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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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6423 if (instr->hydrogen()->is_function_entry()) { | 6423 if (instr->hydrogen()->is_function_entry()) { |
6424 // Perform stack overflow check. | 6424 // Perform stack overflow check. |
6425 Label done; | 6425 Label done; |
6426 ExternalReference stack_limit = | 6426 ExternalReference stack_limit = |
6427 ExternalReference::address_of_stack_limit(isolate()); | 6427 ExternalReference::address_of_stack_limit(isolate()); |
6428 __ cmp(esp, Operand::StaticVariable(stack_limit)); | 6428 __ cmp(esp, Operand::StaticVariable(stack_limit)); |
6429 __ j(above_equal, &done, Label::kNear); | 6429 __ j(above_equal, &done, Label::kNear); |
6430 | 6430 |
6431 ASSERT(instr->context()->IsRegister()); | 6431 ASSERT(instr->context()->IsRegister()); |
6432 ASSERT(ToRegister(instr->context()).is(esi)); | 6432 ASSERT(ToRegister(instr->context()).is(esi)); |
6433 StackCheckStub stub; | 6433 CallCode(isolate()->builtins()->StackCheck(), |
6434 CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); | 6434 RelocInfo::CODE_TARGET, |
| 6435 instr); |
6435 EnsureSpaceForLazyDeopt(); | 6436 EnsureSpaceForLazyDeopt(); |
6436 __ bind(&done); | 6437 __ bind(&done); |
6437 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); | 6438 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
6438 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); | 6439 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
6439 } else { | 6440 } else { |
6440 ASSERT(instr->hydrogen()->is_backwards_branch()); | 6441 ASSERT(instr->hydrogen()->is_backwards_branch()); |
6441 // Perform stack overflow check if this goto needs it before jumping. | 6442 // Perform stack overflow check if this goto needs it before jumping. |
6442 DeferredStackCheck* deferred_stack_check = | 6443 DeferredStackCheck* deferred_stack_check = |
6443 new(zone()) DeferredStackCheck(this, instr); | 6444 new(zone()) DeferredStackCheck(this, instr); |
6444 ExternalReference stack_limit = | 6445 ExternalReference stack_limit = |
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6558 FixedArray::kHeaderSize - kPointerSize)); | 6559 FixedArray::kHeaderSize - kPointerSize)); |
6559 __ bind(&done); | 6560 __ bind(&done); |
6560 } | 6561 } |
6561 | 6562 |
6562 | 6563 |
6563 #undef __ | 6564 #undef __ |
6564 | 6565 |
6565 } } // namespace v8::internal | 6566 } } // namespace v8::internal |
6566 | 6567 |
6567 #endif // V8_TARGET_ARCH_IA32 | 6568 #endif // V8_TARGET_ARCH_IA32 |
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