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Issue 1267493006: Remove JSFunctionResultCache. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase Created 5 years, 4 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_PPC 7 #if V8_TARGET_ARCH_PPC
8 8
9 #include "src/code-factory.h" 9 #include "src/code-factory.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
(...skipping 4268 matching lines...) Expand 10 before | Expand all | Expand 10 after
4279 DCHECK(args->length() == 3); 4279 DCHECK(args->length() == 3);
4280 VisitForStackValue(args->at(0)); 4280 VisitForStackValue(args->at(0));
4281 VisitForStackValue(args->at(1)); 4281 VisitForStackValue(args->at(1));
4282 VisitForAccumulatorValue(args->at(2)); 4282 VisitForAccumulatorValue(args->at(2));
4283 __ Pop(r5, r4); 4283 __ Pop(r5, r4);
4284 __ CallStub(&stub); 4284 __ CallStub(&stub);
4285 context()->Plug(r3); 4285 context()->Plug(r3);
4286 } 4286 }
4287 4287
4288 4288
4289 void FullCodeGenerator::EmitGetFromCache(CallRuntime* expr) {
4290 ZoneList<Expression*>* args = expr->arguments();
4291 DCHECK_EQ(2, args->length());
4292 DCHECK_NOT_NULL(args->at(0)->AsLiteral());
4293 int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->value()))->value();
4294
4295 Handle<FixedArray> jsfunction_result_caches(
4296 isolate()->native_context()->jsfunction_result_caches());
4297 if (jsfunction_result_caches->length() <= cache_id) {
4298 __ Abort(kAttemptToUseUndefinedCache);
4299 __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
4300 context()->Plug(r3);
4301 return;
4302 }
4303
4304 VisitForAccumulatorValue(args->at(1));
4305
4306 Register key = r3;
4307 Register cache = r4;
4308 __ LoadP(cache, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
4309 __ LoadP(cache, FieldMemOperand(cache, GlobalObject::kNativeContextOffset));
4310 __ LoadP(cache,
4311 ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
4312 __ LoadP(cache,
4313 FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id)), r0);
4314
4315 Label done, not_found;
4316 __ LoadP(r5, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset));
4317 // r5 now holds finger offset as a smi.
4318 __ addi(r6, cache, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
4319 // r6 now points to the start of fixed array elements.
4320 __ SmiToPtrArrayOffset(r5, r5);
4321 __ LoadPUX(r5, MemOperand(r6, r5));
4322 // r6 now points to the key of the pair.
4323 __ cmp(key, r5);
4324 __ bne(&not_found);
4325
4326 __ LoadP(r3, MemOperand(r6, kPointerSize));
4327 __ b(&done);
4328
4329 __ bind(&not_found);
4330 // Call runtime to perform the lookup.
4331 __ Push(cache, key);
4332 __ CallRuntime(Runtime::kGetFromCacheRT, 2);
4333
4334 __ bind(&done);
4335 context()->Plug(r3);
4336 }
4337
4338
4339 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) { 4289 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
4340 ZoneList<Expression*>* args = expr->arguments(); 4290 ZoneList<Expression*>* args = expr->arguments();
4341 VisitForAccumulatorValue(args->at(0)); 4291 VisitForAccumulatorValue(args->at(0));
4342 4292
4343 Label materialize_true, materialize_false; 4293 Label materialize_true, materialize_false;
4344 Label* if_true = NULL; 4294 Label* if_true = NULL;
4345 Label* if_false = NULL; 4295 Label* if_false = NULL;
4346 Label* fall_through = NULL; 4296 Label* fall_through = NULL;
4347 context()->PrepareTest(&materialize_true, &materialize_false, &if_true, 4297 context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
4348 &if_false, &fall_through); 4298 &if_false, &fall_through);
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5468 return ON_STACK_REPLACEMENT; 5418 return ON_STACK_REPLACEMENT;
5469 } 5419 }
5470 5420
5471 DCHECK(interrupt_address == 5421 DCHECK(interrupt_address ==
5472 isolate->builtins()->OsrAfterStackCheck()->entry()); 5422 isolate->builtins()->OsrAfterStackCheck()->entry());
5473 return OSR_AFTER_STACK_CHECK; 5423 return OSR_AFTER_STACK_CHECK;
5474 } 5424 }
5475 } // namespace internal 5425 } // namespace internal
5476 } // namespace v8 5426 } // namespace v8
5477 #endif // V8_TARGET_ARCH_PPC 5427 #endif // V8_TARGET_ARCH_PPC
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