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 #include "src/objects-inl.h" 10 11 namespace v8 { 12 namespace internal { 13 14 CompilationPhase::CompilationPhase(const char* name, CompilationInfo* info) 15 : name_(name), info_(info), zone_(info->isolate()->allocator(), ZONE_NAME) { 16 if (FLAG_hydrogen_stats) { 17 info_zone_start_allocation_size_ = info->zone()->allocation_size(); 18 timer_.Start(); 19 } 20 } 21 22 CompilationPhase::~CompilationPhase() { 23 if (FLAG_hydrogen_stats) { 24 size_t size = zone()->allocation_size(); 25 size += info_->zone()->allocation_size() - info_zone_start_allocation_size_; 26 isolate()->GetHStatistics()->SaveTiming(name_, timer_.Elapsed(), size); 27 } 28 } 29 30 bool CompilationPhase::ShouldProduceTraceOutput() const { 31 // Trace if the appropriate trace flag is set and the phase name's first 32 // character is in the FLAG_trace_phase command line parameter. 33 AllowHandleDereference allow_deref; 34 bool tracing_on = 35 info()->IsStub() 36 ? FLAG_trace_hydrogen_stubs 37 : (FLAG_trace_hydrogen && 38 info()->shared_info()->PassesFilter(FLAG_trace_hydrogen_filter)); 39 return (tracing_on && 40 base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != 41 NULL); 42 } 43 44 } // namespace internal 45 } // namespace v8 46
