1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ART_COMPILER_DEX_COMPILER_IR_H_
18 #define ART_COMPILER_DEX_COMPILER_IR_H_
19 
20 #include <vector>
21 
22 #include "compiler_enums.h"
23 #include "dex/quick/mir_to_lir.h"
24 #include "dex_instruction.h"
25 #include "driver/compiler_driver.h"
26 #include "driver/dex_compilation_unit.h"
27 #include "safe_map.h"
28 #include "utils/scoped_arena_allocator.h"
29 #include "base/timing_logger.h"
30 #include "utils/arena_allocator.h"
31 
32 namespace art {
33 
34 struct ArenaMemBlock;
35 class Backend;
36 struct Memstats;
37 class MIRGraph;
38 class Mir2Lir;
39 
40 struct CompilationUnit {
41   explicit CompilationUnit(ArenaPool* pool);
42   ~CompilationUnit();
43 
44   void StartTimingSplit(const char* label);
45   void NewTimingSplit(const char* label);
46   void EndTiming();
47 
48   /*
49    * Fields needed/generated by common frontend and generally used throughout
50    * the compiler.
51   */
52   CompilerDriver* compiler_driver;
53   ClassLinker* class_linker;           // Linker to resolve fields and methods.
54   const DexFile* dex_file;             // DexFile containing the method being compiled.
55   jobject class_loader;                // compiling method's class loader.
56   uint16_t class_def_idx;              // compiling method's defining class definition index.
57   uint32_t method_idx;                 // compiling method's index into method_ids of DexFile.
58   const DexFile::CodeItem* code_item;  // compiling method's DexFile code_item.
59   uint32_t access_flags;               // compiling method's access flags.
60   InvokeType invoke_type;              // compiling method's invocation type.
61   const char* shorty;                  // compiling method's shorty.
62   uint32_t disable_opt;                // opt_control_vector flags.
63   uint32_t enable_debug;               // debugControlVector flags.
64   bool verbose;
65   const Compiler* compiler;
66   InstructionSet instruction_set;
67   bool target64;
68 
GetInstructionSetFeaturesCompilationUnit69   InstructionSetFeatures GetInstructionSetFeatures() {
70     return compiler_driver->GetInstructionSetFeatures();
71   }
72   // TODO: much of this info available elsewhere.  Go to the original source?
73   uint16_t num_dalvik_registers;        // method->registers_size.
74   const uint16_t* insns;
75   uint16_t num_ins;
76   uint16_t num_outs;
77   uint16_t num_regs;            // Unlike num_dalvik_registers, does not include ins.
78 
79   // If non-empty, apply optimizer/debug flags only to matching methods.
80   std::string compiler_method_match;
81   // Flips sense of compiler_method_match - apply flags if doesn't match.
82   bool compiler_flip_match;
83 
84   // TODO: move memory management to mir_graph, or just switch to using standard containers.
85   ArenaAllocator arena;
86   ArenaStack arena_stack;  // Arenas for ScopedArenaAllocator.
87 
88   std::unique_ptr<MIRGraph> mir_graph;   // MIR container.
89   std::unique_ptr<Backend> cg;           // Target-specific codegen.
90   TimingLogger timings;
91   bool print_pass;                 // Do we want to print a pass or not?
92 };
93 
94 }  // namespace art
95 
96 #endif  // ART_COMPILER_DEX_COMPILER_IR_H_
97