Use ScopedArenaAllocator for building HGraph.
Memory needed to compile the two most expensive methods for
aosp_angler-userdebug boot image:
BatteryStats.dumpCheckinLocked() : 21.1MiB -> 20.2MiB
BatteryStats.dumpLocked(): 42.0MiB -> 40.3MiB
This is because all the memory previously used by the graph
builder is reused by later passes.
And finish the "arena"->"allocator" renaming; make renamed
allocator pointers that are members of classes const when
appropriate (and make a few more members around them const).
Test: m test-art-host-gtest
Test: testrunner.py --host
Bug: 64312607
Change-Id: Ia50aafc80c05941ae5b96984ba4f31ed4c78255e
diff --git a/compiler/optimizing/builder.h b/compiler/optimizing/builder.h
index 6c5985a..5a860f1 100644
--- a/compiler/optimizing/builder.h
+++ b/compiler/optimizing/builder.h
@@ -17,21 +17,17 @@
#ifndef ART_COMPILER_OPTIMIZING_BUILDER_H_
#define ART_COMPILER_OPTIMIZING_BUILDER_H_
-#include "base/arena_containers.h"
#include "base/arena_object.h"
-#include "block_builder.h"
#include "dex_file-inl.h"
#include "dex_file.h"
#include "driver/compiler_driver.h"
#include "driver/dex_compilation_unit.h"
-#include "instruction_builder.h"
#include "nodes.h"
-#include "optimizing_compiler_stats.h"
-#include "ssa_builder.h"
namespace art {
class CodeGenerator;
+class OptimizingCompilerStats;
class HGraphBuilder : public ValueObject {
public:
@@ -46,34 +42,21 @@
// Only for unit testing.
HGraphBuilder(HGraph* graph,
+ const DexCompilationUnit* dex_compilation_unit,
const DexFile::CodeItem& code_item,
VariableSizedHandleScope* handles,
DataType::Type return_type = DataType::Type::kInt32)
: graph_(graph),
- dex_file_(nullptr),
+ dex_file_(dex_compilation_unit->GetDexFile()),
code_item_(code_item),
- dex_compilation_unit_(nullptr),
+ dex_compilation_unit_(dex_compilation_unit),
+ outer_compilation_unit_(nullptr),
compiler_driver_(nullptr),
+ code_generator_(nullptr),
compilation_stats_(nullptr),
- block_builder_(graph, nullptr, code_item),
- ssa_builder_(graph,
- handles->NewHandle<mirror::ClassLoader>(nullptr),
- handles->NewHandle<mirror::DexCache>(nullptr),
- handles),
- instruction_builder_(graph,
- &block_builder_,
- &ssa_builder_,
- /* dex_file */ nullptr,
- code_item_,
- return_type,
- /* dex_compilation_unit */ nullptr,
- /* outer_compilation_unit */ nullptr,
- /* compiler_driver */ nullptr,
- /* code_generator */ nullptr,
- /* interpreter_metadata */ nullptr,
- /* compiler_stats */ nullptr,
- handles->NewHandle<mirror::DexCache>(nullptr),
- handles) {}
+ interpreter_metadata_(nullptr),
+ handles_(handles),
+ return_type_(return_type) {}
GraphAnalysisResult BuildGraph();
@@ -90,13 +73,16 @@
// it can be an inlined method.
const DexCompilationUnit* const dex_compilation_unit_;
+ // The compilation unit of the enclosing method being compiled.
+ const DexCompilationUnit* const outer_compilation_unit_;
+
CompilerDriver* const compiler_driver_;
+ CodeGenerator* const code_generator_;
- OptimizingCompilerStats* compilation_stats_;
-
- HBasicBlockBuilder block_builder_;
- SsaBuilder ssa_builder_;
- HInstructionBuilder instruction_builder_;
+ OptimizingCompilerStats* const compilation_stats_;
+ const uint8_t* const interpreter_metadata_;
+ VariableSizedHandleScope* const handles_;
+ const DataType::Type return_type_;
DISALLOW_COPY_AND_ASSIGN(HGraphBuilder);
};