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Issue 194473005: A64: Rename k<Y>RegSize to k<Y>RegSizeInBits, and k<Y>RegSizeInBytes to k<Y>RegSize. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 9 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 203 matching lines...) Expand 10 before | Expand all | Expand 10 after
214 int reg_size, int reg_count, RegList allowed) { 214 int reg_size, int reg_count, RegList allowed) {
215 RegList list = 0; 215 RegList list = 0;
216 int i = 0; 216 int i = 0;
217 for (unsigned n = 0; (n < kNumberOfRegisters) && (i < reg_count); n++) { 217 for (unsigned n = 0; (n < kNumberOfRegisters) && (i < reg_count); n++) {
218 if (((1UL << n) & allowed) != 0) { 218 if (((1UL << n) & allowed) != 0) {
219 // Only assign allowed registers. 219 // Only assign allowed registers.
220 if (r) { 220 if (r) {
221 r[i] = Register::Create(n, reg_size); 221 r[i] = Register::Create(n, reg_size);
222 } 222 }
223 if (x) { 223 if (x) {
224 x[i] = Register::Create(n, kXRegSize); 224 x[i] = Register::Create(n, kXRegSizeInBits);
225 } 225 }
226 if (w) { 226 if (w) {
227 w[i] = Register::Create(n, kWRegSize); 227 w[i] = Register::Create(n, kWRegSizeInBits);
228 } 228 }
229 list |= (1UL << n); 229 list |= (1UL << n);
230 i++; 230 i++;
231 } 231 }
232 } 232 }
233 // Check that we got enough registers. 233 // Check that we got enough registers.
234 ASSERT(CountSetBits(list, kNumberOfRegisters) == reg_count); 234 ASSERT(CountSetBits(list, kNumberOfRegisters) == reg_count);
235 235
236 return list; 236 return list;
237 } 237 }
238 238
239 239
240 RegList PopulateFPRegisterArray(FPRegister* s, FPRegister* d, FPRegister* v, 240 RegList PopulateFPRegisterArray(FPRegister* s, FPRegister* d, FPRegister* v,
241 int reg_size, int reg_count, RegList allowed) { 241 int reg_size, int reg_count, RegList allowed) {
242 RegList list = 0; 242 RegList list = 0;
243 int i = 0; 243 int i = 0;
244 for (unsigned n = 0; (n < kNumberOfFPRegisters) && (i < reg_count); n++) { 244 for (unsigned n = 0; (n < kNumberOfFPRegisters) && (i < reg_count); n++) {
245 if (((1UL << n) & allowed) != 0) { 245 if (((1UL << n) & allowed) != 0) {
246 // Only assigned allowed registers. 246 // Only assigned allowed registers.
247 if (v) { 247 if (v) {
248 v[i] = FPRegister::Create(n, reg_size); 248 v[i] = FPRegister::Create(n, reg_size);
249 } 249 }
250 if (d) { 250 if (d) {
251 d[i] = FPRegister::Create(n, kDRegSize); 251 d[i] = FPRegister::Create(n, kDRegSizeInBits);
252 } 252 }
253 if (s) { 253 if (s) {
254 s[i] = FPRegister::Create(n, kSRegSize); 254 s[i] = FPRegister::Create(n, kSRegSizeInBits);
255 } 255 }
256 list |= (1UL << n); 256 list |= (1UL << n);
257 i++; 257 i++;
258 } 258 }
259 } 259 }
260 // Check that we got enough registers. 260 // Check that we got enough registers.
261 ASSERT(CountSetBits(list, kNumberOfFPRegisters) == reg_count); 261 ASSERT(CountSetBits(list, kNumberOfFPRegisters) == reg_count);
262 262
263 return list; 263 return list;
264 } 264 }
265 265
266 266
267 void Clobber(MacroAssembler* masm, RegList reg_list, uint64_t const value) { 267 void Clobber(MacroAssembler* masm, RegList reg_list, uint64_t const value) {
268 Register first = NoReg; 268 Register first = NoReg;
269 for (unsigned i = 0; i < kNumberOfRegisters; i++) { 269 for (unsigned i = 0; i < kNumberOfRegisters; i++) {
270 if (reg_list & (1UL << i)) { 270 if (reg_list & (1UL << i)) {
271 Register xn = Register::Create(i, kXRegSize); 271 Register xn = Register::Create(i, kXRegSizeInBits);
272 // We should never write into csp here. 272 // We should never write into csp here.
273 ASSERT(!xn.Is(csp)); 273 ASSERT(!xn.Is(csp));
274 if (!xn.IsZero()) { 274 if (!xn.IsZero()) {
275 if (!first.IsValid()) { 275 if (!first.IsValid()) {
276 // This is the first register we've hit, so construct the literal. 276 // This is the first register we've hit, so construct the literal.
277 __ Mov(xn, value); 277 __ Mov(xn, value);
278 first = xn; 278 first = xn;
279 } else { 279 } else {
280 // We've already loaded the literal, so re-use the value already 280 // We've already loaded the literal, so re-use the value already
281 // loaded into the first register we hit. 281 // loaded into the first register we hit.
282 __ Mov(xn, first); 282 __ Mov(xn, first);
283 } 283 }
284 } 284 }
285 } 285 }
286 } 286 }
287 } 287 }
288 288
289 289
290 void ClobberFP(MacroAssembler* masm, RegList reg_list, double const value) { 290 void ClobberFP(MacroAssembler* masm, RegList reg_list, double const value) {
291 FPRegister first = NoFPReg; 291 FPRegister first = NoFPReg;
292 for (unsigned i = 0; i < kNumberOfFPRegisters; i++) { 292 for (unsigned i = 0; i < kNumberOfFPRegisters; i++) {
293 if (reg_list & (1UL << i)) { 293 if (reg_list & (1UL << i)) {
294 FPRegister dn = FPRegister::Create(i, kDRegSize); 294 FPRegister dn = FPRegister::Create(i, kDRegSizeInBits);
295 if (!first.IsValid()) { 295 if (!first.IsValid()) {
296 // This is the first register we've hit, so construct the literal. 296 // This is the first register we've hit, so construct the literal.
297 __ Fmov(dn, value); 297 __ Fmov(dn, value);
298 first = dn; 298 first = dn;
299 } else { 299 } else {
300 // We've already loaded the literal, so re-use the value already loaded 300 // We've already loaded the literal, so re-use the value already loaded
301 // into the first register we hit. 301 // into the first register we hit.
302 __ Fmov(dn, first); 302 __ Fmov(dn, first);
303 } 303 }
304 } 304 }
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after
347 347
348 __ Push(xzr, dump_base, dump, tmp); 348 __ Push(xzr, dump_base, dump, tmp);
349 349
350 // Load the address where we will dump the state. 350 // Load the address where we will dump the state.
351 __ Mov(dump_base, reinterpret_cast<uint64_t>(&dump_)); 351 __ Mov(dump_base, reinterpret_cast<uint64_t>(&dump_));
352 352
353 // Dump the stack pointer (csp and wcsp). 353 // Dump the stack pointer (csp and wcsp).
354 // The stack pointer cannot be stored directly; it needs to be moved into 354 // The stack pointer cannot be stored directly; it needs to be moved into
355 // another register first. Also, we pushed four X registers, so we need to 355 // another register first. Also, we pushed four X registers, so we need to
356 // compensate here. 356 // compensate here.
357 __ Add(tmp, csp, 4 * kXRegSizeInBytes); 357 __ Add(tmp, csp, 4 * kXRegSize);
358 __ Str(tmp, MemOperand(dump_base, sp_offset)); 358 __ Str(tmp, MemOperand(dump_base, sp_offset));
359 __ Add(tmp_w, wcsp, 4 * kXRegSizeInBytes); 359 __ Add(tmp_w, wcsp, 4 * kXRegSize);
360 __ Str(tmp_w, MemOperand(dump_base, wsp_offset)); 360 __ Str(tmp_w, MemOperand(dump_base, wsp_offset));
361 361
362 // Dump X registers. 362 // Dump X registers.
363 __ Add(dump, dump_base, x_offset); 363 __ Add(dump, dump_base, x_offset);
364 for (unsigned i = 0; i < kNumberOfRegisters; i += 2) { 364 for (unsigned i = 0; i < kNumberOfRegisters; i += 2) {
365 __ Stp(Register::XRegFromCode(i), Register::XRegFromCode(i + 1), 365 __ Stp(Register::XRegFromCode(i), Register::XRegFromCode(i + 1),
366 MemOperand(dump, i * kXRegSizeInBytes)); 366 MemOperand(dump, i * kXRegSize));
367 } 367 }
368 368
369 // Dump W registers. 369 // Dump W registers.
370 __ Add(dump, dump_base, w_offset); 370 __ Add(dump, dump_base, w_offset);
371 for (unsigned i = 0; i < kNumberOfRegisters; i += 2) { 371 for (unsigned i = 0; i < kNumberOfRegisters; i += 2) {
372 __ Stp(Register::WRegFromCode(i), Register::WRegFromCode(i + 1), 372 __ Stp(Register::WRegFromCode(i), Register::WRegFromCode(i + 1),
373 MemOperand(dump, i * kWRegSizeInBytes)); 373 MemOperand(dump, i * kWRegSize));
374 } 374 }
375 375
376 // Dump D registers. 376 // Dump D registers.
377 __ Add(dump, dump_base, d_offset); 377 __ Add(dump, dump_base, d_offset);
378 for (unsigned i = 0; i < kNumberOfFPRegisters; i += 2) { 378 for (unsigned i = 0; i < kNumberOfFPRegisters; i += 2) {
379 __ Stp(FPRegister::DRegFromCode(i), FPRegister::DRegFromCode(i + 1), 379 __ Stp(FPRegister::DRegFromCode(i), FPRegister::DRegFromCode(i + 1),
380 MemOperand(dump, i * kDRegSizeInBytes)); 380 MemOperand(dump, i * kDRegSize));
381 } 381 }
382 382
383 // Dump S registers. 383 // Dump S registers.
384 __ Add(dump, dump_base, s_offset); 384 __ Add(dump, dump_base, s_offset);
385 for (unsigned i = 0; i < kNumberOfFPRegisters; i += 2) { 385 for (unsigned i = 0; i < kNumberOfFPRegisters; i += 2) {
386 __ Stp(FPRegister::SRegFromCode(i), FPRegister::SRegFromCode(i + 1), 386 __ Stp(FPRegister::SRegFromCode(i), FPRegister::SRegFromCode(i + 1),
387 MemOperand(dump, i * kSRegSizeInBytes)); 387 MemOperand(dump, i * kSRegSize));
388 } 388 }
389 389
390 // Dump the flags. 390 // Dump the flags.
391 __ Mrs(tmp, NZCV); 391 __ Mrs(tmp, NZCV);
392 __ Str(tmp, MemOperand(dump_base, flags_offset)); 392 __ Str(tmp, MemOperand(dump_base, flags_offset));
393 393
394 // To dump the values that were in tmp amd dump, we need a new scratch 394 // To dump the values that were in tmp amd dump, we need a new scratch
395 // register. We can use any of the already dumped registers since we can 395 // register. We can use any of the already dumped registers since we can
396 // easily restore them. 396 // easily restore them.
397 Register dump2_base = x10; 397 Register dump2_base = x10;
398 Register dump2 = x11; 398 Register dump2 = x11;
399 ASSERT(!AreAliased(dump_base, dump, tmp, dump2_base, dump2)); 399 ASSERT(!AreAliased(dump_base, dump, tmp, dump2_base, dump2));
400 400
401 // Don't lose the dump_ address. 401 // Don't lose the dump_ address.
402 __ Mov(dump2_base, dump_base); 402 __ Mov(dump2_base, dump_base);
403 403
404 __ Pop(tmp, dump, dump_base, xzr); 404 __ Pop(tmp, dump, dump_base, xzr);
405 405
406 __ Add(dump2, dump2_base, w_offset); 406 __ Add(dump2, dump2_base, w_offset);
407 __ Str(dump_base_w, MemOperand(dump2, dump_base.code() * kWRegSizeInBytes)); 407 __ Str(dump_base_w, MemOperand(dump2, dump_base.code() * kWRegSize));
408 __ Str(dump_w, MemOperand(dump2, dump.code() * kWRegSizeInBytes)); 408 __ Str(dump_w, MemOperand(dump2, dump.code() * kWRegSize));
409 __ Str(tmp_w, MemOperand(dump2, tmp.code() * kWRegSizeInBytes)); 409 __ Str(tmp_w, MemOperand(dump2, tmp.code() * kWRegSize));
410 410
411 __ Add(dump2, dump2_base, x_offset); 411 __ Add(dump2, dump2_base, x_offset);
412 __ Str(dump_base, MemOperand(dump2, dump_base.code() * kXRegSizeInBytes)); 412 __ Str(dump_base, MemOperand(dump2, dump_base.code() * kXRegSize));
413 __ Str(dump, MemOperand(dump2, dump.code() * kXRegSizeInBytes)); 413 __ Str(dump, MemOperand(dump2, dump.code() * kXRegSize));
414 __ Str(tmp, MemOperand(dump2, tmp.code() * kXRegSizeInBytes)); 414 __ Str(tmp, MemOperand(dump2, tmp.code() * kXRegSize));
415 415
416 // Finally, restore dump2_base and dump2. 416 // Finally, restore dump2_base and dump2.
417 __ Ldr(dump2_base, MemOperand(dump2, dump2_base.code() * kXRegSizeInBytes)); 417 __ Ldr(dump2_base, MemOperand(dump2, dump2_base.code() * kXRegSize));
418 __ Ldr(dump2, MemOperand(dump2, dump2.code() * kXRegSizeInBytes)); 418 __ Ldr(dump2, MemOperand(dump2, dump2.code() * kXRegSize));
419 419
420 // Restore the MacroAssembler's scratch registers. 420 // Restore the MacroAssembler's scratch registers.
421 masm->TmpList()->set_list(old_tmp_list); 421 masm->TmpList()->set_list(old_tmp_list);
422 masm->FPTmpList()->set_list(old_fptmp_list); 422 masm->FPTmpList()->set_list(old_fptmp_list);
423 423
424 completed_ = true; 424 completed_ = true;
425 } 425 }
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