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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 // 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_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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398 // have a function pointer to install in the stack frame that we're | 398 // have a function pointer to install in the stack frame that we're |
399 // building, install a special marker there instead. | 399 // building, install a special marker there instead. |
400 DCHECK(info()->IsStub()); | 400 DCHECK(info()->IsStub()); |
401 __ push(Immediate(Smi::FromInt(StackFrame::STUB))); | 401 __ push(Immediate(Smi::FromInt(StackFrame::STUB))); |
402 // Push a PC inside the function so that the deopt code can find where | 402 // Push a PC inside the function so that the deopt code can find where |
403 // the deopt comes from. It doesn't have to be the precise return | 403 // the deopt comes from. It doesn't have to be the precise return |
404 // address of a "calling" LAZY deopt, it only has to be somewhere | 404 // address of a "calling" LAZY deopt, it only has to be somewhere |
405 // inside the code body. | 405 // inside the code body. |
406 Label push_approx_pc; | 406 Label push_approx_pc; |
407 __ call(&push_approx_pc); | 407 __ call(&push_approx_pc); |
| 408 info()->LogDeoptCallPosition(masm()->pc_offset(), |
| 409 table_entry->deopt_info.inlining_id); |
408 __ bind(&push_approx_pc); | 410 __ bind(&push_approx_pc); |
409 // Push the continuation which was stashed were the ebp should | 411 // Push the continuation which was stashed were the ebp should |
410 // be. Replace it with the saved ebp. | 412 // be. Replace it with the saved ebp. |
411 __ push(MemOperand(esp, 3 * kPointerSize)); | 413 __ push(MemOperand(esp, 3 * kPointerSize)); |
412 __ mov(MemOperand(esp, 4 * kPointerSize), ebp); | 414 __ mov(MemOperand(esp, 4 * kPointerSize), ebp); |
413 __ lea(ebp, MemOperand(esp, 4 * kPointerSize)); | 415 __ lea(ebp, MemOperand(esp, 4 * kPointerSize)); |
414 __ ret(0); // Call the continuation without clobbering registers. | 416 __ ret(0); // Call the continuation without clobbering registers. |
415 } | 417 } |
416 } else { | 418 } else { |
417 if (info()->saves_caller_doubles()) RestoreCallerDoubles(); | 419 if (info()->saves_caller_doubles()) RestoreCallerDoubles(); |
418 __ call(entry, RelocInfo::RUNTIME_ENTRY); | 420 __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 421 info()->LogDeoptCallPosition(masm()->pc_offset(), |
| 422 table_entry->deopt_info.inlining_id); |
419 } | 423 } |
420 } | 424 } |
421 return !is_aborted(); | 425 return !is_aborted(); |
422 } | 426 } |
423 | 427 |
424 | 428 |
425 bool LCodeGen::GenerateDeferredCode() { | 429 bool LCodeGen::GenerateDeferredCode() { |
426 DCHECK(is_generating()); | 430 DCHECK(is_generating()); |
427 if (deferred_.length() > 0) { | 431 if (deferred_.length() > 0) { |
428 for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { | 432 for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
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861 __ int3(); | 865 __ int3(); |
862 __ bind(&done); | 866 __ bind(&done); |
863 } | 867 } |
864 | 868 |
865 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); | 869 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); |
866 | 870 |
867 DCHECK(info()->IsStub() || frame_is_built_); | 871 DCHECK(info()->IsStub() || frame_is_built_); |
868 if (cc == no_condition && frame_is_built_) { | 872 if (cc == no_condition && frame_is_built_) { |
869 DeoptComment(deopt_info); | 873 DeoptComment(deopt_info); |
870 __ call(entry, RelocInfo::RUNTIME_ENTRY); | 874 __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 875 info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); |
871 } else { | 876 } else { |
872 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, | 877 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, |
873 !frame_is_built_); | 878 !frame_is_built_); |
874 // We often have several deopts to the same entry, reuse the last | 879 // We often have several deopts to the same entry, reuse the last |
875 // jump entry if this is the case. | 880 // jump entry if this is the case. |
876 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || | 881 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || |
877 jump_table_.is_empty() || | 882 jump_table_.is_empty() || |
878 !table_entry.IsEquivalentTo(jump_table_.last())) { | 883 !table_entry.IsEquivalentTo(jump_table_.last())) { |
879 jump_table_.Add(table_entry, zone()); | 884 jump_table_.Add(table_entry, zone()); |
880 } | 885 } |
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5781 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5786 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5782 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5787 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5783 } | 5788 } |
5784 | 5789 |
5785 | 5790 |
5786 #undef __ | 5791 #undef __ |
5787 | 5792 |
5788 } } // namespace v8::internal | 5793 } } // namespace v8::internal |
5789 | 5794 |
5790 #endif // V8_TARGET_ARCH_IA32 | 5795 #endif // V8_TARGET_ARCH_IA32 |
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