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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/crankshaft/arm/lithium-codegen-arm.h" | 5 #include "src/crankshaft/arm/lithium-codegen-arm.h" |
| 6 | 6 |
| 7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
| 8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
| 9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
| 10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" | 10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" |
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| 322 __ mov(entry_offset, Operand(entry - base)); | 322 __ mov(entry_offset, Operand(entry - base)); |
| 323 | 323 |
| 324 if (table_entry->needs_frame) { | 324 if (table_entry->needs_frame) { |
| 325 DCHECK(!info()->saves_caller_doubles()); | 325 DCHECK(!info()->saves_caller_doubles()); |
| 326 Comment(";;; call deopt with frame"); | 326 Comment(";;; call deopt with frame"); |
| 327 __ PushCommonFrame(); | 327 __ PushCommonFrame(); |
| 328 __ bl(&needs_frame); | 328 __ bl(&needs_frame); |
| 329 } else { | 329 } else { |
| 330 __ bl(&call_deopt_entry); | 330 __ bl(&call_deopt_entry); |
| 331 } | 331 } |
| 332 info()->LogDeoptCallPosition(masm()->pc_offset(), | 332 LogDeoptCallPosition(masm()->pc_offset(), |
| 333 table_entry->deopt_info.inlining_id); | 333 table_entry->deopt_info.inlining_id); |
| 334 masm()->CheckConstPool(false, false); | 334 masm()->CheckConstPool(false, false); |
| 335 } | 335 } |
| 336 | 336 |
| 337 if (needs_frame.is_linked()) { | 337 if (needs_frame.is_linked()) { |
| 338 __ bind(&needs_frame); | 338 __ bind(&needs_frame); |
| 339 // This variant of deopt can only be used with stubs. Since we don't | 339 // This variant of deopt can only be used with stubs. Since we don't |
| 340 // have a function pointer to install in the stack frame that we're | 340 // have a function pointer to install in the stack frame that we're |
| 341 // building, install a special marker there instead. | 341 // building, install a special marker there instead. |
| 342 __ mov(ip, Operand(Smi::FromInt(StackFrame::STUB))); | 342 __ mov(ip, Operand(Smi::FromInt(StackFrame::STUB))); |
| 343 __ push(ip); | 343 __ push(ip); |
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| 825 | 825 |
| 826 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); | 826 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); |
| 827 | 827 |
| 828 DCHECK(info()->IsStub() || frame_is_built_); | 828 DCHECK(info()->IsStub() || frame_is_built_); |
| 829 // Go through jump table if we need to handle condition, build frame, or | 829 // Go through jump table if we need to handle condition, build frame, or |
| 830 // restore caller doubles. | 830 // restore caller doubles. |
| 831 if (condition == al && frame_is_built_ && | 831 if (condition == al && frame_is_built_ && |
| 832 !info()->saves_caller_doubles()) { | 832 !info()->saves_caller_doubles()) { |
| 833 DeoptComment(deopt_info); | 833 DeoptComment(deopt_info); |
| 834 __ Call(entry, RelocInfo::RUNTIME_ENTRY); | 834 __ Call(entry, RelocInfo::RUNTIME_ENTRY); |
| 835 info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); | 835 LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); |
| 836 } else { | 836 } else { |
| 837 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, | 837 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, |
| 838 !frame_is_built_); | 838 !frame_is_built_); |
| 839 // We often have several deopts to the same entry, reuse the last | 839 // We often have several deopts to the same entry, reuse the last |
| 840 // jump entry if this is the case. | 840 // jump entry if this is the case. |
| 841 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || | 841 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || |
| 842 jump_table_.is_empty() || | 842 jump_table_.is_empty() || |
| 843 !table_entry.IsEquivalentTo(jump_table_.last())) { | 843 !table_entry.IsEquivalentTo(jump_table_.last())) { |
| 844 jump_table_.Add(table_entry, zone()); | 844 jump_table_.Add(table_entry, zone()); |
| 845 } | 845 } |
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| 5534 __ ldr(result, FieldMemOperand(scratch, | 5534 __ ldr(result, FieldMemOperand(scratch, |
| 5535 FixedArray::kHeaderSize - kPointerSize)); | 5535 FixedArray::kHeaderSize - kPointerSize)); |
| 5536 __ bind(deferred->exit()); | 5536 __ bind(deferred->exit()); |
| 5537 __ bind(&done); | 5537 __ bind(&done); |
| 5538 } | 5538 } |
| 5539 | 5539 |
| 5540 #undef __ | 5540 #undef __ |
| 5541 | 5541 |
| 5542 } // namespace internal | 5542 } // namespace internal |
| 5543 } // namespace v8 | 5543 } // namespace v8 |
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