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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/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/hydrogen-osr.h" | 9 #include "src/hydrogen-osr.h" |
10 #include "src/ic/ic.h" | 10 #include "src/ic/ic.h" |
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302 Comment(";;; -------------------- Jump table --------------------"); | 302 Comment(";;; -------------------- Jump table --------------------"); |
303 } | 303 } |
304 Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); | 304 Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); |
305 Label table_start; | 305 Label table_start; |
306 __ bind(&table_start); | 306 __ bind(&table_start); |
307 Label needs_frame; | 307 Label needs_frame; |
308 for (int i = 0; i < jump_table_.length(); i++) { | 308 for (int i = 0; i < jump_table_.length(); i++) { |
309 Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; | 309 Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; |
310 __ bind(&table_entry->label); | 310 __ bind(&table_entry->label); |
311 Address entry = table_entry->address; | 311 Address entry = table_entry->address; |
312 DeoptComment(table_entry->reason); | 312 DeoptComment(table_entry->deopt_info); |
313 __ li(t9, Operand(ExternalReference::ForDeoptEntry(entry))); | 313 __ li(t9, Operand(ExternalReference::ForDeoptEntry(entry))); |
314 if (table_entry->needs_frame) { | 314 if (table_entry->needs_frame) { |
315 DCHECK(!info()->saves_caller_doubles()); | 315 DCHECK(!info()->saves_caller_doubles()); |
316 if (needs_frame.is_bound()) { | 316 if (needs_frame.is_bound()) { |
317 __ Branch(&needs_frame); | 317 __ Branch(&needs_frame); |
318 } else { | 318 } else { |
319 __ bind(&needs_frame); | 319 __ bind(&needs_frame); |
320 __ MultiPush(cp.bit() | fp.bit() | ra.bit()); | 320 __ MultiPush(cp.bit() | fp.bit() | ra.bit()); |
321 // This variant of deopt can only be used with stubs. Since we don't | 321 // This variant of deopt can only be used with stubs. Since we don't |
322 // have a function pointer to install in the stack frame that we're | 322 // have a function pointer to install in the stack frame that we're |
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799 | 799 |
800 if (info()->ShouldTrapOnDeopt()) { | 800 if (info()->ShouldTrapOnDeopt()) { |
801 Label skip; | 801 Label skip; |
802 if (condition != al) { | 802 if (condition != al) { |
803 __ Branch(&skip, NegateCondition(condition), src1, src2); | 803 __ Branch(&skip, NegateCondition(condition), src1, src2); |
804 } | 804 } |
805 __ stop("trap_on_deopt"); | 805 __ stop("trap_on_deopt"); |
806 __ bind(&skip); | 806 __ bind(&skip); |
807 } | 807 } |
808 | 808 |
809 Deoptimizer::Reason reason(instr->hydrogen_value()->position().raw(), | 809 Deoptimizer::DeoptInfo deopt_info(instr->hydrogen_value()->position().raw(), |
810 instr->Mnemonic(), deopt_reason); | 810 instr->Mnemonic(), deopt_reason); |
811 DCHECK(info()->IsStub() || frame_is_built_); | 811 DCHECK(info()->IsStub() || frame_is_built_); |
812 // Go through jump table if we need to handle condition, build frame, or | 812 // Go through jump table if we need to handle condition, build frame, or |
813 // restore caller doubles. | 813 // restore caller doubles. |
814 if (condition == al && frame_is_built_ && | 814 if (condition == al && frame_is_built_ && |
815 !info()->saves_caller_doubles()) { | 815 !info()->saves_caller_doubles()) { |
816 DeoptComment(reason); | 816 DeoptComment(deopt_info); |
817 __ Call(entry, RelocInfo::RUNTIME_ENTRY, condition, src1, src2); | 817 __ Call(entry, RelocInfo::RUNTIME_ENTRY, condition, src1, src2); |
818 } else { | 818 } else { |
819 Deoptimizer::JumpTableEntry table_entry(entry, reason, bailout_type, | 819 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, |
820 !frame_is_built_); | 820 !frame_is_built_); |
821 // We often have several deopts to the same entry, reuse the last | 821 // We often have several deopts to the same entry, reuse the last |
822 // jump entry if this is the case. | 822 // jump entry if this is the case. |
823 if (jump_table_.is_empty() || | 823 if (jump_table_.is_empty() || |
824 !table_entry.IsEquivalentTo(jump_table_.last())) { | 824 !table_entry.IsEquivalentTo(jump_table_.last())) { |
825 jump_table_.Add(table_entry, zone()); | 825 jump_table_.Add(table_entry, zone()); |
826 } | 826 } |
827 __ Branch(&jump_table_.last().label, condition, src1, src2); | 827 __ Branch(&jump_table_.last().label, condition, src1, src2); |
828 } | 828 } |
829 } | 829 } |
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6056 __ li(at, scope_info); | 6056 __ li(at, scope_info); |
6057 __ Push(at, ToRegister(instr->function())); | 6057 __ Push(at, ToRegister(instr->function())); |
6058 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 6058 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
6059 RecordSafepoint(Safepoint::kNoLazyDeopt); | 6059 RecordSafepoint(Safepoint::kNoLazyDeopt); |
6060 } | 6060 } |
6061 | 6061 |
6062 | 6062 |
6063 #undef __ | 6063 #undef __ |
6064 | 6064 |
6065 } } // namespace v8::internal | 6065 } } // namespace v8::internal |
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