1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/crankshaft/compilation-phase.h" 6 7 #include "src/crankshaft/hydrogen.h" 8 #include "src/isolate.h" 9 10 namespace v8 { 11 namespace internal { 12 13 CompilationPhase::CompilationPhase(const char* name, CompilationInfo* info) 14 : name_(name), info_(info), zone_(info->isolate()->allocator()) { 15 if (FLAG_hydrogen_stats) { 16 info_zone_start_allocation_size_ = info->zone()->allocation_size(); 17 timer_.Start(); 18 } 19 } 20 21 CompilationPhase::~CompilationPhase() { 22 if (FLAG_hydrogen_stats) { 23 size_t size = zone()->allocation_size(); 24 size += info_->zone()->allocation_size() - info_zone_start_allocation_size_; 25 isolate()->GetHStatistics()->SaveTiming(name_, timer_.Elapsed(), size); 26 } 27 } 28 29 bool CompilationPhase::ShouldProduceTraceOutput() const { 30 // Trace if the appropriate trace flag is set and the phase name's first 31 // character is in the FLAG_trace_phase command line parameter. 32 AllowHandleDereference allow_deref; 33 bool tracing_on = 34 info()->IsStub() 35 ? FLAG_trace_hydrogen_stubs 36 : (FLAG_trace_hydrogen && 37 info()->shared_info()->PassesFilter(FLAG_trace_hydrogen_filter)); 38 return (tracing_on && 39 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != 40 NULL); 41 } 42 43 } // namespace internal 44 } // namespace v8 45
