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Issue 23480013: Turn interrupt and stack check into builtins. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: fix mips Created 7 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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
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281 VisitDeclarations(scope()->declarations()); 281 VisitDeclarations(scope()->declarations());
282 } 282 }
283 283
284 { Comment cmnt(masm_, "[ Stack check"); 284 { Comment cmnt(masm_, "[ Stack check");
285 PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS); 285 PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS);
286 Label ok; 286 Label ok;
287 ExternalReference stack_limit = 287 ExternalReference stack_limit =
288 ExternalReference::address_of_stack_limit(isolate()); 288 ExternalReference::address_of_stack_limit(isolate());
289 __ cmp(esp, Operand::StaticVariable(stack_limit)); 289 __ cmp(esp, Operand::StaticVariable(stack_limit));
290 __ j(above_equal, &ok, Label::kNear); 290 __ j(above_equal, &ok, Label::kNear);
291 StackCheckStub stub; 291 __ call(isolate()->builtins()->StackCheck(), RelocInfo::CODE_TARGET);
292 __ CallStub(&stub);
293 __ bind(&ok); 292 __ bind(&ok);
294 } 293 }
295 294
296 { Comment cmnt(masm_, "[ Body"); 295 { Comment cmnt(masm_, "[ Body");
297 ASSERT(loop_depth() == 0); 296 ASSERT(loop_depth() == 0);
298 VisitStatements(function()->body()); 297 VisitStatements(function()->body());
299 ASSERT(loop_depth() == 0); 298 ASSERT(loop_depth() == 0);
300 } 299 }
301 } 300 }
302 301
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340 339
341 int weight = 1; 340 int weight = 1;
342 if (FLAG_weighted_back_edges) { 341 if (FLAG_weighted_back_edges) {
343 ASSERT(back_edge_target->is_bound()); 342 ASSERT(back_edge_target->is_bound());
344 int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target); 343 int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target);
345 weight = Min(kMaxBackEdgeWeight, 344 weight = Min(kMaxBackEdgeWeight,
346 Max(1, distance / kCodeSizeMultiplier)); 345 Max(1, distance / kCodeSizeMultiplier));
347 } 346 }
348 EmitProfilingCounterDecrement(weight); 347 EmitProfilingCounterDecrement(weight);
349 __ j(positive, &ok, Label::kNear); 348 __ j(positive, &ok, Label::kNear);
350 InterruptStub stub; 349 __ call(isolate()->builtins()->InterruptCheck(), RelocInfo::CODE_TARGET);
351 __ CallStub(&stub);
352 350
353 // Record a mapping of this PC offset to the OSR id. This is used to find 351 // Record a mapping of this PC offset to the OSR id. This is used to find
354 // the AST id from the unoptimized code in order to use it as a key into 352 // the AST id from the unoptimized code in order to use it as a key into
355 // the deoptimization input data found in the optimized code. 353 // the deoptimization input data found in the optimized code.
356 RecordBackEdge(stmt->OsrEntryId()); 354 RecordBackEdge(stmt->OsrEntryId());
357 355
358 EmitProfilingCounterReset(); 356 EmitProfilingCounterReset();
359 357
360 __ bind(&ok); 358 __ bind(&ok);
361 PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS); 359 PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
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388 Max(1, distance / kCodeSizeMultiplier)); 386 Max(1, distance / kCodeSizeMultiplier));
389 } 387 }
390 EmitProfilingCounterDecrement(weight); 388 EmitProfilingCounterDecrement(weight);
391 Label ok; 389 Label ok;
392 __ j(positive, &ok, Label::kNear); 390 __ j(positive, &ok, Label::kNear);
393 __ push(eax); 391 __ push(eax);
394 if (info_->ShouldSelfOptimize() && FLAG_direct_self_opt) { 392 if (info_->ShouldSelfOptimize() && FLAG_direct_self_opt) {
395 __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); 393 __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
396 __ CallRuntime(Runtime::kOptimizeFunctionOnNextCall, 1); 394 __ CallRuntime(Runtime::kOptimizeFunctionOnNextCall, 1);
397 } else { 395 } else {
398 InterruptStub stub; 396 __ call(isolate()->builtins()->InterruptCheck(),
399 __ CallStub(&stub); 397 RelocInfo::CODE_TARGET);
400 } 398 }
401 __ pop(eax); 399 __ pop(eax);
402 EmitProfilingCounterReset(); 400 EmitProfilingCounterReset();
403 __ bind(&ok); 401 __ bind(&ok);
404 } 402 }
405 #ifdef DEBUG 403 #ifdef DEBUG
406 // Add a label for checking the size of the code used for returning. 404 // Add a label for checking the size of the code used for returning.
407 Label check_exit_codesize; 405 Label check_exit_codesize;
408 masm_->bind(&check_exit_codesize); 406 masm_->bind(&check_exit_codesize);
409 #endif 407 #endif
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4890 *stack_depth = 0; 4888 *stack_depth = 0;
4891 *context_length = 0; 4889 *context_length = 0;
4892 return previous_; 4890 return previous_;
4893 } 4891 }
4894 4892
4895 #undef __ 4893 #undef __
4896 4894
4897 } } // namespace v8::internal 4895 } } // namespace v8::internal
4898 4896
4899 #endif // V8_TARGET_ARCH_IA32 4897 #endif // V8_TARGET_ARCH_IA32
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