Merged changes to avoid OOM for large wasm modules.

src/compiler/pipeline.cc

 // Copyright 2014 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/compiler/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <memory>
 #include <sstream>
 
@@ skipping 663 matching lines @@
         pipeline_(&data_),
         linkage_(descriptor),
         allow_signalling_nan_(allow_signalling_nan) {}
 
  protected:
   Status PrepareJobImpl() final;
   Status ExecuteJobImpl() final;
   Status FinalizeJobImpl() final;
 
  private:
+  size_t AllocatedMemory() const override;
+
   ZoneStats zone_stats_;
   std::unique_ptr<PipelineStatistics> pipeline_statistics_;
   PipelineData data_;
   PipelineImpl pipeline_;
   Linkage linkage_;
   bool allow_signalling_nan_;
 };
 
 PipelineWasmCompilationJob::Status
 PipelineWasmCompilationJob::PrepareJobImpl() {
@@ skipping 26 matching lines @@
     AddReducer(data, &graph_reducer, &common_reducer);
     AddReducer(data, &graph_reducer, &value_numbering);
     graph_reducer.ReduceGraph();
     pipeline_.RunPrintAndVerify("Optimized Machine", true);
   }
 
   if (!pipeline_.ScheduleAndSelectInstructions(&linkage_, true)) return FAILED;
   return SUCCEEDED;
 }
 
+size_t PipelineWasmCompilationJob::AllocatedMemory() const {
+  return pipeline_.data_->zone_stats()->GetCurrentAllocatedBytes();
+}
+
 PipelineWasmCompilationJob::Status
 PipelineWasmCompilationJob::FinalizeJobImpl() {
   pipeline_.AssembleCode(&linkage_);
   pipeline_.FinalizeCode();
   return SUCCEEDED;
 }
 
 template <typename Phase>
 void PipelineImpl::Run() {
   PipelineRunScope scope(this->data_, Phase::phase_name());
@@ skipping 1333 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8