Mercurial > hg > graal-jvmci-8
annotate src/share/vm/adlc/formsopt.hpp @ 23049:a1642365d69f
8075798: Allow ADLC register class to depend on runtime conditions also for cisc-spillable classes
Summary: Introduce a new register class, reg_class_dynamic, that supports also cist-spillable masks.
Reviewed-by: kvn, dlong, roland
| author | zmajo |
|---|---|
| date | Fri, 27 Mar 2015 10:57:42 +0100 |
| parents | db2e64ca2d5a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_ADLC_FORMSOPT_HPP |
| 26 #define SHARE_VM_ADLC_FORMSOPT_HPP | |
| 27 | |
| 0 | 28 // FORMSOPT.HPP - ADL Parser Target Specific Optimization Forms Classes |
| 29 | |
| 30 // Class List | |
| 31 class Form; | |
| 32 class InstructForm; | |
| 33 class OperandForm; | |
| 34 class OpClassForm; | |
| 35 class AttributeForm; | |
| 36 class RegisterForm; | |
| 37 class PipelineForm; | |
| 38 class SourceForm; | |
| 39 class EncodeForm; | |
| 40 class Component; | |
| 41 class Constraint; | |
| 42 class Predicate; | |
| 43 class MatchRule; | |
| 44 class Attribute; | |
| 45 class Effect; | |
| 46 class ExpandRule; | |
| 47 class RewriteRule; | |
| 48 class ConstructRule; | |
| 49 class FormatRule; | |
| 50 class Peephole; | |
| 51 class PeepMatch; | |
| 52 class PeepConstraint; | |
| 53 class EncClass; | |
| 54 class Interface; | |
| 55 class RegInterface; | |
| 56 class ConstInterface; | |
| 57 class MemInterface; | |
| 58 class CondInterface; | |
| 59 class Opcode; | |
| 60 class InsEncode; | |
| 61 class RegDef; | |
| 62 class RegClass; | |
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63 class CodeSnippetRegClass; |
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64 class ConditionalRegClass; |
| 0 | 65 class AllocClass; |
| 66 class ResourceForm; | |
| 67 class PipeClassForm; | |
| 68 class PipeClassOperandForm; | |
| 69 class PipeClassResourceForm; | |
| 70 class PeepMatch; | |
| 71 class PeepConstraint; | |
| 72 class PeepReplace; | |
| 73 class MatchList; | |
| 74 | |
| 75 class ArchDesc; | |
| 76 | |
| 77 //==============================Register Allocation============================ | |
| 78 //------------------------------RegisterForm----------------------------------- | |
| 79 class RegisterForm : public Form { | |
| 80 private: | |
| 81 AllocClass *_current_ac; // State used by iter_RegDefs() | |
| 82 | |
| 83 public: | |
| 84 // Public Data | |
| 85 NameList _rdefs; // List of register definition names | |
| 86 Dict _regDef; // map register name to RegDef* | |
| 87 | |
| 88 NameList _rclasses; // List of register class names | |
| 89 Dict _regClass; // map register class name to RegClass* | |
| 90 | |
| 91 NameList _aclasses; // List of allocation class names | |
| 92 Dict _allocClass; // Dictionary of allocation classes | |
| 93 | |
| 94 static int _reg_ctr; // Register counter | |
| 95 static int RegMask_Size(); // Compute RegMask size | |
| 96 | |
| 97 // Public Methods | |
| 98 RegisterForm(); | |
| 99 ~RegisterForm(); | |
| 100 | |
| 101 void addRegDef(char *regName, char *callingConv, char *c_conv, | |
| 102 char * idealtype, char *encoding, char* concreteName); | |
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103 template<typename T> T* addRegClass(const char* className); |
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104 |
| 0 | 105 AllocClass *addAllocClass(char *allocName); |
| 106 void addSpillRegClass(); | |
| 107 | |
| 108 // Provide iteration over all register definitions | |
| 109 // in the order used by the register allocator | |
| 110 void reset_RegDefs(); | |
| 111 RegDef *iter_RegDefs(); | |
| 112 RegDef *getRegDef (const char *regName); | |
| 113 | |
| 114 RegClass *getRegClass(const char *className); | |
| 115 | |
| 116 // Return register mask, compressed chunk and register # | |
| 117 uint reg_mask(char *register_class); | |
| 118 | |
| 119 // Check that register classes are compatible with chunks | |
| 120 bool verify(); | |
| 121 | |
| 122 void dump(); // Debug printer | |
| 123 void output(FILE *fp); // Write info to output files | |
| 124 }; | |
| 125 | |
| 126 //------------------------------RegDef----------------------------------------- | |
| 127 class RegDef : public Form { | |
| 128 public: | |
| 129 // Public Data | |
| 130 const char *_regname; // ADLC (Opto) Register name | |
| 131 const char *_callconv; // Calling convention | |
| 132 const char *_c_conv; // Native calling convention, 'C' | |
| 133 const char *_idealtype; // Ideal Type for register save/restore | |
| 134 const char *_concrete; // concrete register name | |
| 135 | |
| 136 private: | |
| 137 const char *_register_encode; // The register encoding | |
| 138 // The chunk and register mask bits define info for register allocation | |
| 139 uint32 _register_num; // Which register am I | |
| 140 | |
| 141 public: | |
| 142 // Public Methods | |
| 143 RegDef(char *regname, char *callconv, char *c_conv, | |
| 144 char *idealtype, char *encoding, char *concrete); | |
| 145 ~RegDef(); // Destructor | |
| 146 | |
| 147 // Interface to define/redefine the register number | |
| 148 void set_register_num(uint32 new_register_num); | |
| 149 | |
| 150 // Bit pattern used for generating machine code | |
| 151 const char *register_encode() const; | |
| 152 // Register number used in machine-independent code | |
| 153 uint32 register_num() const; | |
| 154 | |
| 155 void dump(); // Debug printer | |
| 156 void output(FILE *fp); // Write info to output files | |
| 157 }; | |
| 158 | |
| 159 //------------------------------RegClass--------------------------------------- | |
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160 // Generic register class. This register class is the internal representation |
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161 // for the following .ad file format: |
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162 // |
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163 // reg_class ptr(RAX, RBX, ...); |
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164 // |
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165 // where ptr is the name of the register class, RAX and RBX are registers. |
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166 // |
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167 // This register class allows registers to be spilled onto the stack. Spilling |
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168 // is allowed is field _stack_or_reg is true. |
| 0 | 169 class RegClass : public Form { |
| 170 public: | |
| 171 // Public Data | |
| 172 const char *_classid; // Name of class | |
| 173 NameList _regDefs; // List of registers in class | |
| 174 Dict _regDef; // Dictionary of registers in class | |
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175 protected: |
| 0 | 176 bool _stack_or_reg; // Allowed on any stack slot |
| 177 | |
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178 public: |
| 0 | 179 // Public Methods |
| 180 RegClass(const char *classid);// Constructor | |
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181 virtual ~RegClass(); |
| 0 | 182 |
| 183 void addReg(RegDef *regDef); // Add a register to this class | |
| 184 | |
| 185 uint size() const; // Number of registers in class | |
| 186 int regs_in_word( int wordnum, bool stack_also ); | |
| 187 | |
| 188 const RegDef *get_RegDef(const char *regDef_name) const; | |
| 189 | |
| 190 // Returns the lowest numbered register in the mask. | |
| 191 const RegDef* find_first_elem(); | |
| 192 | |
| 193 // Iteration support | |
| 194 void reset(); // Reset the following two iterators | |
| 195 RegDef *RegDef_iter(); // which move jointly, | |
| 196 const char *rd_name_iter(); // invoking either advances both. | |
| 197 | |
| 198 void dump(); // Debug printer | |
| 199 void output(FILE *fp); // Write info to output files | |
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200 |
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201 virtual bool has_stack_version() { |
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202 return _stack_or_reg; |
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203 } |
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204 virtual void set_stack_version(bool flag) { |
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205 _stack_or_reg = flag; |
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206 } |
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207 |
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208 virtual void declare_register_masks(FILE* fp); |
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209 virtual void build_register_masks(FILE* fp); |
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210 }; |
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211 |
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212 //------------------------------CodeSnippetRegClass---------------------------- |
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213 // Register class that has an user-defined C++ code snippet attached to it |
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214 // to determine at runtime which register class to use. This register class is |
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215 // the internal representation for the following .ad file format: |
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216 // |
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217 // reg_class actual_dflt_reg %{ |
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218 // if (VM_Version::has_vfp3_32()) { |
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219 // return DFLT_REG_mask(); |
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220 // } else { |
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221 // return DFLT_LOW_REG_mask(); |
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222 // } |
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223 // %} |
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224 // |
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225 // where DFLT_REG_mask() and DFLT_LOW_REG_mask() are the internal names of the |
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226 // masks of register classes dflt_reg and dflt_low_reg. |
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227 // |
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228 // The attached code snippet can select also between more than two register classes. |
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229 // This register class can be, however, used only if the register class is not |
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230 // cisc-spillable (i.e., the registers of this class are not allowed on the stack, |
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231 // which is equivalent with _stack_or_reg being false). |
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232 class CodeSnippetRegClass : public RegClass { |
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233 protected: |
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234 char* _code_snippet; |
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235 public: |
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236 CodeSnippetRegClass(const char* classid);// Constructor |
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237 ~CodeSnippetRegClass(); |
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238 |
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239 void set_code_snippet(char* code) { |
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240 _code_snippet = code; |
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241 } |
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242 char* code_snippet() { |
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243 return _code_snippet; |
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244 } |
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245 void set_stack_version(bool flag) { |
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246 assert(false, "User defined register classes are not allowed to spill to the stack."); |
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247 } |
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248 void declare_register_masks(FILE* fp); |
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249 void build_register_masks(FILE* fp) { |
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250 // We do not need to generate register masks because we select at runtime |
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251 // between register masks generated for other register classes. |
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252 return; |
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253 } |
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254 }; |
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255 |
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256 //------------------------------ConditionalRegClass---------------------------- |
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257 // Register class that has two register classes and a runtime condition attached |
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258 // to it. The condition is evaluated at runtime and either one of the register |
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259 // attached register classes is selected. This register class is the internal |
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260 // representation for the following .ad format: |
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261 // |
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262 // reg_class_dynamic actual_dflt_reg(dflt_reg, low_reg, |
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263 // %{ VM_Version::has_vfp3_32() }% |
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264 // ); |
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265 // |
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266 // This example is equivalent to the example used with the CodeSnippetRegClass |
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267 // register class. A ConditionalRegClass works also if a register class is cisc-spillable |
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268 // (i.e., _stack_or_reg is true), but if can select only between two register classes. |
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269 class ConditionalRegClass : public RegClass { |
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270 protected: |
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271 // reference to condition code |
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272 char* _condition_code; // C++ condition code to dynamically determine which register class to use. |
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273 |
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274 // Example syntax (equivalent to previous example): |
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275 // |
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276 // reg_class actual_dflt_reg(dflt_reg, low_reg, |
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277 // %{ VM_Version::has_vfp3_32() }% |
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278 // ); |
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279 // reference to conditional register classes |
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280 RegClass* _rclasses[2]; // 0 is the register class selected if the condition code returns true |
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281 // 1 is the register class selected if the condition code returns false |
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282 public: |
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283 ConditionalRegClass(const char* classid);// Constructor |
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284 ~ConditionalRegClass(); |
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285 |
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286 virtual void set_stack_version(bool flag) { |
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287 RegClass::set_stack_version(flag); |
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288 assert((_rclasses[0] != NULL), "Register class NULL for condition code == true"); |
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289 assert((_rclasses[1] != NULL), "Register class NULL for condition code == false"); |
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290 _rclasses[0]->set_stack_version(flag); |
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291 _rclasses[1]->set_stack_version(flag); |
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292 } |
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293 void declare_register_masks(FILE* fp); |
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294 void build_register_masks(FILE* fp) { |
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295 // We do not need to generate register masks because we select at runtime |
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296 // between register masks generated for other register classes. |
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297 return; |
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298 } |
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299 void set_rclass_at_index(int index, RegClass* rclass) { |
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300 assert((0 <= index && index < 2), "Condition code can select only between two register classes"); |
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301 _rclasses[index] = rclass; |
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302 } |
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303 void set_condition_code(char* code) { |
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304 _condition_code = code; |
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305 } |
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306 char* condition_code() { |
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307 return _condition_code; |
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308 } |
| 0 | 309 }; |
| 310 | |
| 311 //------------------------------AllocClass------------------------------------- | |
| 312 class AllocClass : public Form { | |
| 313 private: | |
| 314 | |
| 315 public: | |
| 316 // Public Data | |
| 317 char *_classid; // Name of class | |
| 318 NameList _regDefs; // List of registers in class | |
| 319 Dict _regDef; // Dictionary of registers in class | |
| 320 | |
| 321 // Public Methods | |
| 322 AllocClass(char *classid); // Constructor | |
| 323 | |
| 324 void addReg(RegDef *regDef); // Add a register to this class | |
| 325 uint size() {return _regDef.Size();} // Number of registers in class | |
| 326 | |
| 327 void dump(); // Debug printer | |
| 328 void output(FILE *fp); // Write info to output files | |
| 329 }; | |
| 330 | |
| 331 | |
| 332 //==============================Frame Handling================================ | |
| 333 //------------------------------FrameForm------------------------------------- | |
| 334 class FrameForm : public Form { | |
| 335 private: | |
| 336 | |
| 337 public: | |
| 338 // Public Data | |
| 339 bool _direction; // Direction of stack growth | |
| 340 char *_sync_stack_slots; | |
| 341 char *_inline_cache_reg; | |
| 342 char *_interpreter_method_oop_reg; | |
| 343 char *_interpreter_frame_pointer_reg; | |
| 344 char *_cisc_spilling_operand_name; | |
| 345 char *_frame_pointer; | |
| 346 char *_c_frame_pointer; | |
| 347 char *_alignment; | |
| 348 bool _return_addr_loc; | |
| 349 bool _c_return_addr_loc; | |
| 350 char *_return_addr; | |
| 351 char *_c_return_addr; | |
| 352 char *_in_preserve_slots; | |
| 353 char *_varargs_C_out_slots_killed; | |
| 354 char *_calling_convention; | |
| 355 char *_c_calling_convention; | |
| 356 char *_return_value; | |
| 357 char *_c_return_value; | |
| 358 | |
| 359 // Public Methods | |
| 360 FrameForm(); | |
| 361 ~FrameForm(); | |
| 362 | |
| 363 void dump(); // Debug printer | |
| 364 void output(FILE *fp); // Write info to output files | |
| 365 }; | |
| 366 | |
| 367 | |
| 368 //==============================Scheduling===================================== | |
| 369 //------------------------------PipelineForm----------------------------------- | |
| 370 class PipelineForm : public Form { | |
| 371 private: | |
| 372 | |
| 373 public: | |
| 374 // Public Data | |
| 375 NameList _reslist; // List of pipeline resources | |
| 376 FormDict _resdict; // Resource Name -> ResourceForm mapping | |
| 377 int _rescount; // Number of resources (ignores OR cases) | |
| 378 int _maxcycleused; // Largest cycle used relative to beginning of instruction | |
| 379 | |
| 380 NameList _stages; // List of pipeline stages on architecture | |
| 381 int _stagecnt; // Number of stages listed | |
| 382 | |
| 383 NameList _classlist; // List of pipeline classes | |
| 384 FormDict _classdict; // Class Name -> PipeClassForm mapping | |
| 385 int _classcnt; // Number of classes | |
| 386 | |
| 387 NameList _noplist; // List of NOP instructions | |
| 388 int _nopcnt; // Number of nop instructions | |
| 389 | |
| 390 bool _variableSizeInstrs; // Indicates if this architecture has variable sized instructions | |
| 391 bool _branchHasDelaySlot; // Indicates that branches have delay slot instructions | |
| 392 int _maxInstrsPerBundle; // Indicates the maximum number of instructions for ILP | |
| 393 int _maxBundlesPerCycle; // Indicates the maximum number of bundles for ILP | |
| 394 int _instrUnitSize; // The minimum instruction unit size, in bytes | |
| 395 int _bundleUnitSize; // The bundle unit size, in bytes | |
| 396 int _instrFetchUnitSize; // The size of the I-fetch unit, in bytes [must be power of 2] | |
| 397 int _instrFetchUnits; // The number of I-fetch units processed per cycle | |
| 398 | |
| 399 // Public Methods | |
| 400 PipelineForm(); | |
| 401 ~PipelineForm(); | |
| 402 | |
| 403 void dump(); // Debug printer | |
| 404 void output(FILE *fp); // Write info to output files | |
| 405 }; | |
| 406 | |
| 407 //------------------------------ResourceForm----------------------------------- | |
| 408 class ResourceForm : public Form { | |
| 409 public: | |
| 410 unsigned mask() const { return _resmask; }; | |
| 411 | |
| 412 private: | |
| 413 // Public Data | |
| 414 unsigned _resmask; // Resource Mask (OR of resource specifier bits) | |
| 415 | |
| 416 public: | |
| 417 | |
| 418 // Virtual Methods | |
| 419 virtual ResourceForm *is_resource() const; | |
| 420 | |
| 421 // Public Methods | |
| 422 ResourceForm(unsigned resmask); // Constructor | |
| 423 ~ResourceForm(); // Destructor | |
| 424 | |
| 425 void dump(); // Debug printer | |
| 426 void output(FILE *fp); // Write info to output files | |
| 427 }; | |
| 428 | |
| 429 //------------------------------PipeClassOperandForm----------------------------- | |
| 430 class PipeClassOperandForm : public Form { | |
| 431 private: | |
| 432 | |
| 433 public: | |
| 434 // Public Data | |
| 435 const char *_stage; // Name of Stage | |
| 436 unsigned _iswrite; // Read or Write | |
| 437 unsigned _more_instrs; // Additional Instructions | |
| 438 | |
| 439 // Public Methods | |
| 440 PipeClassOperandForm(const char *stage, unsigned iswrite, unsigned more_instrs) | |
| 441 : _stage(stage) | |
| 442 , _iswrite(iswrite) | |
| 443 , _more_instrs(more_instrs) | |
| 444 {}; | |
| 445 | |
| 446 ~PipeClassOperandForm() {}; // Destructor | |
| 447 | |
| 448 bool isWrite() const { return _iswrite != 0; } | |
| 449 | |
| 450 void dump(); // Debug printer | |
| 451 void output(FILE *fp); // Write info to output files | |
| 452 }; | |
| 453 | |
| 454 //------------------------------PipeClassResourceForm-------------------------- | |
| 455 class PipeClassResourceForm : public Form { | |
| 456 private: | |
| 457 | |
| 458 public: | |
| 459 // Public Data | |
| 460 const char *_resource; // Resource | |
| 461 const char *_stage; // Stage the resource is used in | |
| 462 int _cycles; // Number of cycles the resource is used | |
| 463 | |
| 464 // Public Methods | |
| 465 PipeClassResourceForm(const char *resource, const char *stage, int cycles) | |
| 466 // Constructor | |
| 467 : _resource(resource) | |
| 468 , _stage(stage) | |
| 469 , _cycles(cycles) | |
| 470 {}; | |
| 471 | |
| 472 ~PipeClassResourceForm() {}; // Destructor | |
| 473 | |
| 474 void dump(); // Debug printer | |
| 475 void output(FILE *fp); // Write info to output files | |
| 476 }; | |
| 477 | |
| 478 //------------------------------PipeClassForm---------------------------------- | |
| 479 class PipeClassForm : public Form { | |
| 480 private: | |
| 481 | |
| 482 public: | |
| 483 | |
| 484 // Public Data | |
| 485 const char *_ident; // Name of class | |
| 486 int _num; // Used in name of MachNode subclass | |
| 487 NameList _parameters; // Locally defined names | |
| 488 FormDict _localNames; // Table of operands & their types | |
| 489 FormDict _localUsage; // Table of operand usage | |
| 490 FormList _resUsage; // List of resource usage | |
| 491 NameList _instructs; // List of instructions and machine nodes that use this pipeline class | |
| 492 bool _has_fixed_latency; // Always takes this number of cycles | |
| 493 int _fixed_latency; // Always takes this number of cycles | |
| 494 int _instruction_count; // Number of instructions in first bundle | |
| 495 bool _has_multiple_bundles; // Indicates if 1 or multiple bundles | |
| 496 bool _has_branch_delay_slot; // Has branch delay slot as last instruction | |
| 497 bool _force_serialization; // This node serializes relative to surrounding nodes | |
| 498 bool _may_have_no_code; // This node may generate no code based on register allocation | |
| 499 | |
| 500 // Virtual Methods | |
| 501 virtual PipeClassForm *is_pipeclass() const; | |
| 502 | |
| 503 // Public Methods | |
| 504 PipeClassForm(const char *id, int num); | |
| 505 // Constructor | |
| 506 ~PipeClassForm(); // Destructor | |
| 507 | |
| 508 bool hasFixedLatency() { return _has_fixed_latency; } | |
| 509 int fixedLatency() { return _fixed_latency; } | |
| 510 | |
| 511 void setFixedLatency(int fixed_latency) { _has_fixed_latency = 1; _fixed_latency = fixed_latency; } | |
| 512 | |
| 513 void setInstructionCount(int i) { _instruction_count = i; } | |
| 514 void setMultipleBundles(bool b) { _has_multiple_bundles = b; } | |
| 515 void setBranchDelay(bool s) { _has_branch_delay_slot = s; } | |
| 516 void setForceSerialization(bool s) { _force_serialization = s; } | |
| 517 void setMayHaveNoCode(bool s) { _may_have_no_code = s; } | |
| 518 | |
| 519 int InstructionCount() const { return _instruction_count; } | |
| 520 bool hasMultipleBundles() const { return _has_multiple_bundles; } | |
| 521 bool hasBranchDelay() const { return _has_branch_delay_slot; } | |
| 522 bool forceSerialization() const { return _force_serialization; } | |
| 523 bool mayHaveNoCode() const { return _may_have_no_code; } | |
| 524 | |
| 525 void dump(); // Debug printer | |
| 526 void output(FILE *fp); // Write info to output files | |
| 527 }; | |
| 528 | |
| 529 | |
| 530 //==============================Peephole Optimization========================== | |
| 531 //------------------------------Peephole--------------------------------------- | |
| 532 class Peephole : public Form { | |
| 533 private: | |
| 534 static int _peephole_counter;// Incremented by each peephole rule parsed | |
| 535 int _peephole_number;// Remember my order in architecture description | |
| 536 PeepMatch *_match; // Instruction pattern to match | |
| 537 PeepConstraint *_constraint; // List of additional constraints | |
| 538 PeepReplace *_replace; // Instruction pattern to substitute in | |
| 539 | |
| 540 Peephole *_next; | |
| 541 | |
| 542 public: | |
| 543 // Public Methods | |
| 544 Peephole(); | |
| 545 ~Peephole(); | |
| 546 | |
| 547 // Append a peephole rule with the same root instruction | |
| 548 void append_peephole(Peephole *next_peephole); | |
| 549 | |
| 550 // Store the components of this peephole rule | |
| 551 void add_match(PeepMatch *only_one_match); | |
| 552 void append_constraint(PeepConstraint *next_constraint); | |
| 553 void add_replace(PeepReplace *only_one_replacement); | |
| 554 | |
| 555 // Access the components of this peephole rule | |
| 556 int peephole_number() { return _peephole_number; } | |
| 557 PeepMatch *match() { return _match; } | |
| 558 PeepConstraint *constraints() { return _constraint; } | |
| 559 PeepReplace *replacement() { return _replace; } | |
| 560 Peephole *next() { return _next; } | |
| 561 | |
| 562 void dump(); // Debug printer | |
| 563 void output(FILE *fp); // Write info to output files | |
| 564 }; | |
| 565 | |
| 566 | |
| 567 class PeepMatch : public Form { | |
| 568 private: | |
| 569 char *_rule; | |
| 570 // NameList _depth; // Depth of this instruction | |
| 571 NameList _parent; | |
| 572 NameList _position; | |
| 573 NameList _instrs; // List of instructions in match rule | |
| 574 NameList _input; // input position in parent's instruction | |
| 575 int _max_position; | |
| 576 | |
| 577 public: | |
| 578 // Public Methods | |
| 579 PeepMatch(char *rule); | |
| 580 ~PeepMatch(); | |
| 581 | |
| 582 // Insert info into the match-rule | |
| 583 void add_instruction(int parent, int position, const char *name, int input); | |
| 584 | |
| 585 // Access info about instructions in the peep-match rule | |
| 586 int max_position(); | |
|
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587 const char *instruction_name(int position); |
| 0 | 588 // Iterate through all info on matched instructions |
| 589 void reset(); | |
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590 void next_instruction(int &parent, int &position, const char* &name, int &input); |
| 0 | 591 // 'true' if current position in iteration is a placeholder, not matched. |
| 592 bool is_placeholder(); | |
| 593 | |
| 594 void dump(); | |
| 595 void output(FILE *fp); | |
| 596 }; | |
| 597 | |
| 598 | |
| 599 class PeepConstraint : public Form { | |
| 600 private: | |
| 601 PeepConstraint *_next; // Additional constraints ANDed together | |
| 602 | |
| 603 public: | |
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604 const int _left_inst; |
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605 const char* _left_op; |
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606 const char* _relation; |
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607 const int _right_inst; |
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608 const char* _right_op; |
| 0 | 609 |
| 610 public: | |
| 611 // Public Methods | |
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612 PeepConstraint(int left_inst, char* left_op, char* relation, |
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613 int right_inst, char* right_op); |
| 0 | 614 ~PeepConstraint(); |
| 615 | |
| 616 // Check if constraints use instruction at position | |
|
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617 bool constrains_instruction(int position); |
| 0 | 618 |
| 619 // Add another constraint | |
| 620 void append(PeepConstraint *next_peep_constraint); | |
| 621 // Access the next constraint in the list | |
| 622 PeepConstraint *next(); | |
| 623 | |
| 624 void dump(); | |
| 625 void output(FILE *fp); | |
| 626 }; | |
| 627 | |
| 628 | |
| 629 class PeepReplace : public Form { | |
| 630 private: | |
| 631 char *_rule; | |
| 632 NameList _instruction; | |
| 633 NameList _operand_inst_num; | |
| 634 NameList _operand_op_name; | |
| 635 | |
| 636 public: | |
| 637 | |
| 638 // Public Methods | |
| 639 PeepReplace(char *rule); | |
| 640 ~PeepReplace(); | |
| 641 | |
| 642 // Add contents of peepreplace | |
| 643 void add_instruction(char *root); | |
| 644 void add_operand( int inst_num, char *inst_operand ); | |
| 645 | |
| 646 // Access contents of peepreplace | |
| 647 void reset(); | |
| 648 void next_instruction(const char * &root); | |
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649 void next_operand(int &inst_num, const char * &inst_operand ); |
| 0 | 650 |
| 651 // Utilities | |
| 652 void dump(); | |
| 653 void output(FILE *fp); | |
| 654 }; | |
| 655 | |
| 656 | |
| 657 class PeepChild : public Form { | |
| 658 public: | |
| 659 const int _inst_num; // Number of instruction (-1 if only named) | |
| 660 const char *_inst_op; // Instruction's operand, NULL if number == -1 | |
| 661 const char *_inst_name; // Name of the instruction | |
| 662 | |
| 663 public: | |
| 664 PeepChild(char *inst_name) | |
| 665 : _inst_num(-1), _inst_op(NULL), _inst_name(inst_name) {}; | |
| 666 PeepChild(int inst_num, char *inst_op, char *inst_name) | |
| 667 : _inst_num(inst_num), _inst_op(inst_op), _inst_name(inst_name) {}; | |
| 668 ~PeepChild(); | |
| 669 | |
| 670 bool use_leaf_operand() { return _inst_num != -1; }; | |
| 671 bool generate_an_instruction() { return _inst_num == -1; } | |
| 672 | |
| 673 void dump(); | |
| 674 void output(FILE *fp); | |
| 675 }; | |
| 1972 | 676 |
| 677 #endif // SHARE_VM_ADLC_FORMSOPT_HPP |