| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/crankshaft/compilation-phase.h" |
| |
| #include "src/crankshaft/hydrogen.h" |
| #include "src/isolate.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| CompilationPhase::CompilationPhase(const char* name, CompilationInfo* info) |
| : name_(name), info_(info), zone_(info->isolate()->allocator(), ZONE_NAME) { |
| if (FLAG_hydrogen_stats) { |
| info_zone_start_allocation_size_ = info->zone()->allocation_size(); |
| timer_.Start(); |
| } |
| } |
| |
| CompilationPhase::~CompilationPhase() { |
| if (FLAG_hydrogen_stats) { |
| size_t size = zone()->allocation_size(); |
| size += info_->zone()->allocation_size() - info_zone_start_allocation_size_; |
| isolate()->GetHStatistics()->SaveTiming(name_, timer_.Elapsed(), size); |
| } |
| } |
| |
| bool CompilationPhase::ShouldProduceTraceOutput() const { |
| // Trace if the appropriate trace flag is set and the phase name's first |
| // character is in the FLAG_trace_phase command line parameter. |
| AllowHandleDereference allow_deref; |
| bool tracing_on = |
| info()->IsStub() |
| ? FLAG_trace_hydrogen_stubs |
| : (FLAG_trace_hydrogen && |
| info()->shared_info()->PassesFilter(FLAG_trace_hydrogen_filter)); |
| return (tracing_on && |
| base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != |
| NULL); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |