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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // | 2 // |
3 // Use of this source code is governed by a BSD-style license that can be | 3 // Use of this source code is governed by a BSD-style license that can be |
4 // found in the LICENSE file. | 4 // found in the LICENSE file. |
5 | 5 |
6 #include "src/crankshaft/s390/lithium-codegen-s390.h" | 6 #include "src/crankshaft/s390/lithium-codegen-s390.h" |
7 | 7 |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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305 __ mov(entry_offset, Operand(entry - base)); | 305 __ mov(entry_offset, Operand(entry - base)); |
306 | 306 |
307 if (table_entry->needs_frame) { | 307 if (table_entry->needs_frame) { |
308 DCHECK(!info()->saves_caller_doubles()); | 308 DCHECK(!info()->saves_caller_doubles()); |
309 Comment(";;; call deopt with frame"); | 309 Comment(";;; call deopt with frame"); |
310 __ PushCommonFrame(); | 310 __ PushCommonFrame(); |
311 __ b(r14, &needs_frame); | 311 __ b(r14, &needs_frame); |
312 } else { | 312 } else { |
313 __ b(r14, &call_deopt_entry); | 313 __ b(r14, &call_deopt_entry); |
314 } | 314 } |
315 info()->LogDeoptCallPosition(masm()->pc_offset(), | 315 LogDeoptCallPosition(masm()->pc_offset(), |
316 table_entry->deopt_info.inlining_id); | 316 table_entry->deopt_info.inlining_id); |
317 } | 317 } |
318 | 318 |
319 if (needs_frame.is_linked()) { | 319 if (needs_frame.is_linked()) { |
320 __ bind(&needs_frame); | 320 __ bind(&needs_frame); |
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 |
323 // building, install a special marker there instead. | 323 // building, install a special marker there instead. |
324 DCHECK(info()->IsStub()); | 324 DCHECK(info()->IsStub()); |
325 __ LoadSmiLiteral(ip, Smi::FromInt(StackFrame::STUB)); | 325 __ LoadSmiLiteral(ip, Smi::FromInt(StackFrame::STUB)); |
326 __ push(ip); | 326 __ push(ip); |
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746 __ stop("trap_on_deopt", cond, kDefaultStopCode, cr); | 746 __ stop("trap_on_deopt", cond, kDefaultStopCode, cr); |
747 } | 747 } |
748 | 748 |
749 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); | 749 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); |
750 | 750 |
751 DCHECK(info()->IsStub() || frame_is_built_); | 751 DCHECK(info()->IsStub() || frame_is_built_); |
752 // Go through jump table if we need to handle condition, build frame, or | 752 // Go through jump table if we need to handle condition, build frame, or |
753 // restore caller doubles. | 753 // restore caller doubles. |
754 if (cond == al && frame_is_built_ && !info()->saves_caller_doubles()) { | 754 if (cond == al && frame_is_built_ && !info()->saves_caller_doubles()) { |
755 __ Call(entry, RelocInfo::RUNTIME_ENTRY); | 755 __ Call(entry, RelocInfo::RUNTIME_ENTRY); |
756 info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); | 756 LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); |
757 } else { | 757 } else { |
758 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, | 758 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, |
759 !frame_is_built_); | 759 !frame_is_built_); |
760 // We often have several deopts to the same entry, reuse the last | 760 // We often have several deopts to the same entry, reuse the last |
761 // jump entry if this is the case. | 761 // jump entry if this is the case. |
762 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || | 762 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || |
763 jump_table_.is_empty() || | 763 jump_table_.is_empty() || |
764 !table_entry.IsEquivalentTo(jump_table_.last())) { | 764 !table_entry.IsEquivalentTo(jump_table_.last())) { |
765 jump_table_.Add(table_entry, zone()); | 765 jump_table_.Add(table_entry, zone()); |
766 } | 766 } |
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5666 __ LoadP(result, | 5666 __ LoadP(result, |
5667 FieldMemOperand(scratch, FixedArray::kHeaderSize - kPointerSize)); | 5667 FieldMemOperand(scratch, FixedArray::kHeaderSize - kPointerSize)); |
5668 __ bind(deferred->exit()); | 5668 __ bind(deferred->exit()); |
5669 __ bind(&done); | 5669 __ bind(&done); |
5670 } | 5670 } |
5671 | 5671 |
5672 #undef __ | 5672 #undef __ |
5673 | 5673 |
5674 } // namespace internal | 5674 } // namespace internal |
5675 } // namespace v8 | 5675 } // namespace v8 |
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