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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 #include "src/arm/lithium-codegen-arm.h" | 7 #include "src/arm/lithium-codegen-arm.h" |
8 #include "src/arm/lithium-gap-resolver-arm.h" | 8 #include "src/arm/lithium-gap-resolver-arm.h" |
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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329 | 329 |
330 Register entry_offset = scratch0(); | 330 Register entry_offset = scratch0(); |
331 | 331 |
332 int length = jump_table_.length(); | 332 int length = jump_table_.length(); |
333 for (int i = 0; i < length; i++) { | 333 for (int i = 0; i < length; i++) { |
334 Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; | 334 Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; |
335 __ bind(&table_entry->label); | 335 __ bind(&table_entry->label); |
336 | 336 |
337 DCHECK_EQ(jump_table_[0].bailout_type, table_entry->bailout_type); | 337 DCHECK_EQ(jump_table_[0].bailout_type, table_entry->bailout_type); |
338 Address entry = table_entry->address; | 338 Address entry = table_entry->address; |
339 DeoptComment(table_entry->reason); | 339 DeoptComment(table_entry->deopt_info); |
340 | 340 |
341 // Second-level deopt table entries are contiguous and small, so instead | 341 // Second-level deopt table entries are contiguous and small, so instead |
342 // of loading the full, absolute address of each one, load an immediate | 342 // of loading the full, absolute address of each one, load an immediate |
343 // offset which will be added to the base address later. | 343 // offset which will be added to the base address later. |
344 __ mov(entry_offset, Operand(entry - base)); | 344 __ mov(entry_offset, Operand(entry - base)); |
345 | 345 |
346 if (table_entry->needs_frame) { | 346 if (table_entry->needs_frame) { |
347 DCHECK(!info()->saves_caller_doubles()); | 347 DCHECK(!info()->saves_caller_doubles()); |
348 if (needs_frame.is_bound()) { | 348 if (needs_frame.is_bound()) { |
349 __ b(&needs_frame); | 349 __ b(&needs_frame); |
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886 if (condition != al) { | 886 if (condition != al) { |
887 condition = ne; | 887 condition = ne; |
888 __ cmp(scratch, Operand::Zero()); | 888 __ cmp(scratch, Operand::Zero()); |
889 } | 889 } |
890 } | 890 } |
891 | 891 |
892 if (info()->ShouldTrapOnDeopt()) { | 892 if (info()->ShouldTrapOnDeopt()) { |
893 __ stop("trap_on_deopt", condition); | 893 __ stop("trap_on_deopt", condition); |
894 } | 894 } |
895 | 895 |
896 Deoptimizer::Reason reason(instr->hydrogen_value()->position().raw(), | 896 Deoptimizer::DeoptInfo deopt_info(instr->hydrogen_value()->position().raw(), |
897 instr->Mnemonic(), deopt_reason); | 897 instr->Mnemonic(), deopt_reason); |
898 DCHECK(info()->IsStub() || frame_is_built_); | 898 DCHECK(info()->IsStub() || frame_is_built_); |
899 // Go through jump table if we need to handle condition, build frame, or | 899 // Go through jump table if we need to handle condition, build frame, or |
900 // restore caller doubles. | 900 // restore caller doubles. |
901 if (condition == al && frame_is_built_ && | 901 if (condition == al && frame_is_built_ && |
902 !info()->saves_caller_doubles()) { | 902 !info()->saves_caller_doubles()) { |
903 DeoptComment(reason); | 903 DeoptComment(deopt_info); |
904 __ Call(entry, RelocInfo::RUNTIME_ENTRY); | 904 __ Call(entry, RelocInfo::RUNTIME_ENTRY); |
905 } else { | 905 } else { |
906 Deoptimizer::JumpTableEntry table_entry(entry, reason, bailout_type, | 906 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, |
907 !frame_is_built_); | 907 !frame_is_built_); |
908 // We often have several deopts to the same entry, reuse the last | 908 // We often have several deopts to the same entry, reuse the last |
909 // jump entry if this is the case. | 909 // jump entry if this is the case. |
910 if (jump_table_.is_empty() || | 910 if (jump_table_.is_empty() || |
911 !table_entry.IsEquivalentTo(jump_table_.last())) { | 911 !table_entry.IsEquivalentTo(jump_table_.last())) { |
912 jump_table_.Add(table_entry, zone()); | 912 jump_table_.Add(table_entry, zone()); |
913 } | 913 } |
914 __ b(condition, &jump_table_.last().label); | 914 __ b(condition, &jump_table_.last().label); |
915 } | 915 } |
916 } | 916 } |
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5976 __ Push(scope_info); | 5976 __ Push(scope_info); |
5977 __ push(ToRegister(instr->function())); | 5977 __ push(ToRegister(instr->function())); |
5978 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5978 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5979 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5979 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5980 } | 5980 } |
5981 | 5981 |
5982 | 5982 |
5983 #undef __ | 5983 #undef __ |
5984 | 5984 |
5985 } } // namespace v8::internal | 5985 } } // namespace v8::internal |
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