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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 // 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/compiler/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
| 6 | 6 |
| 7 #include "src/compilation-info.h" | 7 #include "src/compilation-info.h" |
| 8 #include "src/compiler/code-generator-impl.h" | 8 #include "src/compiler/code-generator-impl.h" |
| 9 #include "src/compiler/gap-resolver.h" | 9 #include "src/compiler/gap-resolver.h" |
| 10 #include "src/compiler/node-matchers.h" | 10 #include "src/compiler/node-matchers.h" |
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| 2074 // We use the context register as the scratch register, because we do | 2074 // We use the context register as the scratch register, because we do |
| 2075 // not have a context here. | 2075 // not have a context here. |
| 2076 __ PrepareCallCFunction(0, 0, cp); | 2076 __ PrepareCallCFunction(0, 0, cp); |
| 2077 __ CallCFunction( | 2077 __ CallCFunction( |
| 2078 ExternalReference::wasm_call_trap_callback_for_testing(isolate()), | 2078 ExternalReference::wasm_call_trap_callback_for_testing(isolate()), |
| 2079 0); | 2079 0); |
| 2080 __ LeaveFrame(StackFrame::WASM_COMPILED); | 2080 __ LeaveFrame(StackFrame::WASM_COMPILED); |
| 2081 __ Ret(); | 2081 __ Ret(); |
| 2082 } else { | 2082 } else { |
| 2083 gen_->AssembleSourcePosition(instr_); | 2083 gen_->AssembleSourcePosition(instr_); |
| 2084 __ Call(handle(isolate()->builtins()->builtin(trap_id), isolate()), | 2084 __ Call(isolate()->builtins()->builtin_handle(trap_id), |
| 2085 RelocInfo::CODE_TARGET); | 2085 RelocInfo::CODE_TARGET); |
| 2086 ReferenceMap* reference_map = | 2086 ReferenceMap* reference_map = |
| 2087 new (gen_->zone()) ReferenceMap(gen_->zone()); | 2087 new (gen_->zone()) ReferenceMap(gen_->zone()); |
| 2088 gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0, | 2088 gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0, |
| 2089 Safepoint::kNoLazyDeopt); | 2089 Safepoint::kNoLazyDeopt); |
| 2090 if (FLAG_debug_code) { | 2090 if (FLAG_debug_code) { |
| 2091 __ stop(GetBailoutReason(kUnexpectedReturnFromWasmTrap)); | 2091 __ stop(GetBailoutReason(kUnexpectedReturnFromWasmTrap)); |
| 2092 } | 2092 } |
| 2093 } | 2093 } |
| 2094 } | 2094 } |
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| 2212 GetDeoptimizationReason(deoptimization_id); | 2212 GetDeoptimizationReason(deoptimization_id); |
| 2213 Deoptimizer::BailoutType bailout_type = | 2213 Deoptimizer::BailoutType bailout_type = |
| 2214 deoptimization_kind == DeoptimizeKind::kSoft ? Deoptimizer::SOFT | 2214 deoptimization_kind == DeoptimizeKind::kSoft ? Deoptimizer::SOFT |
| 2215 : Deoptimizer::EAGER; | 2215 : Deoptimizer::EAGER; |
| 2216 Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( | 2216 Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( |
| 2217 isolate(), deoptimization_id, bailout_type); | 2217 isolate(), deoptimization_id, bailout_type); |
| 2218 // TODO(turbofan): We should be able to generate better code by sharing the | 2218 // TODO(turbofan): We should be able to generate better code by sharing the |
| 2219 // actual final call site and just bl'ing to it here, similar to what we do | 2219 // actual final call site and just bl'ing to it here, similar to what we do |
| 2220 // in the lithium backend. | 2220 // in the lithium backend. |
| 2221 if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts; | 2221 if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts; |
| 2222 if (isolate()->NeedsSourcePositionsForProfiling()) { | 2222 if (info()->is_source_positions_enabled()) { |
| 2223 __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id); | 2223 __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id); |
| 2224 } | 2224 } |
| 2225 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); | 2225 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); |
| 2226 return kSuccess; | 2226 return kSuccess; |
| 2227 } | 2227 } |
| 2228 | 2228 |
| 2229 void CodeGenerator::FinishFrame(Frame* frame) { | 2229 void CodeGenerator::FinishFrame(Frame* frame) { |
| 2230 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); | 2230 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
| 2231 const RegList double_saves = descriptor->CalleeSavedFPRegisters(); | 2231 const RegList double_saves = descriptor->CalleeSavedFPRegisters(); |
| 2232 | 2232 |
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| 2618 padding_size -= v8::internal::Assembler::kInstrSize; | 2618 padding_size -= v8::internal::Assembler::kInstrSize; |
| 2619 } | 2619 } |
| 2620 } | 2620 } |
| 2621 } | 2621 } |
| 2622 | 2622 |
| 2623 #undef __ | 2623 #undef __ |
| 2624 | 2624 |
| 2625 } // namespace compiler | 2625 } // namespace compiler |
| 2626 } // namespace internal | 2626 } // namespace internal |
| 2627 } // namespace v8 | 2627 } // namespace v8 |
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