 const Form *form = globals[op_name]; | |
| 1986 OperandForm *operand = form->is_operand(); | |
| 1987 assert( operand, "Entry in operand class that is not an operand"); | |
| 1988 if( !operand->stack_slots_only(globals) ) return false; | |
| 1989 } | |
| 1990 return true; | |
| 1991 } | |
| 1992 | |
| 1993 | |
| 1994 void OpClassForm::dump() { | |
| 1995 output(stderr); | |
| 1996 } | |
| 1997 | |
| 1998 void OpClassForm::output(FILE *fp) { | |
| 1999 const char *name; | |
| 2000 fprintf(fp,"\nOperand Class: %s\n", (_ident?_ident:"")); | |
| 2001 fprintf(fp,"\nCount = %d\n", _oplst.count()); | |
| 2002 for(_oplst.reset(); (name = _oplst.iter()) != NULL;) { | |
| 2003 fprintf(fp,"%s, ",name); | |
| 2004 } | |
| 2005 fprintf(fp,"\n"); | |
| 2006 } | |
| 2007 | |
| 2008 | |
| 2009 //==============================Operands======================================= | |
| 2010 //------------------------------OperandForm------------------------------------ | |
| 2011 OperandForm::OperandForm(const char* id) | |
| 2012 : OpClassForm(id), _ideal_only(false), | |
| 2013 _localNames(cmpstr, hashstr, Form::arena) { | |
| 2014 _ftype = Form::OPER; | |
| 2015 | |
| 2016 _matrule = NULL; | |
| 2017 _interface = NULL; | |
| 2018 _attribs = NULL; | |
| 2019 _predicate = NULL; | |
| 2020 _constraint= NULL; | |
| 2021 _construct = NULL; | |
| 2022 _format = NULL; | |
| 2023 } | |
| 2024 OperandForm::OperandForm(const char* id, bool ideal_only) | |
| 2025 : OpClassForm(id), _ideal_only(ideal_only), | |
| 2026 _localNames(cmpstr, hashstr, Form::arena) { | |
| 2027 _ftype = Form::OPER; | |
| 2028 | |
| 2029 _matrule = NULL; | |
| 2030 _interface = NULL; | |
| 2031 _attribs = NULL; | |
| 2032 _predicate = NULL; | |
| 2033 _constraint= NULL; | |
| 2034 _construct = NULL; | |
| 2035 _format = NULL; | |
| 2036 } | |
| 2037 OperandForm::~OperandForm() { | |
| 2038 } | |
| 2039 | |
| 2040 | |
| 2041 OperandForm *OperandForm::is_operand() const { | |
| 2042 return (OperandForm*)this; | |
| 2043 } | |
| 2044 | |
| 2045 bool OperandForm::ideal_only() const { | |
| 2046 return _ideal_only; | |
| 2047 } | |
| 2048 | |
| 2049 Form::InterfaceType OperandForm::interface_type(FormDict &globals) const { | |
| 2050 if( _interface == NULL ) return Form::no_interface; | |
| 2051 | |
| 2052 return _interface->interface_type(globals); | |
| 2053 } | |
| 2054 | |
| 2055 | |
| 2056 bool OperandForm::stack_slots_only(FormDict &globals) const { | |
| 2057 if( _constraint == NULL ) return false; | |
| 2058 return _constraint->stack_slots_only(); | |
| 2059 } | |
| 2060 | |
| 2061 | |
| 2062 // Access op_cost attribute or return NULL. | |
| 2063 const char* OperandForm::cost() { | |
| 2064 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { | |
| 2065 if( strcmp(cur->_ident,AttributeForm::_op_cost) == 0 ) { | |
| 2066 return cur->_val; | |
| 2067 } | |
| 2068 } | |
| 2069 return NULL; | |
| 2070 } | |
| 2071 | |
| 2072 // Return the number of leaves below this complex operand | |
| 2073 uint OperandForm::num_leaves() const { | |
| 2074 if ( ! _matrule) return 0; | |
| 2075 | |
| 2076 int num_leaves = _matrule->_numleaves; | |
| 2077 return num_leaves; | |
| 2078 } | |
| 2079 | |
| 2080 // Return the number of constants contained within this complex operand | |
| 2081 uint OperandForm::num_consts(FormDict &globals) const { | |
| 2082 if ( ! _matrule) return 0; | |
| 2083 | |
| 2084 // This is a recursive invocation on all operands in the matchrule | |
| 2085 return _matrule->num_consts(globals); | |
| 2086 } | |
| 2087 | |
| 2088 // Return the number of constants in match rule with specified type | |
| 2089 uint OperandForm::num_consts(FormDict &globals, Form::DataType type) const { | |
| 2090 if ( ! _matrule) return 0; | |
| 2091 | |
| 2092 // This is a recursive invocation on all operands in the matchrule | |
| 2093 return _matrule->num_consts(globals, type); | |
| 2094 } | |
| 2095 | |
| 2096 // Return the number of pointer constants contained within this complex operand | |
| 2097 uint OperandForm::num_const_ptrs(FormDict &globals) const { | |
| 2098 if ( ! _matrule) return 0; | |
| 2099 | |
| 2100 // This is a recursive invocation on all operands in the matchrule | |
| 2101 return _matrule->num_const_ptrs(globals); | |
| 2102 } | |
| 2103 | |
| 2104 uint OperandForm::num_edges(FormDict &globals) const { | |
| 2105 uint edges = 0; | |
| 2106 uint leaves = num_leaves(); | |
| 2107 uint consts = num_consts(globals); | |
| 2108 | |
| 2109 // If we are matching a constant directly, there are no leaves. | |
| 2110 edges = ( leaves > consts ) ? leaves - consts : 0; | |
| 2111 | |
| 2112 // !!!!! | |
| 2113 // Special case operands that do not have a corresponding ideal node. | |
| 2114 if( (edges == 0) && (consts == 0) ) { | |
| 2115 if( constrained_reg_class() != NULL ) { | |
| 2116 edges = 1; | |
| 2117 } else { | |
| 2118 if( _matrule | |
| 2119 && (_matrule->_lChild == NULL) && (_matrule->_rChild == NULL) ) { | |
| 2120 const Form *form = globals[_matrule->_opType]; | |
| 2121 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2122 if( oper ) { | |
| 2123 return oper->num_edges(globals); | |
| 2124 } | |
| 2125 } | |
| 2126 } | |
| 2127 } | |
| 2128 | |
| 2129 return edges; | |
| 2130 } | |
| 2131 | |
| 2132 | |
| 2133 // Check if this operand is usable for cisc-spilling | |
| 2134 bool OperandForm::is_cisc_reg(FormDict &globals) const { | |
| 2135 const char *ideal = ideal_type(globals); | |
| 2136 bool is_cisc_reg = (ideal && (ideal_to_Reg_type(ideal) != none)); | |
| 2137 return is_cisc_reg; | |
| 2138 } | |
| 2139 | |
| 2140 bool OpClassForm::is_cisc_mem(FormDict &globals) const { | |
| 2141 Form::InterfaceType my_interface = interface_type(globals); | |
| 2142 return (my_interface == memory_interface); | |
| 2143 } | |
| 2144 | |
| 2145 | |
| 2146 // node matches ideal 'Bool' | |
| 2147 bool OperandForm::is_ideal_bool() const { | |
| 2148 if( _matrule == NULL ) return false; | |
| 2149 | |
| 2150 return _matrule->is_ideal_bool(); | |
| 2151 } | |
| 2152 | |
| 2153 // Require user's name for an sRegX to be stackSlotX | |
| 2154 Form::DataType OperandForm::is_user_name_for_sReg() const { | |
| 2155 DataType data_type = none; | |
| 2156 if( _ident != NULL ) { | |
| 2157 if( strcmp(_ident,"stackSlotI") == 0 ) data_type = Form::idealI; | |
| 2158 else if( strcmp(_ident,"stackSlotP") == 0 ) data_type = Form::idealP; | |
| 2159 else if( strcmp(_ident,"stackSlotD") == 0 ) data_type = Form::idealD; | |
| 2160 else if( strcmp(_ident,"stackSlotF") == 0 ) data_type = Form::idealF; | |
| 2161 else if( strcmp(_ident,"stackSlotL") == 0 ) data_type = Form::idealL; | |
| 2162 } | |
| 2163 assert((data_type == none) || (_matrule == NULL), "No match-rule for stackSlotX"); | |
| 2164 | |
| 2165 return data_type; | |
| 2166 } | |
| 2167 | |
| 2168 | |
| 2169 // Return ideal type, if there is a single ideal type for this operand | |
| 2170 const char *OperandForm::ideal_type(FormDict &globals, RegisterForm *registers) const { | |
| 2171 const char *type = NULL; | |
| 2172 if (ideal_only()) type = _ident; | |
| 2173 else if( _matrule == NULL ) { | |
| 2174 // Check for condition code register | |
| 2175 const char *rc_name = constrained_reg_class(); | |
| 2176 // !!!!! | |
| 2177 if (rc_name == NULL) return NULL; | |
| 2178 // !!!!! !!!!! | |
| 2179 // Check constraints on result's register class | |
| 2180 if( registers ) { | |
| 2181 RegClass *reg_class = registers->getRegClass(rc_name); | |
| 2182 assert( reg_class != NULL, "Register class is not defined"); | |
| 2183 | |
| 2184 // Check for ideal type of entries in register class, all are the same type | |
| 2185 reg_class->reset(); | |
| 2186 RegDef *reg_def = reg_class->RegDef_iter(); | |
| 2187 assert( reg_def != NULL, "No entries in register class"); | |
| 2188 assert( reg_def->_idealtype != NULL, "Did not define ideal type for register"); | |
| 2189 // Return substring that names the register's ideal type | |
| 2190 type = reg_def->_idealtype + 3; | |
| 2191 assert( *(reg_def->_idealtype + 0) == 'O', "Expect Op_ prefix"); | |
| 2192 assert( *(reg_def->_idealtype + 1) == 'p', "Expect Op_ prefix"); | |
| 2193 assert( *(reg_def->_idealtype + 2) == '_', "Expect Op_ prefix"); | |
| 2194 } | |
| 2195 } | |
| 2196 else if( _matrule->_lChild == NULL && _matrule->_rChild == NULL ) { | |
| 2197 // This operand matches a single type, at the top level. | |
| 2198 // Check for ideal type | |
| 2199 type = _matrule->_opType; | |
| 2200 if( strcmp(type,"Bool") == 0 ) | |
| 2201 return "Bool"; | |
| 2202 // transitive lookup | |
| 2203 const Form *frm = globals[type]; | |
| 2204 OperandForm *op = frm->is_operand(); | |
| 2205 type = op->ideal_type(globals, registers); | |
| 2206 } | |
| 2207 return type; | |
| 2208 } | |
| 2209 | |
| 2210 | |
| 2211 // If there is a single ideal type for this interface field, return it. | |
| 2212 const char *OperandForm::interface_ideal_type(FormDict &globals, | |
| 2213 const char *field) const { | |
| 2214 const char *ideal_type = NULL; | |
| 2215 const char *value = NULL; | |
| 2216 | |
| 2217 // Check if "field" is valid for this operand's interface | |
| 2218 if ( ! is_interface_field(field, value) ) return ideal_type; | |
| 2219 | |
| 2220 // !!!!! !!!!! !!!!! | |
| 2221 // If a valid field has a constant value, identify "ConI" or "ConP" or ... | |
| 2222 | |
| 2223 // Else, lookup type of field's replacement variable | |
| 2224 | |
| 2225 return ideal_type; | |
| 2226 } | |
| 2227 | |
| 2228 | |
| 2229 RegClass* OperandForm::get_RegClass() const { | |
| 2230 if (_interface && !_interface->is_RegInterface()) return NULL; | |
| 2231 return globalAD->get_registers()->getRegClass(constrained_reg_class()); | |
| 2232 } | |
| 2233 | |
| 2234 | |
| 2235 bool OperandForm::is_bound_register() const { | |
| 10389 | 2236 RegClass* reg_class = get_RegClass(); |
| 2237 if (reg_class == NULL) { | |
| 2238 return false; | |
| 2239 } | |
| 2240 | |
| 2241 const char* name = ideal_type(globalAD->globalNames()); | |
| 2242 if (name == NULL) { | |
| 2243 return false; | |
| 2244 } | |
| 2245 | |
| 2246 uint size = 0; | |
| 2247 if (strcmp(name, "RegFlags") == 0) size = 1; | |
| 2248 if (strcmp(name, "RegI") == 0) size = 1; | |
| 2249 if (strcmp(name, "RegF") == 0) size = 1; | |
| 2250 if (strcmp(name, "RegD") == 0) size = 2; | |
| 2251 if (strcmp(name, "RegL") == 0) size = 2; | |
| 2252 if (strcmp(name, "RegN") == 0) size = 1; | |
| 2253 if (strcmp(name, "RegP") == 0) size = globalAD->get_preproc_def("_LP64") ? 2 : 1; | |
| 2254 if (size == 0) { | |
| 2255 return false; | |
| 2256 } | |
| 0 | 2257 return size == reg_class->size(); |
| 2258 } | |
| 2259 | |
| 2260 | |
| 2261 // Check if this is a valid field for this operand, | |
| 2262 // Return 'true' if valid, and set the value to the string the user provided. | |
| 2263 bool OperandForm::is_interface_field(const char *field, | |
| 2264 const char * &value) const { | |
| 2265 return false; | |
| 2266 } | |
| 2267 | |
| 2268 | |
| 2269 // Return register class name if a constraint specifies the register class. | |
| 2270 const char *OperandForm::constrained_reg_class() const { | |
| 2271 const char *reg_class = NULL; | |
| 2272 if ( _constraint ) { | |
| 2273 // !!!!! | |
| 2274 Constraint *constraint = _constraint; | |
| 2275 if ( strcmp(_constraint->_func,"ALLOC_IN_RC") == 0 ) { | |
| 2276 reg_class = _constraint->_arg; | |
| 2277 } | |
| 2278 } | |
| 2279 | |
| 2280 return reg_class; | |
| 2281 } | |
| 2282 | |
| 2283 | |
| 2284 // Return the register class associated with 'leaf'. | |
| 2285 const char *OperandForm::in_reg_class(uint leaf, FormDict &globals) { | |
| 2286 const char *reg_class = NULL; // "RegMask::Empty"; | |
| 2287 | |
| 2288 if((_matrule == NULL) || (_matrule->is_chain_rule(globals))) { | |
| 2289 reg_class = constrained_reg_class(); | |
| 2290 return reg_class; | |
| 2291 } | |
| 2292 const char *result = NULL; | |
| 2293 const char *name = NULL; | |
| 2294 const char *type = NULL; | |
| 2295 // iterate through all base operands | |
| 2296 // until we reach the register that corresponds to "leaf" | |
| 2297 // This function is not looking for an ideal type. It needs the first | |
| 2298 // level user type associated with the leaf. | |
| 2299 for(uint idx = 0;_matrule->base_operand(idx,globals,result,name,type);++idx) { | |
| 2300 const Form *form = (_localNames[name] ? _localNames[name] : globals[result]); | |
| 2301 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2302 if( oper ) { | |
| 2303 reg_class = oper->constrained_reg_class(); | |
| 2304 if( reg_class ) { | |
| 2305 reg_class = reg_class; | |
| 2306 } else { | |
| 2307 // ShouldNotReachHere(); | |
| 2308 } | |
| 2309 } else { | |
| 2310 // ShouldNotReachHere(); | |
| 2311 } | |
| 2312 | |
| 2313 // Increment our target leaf position if current leaf is not a candidate. | |
| 2314 if( reg_class == NULL) ++leaf; | |
| 2315 // Exit the loop with the value of reg_class when at the correct index | |
| 2316 if( idx == leaf ) break; | |
| 2317 // May iterate through all base operands if reg_class for 'leaf' is NULL | |
| 2318 } | |
| 2319 return reg_class; | |
| 2320 } | |
| 2321 | |
| 2322 | |
| 2323 // Recursive call to construct list of top-level operands. | |
| 2324 // Implementation does not modify state of internal structures | |
| 2325 void OperandForm::build_components() { | |
| 2326 if (_matrule) _matrule->append_components(_localNames, _components); | |
| 2327 | |
| 2328 // Add parameters that "do not appear in match rule". | |
| 2329 const char *name; | |
| 2330 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { | |
| 2331 OperandForm *opForm = (OperandForm*)_localNames[name]; | |
| 2332 | |
| 2333 if ( _components.operand_position(name) == -1 ) { | |
| 2334 _components.insert(name, opForm->_ident, Component::INVALID, false); | |
| 2335 } | |
| 2336 } | |
| 2337 | |
| 2338 return; | |
| 2339 } | |
| 2340 | |
| 2341 int OperandForm::operand_position(const char *name, int usedef) { | |
| 6850 | 2342 return _components.operand_position(name, usedef, this); |
| 0 | 2343 } |
| 2344 | |
| 2345 | |
| 2346 // Return zero-based position in component list, only counting constants; | |
| 2347 // Return -1 if not in list. | |
| 2348 int OperandForm::constant_position(FormDict &globals, const Component *last) { | |
| 605 | 2349 // Iterate through components and count constants preceding 'constant' |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
2350 int position = 0; |
| 0 | 2351 Component *comp; |
| 2352 _components.reset(); | |
| 2353 while( (comp = _components.iter()) != NULL && (comp != last) ) { | |
| 2354 // Special case for operands that take a single user-defined operand | |
| 2355 // Skip the initial definition in the component list. | |
| 2356 if( strcmp(comp->_name,this->_ident) == 0 ) continue; | |
| 2357 | |
| 2358 const char *type = comp->_type; | |
| 2359 // Lookup operand form for replacement variable's type | |
| 2360 const Form *form = globals[type]; | |
| 2361 assert( form != NULL, "Component's type not found"); | |
| 2362 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2363 if( oper ) { | |
| 2364 if( oper->_matrule->is_base_constant(globals) != Form::none ) { | |
| 2365 ++position; | |
| 2366 } | |
| 2367 } | |
| 2368 } | |
| 2369 | |
| 2370 // Check for being passed a component that was not in the list | |
| 2371 if( comp != last ) position = -1; | |
| 2372 | |
| 2373 return position; | |
| 2374 } | |
| 2375 // Provide position of constant by "name" | |
| 2376 int OperandForm::constant_position(FormDict &globals, const char *name) { | |
| 2377 const Component *comp = _components.search(name); | |
| 2378 int idx = constant_position( globals, comp ); | |
| 2379 | |
| 2380 return idx; | |
| 2381 } | |
| 2382 | |
| 2383 | |
| 2384 // Return zero-based position in component list, only counting constants; | |
| 2385 // Return -1 if not in list. | |
| 2386 int OperandForm::register_position(FormDict &globals, const char *reg_name) { | |
| 605 | 2387 // Iterate through components and count registers preceding 'last' |
| 0 | 2388 uint position = 0; |
| 2389 Component *comp; | |
| 2390 _components.reset(); | |
| 2391 while( (comp = _components.iter()) != NULL | |
| 2392 && (strcmp(comp->_name,reg_name) != 0) ) { | |
| 2393 // Special case for operands that take a single user-defined operand | |
| 2394 // Skip the initial definition in the component list. | |
| 2395 if( strcmp(comp->_name,this->_ident) == 0 ) continue; | |
| 2396 | |
| 2397 const char *type = comp->_type; | |
| 2398 // Lookup operand form for component's type | |
| 2399 const Form *form = globals[type]; | |
| 2400 assert( form != NULL, "Component's type not found"); | |
| 2401 OperandForm *oper = form ? form->is_operand() : NULL; | |
| 2402 if( oper ) { | |
| 2403 if( oper->_matrule->is_base_register(globals) ) { | |
| 2404 ++position; | |
| 2405 } | |
| 2406 } | |
| 2407 } | |
| 2408 | |
| 2409 return position; | |
| 2410 } | |
| 2411 | |
| 2412 | |
| 2413 const char *OperandForm::reduce_result() const { | |
| 2414 return _ident; | |
| 2415 } | |
| 2416 // Return the name of the operand on the right hand side of the binary match | |
| 2417 // Return NULL if there is no right hand side | |
| 2418 const char *OperandForm::reduce_right(FormDict &globals) const { | |
| 2419 return ( _matrule ? _matrule->reduce_right(globals) : NULL ); | |
| 2420 } | |
| 2421 | |
| 2422 // Similar for left | |
| 2423 const char *OperandForm::reduce_left(FormDict &globals) const { | |
| 2424 return ( _matrule ? _matrule->reduce_left(globals) : NULL ); | |
| 2425 } | |
| 2426 | |
| 2427 | |
| 2428 // --------------------------- FILE *output_routines | |
| 2429 // | |
| 2430 // Output code for disp_is_oop, if true. | |
| 2431 void OperandForm::disp_is_oop(FILE *fp, FormDict &globals) { | |
| 2432 // Check it is a memory interface with a non-user-constant disp field | |
| 2433 if ( this->_interface == NULL ) return; | |
| 2434 MemInterface *mem_interface = this->_interface->is_MemInterface(); | |
| 2435 if ( mem_interface == NULL ) return; | |
| 2436 const char *disp = mem_interface->_disp; | |
| 2437 if ( *disp != '$' ) return; | |
| 2438 | |
| 2439 // Lookup replacement variable in operand's component list | |
| 2440 const char *rep_var = disp + 1; | |
| 2441 const Component *comp = this->_components.search(rep_var); | |
| 2442 assert( comp != NULL, "Replacement variable not found in components"); | |
| 2443 // Lookup operand form for replacement variable's type | |
| 2444 const char *type = comp->_type; | |
| 2445 Form *form = (Form*)globals[type]; | |
| 2446 assert( form != NULL, "Replacement variable's type not found"); | |
| 2447 OperandForm *op = form->is_operand(); | |
| 2448 assert( op, "Memory Interface 'disp' can only emit an operand form"); | |
| 2449 // Check if this is a ConP, which may require relocation | |
| 2450 if ( op->is_base_constant(globals) == Form::idealP ) { | |
| 2451 // Find the constant's index: _c0, _c1, _c2, ... , _cN | |
| 2452 uint idx = op->constant_position( globals, rep_var); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6179
diff
changeset
|
2453 fprintf(fp," virtual relocInfo::relocType disp_reloc() const {"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6179
diff
changeset
|
2454 fprintf(fp, " return _c%d->reloc();", idx); |
| 0 | 2455 fprintf(fp, " }\n"); |
| 2456 } | |
| 2457 } | |
| 2458 | |
| 2459 // Generate code for internal and external format methods | |
| 2460 // | |
| 2461 // internal access to reg# node->_idx | |
| 2462 // access to subsumed constant _c0, _c1, | |
| 2463 void OperandForm::int_format(FILE *fp, FormDict &globals, uint index) { | |
| 2464 Form::DataType dtype; | |
| 2465 if (_matrule && (_matrule->is_base_register(globals) || | |
| 2466 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { | |
| 2467 // !!!!! !!!!! | |
| 6850 | 2468 fprintf(fp," { char reg_str[128];\n"); |
| 2469 fprintf(fp," ra->dump_register(node,reg_str);\n"); | |
| 2470 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2471 fprintf(fp," }\n"); | |
| 0 | 2472 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
| 2473 format_constant( fp, index, dtype ); | |
| 2474 } else if (ideal_to_sReg_type(_ident) != Form::none) { | |
| 2475 // Special format for Stack Slot Register | |
| 6850 | 2476 fprintf(fp," { char reg_str[128];\n"); |
| 2477 fprintf(fp," ra->dump_register(node,reg_str);\n"); | |
| 2478 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2479 fprintf(fp," }\n"); | |
| 0 | 2480 } else { |
| 6850 | 2481 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
| 0 | 2482 fflush(fp); |
| 2483 fprintf(stderr,"No format defined for %s\n", _ident); | |
| 2484 dump(); | |
| 2485 assert( false,"Internal error:\n output_internal_operand() attempting to output other than a Register or Constant"); | |
| 2486 } | |
| 2487 } | |
| 2488 | |
| 2489 // Similar to "int_format" but for cases where data is external to operand | |
| 2490 // external access to reg# node->in(idx)->_idx, | |
| 2491 void OperandForm::ext_format(FILE *fp, FormDict &globals, uint index) { | |
| 2492 Form::DataType dtype; | |
| 2493 if (_matrule && (_matrule->is_base_register(globals) || | |
| 2494 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { | |
| 6850 | 2495 fprintf(fp," { char reg_str[128];\n"); |
| 2496 fprintf(fp," ra->dump_register(node->in(idx"); | |
| 2497 if ( index != 0 ) fprintf(fp, "+%d",index); | |
| 2498 fprintf(fp, "),reg_str);\n"); | |
| 2499 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); | |
| 2500 fprintf(fp," }\n"); | |
| 0 | 2501 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
| 2502 format_constant( fp, index, dtype ); | |
| 2503 } else if (ideal_to_sReg_type(_ident) != Form::none) { | |
| 2504 // Special format for Stack Slot Register | |
| 6850 | 2505 fprintf(fp," { char reg_str[128];\n"); |
| 2506 fprintf(fp," ra->dump_register(node->in(idx"); | |
| 0 | 2507 if ( index != 0 ) fprintf(fp, "+%d",index); |
| 2508 fprintf(fp, "),reg_str);\n"); | |
| 6850 | 2509 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
| 2510 fprintf(fp," }\n"); | |
| 0 | 2511 } else { |
| 6850 | 2512 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
| 0 | 2513 assert( false,"Internal error:\n output_external_operand() attempting to output other than a Register or Constant"); |
| 2514 } | |
| 2515 } | |
| 2516 | |
| 2517 void OperandForm::format_constant(FILE *fp, uint const_index, uint const_type) { | |
| 2518 switch(const_type) { | |
| 6850 | 2519 case Form::idealI: fprintf(fp," st->print(\"#%%d\", _c%d);\n", const_index); break; |
| 2520 case Form::idealP: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; | |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
2521 case Form::idealNKlass: |
| 6850 | 2522 case Form::idealN: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; |
| 2523 case Form::idealL: fprintf(fp," st->print(\"#%%lld\", _c%d);\n", const_index); break; | |
| 2524 case Form::idealF: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; | |
| 2525 case Form::idealD: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; | |
| 0 | 2526 default: |
| 2527 assert( false, "ShouldNotReachHere()"); | |
| 2528 } | |
| 2529 } | |
| 2530 | |
| 2531 // Return the operand form corresponding to the given index, else NULL. | |
| 2532 OperandForm *OperandForm::constant_operand(FormDict &globals, | |
| 2533 uint index) { | |
| 2534 // !!!!! | |
| 2535 // Check behavior on complex operands | |
| 2536 uint n_consts = num_consts(globals); | |
| 2537 if( n_consts > 0 ) { | |
| 2538 uint i = 0; | |
| 2539 const char *type; | |
| 2540 Component *comp; | |
| 2541 _components.reset(); | |
| 2542 if ((comp = _components.iter()) == NULL) { | |
| 2543 assert(n_consts == 1, "Bad component list detected.\n"); | |
| 2544 // Current operand is THE operand | |
| 2545 if ( index == 0 ) { | |
| 2546 return this; | |
| 2547 } | |
| 2548 } // end if NULL | |
| 2549 else { | |
| 2550 // Skip the first component, it can not be a DEF of a constant | |
| 2551 do { | |
| 2552 type = comp->base_type(globals); | |
| 2553 // Check that "type" is a 'ConI', 'ConP', ... | |
| 2554 if ( ideal_to_const_type(type) != Form::none ) { | |
| 2555 // When at correct component, get corresponding Operand | |
| 2556 if ( index == 0 ) { | |
| 2557 return globals[comp->_type]->is_operand(); | |
| 2558 } | |
| 2559 // Decrement number of constants to go | |
| 2560 --index; | |
| 2561 } | |
| 2562 } while((comp = _components.iter()) != NULL); | |
| 2563 } | |
| 2564 } | |
| 2565 | |
| 2566 // Did not find a constant for this index. | |
| 2567 return NULL; | |
| 2568 } | |
| 2569 | |
| 2570 // If this operand has a single ideal type, return its type | |
| 2571 Form::DataType OperandForm::simple_type(FormDict &globals) const { | |
| 2572 const char *type_name = ideal_type(globals); | |
| 2573 Form::DataType type = type_name ? ideal_to_const_type( type_name ) | |
| 2574 : Form::none; | |
| 2575 return type; | |
| 2576 } | |
| 2577 | |
| 2578 Form::DataType OperandForm::is_base_constant(FormDict &globals) const { | |
| 2579 if ( _matrule == NULL ) return Form::none; | |
| 2580 | |
| 2581 return _matrule->is_base_constant(globals); | |
| 2582 } | |
| 2583 | |
| 2584 // "true" if this operand is a simple type that is swallowed | |
| 2585 bool OperandForm::swallowed(FormDict &globals) const { | |
| 2586 Form::DataType type = simple_type(globals); | |
| 2587 if( type != Form::none ) { | |
| 2588 return true; | |
| 2589 } | |
| 2590 | |
| 2591 return false; | |
| 2592 } | |
| 2593 | |
| 2594 // Output code to access the value of the index'th constant | |
| 2595 void OperandForm::access_constant(FILE *fp, FormDict &globals, | |
| 2596 uint const_index) { | |
| 2597 OperandForm *oper = constant_operand(globals, const_index); | |
| 2598 assert( oper, "Index exceeds number of constants in operand"); | |
| 2599 Form::DataType dtype = oper->is_base_constant(globals); | |
| 2600 | |
| 2601 switch(dtype) { | |
| 2602 case idealI: fprintf(fp,"_c%d", const_index); break; | |
| 2603 case idealP: fprintf(fp,"_c%d->get_con()",const_index); break; | |
| 2604 case idealL: fprintf(fp,"_c%d", const_index); break; | |
| 2605 case idealF: fprintf(fp,"_c%d", const_index); break; | |
| 2606 case idealD: fprintf(fp,"_c%d", const_index); break; | |
| 2607 default: | |
| 2608 assert( false, "ShouldNotReachHere()"); | |
| 2609 } | |
| 2610 } | |
| 2611 | |
| 2612 | |
| 2613 void OperandForm::dump() { | |
| 2614 output(stderr); | |
| 2615 } | |
| 2616 | |
| 2617 void OperandForm::output(FILE *fp) { | |
| 2618 fprintf(fp,"\nOperand: %s\n", (_ident?_ident:"")); | |
| 2619 if (_matrule) _matrule->dump(); | |
| 2620 if (_interface) _interface->dump(); | |
| 2621 if (_attribs) _attribs->dump(); | |
| 2622 if (_predicate) _predicate->dump(); | |
| 2623 if (_constraint) _constraint->dump(); | |
| 2624 if (_construct) _construct->dump(); | |
| 2625 if (_format) _format->dump(); | |
| 2626 } | |
| 2627 | |
| 2628 //------------------------------Constraint------------------------------------- | |
| 2629 Constraint::Constraint(const char *func, const char *arg) | |
| 2630 : _func(func), _arg(arg) { | |
| 2631 } | |
| 2632 Constraint::~Constraint() { /* not owner of char* */ | |
| 2633 } | |
| 2634 | |
| 2635 bool Constraint::stack_slots_only() const { | |
| 2636 return strcmp(_func, "ALLOC_IN_RC") == 0 | |
| 2637 && strcmp(_arg, "stack_slots") == 0; | |
| 2638 } | |
| 2639 | |
| 2640 void Constraint::dump() { | |
| 2641 output(stderr); | |
| 2642 } | |
| 2643 | |
| 2644 void Constraint::output(FILE *fp) { // Write info to output files | |
| 2645 assert((_func != NULL && _arg != NULL),"missing constraint function or arg"); | |
| 2646 fprintf(fp,"Constraint: %s ( %s )\n", _func, _arg); | |
| 2647 } | |
| 2648 | |
| 2649 //------------------------------Predicate-------------------------------------- | |
| 2650 Predicate::Predicate(char *pr) | |
| 2651 : _pred(pr) { | |
| 2652 } | |
| 2653 Predicate::~Predicate() { | |
| 2654 } | |
| 2655 | |
| 2656 void Predicate::dump() { | |
| 2657 output(stderr); | |
| 2658 } | |
| 2659 | |
| 2660 void Predicate::output(FILE *fp) { | |
| 2661 fprintf(fp,"Predicate"); // Write to output files | |
| 2662 } | |
| 2663 //------------------------------Interface-------------------------------------- | |
| 2664 Interface::Interface(const char *name) : _name(name) { | |
| 2665 } | |
| 2666 Interface::~Interface() { | |
| 2667 } | |
| 2668 | |
| 2669 Form::InterfaceType Interface::interface_type(FormDict &globals) const { | |
| 2670 Interface *thsi = (Interface*)this; | |
| 2671 if ( thsi->is_RegInterface() ) return Form::register_interface; | |
| 2672 if ( thsi->is_MemInterface() ) return Form::memory_interface; | |
| 2673 if ( thsi->is_ConstInterface() ) return Form::constant_interface; | |
| 2674 if ( thsi->is_CondInterface() ) return Form::conditional_interface; | |
| 2675 | |
| 2676 return Form::no_interface; | |
| 2677 } | |
| 2678 | |
| 2679 RegInterface *Interface::is_RegInterface() { | |
| 2680 if ( strcmp(_name,"REG_INTER") != 0 ) | |
| 2681 return NULL; | |
| 2682 return (RegInterface*)this; | |
| 2683 } | |
| 2684 MemInterface *Interface::is_MemInterface() { | |
| 2685 if ( strcmp(_name,"MEMORY_INTER") != 0 ) return NULL; | |
| 2686 return (MemInterface*)this; | |
| 2687 } | |
| 2688 ConstInterface *Interface::is_ConstInterface() { | |
| 2689 if ( strcmp(_name,"CONST_INTER") != 0 ) return NULL; | |
| 2690 return (ConstInterface*)this; | |
| 2691 } | |
| 2692 CondInterface *Interface::is_CondInterface() { | |
| 2693 if ( strcmp(_name,"COND_INTER") != 0 ) return NULL; | |
| 2694 return (CondInterface*)this; | |
| 2695 } | |
| 2696 | |
| 2697 | |
| 2698 void Interface::dump() { | |
| 2699 output(stderr); | |
| 2700 } | |
| 2701 | |
| 2702 // Write info to output files | |
| 2703 void Interface::output(FILE *fp) { | |
| 2704 fprintf(fp,"Interface: %s\n", (_name ? _name : "") ); | |
| 2705 } | |
| 2706 | |
| 2707 //------------------------------RegInterface----------------------------------- | |
| 2708 RegInterface::RegInterface() : Interface("REG_INTER") { | |
| 2709 } | |
| 2710 RegInterface::~RegInterface() { | |
| 2711 } | |
| 2712 | |
| 2713 void RegInterface::dump() { | |
| 2714 output(stderr); | |
| 2715 } | |
| 2716 | |
| 2717 // Write info to output files | |
| 2718 void RegInterface::output(FILE *fp) { | |
| 2719 Interface::output(fp); | |
| 2720 } | |
| 2721 | |
| 2722 //------------------------------ConstInterface--------------------------------- | |
| 2723 ConstInterface::ConstInterface() : Interface("CONST_INTER") { | |
| 2724 } | |
| 2725 ConstInterface::~ConstInterface() { | |
| 2726 } | |
| 2727 | |
| 2728 void ConstInterface::dump() { | |
| 2729 output(stderr); | |
| 2730 } | |
| 2731 | |
| 2732 // Write info to output files | |
| 2733 void ConstInterface::output(FILE *fp) { | |
| 2734 Interface::output(fp); | |
| 2735 } | |
| 2736 | |
| 2737 //------------------------------MemInterface----------------------------------- | |
| 2738 MemInterface::MemInterface(char *base, char *index, char *scale, char *disp) | |
| 2739 : Interface("MEMORY_INTER"), _base(base), _index(index), _scale(scale), _disp(disp) { | |
| 2740 } | |
| 2741 MemInterface::~MemInterface() { | |
| 2742 // not owner of any character arrays | |
| 2743 } | |
| 2744 | |
| 2745 void MemInterface::dump() { | |
| 2746 output(stderr); | |
| 2747 } | |
| 2748 | |
| 2749 // Write info to output files | |
| 2750 void MemInterface::output(FILE *fp) { | |
| 2751 Interface::output(fp); | |
| 2752 if ( _base != NULL ) fprintf(fp," base == %s\n", _base); | |
| 2753 if ( _index != NULL ) fprintf(fp," index == %s\n", _index); | |
| 2754 if ( _scale != NULL ) fprintf(fp," scale == %s\n", _scale); | |
| 2755 if ( _disp != NULL ) fprintf(fp," disp == %s\n", _disp); | |
| 2756 // fprintf(fp,"\n"); | |
| 2757 } | |
| 2758 | |
| 2759 //------------------------------CondInterface---------------------------------- | |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2760 CondInterface::CondInterface(const char* equal, const char* equal_format, |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2761 const char* not_equal, const char* not_equal_format, |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2762 const char* less, const char* less_format, |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2763 const char* greater_equal, const char* greater_equal_format, |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2764 const char* less_equal, const char* less_equal_format, |
| 12323 | 2765 const char* greater, const char* greater_format, |
| 2766 const char* overflow, const char* overflow_format, | |
| 2767 const char* no_overflow, const char* no_overflow_format) | |
| 0 | 2768 : Interface("COND_INTER"), |
|
415
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2769 _equal(equal), _equal_format(equal_format), |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2770 _not_equal(not_equal), _not_equal_format(not_equal_format), |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2771 _less(less), _less_format(less_format), |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2772 _greater_equal(greater_equal), _greater_equal_format(greater_equal_format), |
|
4d9884b01ba6
6754519: don't emit flag fixup for NaN when condition being tested doesn't need it
never
parents:
356
diff
changeset
|
2773 _less_equal(less_equal), _less_equal_format(less_equal_format), |
| 12323 | 2774 _greater(greater), _greater_format(greater_format), |
| 2775 _overflow(overflow), _overflow_format(overflow_format), | |
| 2776 _no_overflow(no_overflow), _no_overflow_format(no_overflow_format) { | |
| 0 | 2777 } |
| 2778 CondInterface::~CondInterface() { | |
| 2779 // not owner of any character arrays | |
| 2780 } | |
| 2781 | |
| 2782 void CondInterface::dump() { | |
| 2783 output(stderr); | |
| 2784 } | |
| 2785 | |
| 2786 // Write info to output files | |
| 2787 void CondInterface::output(FILE *fp) { | |
| 2788 Interface::output(fp); | |
| 12323 | 2789 if ( _equal != NULL ) fprintf(fp," equal == %s\n", _equal); |
| 2790 if ( _not_equal != NULL ) fprintf(fp," not_equal == %s\n", _not_equal); | |
| 2791 if ( _less != NULL ) fprintf(fp," less == %s\n", _less); | |
| 2792 if ( _greater_equal != NULL ) fprintf(fp," greater_equal == %s\n", _greater_equal); | |
| 2793 if ( _less_equal != NULL ) fprintf(fp," less_equal == %s\n", _less_equal); | |
| 2794 if ( _greater != NULL ) fprintf(fp," greater == %s\n", _greater); | |
| 2795 if ( _overflow != NULL ) fprintf(fp," overflow == %s\n", _overflow); | |
| 2796 if ( _no_overflow != NULL ) fprintf(fp," no_overflow == %s\n", _no_overflow); | |
| 0 | 2797 // fprintf(fp,"\n"); |
| 2798 } | |
| 2799 | |
| 2800 //------------------------------ConstructRule---------------------------------- | |
| 2801 ConstructRule::ConstructRule(char *cnstr) | |
| 2802 : _construct(cnstr) { | |
| 2803 } | |
| 2804 ConstructRule::~ConstructRule() { | |
| 2805 } | |
| 2806 | |
| 2807 void ConstructRule::dump() { | |
| 2808 output(stderr); | |
| 2809 } | |
| 2810 | |
| 2811 void ConstructRule::output(FILE *fp) { | |
| 2812 fprintf(fp,"\nConstruct Rule\n"); // Write to output files | |
| 2813 } | |
| 2814 | |
| 2815 | |
| 2816 //==============================Shared Forms=================================== | |
| 2817 //------------------------------AttributeForm---------------------------------- | |
| 2818 int AttributeForm::_insId = 0; // start counter at 0 | |
| 2819 int AttributeForm::_opId = 0; // start counter at 0 | |
| 2820 const char* AttributeForm::_ins_cost = "ins_cost"; // required name | |
| 2821 const char* AttributeForm::_op_cost = "op_cost"; // required name | |
| 2822 | |
| 2823 AttributeForm::AttributeForm(char *attr, int type, char *attrdef) | |
| 2824 : Form(Form::ATTR), _attrname(attr), _atype(type), _attrdef(attrdef) { | |
| 2825 if (type==OP_ATTR) { | |
| 2826 id = ++_opId; | |
| 2827 } | |
| 2828 else if (type==INS_ATTR) { | |
| 2829 id = ++_insId; | |
| 2830 } | |
| 2831 else assert( false,""); | |
| 2832 } | |
| 2833 AttributeForm::~AttributeForm() { | |
| 2834 } | |
| 2835 | |
| 2836 // Dynamic type check | |
| 2837 AttributeForm *AttributeForm::is_attribute() const { | |
| 2838 return (AttributeForm*)this; | |
| 2839 } | |
| 2840 | |
| 2841 | |
| 2842 // inlined // int AttributeForm::type() { return id;} | |
| 2843 | |
| 2844 void AttributeForm::dump() { | |
| 2845 output(stderr); | |
| 2846 } | |
| 2847 | |
| 2848 void AttributeForm::output(FILE *fp) { | |
| 2849 if( _attrname && _attrdef ) { | |
| 2850 fprintf(fp,"\n// AttributeForm \nstatic const int %s = %s;\n", | |
| 2851 _attrname, _attrdef); | |
| 2852 } | |
| 2853 else { | |
| 2854 fprintf(fp,"\n// AttributeForm missing name %s or definition %s\n", | |
| 2855 (_attrname?_attrname:""), (_attrdef?_attrdef:"") ); | |
| 2856 } | |
| 2857 } | |
| 2858 | |
| 2859 //------------------------------Component-------------------------------------- | |
| 2860 Component::Component(const char *name, const char *type, int usedef) | |
| 2861 : _name(name), _type(type), _usedef(usedef) { | |
| 2862 _ftype = Form::COMP; | |
| 2863 } | |
| 2864 Component::~Component() { | |
| 2865 } | |
| 2866 | |
| 2867 // True if this component is equal to the parameter. | |
| 2868 bool Component::is(int use_def_kill_enum) const { | |
| 2869 return (_usedef == use_def_kill_enum ? true : false); | |
| 2870 } | |
| 2871 // True if this component is used/def'd/kill'd as the parameter suggests. | |
| 2872 bool Component::isa(int use_def_kill_enum) const { | |
| 2873 return (_usedef & use_def_kill_enum) == use_def_kill_enum; | |
| 2874 } | |
| 2875 | |
| 2876 // Extend this component with additional use/def/kill behavior | |
| 2877 int Component::promote_use_def_info(int new_use_def) { | |
| 2878 _usedef |= new_use_def; | |
| 2879 | |
| 2880 return _usedef; | |
| 2881 } | |
| 2882 | |
| 2883 // Check the base type of this component, if it has one | |
| 2884 const char *Component::base_type(FormDict &globals) { | |
| 2885 const Form *frm = globals[_type]; | |
| 2886 if (frm == NULL) return NULL; | |
| 2887 OperandForm *op = frm->is_operand(); | |
| 2888 if (op == NULL) return NULL; | |
| 2889 if (op->ideal_only()) return op->_ident; | |
| 2890 return (char *)op->ideal_type(globals); | |
| 2891 } | |
| 2892 | |
| 2893 void Component::dump() { | |
| 2894 output(stderr); | |
| 2895 } | |
| 2896 | |
| 2897 void Component::output(FILE *fp) { | |
| 2898 fprintf(fp,"Component:"); // Write to output files | |
| 2899 fprintf(fp, " name = %s", _name); | |
| 2900 fprintf(fp, ", type = %s", _type); | |
| 6850 | 2901 assert(_usedef != 0, "unknown effect"); |
| 2902 fprintf(fp, ", use/def = %s\n", getUsedefName()); | |
| 0 | 2903 } |
| 2904 | |
| 2905 | |
| 2906 //------------------------------ComponentList--------------------------------- | |
| 2907 ComponentList::ComponentList() : NameList(), _matchcnt(0) { | |
| 2908 } | |
| 2909 ComponentList::~ComponentList() { | |
| 2910 // // This list may not own its elements if copied via assignment | |
| 2911 // Component *component; | |
| 2912 // for (reset(); (component = iter()) != NULL;) { | |
| 2913 // delete component; | |
| 2914 // } | |
| 2915 } | |
| 2916 | |
| 2917 void ComponentList::insert(Component *component, bool mflag) { | |
| 2918 NameList::addName((char *)component); | |
| 2919 if(mflag) _matchcnt++; | |
| 2920 } | |
| 2921 void ComponentList::insert(const char *name, const char *opType, int usedef, | |
| 2922 bool mflag) { | |
| 2923 Component * component = new Component(name, opType, usedef); | |
| 2924 insert(component, mflag); | |
| 2925 } | |
| 2926 Component *ComponentList::current() { return (Component*)NameList::current(); } | |
| 2927 Component *ComponentList::iter() { return (Component*)NameList::iter(); } | |
| 2928 Component *ComponentList::match_iter() { | |
| 2929 if(_iter < _matchcnt) return (Component*)NameList::iter(); | |
| 2930 return NULL; | |
| 2931 } | |
| 2932 Component *ComponentList::post_match_iter() { | |
| 2933 Component *comp = iter(); | |
| 2934 // At end of list? | |
| 2935 if ( comp == NULL ) { | |
| 2936 return comp; | |
| 2937 } | |
| 2938 // In post-match components? | |
| 2939 if (_iter > match_count()-1) { | |
| 2940 return comp; | |
| 2941 } | |
| 2942 | |
| 2943 return post_match_iter(); | |
| 2944 } | |
| 2945 | |
| 2946 void ComponentList::reset() { NameList::reset(); } | |
| 2947 int ComponentList::count() { return NameList::count(); } | |
| 2948 | |
| 2949 Component *ComponentList::operator[](int position) { | |
| 2950 // Shortcut complete iteration if there are not enough entries | |
| 2951 if (position >= count()) return NULL; | |
| 2952 | |
| 2953 int index = 0; | |
| 2954 Component *component = NULL; | |
| 2955 for (reset(); (component = iter()) != NULL;) { | |
| 2956 if (index == position) { | |
| 2957 return component; | |
| 2958 } | |
| 2959 ++index; | |
| 2960 } | |
| 2961 | |
| 2962 return NULL; | |
| 2963 } | |
| 2964 | |
| 2965 const Component *ComponentList::search(const char *name) { | |
| 2966 PreserveIter pi(this); | |
| 2967 reset(); | |
| 2968 for( Component *comp = NULL; ((comp = iter()) != NULL); ) { | |
| 2969 if( strcmp(comp->_name,name) == 0 ) return comp; | |
| 2970 } | |
| 2971 | |
| 2972 return NULL; | |
| 2973 } | |
| 2974 | |
| 2975 // Return number of USEs + number of DEFs | |
| 2976 // When there are no components, or the first component is a USE, | |
| 2977 // then we add '1' to hold a space for the 'result' operand. | |
| 2978 int ComponentList::num_operands() { | |
| 2979 PreserveIter pi(this); | |
| 2980 uint count = 1; // result operand | |
| 2981 uint position = 0; | |
| 2982 | |
| 2983 Component *component = NULL; | |
| 2984 for( reset(); (component = iter()) != NULL; ++position ) { | |
| 2985 if( component->isa(Component::USE) || | |
| 2986 ( position == 0 && (! component->isa(Component::DEF))) ) { | |
| 2987 ++count; | |
| 2988 } | |
| 2989 } | |
| 2990 | |
| 2991 return count; | |
| 2992 } | |
| 2993 | |
| 6850 | 2994 // Return zero-based position of operand 'name' in list; -1 if not in list. |
| 0 | 2995 // if parameter 'usedef' is ::USE, it will match USE, USE_DEF, ... |
| 6850 | 2996 int ComponentList::operand_position(const char *name, int usedef, Form *fm) { |
| 0 | 2997 PreserveIter pi(this); |
| 2998 int position = 0; | |
| 2999 int num_opnds = num_operands(); | |
| 3000 Component *component; | |
| 3001 Component* preceding_non_use = NULL; | |
| 3002 Component* first_def = NULL; | |
| 3003 for (reset(); (component = iter()) != NULL; ++position) { | |
| 3004 // When the first component is not a DEF, | |
| 3005 // leave space for the result operand! | |
| 3006 if ( position==0 && (! component->isa(Component::DEF)) ) { | |
| 3007 ++position; | |
| 3008 ++num_opnds; | |
| 3009 } | |
| 3010 if (strcmp(name, component->_name)==0 && (component->isa(usedef))) { | |
| 3011 // When the first entry in the component list is a DEF and a USE | |
| 3012 // Treat them as being separate, a DEF first, then a USE | |
| 3013 if( position==0 | |
| 3014 && usedef==Component::USE && component->isa(Component::DEF) ) { | |
| 3015 assert(position+1 < num_opnds, "advertised index in bounds"); | |
| 3016 return position+1; | |
| 3017 } else { | |
| 3018 if( preceding_non_use && strcmp(component->_name, preceding_non_use->_name) ) { | |
| 6850 | 3019 fprintf(stderr, "the name '%s(%s)' should not precede the name '%s(%s)'", |
| 3020 preceding_non_use->_name, preceding_non_use->getUsedefName(), | |
| 3021 name, component->getUsedefName()); | |
| 3022 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); | |
| 3023 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); | |
| 3024 fprintf(stderr, "\n"); | |
| 0 | 3025 } |
| 3026 if( position >= num_opnds ) { | |
| 6850 | 3027 fprintf(stderr, "the name '%s' is too late in its name list", name); |
| 3028 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); | |
| 3029 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); | |
| 3030 fprintf(stderr, "\n"); | |
| 0 | 3031 } |
| 3032 assert(position < num_opnds, "advertised index in bounds"); | |
| 3033 return position; | |
| 3034 } | |
| 3035 } | |
| 3036 if( component->isa(Component::DEF) | |
| 3037 && component->isa(Component::USE) ) { | |
| 3038 ++position; | |
| 3039 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3040 } | |
| 3041 if( component->isa(Component::DEF) && !first_def ) { | |
| 3042 first_def = component; | |
| 3043 } | |
| 3044 if( !component->isa(Component::USE) && component != first_def ) { | |
| 3045 preceding_non_use = component; | |
| 3046 } else if( preceding_non_use && !strcmp(component->_name, preceding_non_use->_name) ) { | |
| 3047 preceding_non_use = NULL; | |
| 3048 } | |
| 3049 } | |
| 3050 return Not_in_list; | |
| 3051 } | |
| 3052 | |
| 3053 // Find position for this name, regardless of use/def information | |
| 3054 int ComponentList::operand_position(const char *name) { | |
| 3055 PreserveIter pi(this); | |
| 3056 int position = 0; | |
| 3057 Component *component; | |
| 3058 for (reset(); (component = iter()) != NULL; ++position) { | |
| 3059 // When the first component is not a DEF, | |
| 3060 // leave space for the result operand! | |
| 3061 if ( position==0 && (! component->isa(Component::DEF)) ) { | |
| 3062 ++position; | |
| 3063 } | |
| 3064 if (strcmp(name, component->_name)==0) { | |
| 3065 return position; | |
| 3066 } | |
| 3067 if( component->isa(Component::DEF) | |
| 3068 && component->isa(Component::USE) ) { | |
| 3069 ++position; | |
| 3070 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3071 } | |
| 3072 } | |
| 3073 return Not_in_list; | |
| 3074 } | |
| 3075 | |
| 6850 | 3076 int ComponentList::operand_position_format(const char *name, Form *fm) { |
| 0 | 3077 PreserveIter pi(this); |
| 3078 int first_position = operand_position(name); | |
| 6850 | 3079 int use_position = operand_position(name, Component::USE, fm); |
| 0 | 3080 |
| 3081 return ((first_position < use_position) ? use_position : first_position); | |
| 3082 } | |
| 3083 | |
| 3084 int ComponentList::label_position() { | |
| 3085 PreserveIter pi(this); | |
| 3086 int position = 0; | |
| 3087 reset(); | |
| 3088 for( Component *comp; (comp = iter()) != NULL; ++position) { | |
| 3089 // When the first component is not a DEF, | |
| 3090 // leave space for the result operand! | |
| 3091 if ( position==0 && (! comp->isa(Component::DEF)) ) { | |
| 3092 ++position; | |
| 3093 } | |
| 3094 if (strcmp(comp->_type, "label")==0) { | |
| 3095 return position; | |
| 3096 } | |
| 3097 if( comp->isa(Component::DEF) | |
| 3098 && comp->isa(Component::USE) ) { | |
| 3099 ++position; | |
| 3100 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3101 } | |
| 3102 } | |
| 3103 | |
| 3104 return -1; | |
| 3105 } | |
| 3106 | |
| 3107 int ComponentList::method_position() { | |
| 3108 PreserveIter pi(this); | |
| 3109 int position = 0; | |
| 3110 reset(); | |
| 3111 for( Component *comp; (comp = iter()) != NULL; ++position) { | |
| 3112 // When the first component is not a DEF, | |
| 3113 // leave space for the result operand! | |
| 3114 if ( position==0 && (! comp->isa(Component::DEF)) ) { | |
| 3115 ++position; | |
| 3116 } | |
| 3117 if (strcmp(comp->_type, "method")==0) { | |
| 3118 return position; | |
| 3119 } | |
| 3120 if( comp->isa(Component::DEF) | |
| 3121 && comp->isa(Component::USE) ) { | |
| 3122 ++position; | |
| 3123 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF | |
| 3124 } | |
| 3125 } | |
| 3126 | |
| 3127 return -1; | |
| 3128 } | |
| 3129 | |
| 3130 void ComponentList::dump() { output(stderr); } | |
| 3131 | |
| 3132 void ComponentList::output(FILE *fp) { | |
| 3133 PreserveIter pi(this); | |
| 3134 fprintf(fp, "\n"); | |
| 3135 Component *component; | |
| 3136 for (reset(); (component = iter()) != NULL;) { | |
| 3137 component->output(fp); | |
| 3138 } | |
| 3139 fprintf(fp, "\n"); | |
| 3140 } | |
| 3141 | |
| 3142 //------------------------------MatchNode-------------------------------------- | |
| 3143 MatchNode::MatchNode(ArchDesc &ad, const char *result, const char *mexpr, | |
| 3144 const char *opType, MatchNode *lChild, MatchNode *rChild) | |
| 3145 : _AD(ad), _result(result), _name(mexpr), _opType(opType), | |
| 3146 _lChild(lChild), _rChild(rChild), _internalop(0), _numleaves(0), | |
| 3147 _commutative_id(0) { | |
| 3148 _numleaves = (lChild ? lChild->_numleaves : 0) | |
| 3149 + (rChild ? rChild->_numleaves : 0); | |
| 3150 } | |
| 3151 | |
| 3152 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode) | |
| 3153 : _AD(ad), _result(mnode._result), _name(mnode._name), | |
| 3154 _opType(mnode._opType), _lChild(mnode._lChild), _rChild(mnode._rChild), | |
| 3155 _internalop(0), _numleaves(mnode._numleaves), | |
| 3156 _commutative_id(mnode._commutative_id) { | |
| 3157 } | |
| 3158 | |
| 3159 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode, int clone) | |
| 3160 : _AD(ad), _result(mnode._result), _name(mnode._name), | |
| 3161 _opType(mnode._opType), | |
| 3162 _internalop(0), _numleaves(mnode._numleaves), | |
| 3163 _commutative_id(mnode._commutative_id) { | |
| 3164 if (mnode._lChild) { | |
| 3165 _lChild = new MatchNode(ad, *mnode._lChild, clone); | |
| 3166 } else { | |
| 3167 _lChild = NULL; | |
| 3168 } | |
| 3169 if (mnode._rChild) { | |
| 3170 _rChild = new MatchNode(ad, *mnode._rChild, clone); | |
| 3171 } else { | |
| 3172 _rChild = NULL; | |
| 3173 } | |
| 3174 } | |
| 3175 | |
| 3176 MatchNode::~MatchNode() { | |
| 3177 // // This node may not own its children if copied via assignment | |
| 3178 // if( _lChild ) delete _lChild; | |
| 3179 // if( _rChild ) delete _rChild; | |
| 3180 } | |
| 3181 | |
| 3182 bool MatchNode::find_type(const char *type, int &position) const { | |
| 3183 if ( (_lChild != NULL) && (_lChild->find_type(type, position)) ) return true; | |
| 3184 if ( (_rChild != NULL) && (_rChild->find_type(type, position)) ) return true; | |
| 3185 | |
| 3186 if (strcmp(type,_opType)==0) { | |
| 3187 return true; | |
| 3188 } else { | |
| 3189 ++position; | |
| 3190 } | |
| 3191 return false; | |
| 3192 } | |
| 3193 | |
| 3194 // Recursive call collecting info on top-level operands, not transitive. | |
| 3195 // Implementation does not modify state of internal structures. | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3196 void MatchNode::append_components(FormDict& locals, ComponentList& components, |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3197 bool def_flag) const { |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3198 int usedef = def_flag ? Component::DEF : Component::USE; |
| 0 | 3199 FormDict &globals = _AD.globalNames(); |
| 3200 | |
| 3201 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); | |
| 3202 // Base case | |
| 3203 if (_lChild==NULL && _rChild==NULL) { | |
| 3204 // If _opType is not an operation, do not build a component for it ##### | |
| 3205 const Form *f = globals[_opType]; | |
| 3206 if( f != NULL ) { | |
| 3207 // Add non-ideals that are operands, operand-classes, | |
| 3208 if( ! f->ideal_only() | |
| 3209 && (f->is_opclass() || f->is_operand()) ) { | |
| 3210 components.insert(_name, _opType, usedef, true); | |
| 3211 } | |
| 3212 } | |
| 3213 return; | |
| 3214 } | |
| 3215 // Promote results of "Set" to DEF | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3216 bool tmpdef_flag = (!strcmp(_opType, "Set")) ? true : false; |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3217 if (_lChild) _lChild->append_components(locals, components, tmpdef_flag); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3218 tmpdef_flag = false; // only applies to component immediately following 'Set' |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3219 if (_rChild) _rChild->append_components(locals, components, tmpdef_flag); |
| 0 | 3220 } |
| 3221 | |
| 3222 // Find the n'th base-operand in the match node, | |
| 3223 // recursively investigates match rules of user-defined operands. | |
| 3224 // | |
| 3225 // Implementation does not modify state of internal structures since they | |
| 3226 // can be shared. | |
| 3227 bool MatchNode::base_operand(uint &position, FormDict &globals, | |
| 3228 const char * &result, const char * &name, | |
| 3229 const char * &opType) const { | |
| 3230 assert (_name != NULL, "MatchNode::base_operand encountered empty node\n"); | |
| 3231 // Base case | |
| 3232 if (_lChild==NULL && _rChild==NULL) { | |
| 3233 // Check for special case: "Universe", "label" | |
| 3234 if (strcmp(_opType,"Universe") == 0 || strcmp(_opType,"label")==0 ) { | |
| 3235 if (position == 0) { | |
| 3236 result = _result; | |
| 3237 name = _name; | |
| 3238 opType = _opType; | |
| 3239 return 1; | |
| 3240 } else { | |
| 3241 -- position; | |
| 3242 return 0; | |
| 3243 } | |
| 3244 } | |
| 3245 | |
| 3246 const Form *form = globals[_opType]; | |
| 3247 MatchNode *matchNode = NULL; | |
| 3248 // Check for user-defined type | |
| 3249 if (form) { | |
| 3250 // User operand or instruction? | |
| 3251 OperandForm *opForm = form->is_operand(); | |
| 3252 InstructForm *inForm = form->is_instruction(); | |
| 3253 if ( opForm ) { | |
| 3254 matchNode = (MatchNode*)opForm->_matrule; | |
| 3255 } else if ( inForm ) { | |
| 3256 matchNode = (MatchNode*)inForm->_matrule; | |
| 3257 } | |
| 3258 } | |
| 3259 // if this is user-defined, recurse on match rule | |
| 3260 // User-defined operand and instruction forms have a match-rule. | |
| 3261 if (matchNode) { | |
| 3262 return (matchNode->base_operand(position,globals,result,name,opType)); | |
| 3263 } else { | |
| 3264 // Either not a form, or a system-defined form (no match rule). | |
| 3265 if (position==0) { | |
| 3266 result = _result; | |
| 3267 name = _name; | |
| 3268 opType = _opType; | |
| 3269 return 1; | |
| 3270 } else { | |
| 3271 --position; | |
| 3272 return 0; | |
| 3273 } | |
| 3274 } | |
| 3275 | |
| 3276 } else { | |
| 3277 // Examine the left child and right child as well | |
| 3278 if (_lChild) { | |
| 3279 if (_lChild->base_operand(position, globals, result, name, opType)) | |
| 3280 return 1; | |
| 3281 } | |
| 3282 | |
| 3283 if (_rChild) { | |
| 3284 if (_rChild->base_operand(position, globals, result, name, opType)) | |
| 3285 return 1; | |
| 3286 } | |
| 3287 } | |
| 3288 | |
| 3289 return 0; | |
| 3290 } | |
| 3291 | |
| 3292 // Recursive call on all operands' match rules in my match rule. | |
| 3293 uint MatchNode::num_consts(FormDict &globals) const { | |
| 3294 uint index = 0; | |
| 3295 uint num_consts = 0; | |
| 3296 const char *result; | |
| 3297 const char *name; | |
| 3298 const char *opType; | |
| 3299 | |
| 3300 for (uint position = index; | |
| 3301 base_operand(position,globals,result,name,opType); position = index) { | |
| 3302 ++index; | |
| 3303 if( ideal_to_const_type(opType) ) num_consts++; | |
| 3304 } | |
| 3305 | |
| 3306 return num_consts; | |
| 3307 } | |
| 3308 | |
| 3309 // Recursive call on all operands' match rules in my match rule. | |
| 3310 // Constants in match rule subtree with specified type | |
| 3311 uint MatchNode::num_consts(FormDict &globals, Form::DataType type) const { | |
| 3312 uint index = 0; | |
| 3313 uint num_consts = 0; | |
| 3314 const char *result; | |
| 3315 const char *name; | |
| 3316 const char *opType; | |
| 3317 | |
| 3318 for (uint position = index; | |
| 3319 base_operand(position,globals,result,name,opType); position = index) { | |
| 3320 ++index; | |
| 3321 if( ideal_to_const_type(opType) == type ) num_consts++; | |
| 3322 } | |
| 3323 | |
| 3324 return num_consts; | |
| 3325 } | |
| 3326 | |
| 3327 // Recursive call on all operands' match rules in my match rule. | |
| 3328 uint MatchNode::num_const_ptrs(FormDict &globals) const { | |
| 3329 return num_consts( globals, Form::idealP ); | |
| 3330 } | |
| 3331 | |
| 3332 bool MatchNode::sets_result() const { | |
| 3333 return ( (strcmp(_name,"Set") == 0) ? true : false ); | |
| 3334 } | |
| 3335 | |
| 3336 const char *MatchNode::reduce_right(FormDict &globals) const { | |
| 3337 // If there is no right reduction, return NULL. | |
| 3338 const char *rightStr = NULL; | |
| 3339 | |
| 3340 // If we are a "Set", start from the right child. | |
| 3341 const MatchNode *const mnode = sets_result() ? | |
| 6850 | 3342 (const MatchNode *)this->_rChild : |
| 3343 (const MatchNode *)this; | |
| 0 | 3344 |
| 3345 // If our right child exists, it is the right reduction | |
| 3346 if ( mnode->_rChild ) { | |
| 3347 rightStr = mnode->_rChild->_internalop ? mnode->_rChild->_internalop | |
| 3348 : mnode->_rChild->_opType; | |
| 3349 } | |
| 3350 // Else, May be simple chain rule: (Set dst operand_form), rightStr=NULL; | |
| 3351 return rightStr; | |
| 3352 } | |
| 3353 | |
| 3354 const char *MatchNode::reduce_left(FormDict &globals) const { | |
| 3355 // If there is no left reduction, return NULL. | |
| 3356 const char *leftStr = NULL; | |
| 3357 | |
| 3358 // If we are a "Set", start from the right child. | |
| 3359 const MatchNode *const mnode = sets_result() ? | |
| 6850 | 3360 (const MatchNode *)this->_rChild : |
| 3361 (const MatchNode *)this; | |
| 0 | 3362 |
| 3363 // If our left child exists, it is the left reduction | |
| 3364 if ( mnode->_lChild ) { | |
| 3365 leftStr = mnode->_lChild->_internalop ? mnode->_lChild->_internalop | |
| 3366 : mnode->_lChild->_opType; | |
| 3367 } else { | |
| 3368 // May be simple chain rule: (Set dst operand_form_source) | |
| 3369 if ( sets_result() ) { | |
| 3370 OperandForm *oper = globals[mnode->_opType]->is_operand(); | |
| 3371 if( oper ) { | |
| 3372 leftStr = mnode->_opType; | |
| 3373 } | |
| 3374 } | |
| 3375 } | |
| 3376 return leftStr; | |
| 3377 } | |
| 3378 | |
| 3379 //------------------------------count_instr_names------------------------------ | |
| 3380 // Count occurrences of operands names in the leaves of the instruction | |
| 3381 // match rule. | |
| 3382 void MatchNode::count_instr_names( Dict &names ) { | |
| 3383 if( !this ) return; | |
| 3384 if( _lChild ) _lChild->count_instr_names(names); | |
| 3385 if( _rChild ) _rChild->count_instr_names(names); | |
| 3386 if( !_lChild && !_rChild ) { | |
| 3387 uintptr_t cnt = (uintptr_t)names[_name]; | |
| 3388 cnt++; // One more name found | |
| 3389 names.Insert(_name,(void*)cnt); | |
| 3390 } | |
| 3391 } | |
| 3392 | |
| 3393 //------------------------------build_instr_pred------------------------------- | |
| 3394 // Build a path to 'name' in buf. Actually only build if cnt is zero, so we | |
| 3395 // can skip some leading instances of 'name'. | |
| 3396 int MatchNode::build_instr_pred( char *buf, const char *name, int cnt ) { | |
| 3397 if( _lChild ) { | |
| 3398 if( !cnt ) strcpy( buf, "_kids[0]->" ); | |
| 3399 cnt = _lChild->build_instr_pred( buf+strlen(buf), name, cnt ); | |
| 3400 if( cnt < 0 ) return cnt; // Found it, all done | |
| 3401 } | |
| 3402 if( _rChild ) { | |
| 3403 if( !cnt ) strcpy( buf, "_kids[1]->" ); | |
| 3404 cnt = _rChild->build_instr_pred( buf+strlen(buf), name, cnt ); | |
| 3405 if( cnt < 0 ) return cnt; // Found it, all done | |
| 3406 } | |
| 3407 if( !_lChild && !_rChild ) { // Found a leaf | |
| 3408 // Wrong name? Give up... | |
| 3409 if( strcmp(name,_name) ) return cnt; | |
| 3410 if( !cnt ) strcpy(buf,"_leaf"); | |
| 3411 return cnt-1; | |
| 3412 } | |
| 3413 return cnt; | |
| 3414 } | |
| 3415 | |
| 3416 | |
| 3417 //------------------------------build_internalop------------------------------- | |
| 3418 // Build string representation of subtree | |
| 3419 void MatchNode::build_internalop( ) { | |
| 3420 char *iop, *subtree; | |
| 3421 const char *lstr, *rstr; | |
| 3422 // Build string representation of subtree | |
| 3423 // Operation lchildType rchildType | |
| 3424 int len = (int)strlen(_opType) + 4; | |
| 3425 lstr = (_lChild) ? ((_lChild->_internalop) ? | |
| 3426 _lChild->_internalop : _lChild->_opType) : ""; | |
| 3427 rstr = (_rChild) ? ((_rChild->_internalop) ? | |
| 3428 _rChild->_internalop : _rChild->_opType) : ""; | |
| 3429 len += (int)strlen(lstr) + (int)strlen(rstr); | |
| 3430 subtree = (char *)malloc(len); | |
| 3431 sprintf(subtree,"_%s_%s_%s", _opType, lstr, rstr); | |
| 3432 // Hash the subtree string in _internalOps; if a name exists, use it | |
| 3433 iop = (char *)_AD._internalOps[subtree]; | |
| 3434 // Else create a unique name, and add it to the hash table | |
| 3435 if (iop == NULL) { | |
| 3436 iop = subtree; | |
| 3437 _AD._internalOps.Insert(subtree, iop); | |
| 3438 _AD._internalOpNames.addName(iop); | |
| 3439 _AD._internalMatch.Insert(iop, this); | |
| 3440 } | |
| 3441 // Add the internal operand name to the MatchNode | |
| 3442 _internalop = iop; | |
| 3443 _result = iop; | |
| 3444 } | |
| 3445 | |
| 3446 | |
| 3447 void MatchNode::dump() { | |
| 3448 output(stderr); | |
| 3449 } | |
| 3450 | |
| 3451 void MatchNode::output(FILE *fp) { | |
| 3452 if (_lChild==0 && _rChild==0) { | |
| 3453 fprintf(fp," %s",_name); // operand | |
| 3454 } | |
| 3455 else { | |
| 3456 fprintf(fp," (%s ",_name); // " (opcodeName " | |
| 3457 if(_lChild) _lChild->output(fp); // left operand | |
| 3458 if(_rChild) _rChild->output(fp); // right operand | |
| 3459 fprintf(fp,")"); // ")" | |
| 3460 } | |
| 3461 } | |
| 3462 | |
| 3463 int MatchNode::needs_ideal_memory_edge(FormDict &globals) const { | |
| 3464 static const char *needs_ideal_memory_list[] = { | |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
3465 "StoreI","StoreL","StoreP","StoreN","StoreNKlass","StoreD","StoreF" , |
| 0 | 3466 "StoreB","StoreC","Store" ,"StoreFP", |
| 6849 | 3467 "LoadI", "LoadL", "LoadP" ,"LoadN", "LoadD" ,"LoadF" , |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3468 "LoadB" , "LoadUB", "LoadUS" ,"LoadS" ,"Load" , |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3469 "StoreVector", "LoadVector", |
|
164
c436414a719e
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents:
113
diff
changeset
|
3470 "LoadRange", "LoadKlass", "LoadNKlass", "LoadL_unaligned", "LoadD_unaligned", |
| 6143 | 3471 "LoadPLocked", |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
415
diff
changeset
|
3472 "StorePConditional", "StoreIConditional", "StoreLConditional", |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
3473 "CompareAndSwapI", "CompareAndSwapL", "CompareAndSwapP", "CompareAndSwapN", |
| 0 | 3474 "StoreCM", |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
3475 "ClearArray", |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
3476 "GetAndAddI", "GetAndSetI", "GetAndSetP", |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
3477 "GetAndAddL", "GetAndSetL", "GetAndSetN", |
| 0 | 3478 }; |
| 3479 int cnt = sizeof(needs_ideal_memory_list)/sizeof(char*); | |
| 3854 | 3480 if( strcmp(_opType,"PrefetchRead")==0 || |
| 3481 strcmp(_opType,"PrefetchWrite")==0 || | |
| 3482 strcmp(_opType,"PrefetchAllocation")==0 ) | |
| 0 | 3483 return 1; |
| 3484 if( _lChild ) { | |
| 3485 const char *opType = _lChild->_opType; | |
| 3486 for( int i=0; i<cnt; i++ ) | |
| 3487 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) | |
| 3488 return 1; | |
| 3489 if( _lChild->needs_ideal_memory_edge(globals) ) | |
| 3490 return 1; | |
| 3491 } | |
| 3492 if( _rChild ) { | |
| 3493 const char *opType = _rChild->_opType; | |
| 3494 for( int i=0; i<cnt; i++ ) | |
| 3495 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) | |
| 3496 return 1; | |
| 3497 if( _rChild->needs_ideal_memory_edge(globals) ) | |
| 3498 return 1; | |
| 3499 } | |
| 3500 | |
| 3501 return 0; | |
| 3502 } | |
| 3503 | |
| 3504 // TRUE if defines a derived oop, and so needs a base oop edge present | |
| 3505 // post-matching. | |
| 3506 int MatchNode::needs_base_oop_edge() const { | |
| 3507 if( !strcmp(_opType,"AddP") ) return 1; | |
| 3508 if( strcmp(_opType,"Set") ) return 0; | |
| 3509 return !strcmp(_rChild->_opType,"AddP"); | |
| 3510 } | |
| 3511 | |
| 3512 int InstructForm::needs_base_oop_edge(FormDict &globals) const { | |
| 3513 if( is_simple_chain_rule(globals) ) { | |
| 3514 const char *src = _matrule->_rChild->_opType; | |
| 3515 OperandForm *src_op = globals[src]->is_operand(); | |
| 3516 assert( src_op, "Not operand class of chain rule" ); | |
| 3517 return src_op->_matrule ? src_op->_matrule->needs_base_oop_edge() : 0; | |
| 3518 } // Else check instruction | |
| 3519 | |
| 3520 return _matrule ? _matrule->needs_base_oop_edge() : 0; | |
| 3521 } | |
| 3522 | |
| 3523 | |
| 3524 //-------------------------cisc spilling methods------------------------------- | |
| 3525 // helper routines and methods for detecting cisc-spilling instructions | |
| 3526 //-------------------------cisc_spill_merge------------------------------------ | |
| 3527 int MatchNode::cisc_spill_merge(int left_spillable, int right_spillable) { | |
| 3528 int cisc_spillable = Maybe_cisc_spillable; | |
| 3529 | |
| 3530 // Combine results of left and right checks | |
| 3531 if( (left_spillable == Maybe_cisc_spillable) && (right_spillable == Maybe_cisc_spillable) ) { | |
| 3532 // neither side is spillable, nor prevents cisc spilling | |
| 3533 cisc_spillable = Maybe_cisc_spillable; | |
| 3534 } | |
| 3535 else if( (left_spillable == Maybe_cisc_spillable) && (right_spillable > Maybe_cisc_spillable) ) { | |
| 3536 // right side is spillable | |
| 3537 cisc_spillable = right_spillable; | |
| 3538 } | |
| 3539 else if( (right_spillable == Maybe_cisc_spillable) && (left_spillable > Maybe_cisc_spillable) ) { | |
| 3540 // left side is spillable | |
| 3541 cisc_spillable = left_spillable; | |
| 3542 } | |
| 3543 else if( (left_spillable == Not_cisc_spillable) || (right_spillable == Not_cisc_spillable) ) { | |
| 3544 // left or right prevents cisc spilling this instruction | |
| 3545 cisc_spillable = Not_cisc_spillable; | |
| 3546 } | |
| 3547 else { | |
| 3548 // Only allow one to spill | |
| 3549 cisc_spillable = Not_cisc_spillable; | |
| 3550 } | |
| 3551 | |
| 3552 return cisc_spillable; | |
| 3553 } | |
| 3554 | |
| 3555 //-------------------------root_ops_match-------------------------------------- | |
| 3556 bool static root_ops_match(FormDict &globals, const char *op1, const char *op2) { | |
| 3557 // Base Case: check that the current operands/operations match | |
| 3558 assert( op1, "Must have op's name"); | |
| 3559 assert( op2, "Must have op's name"); | |
| 3560 const Form *form1 = globals[op1]; | |
| 3561 const Form *form2 = globals[op2]; | |
| 3562 | |
| 3563 return (form1 == form2); | |
| 3564 } | |
| 3565 | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3566 //-------------------------cisc_spill_match_node------------------------------- |
| 0 | 3567 // Recursively check two MatchRules for legal conversion via cisc-spilling |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3568 int MatchNode::cisc_spill_match(FormDict& globals, RegisterForm* registers, MatchNode* mRule2, const char* &operand, const char* ®_type) { |
| 0 | 3569 int cisc_spillable = Maybe_cisc_spillable; |
| 3570 int left_spillable = Maybe_cisc_spillable; | |
| 3571 int right_spillable = Maybe_cisc_spillable; | |
| 3572 | |
| 3573 // Check that each has same number of operands at this level | |
| 3574 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) | |
| 3575 return Not_cisc_spillable; | |
| 3576 | |
| 3577 // Base Case: check that the current operands/operations match | |
| 3578 // or are CISC spillable | |
| 3579 assert( _opType, "Must have _opType"); | |
| 3580 assert( mRule2->_opType, "Must have _opType"); | |
| 3581 const Form *form = globals[_opType]; | |
| 3582 const Form *form2 = globals[mRule2->_opType]; | |
| 3583 if( form == form2 ) { | |
| 3584 cisc_spillable = Maybe_cisc_spillable; | |
| 3585 } else { | |
| 3586 const InstructForm *form2_inst = form2 ? form2->is_instruction() : NULL; | |
| 3587 const char *name_left = mRule2->_lChild ? mRule2->_lChild->_opType : NULL; | |
| 3588 const char *name_right = mRule2->_rChild ? mRule2->_rChild->_opType : NULL; | |
| 624 | 3589 DataType data_type = Form::none; |
| 3590 if (form->is_operand()) { | |
| 3591 // Make sure the loadX matches the type of the reg | |
| 3592 data_type = form->ideal_to_Reg_type(form->is_operand()->ideal_type(globals)); | |
| 3593 } | |
| 0 | 3594 // Detect reg vs (loadX memory) |
| 3595 if( form->is_cisc_reg(globals) | |
| 3596 && form2_inst | |
| 624 | 3597 && data_type != Form::none |
| 3598 && (is_load_from_memory(mRule2->_opType) == data_type) // reg vs. (load memory) | |
| 0 | 3599 && (name_left != NULL) // NOT (load) |
| 3600 && (name_right == NULL) ) { // NOT (load memory foo) | |
| 3601 const Form *form2_left = name_left ? globals[name_left] : NULL; | |
| 3602 if( form2_left && form2_left->is_cisc_mem(globals) ) { | |
| 3603 cisc_spillable = Is_cisc_spillable; | |
| 3604 operand = _name; | |
| 3605 reg_type = _result; | |
| 3606 return Is_cisc_spillable; | |
| 3607 } else { | |
| 3608 cisc_spillable = Not_cisc_spillable; | |
| 3609 } | |
| 3610 } | |
| 3611 // Detect reg vs memory | |
| 3612 else if( form->is_cisc_reg(globals) && form2->is_cisc_mem(globals) ) { | |
| 3613 cisc_spillable = Is_cisc_spillable; | |
| 3614 operand = _name; | |
| 3615 reg_type = _result; | |
| 3616 return Is_cisc_spillable; | |
| 3617 } else { | |
| 3618 cisc_spillable = Not_cisc_spillable; | |
| 3619 } | |
| 3620 } | |
| 3621 | |
| 3622 // If cisc is still possible, check rest of tree | |
| 3623 if( cisc_spillable == Maybe_cisc_spillable ) { | |
| 3624 // Check that each has same number of operands at this level | |
| 3625 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; | |
| 3626 | |
| 3627 // Check left operands | |
| 3628 if( (_lChild == NULL) && (mRule2->_lChild == NULL) ) { | |
| 3629 left_spillable = Maybe_cisc_spillable; | |
| 3630 } else { | |
| 3631 left_spillable = _lChild->cisc_spill_match(globals, registers, mRule2->_lChild, operand, reg_type); | |
| 3632 } | |
| 3633 | |
| 3634 // Check right operands | |
| 3635 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { | |
| 3636 right_spillable = Maybe_cisc_spillable; | |
| 3637 } else { | |
| 3638 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); | |
| 3639 } | |
| 3640 | |
| 3641 // Combine results of left and right checks | |
| 3642 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); | |
| 3643 } | |
| 3644 | |
| 3645 return cisc_spillable; | |
| 3646 } | |
| 3647 | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3648 //---------------------------cisc_spill_match_rule------------------------------ |
| 0 | 3649 // Recursively check two MatchRules for legal conversion via cisc-spilling |
| 3650 // This method handles the root of Match tree, | |
| 3651 // general recursive checks done in MatchNode | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3652 int MatchRule::matchrule_cisc_spill_match(FormDict& globals, RegisterForm* registers, |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3653 MatchRule* mRule2, const char* &operand, |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3654 const char* ®_type) { |
| 0 | 3655 int cisc_spillable = Maybe_cisc_spillable; |
| 3656 int left_spillable = Maybe_cisc_spillable; | |
| 3657 int right_spillable = Maybe_cisc_spillable; | |
| 3658 | |
| 3659 // Check that each sets a result | |
| 3660 if( !(sets_result() && mRule2->sets_result()) ) return Not_cisc_spillable; | |
| 3661 // Check that each has same number of operands at this level | |
| 3662 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; | |
| 3663 | |
| 3664 // Check left operands: at root, must be target of 'Set' | |
| 3665 if( (_lChild == NULL) || (mRule2->_lChild == NULL) ) { | |
| 3666 left_spillable = Not_cisc_spillable; | |
| 3667 } else { | |
| 3668 // Do not support cisc-spilling instruction's target location | |
| 3669 if( root_ops_match(globals, _lChild->_opType, mRule2->_lChild->_opType) ) { | |
| 3670 left_spillable = Maybe_cisc_spillable; | |
| 3671 } else { | |
| 3672 left_spillable = Not_cisc_spillable; | |
| 3673 } | |
| 3674 } | |
| 3675 | |
| 3676 // Check right operands: recursive walk to identify reg->mem operand | |
| 3677 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { | |
| 3678 right_spillable = Maybe_cisc_spillable; | |
| 3679 } else { | |
| 3680 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); | |
| 3681 } | |
| 3682 | |
| 3683 // Combine results of left and right checks | |
| 3684 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); | |
| 3685 | |
| 3686 return cisc_spillable; | |
| 3687 } | |
| 3688 | |
| 3689 //----------------------------- equivalent ------------------------------------ | |
| 3690 // Recursively check to see if two match rules are equivalent. | |
| 3691 // This rule handles the root. | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3692 bool MatchRule::equivalent(FormDict &globals, MatchNode *mRule2) { |
| 0 | 3693 // Check that each sets a result |
| 3694 if (sets_result() != mRule2->sets_result()) { | |
| 3695 return false; | |
| 3696 } | |
| 3697 | |
| 3698 // Check that the current operands/operations match | |
| 3699 assert( _opType, "Must have _opType"); | |
| 3700 assert( mRule2->_opType, "Must have _opType"); | |
| 3701 const Form *form = globals[_opType]; | |
| 3702 const Form *form2 = globals[mRule2->_opType]; | |
| 3703 if( form != form2 ) { | |
| 3704 return false; | |
| 3705 } | |
| 3706 | |
| 3707 if (_lChild ) { | |
| 3708 if( !_lChild->equivalent(globals, mRule2->_lChild) ) | |
| 3709 return false; | |
| 3710 } else if (mRule2->_lChild) { | |
| 3711 return false; // I have NULL left child, mRule2 has non-NULL left child. | |
| 3712 } | |
| 3713 | |
| 3714 if (_rChild ) { | |
| 3715 if( !_rChild->equivalent(globals, mRule2->_rChild) ) | |
| 3716 return false; | |
| 3717 } else if (mRule2->_rChild) { | |
| 3718 return false; // I have NULL right child, mRule2 has non-NULL right child. | |
| 3719 } | |
| 3720 | |
| 3721 // We've made it through the gauntlet. | |
| 3722 return true; | |
| 3723 } | |
| 3724 | |
| 3725 //----------------------------- equivalent ------------------------------------ | |
| 3726 // Recursively check to see if two match rules are equivalent. | |
| 3727 // This rule handles the operands. | |
| 3728 bool MatchNode::equivalent(FormDict &globals, MatchNode *mNode2) { | |
| 3729 if( !mNode2 ) | |
| 3730 return false; | |
| 3731 | |
| 3732 // Check that the current operands/operations match | |
| 3733 assert( _opType, "Must have _opType"); | |
| 3734 assert( mNode2->_opType, "Must have _opType"); | |
| 3735 const Form *form = globals[_opType]; | |
| 3736 const Form *form2 = globals[mNode2->_opType]; | |
| 3839 | 3737 if( form != form2 ) { |
| 3738 return false; | |
| 3739 } | |
| 3740 | |
| 3741 // Check that their children also match | |
| 3742 if (_lChild ) { | |
| 3743 if( !_lChild->equivalent(globals, mNode2->_lChild) ) | |
| 3744 return false; | |
| 3745 } else if (mNode2->_lChild) { | |
| 3746 return false; // I have NULL left child, mNode2 has non-NULL left child. | |
| 3747 } | |
| 3748 | |
| 3749 if (_rChild ) { | |
| 3750 if( !_rChild->equivalent(globals, mNode2->_rChild) ) | |
| 3751 return false; | |
| 3752 } else if (mNode2->_rChild) { | |
| 3753 return false; // I have NULL right child, mNode2 has non-NULL right child. | |
| 3754 } | |
| 3755 | |
| 3756 // We've made it through the gauntlet. | |
| 3757 return true; | |
| 0 | 3758 } |
| 3759 | |
| 3760 //-------------------------- has_commutative_op ------------------------------- | |
| 3761 // Recursively check for commutative operations with subtree operands | |
| 3762 // which could be swapped. | |
| 3763 void MatchNode::count_commutative_op(int& count) { | |
| 3764 static const char *commut_op_list[] = { | |
| 3765 "AddI","AddL","AddF","AddD", | |
| 3766 "AndI","AndL", | |
| 3767 "MaxI","MinI", | |
| 3768 "MulI","MulL","MulF","MulD", | |
| 3769 "OrI" ,"OrL" , | |
| 3770 "XorI","XorL" | |
| 3771 }; | |
| 3772 int cnt = sizeof(commut_op_list)/sizeof(char*); | |
| 3773 | |
| 3774 if( _lChild && _rChild && (_lChild->_lChild || _rChild->_lChild) ) { | |
| 3775 // Don't swap if right operand is an immediate constant. | |
| 3776 bool is_const = false; | |
| 3777 if( _rChild->_lChild == NULL && _rChild->_rChild == NULL ) { | |
| 3778 FormDict &globals = _AD.globalNames(); | |
| 3779 const Form *form = globals[_rChild->_opType]; | |
| 3780 if ( form ) { | |
| 3781 OperandForm *oper = form->is_operand(); | |
| 3782 if( oper && oper->interface_type(globals) == Form::constant_interface ) | |
| 3783 is_const = true; | |
| 3784 } | |
| 3785 } | |
| 3786 if( !is_const ) { | |
| 3787 for( int i=0; i<cnt; i++ ) { | |
| 3788 if( strcmp(_opType, commut_op_list[i]) == 0 ) { | |
| 3789 count++; | |
| 3790 _commutative_id = count; // id should be > 0 | |
| 3791 break; | |
| 3792 } | |
| 3793 } | |
| 3794 } | |
| 3795 } | |
| 3796 if( _lChild ) | |
| 3797 _lChild->count_commutative_op(count); | |
| 3798 if( _rChild ) | |
| 3799 _rChild->count_commutative_op(count); | |
| 3800 } | |
| 3801 | |
| 3802 //-------------------------- swap_commutative_op ------------------------------ | |
| 3803 // Recursively swap specified commutative operation with subtree operands. | |
| 3804 void MatchNode::swap_commutative_op(bool atroot, int id) { | |
| 3805 if( _commutative_id == id ) { // id should be > 0 | |
| 3806 assert(_lChild && _rChild && (_lChild->_lChild || _rChild->_lChild ), | |
| 3807 "not swappable operation"); | |
| 3808 MatchNode* tmp = _lChild; | |
| 3809 _lChild = _rChild; | |
| 3810 _rChild = tmp; | |
| 3811 // Don't exit here since we need to build internalop. | |
| 3812 } | |
| 3813 | |
| 3814 bool is_set = ( strcmp(_opType, "Set") == 0 ); | |
| 3815 if( _lChild ) | |
| 3816 _lChild->swap_commutative_op(is_set, id); | |
| 3817 if( _rChild ) | |
| 3818 _rChild->swap_commutative_op(is_set, id); | |
| 3819 | |
| 3820 // If not the root, reduce this subtree to an internal operand | |
| 3821 if( !atroot && (_lChild || _rChild) ) { | |
| 3822 build_internalop(); | |
| 3823 } | |
| 3824 } | |
| 3825 | |
| 3826 //-------------------------- swap_commutative_op ------------------------------ | |
| 3827 // Recursively swap specified commutative operation with subtree operands. | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3828 void MatchRule::matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt) { |
| 0 | 3829 assert(match_rules_cnt < 100," too many match rule clones"); |
| 3830 // Clone | |
| 3831 MatchRule* clone = new MatchRule(_AD, this); | |
| 3832 // Swap operands of commutative operation | |
| 3833 ((MatchNode*)clone)->swap_commutative_op(true, count); | |
| 3834 char* buf = (char*) malloc(strlen(instr_ident) + 4); | |
| 3835 sprintf(buf, "%s_%d", instr_ident, match_rules_cnt++); | |
| 3836 clone->_result = buf; | |
| 3837 | |
| 3838 clone->_next = this->_next; | |
| 3839 this-> _next = clone; | |
| 3840 if( (--count) > 0 ) { | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3841 this-> matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
|
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3842 clone->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
| 0 | 3843 } |
| 3844 } | |
| 3845 | |
| 3846 //------------------------------MatchRule-------------------------------------- | |
| 3847 MatchRule::MatchRule(ArchDesc &ad) | |
| 3848 : MatchNode(ad), _depth(0), _construct(NULL), _numchilds(0) { | |
| 3849 _next = NULL; | |
| 3850 } | |
| 3851 | |
| 3852 MatchRule::MatchRule(ArchDesc &ad, MatchRule* mRule) | |
| 3853 : MatchNode(ad, *mRule, 0), _depth(mRule->_depth), | |
| 3854 _construct(mRule->_construct), _numchilds(mRule->_numchilds) { | |
| 3855 _next = NULL; | |
| 3856 } | |
| 3857 | |
| 3858 MatchRule::MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char *cnstr, | |
| 3859 int numleaves) | |
| 3860 : MatchNode(ad,*mroot), _depth(depth), _construct(cnstr), | |
| 3861 _numchilds(0) { | |
| 3862 _next = NULL; | |
| 3863 mroot->_lChild = NULL; | |
| 3864 mroot->_rChild = NULL; | |
| 3865 delete mroot; | |
| 3866 _numleaves = numleaves; | |
| 3867 _numchilds = (_lChild ? 1 : 0) + (_rChild ? 1 : 0); | |
| 3868 } | |
| 3869 MatchRule::~MatchRule() { | |
| 3870 } | |
| 3871 | |
| 3872 // Recursive call collecting info on top-level operands, not transitive. | |
| 3873 // Implementation does not modify state of internal structures. | |
|
603
dbbe28fc66b5
6778669: Patch from Red Hat -- fixes compilation errors
twisti
parents:
602
diff
changeset
|
3874 void MatchRule::append_components(FormDict& locals, ComponentList& components, bool def_flag) const { |
| 0 | 3875 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); |
| 3876 | |
| 3877 MatchNode::append_components(locals, components, | |
| 3878 false /* not necessarily a def */); | |
| 3879 } | |
| 3880 | |
| 3881 // Recursive call on all operands' match rules in my match rule. | |
| 3882 // Implementation does not modify state of internal structures since they | |
| 3883 // can be shared. | |
| 3884 // The MatchNode that is called first treats its | |
| 3885 bool MatchRule::base_operand(uint &position0, FormDict &globals, | |
| 3886 const char *&result, const char * &name, | |
| 3887 const char * &opType)const{ | |
| 3888 uint position = position0; | |
| 3889 | |
| 3890 return (MatchNode::base_operand( position, globals, result, name, opType)); | |
| 3891 } | |
| 3892 | |
| 3893 | |
| 3894 bool MatchRule::is_base_register(FormDict &globals) const { | |
| 3895 uint position = 1; | |
| 3896 const char *result = NULL; | |
| 3897 const char *name = NULL; | |
| 3898 const char *opType = NULL; | |
| 3899 if (!base_operand(position, globals, result, name, opType)) { | |
| 3900 position = 0; | |
| 3901 if( base_operand(position, globals, result, name, opType) && | |
| 3902 (strcmp(opType,"RegI")==0 || | |
| 3903 strcmp(opType,"RegP")==0 || | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
3904 strcmp(opType,"RegN")==0 || |
| 0 | 3905 strcmp(opType,"RegL")==0 || |
| 3906 strcmp(opType,"RegF")==0 || | |
| 3907 strcmp(opType,"RegD")==0 || | |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3908 strcmp(opType,"VecS")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3909 strcmp(opType,"VecD")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3910 strcmp(opType,"VecX")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
3911 strcmp(opType,"VecY")==0 || |
| 0 | 3912 strcmp(opType,"Reg" )==0) ) { |
| 3913 return 1; | |
| 3914 } | |
| 3915 } | |
| 3916 return 0; | |
| 3917 } | |
| 3918 | |
| 3919 Form::DataType MatchRule::is_base_constant(FormDict &globals) const { | |
| 3920 uint position = 1; | |
| 3921 const char *result = NULL; | |
| 3922 const char *name = NULL; | |
| 3923 const char *opType = NULL; | |
| 3924 if (!base_operand(position, globals, result, name, opType)) { | |
| 3925 position = 0; | |
| 3926 if (base_operand(position, globals, result, name, opType)) { | |
| 3927 return ideal_to_const_type(opType); | |
| 3928 } | |
| 3929 } | |
| 3930 return Form::none; | |
| 3931 } | |
| 3932 | |
| 3933 bool MatchRule::is_chain_rule(FormDict &globals) const { | |
| 3934 | |
| 3935 // Check for chain rule, and do not generate a match list for it | |
| 3936 if ((_lChild == NULL) && (_rChild == NULL) ) { | |
| 3937 const Form *form = globals[_opType]; | |
| 3938 // If this is ideal, then it is a base match, not a chain rule. | |
| 3939 if ( form && form->is_operand() && (!form->ideal_only())) { | |
| 3940 return true; | |
| 3941 } | |
| 3942 } | |
| 3943 // Check for "Set" form of chain rule, and do not generate a match list | |
| 3944 if (_rChild) { | |
| 3945 const char *rch = _rChild->_opType; | |
| 3946 const Form *form = globals[rch]; | |
| 3947 if ((!strcmp(_opType,"Set") && | |
| 3948 ((form) && form->is_operand()))) { | |
| 3949 return true; | |
| 3950 } | |
| 3951 } | |
| 3952 return false; | |
| 3953 } | |
| 3954 | |
| 3955 int MatchRule::is_ideal_copy() const { | |
| 3956 if( _rChild ) { | |
| 3957 const char *opType = _rChild->_opType; | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3958 #if 1 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3959 if( strcmp(opType,"CastIP")==0 ) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3960 return 1; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3961 #else |
| 0 | 3962 if( strcmp(opType,"CastII")==0 ) |
| 3963 return 1; | |
| 3964 // Do not treat *CastPP this way, because it | |
| 3965 // may transfer a raw pointer to an oop. | |
| 3966 // If the register allocator were to coalesce this | |
| 3967 // into a single LRG, the GC maps would be incorrect. | |
| 3968 //if( strcmp(opType,"CastPP")==0 ) | |
| 3969 // return 1; | |
| 3970 //if( strcmp(opType,"CheckCastPP")==0 ) | |
| 3971 // return 1; | |
| 3972 // | |
| 3973 // Do not treat CastX2P or CastP2X this way, because | |
| 3974 // raw pointers and int types are treated differently | |
| 3975 // when saving local & stack info for safepoints in | |
| 3976 // Output(). | |
| 3977 //if( strcmp(opType,"CastX2P")==0 ) | |
| 3978 // return 1; | |
| 3979 //if( strcmp(opType,"CastP2X")==0 ) | |
| 3980 // return 1; | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3981 #endif |
| 0 | 3982 } |
| 3983 if( is_chain_rule(_AD.globalNames()) && | |
| 3984 _lChild && strncmp(_lChild->_opType,"stackSlot",9)==0 ) | |
| 3985 return 1; | |
| 3986 return 0; | |
| 3987 } | |
| 3988 | |
| 3989 | |
| 3990 int MatchRule::is_expensive() const { | |
| 3991 if( _rChild ) { | |
| 3992 const char *opType = _rChild->_opType; | |
| 3993 if( strcmp(opType,"AtanD")==0 || | |
| 3994 strcmp(opType,"CosD")==0 || | |
| 3995 strcmp(opType,"DivD")==0 || | |
| 3996 strcmp(opType,"DivF")==0 || | |
| 3997 strcmp(opType,"DivI")==0 || | |
| 3998 strcmp(opType,"ExpD")==0 || | |
| 3999 strcmp(opType,"LogD")==0 || | |
| 4000 strcmp(opType,"Log10D")==0 || | |
| 4001 strcmp(opType,"ModD")==0 || | |
| 4002 strcmp(opType,"ModF")==0 || | |
| 4003 strcmp(opType,"ModI")==0 || | |
| 4004 strcmp(opType,"PowD")==0 || | |
| 4005 strcmp(opType,"SinD")==0 || | |
| 4006 strcmp(opType,"SqrtD")==0 || | |
| 4007 strcmp(opType,"TanD")==0 || | |
| 4008 strcmp(opType,"ConvD2F")==0 || | |
| 4009 strcmp(opType,"ConvD2I")==0 || | |
| 4010 strcmp(opType,"ConvD2L")==0 || | |
| 4011 strcmp(opType,"ConvF2D")==0 || | |
| 4012 strcmp(opType,"ConvF2I")==0 || | |
| 4013 strcmp(opType,"ConvF2L")==0 || | |
| 4014 strcmp(opType,"ConvI2D")==0 || | |
| 4015 strcmp(opType,"ConvI2F")==0 || | |
| 4016 strcmp(opType,"ConvI2L")==0 || | |
| 4017 strcmp(opType,"ConvL2D")==0 || | |
| 4018 strcmp(opType,"ConvL2F")==0 || | |
| 4019 strcmp(opType,"ConvL2I")==0 || | |
| 247 | 4020 strcmp(opType,"DecodeN")==0 || |
| 4021 strcmp(opType,"EncodeP")==0 || | |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
4022 strcmp(opType,"EncodePKlass")==0 || |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6823
diff
changeset
|
4023 strcmp(opType,"DecodeNKlass")==0 || |
| 0 | 4024 strcmp(opType,"RoundDouble")==0 || |
| 4025 strcmp(opType,"RoundFloat")==0 || | |
| 4026 strcmp(opType,"ReverseBytesI")==0 || | |
| 4027 strcmp(opType,"ReverseBytesL")==0 || | |
|
1396
d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
never
parents:
986
diff
changeset
|
4028 strcmp(opType,"ReverseBytesUS")==0 || |
|
d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
never
parents:
986
diff
changeset
|
4029 strcmp(opType,"ReverseBytesS")==0 || |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4030 strcmp(opType,"ReplicateB")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4031 strcmp(opType,"ReplicateS")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4032 strcmp(opType,"ReplicateI")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4033 strcmp(opType,"ReplicateL")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4034 strcmp(opType,"ReplicateF")==0 || |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4035 strcmp(opType,"ReplicateD")==0 || |
| 0 | 4036 0 /* 0 to line up columns nicely */ ) |
| 4037 return 1; | |
| 4038 } | |
| 4039 return 0; | |
| 4040 } | |
| 4041 | |
| 4042 bool MatchRule::is_ideal_if() const { | |
| 4043 if( !_opType ) return false; | |
| 4044 return | |
| 4045 !strcmp(_opType,"If" ) || | |
| 4046 !strcmp(_opType,"CountedLoopEnd"); | |
| 4047 } | |
| 4048 | |
| 4049 bool MatchRule::is_ideal_fastlock() const { | |
| 4050 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4051 return (strcmp(_rChild->_opType,"FastLock") == 0); | |
| 4052 } | |
| 4053 return false; | |
| 4054 } | |
| 4055 | |
| 4056 bool MatchRule::is_ideal_membar() const { | |
| 4057 if( !_opType ) return false; | |
| 4058 return | |
|
14439
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4059 !strcmp(_opType,"MemBarAcquire") || |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4060 !strcmp(_opType,"MemBarRelease") || |
|
3849
f1c12354c3f7
7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths
roland
parents:
3842
diff
changeset
|
4061 !strcmp(_opType,"MemBarAcquireLock") || |
|
f1c12354c3f7
7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths
roland
parents:
3842
diff
changeset
|
4062 !strcmp(_opType,"MemBarReleaseLock") || |
|
14439
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4063 !strcmp(_opType,"LoadFence" ) || |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4064 !strcmp(_opType,"StoreFence") || |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4065 !strcmp(_opType,"MemBarVolatile") || |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4066 !strcmp(_opType,"MemBarCPUOrder") || |
|
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14434
diff
changeset
|
4067 !strcmp(_opType,"MemBarStoreStore"); |
| 0 | 4068 } |
| 4069 | |
| 4070 bool MatchRule::is_ideal_loadPC() const { | |
| 4071 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4072 return (strcmp(_rChild->_opType,"LoadPC") == 0); | |
| 4073 } | |
| 4074 return false; | |
| 4075 } | |
| 4076 | |
| 4077 bool MatchRule::is_ideal_box() const { | |
| 4078 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4079 return (strcmp(_rChild->_opType,"Box") == 0); | |
| 4080 } | |
| 4081 return false; | |
| 4082 } | |
| 4083 | |
| 4084 bool MatchRule::is_ideal_goto() const { | |
| 4085 bool ideal_goto = false; | |
| 4086 | |
| 4087 if( _opType && (strcmp(_opType,"Goto") == 0) ) { | |
| 4088 ideal_goto = true; | |
| 4089 } | |
| 4090 return ideal_goto; | |
| 4091 } | |
| 4092 | |
| 4093 bool MatchRule::is_ideal_jump() const { | |
| 4094 if( _opType ) { | |
| 4095 if( !strcmp(_opType,"Jump") ) | |
| 4096 return true; | |
| 4097 } | |
| 4098 return false; | |
| 4099 } | |
| 4100 | |
| 4101 bool MatchRule::is_ideal_bool() const { | |
| 4102 if( _opType ) { | |
| 4103 if( !strcmp(_opType,"Bool") ) | |
| 4104 return true; | |
| 4105 } | |
| 4106 return false; | |
| 4107 } | |
| 4108 | |
| 4109 | |
| 4110 Form::DataType MatchRule::is_ideal_load() const { | |
| 4111 Form::DataType ideal_load = Form::none; | |
| 4112 | |
| 4113 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4114 const char *opType = _rChild->_opType; | |
| 4115 ideal_load = is_load_from_memory(opType); | |
| 4116 } | |
| 4117 | |
| 4118 return ideal_load; | |
| 4119 } | |
| 4120 | |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4121 bool MatchRule::is_vector() const { |
|
6802
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4122 static const char *vector_list[] = { |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4123 "AddVB","AddVS","AddVI","AddVL","AddVF","AddVD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4124 "SubVB","SubVS","SubVI","SubVL","SubVF","SubVD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4125 "MulVS","MulVI","MulVF","MulVD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4126 "DivVF","DivVD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4127 "AndV" ,"XorV" ,"OrV", |
| 6823 | 4128 "LShiftCntV","RShiftCntV", |
|
6802
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4129 "LShiftVB","LShiftVS","LShiftVI","LShiftVL", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4130 "RShiftVB","RShiftVS","RShiftVI","RShiftVL", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4131 "URShiftVB","URShiftVS","URShiftVI","URShiftVL", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4132 "ReplicateB","ReplicateS","ReplicateI","ReplicateL","ReplicateF","ReplicateD", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4133 "LoadVector","StoreVector", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4134 // Next are not supported currently. |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4135 "PackB","PackS","PackI","PackL","PackF","PackD","Pack2L","Pack2D", |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4136 "ExtractB","ExtractUB","ExtractC","ExtractS","ExtractI","ExtractL","ExtractF","ExtractD" |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4137 }; |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4138 int cnt = sizeof(vector_list)/sizeof(char*); |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4139 if (_rChild) { |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4140 const char *opType = _rChild->_opType; |
|
6802
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4141 for (int i=0; i<cnt; i++) |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4142 if (strcmp(opType,vector_list[i]) == 0) |
|
0702f188baeb
7200233: C2: can't use expand rules for vector instruction rules
kvn
parents:
6795
diff
changeset
|
4143 return true; |
|
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4144 } |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4145 return false; |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4146 } |
|
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
6143
diff
changeset
|
4147 |
| 0 | 4148 |
|
855
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4149 bool MatchRule::skip_antidep_check() const { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4150 // Some loads operate on what is effectively immutable memory so we |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4151 // should skip the anti dep computations. For some of these nodes |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4152 // the rewritable field keeps the anti dep logic from triggering but |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4153 // for certain kinds of LoadKlass it does not since they are |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4154 // actually reading memory which could be rewritten by the runtime, |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4155 // though never by generated code. This disables it uniformly for |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4156 // the nodes that behave like this: LoadKlass, LoadNKlass and |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4157 // LoadRange. |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4158 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4159 const char *opType = _rChild->_opType; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4160 if (strcmp("LoadKlass", opType) == 0 || |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4161 strcmp("LoadNKlass", opType) == 0 || |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4162 strcmp("LoadRange", opType) == 0) { |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4163 return true; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4164 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4165 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4166 |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4167 return false; |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4168 } |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4169 |
|
f9094a5e1c8a
6857159: local schedule failed with checkcast of Thread.currentThread()
never
parents:
681
diff
changeset
|
4170 |
| 0 | 4171 Form::DataType MatchRule::is_ideal_store() const { |
| 4172 Form::DataType ideal_store = Form::none; | |
| 4173 | |
| 4174 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { | |
| 4175 const char *opType = _rChild->_opType; | |
| 4176 ideal_store = is_store_to_memory(opType); | |
| 4177 } | |
| 4178 | |
| 4179 return ideal_store; | |
| 4180 } | |
| 4181 | |
| 4182 | |
| 4183 void MatchRule::dump() { | |
| 4184 output(stderr); | |
| 4185 } | |
| 4186 | |
| 6850 | 4187 // Write just one line. |
| 4188 void MatchRule::output_short(FILE *fp) { | |
| 0 | 4189 fprintf(fp,"MatchRule: ( %s",_name); |
| 4190 if (_lChild) _lChild->output(fp); | |
| 4191 if (_rChild) _rChild->output(fp); | |
| 6850 | 4192 fprintf(fp," )"); |
| 4193 } | |
| 4194 | |
| 4195 void MatchRule::output(FILE *fp) { | |
| 4196 output_short(fp); | |
| 4197 fprintf(fp,"\n nesting depth = %d\n", _depth); | |
| 0 | 4198 if (_result) fprintf(fp," Result Type = %s", _result); |
| 4199 fprintf(fp,"\n"); | |
| 4200 } | |
| 4201 | |
| 4202 //------------------------------Attribute-------------------------------------- | |
| 4203 Attribute::Attribute(char *id, char* val, int type) | |
| 4204 : _ident(id), _val(val), _atype(type) { | |
| 4205 } | |
| 4206 Attribute::~Attribute() { | |
| 4207 } | |
| 4208 | |
| 4209 int Attribute::int_val(ArchDesc &ad) { | |
| 4210 // Make sure it is an integer constant: | |
| 4211 int result = 0; | |
| 4212 if (!_val || !ADLParser::is_int_token(_val, result)) { | |
| 4213 ad.syntax_err(0, "Attribute %s must have an integer value: %s", | |
| 4214 _ident, _val ? _val : ""); | |
| 4215 } | |
| 4216 return result; | |
| 4217 } | |
| 4218 | |
| 4219 void Attribute::dump() { | |
| 4220 output(stderr); | |
| 4221 } // Debug printer | |
| 4222 | |
| 4223 // Write to output files | |
| 4224 void Attribute::output(FILE *fp) { | |
| 4225 fprintf(fp,"Attribute: %s %s\n", (_ident?_ident:""), (_val?_val:"")); | |
| 4226 } | |
| 4227 | |
| 4228 //------------------------------FormatRule---------------------------------- | |
| 4229 FormatRule::FormatRule(char *temp) | |
| 4230 : _temp(temp) { | |
| 4231 } | |
| 4232 FormatRule::~FormatRule() { | |
| 4233 } | |
| 4234 | |
| 4235 void FormatRule::dump() { | |
| 4236 output(stderr); | |
| 4237 } | |
| 4238 | |
| 4239 // Write to output files | |
| 4240 void FormatRule::output(FILE *fp) { | |
| 4241 fprintf(fp,"\nFormat Rule: \n%s", (_temp?_temp:"")); | |
| 4242 fprintf(fp,"\n"); | |
| 4243 } |