Add JIT
Currently disabled by default unless -Xjit is passed in.
The proposed JIT is a method JIT which works by utilizing interpreter
instrumentation to request compilation of hot methods async during
runtime.
JIT options:
-Xjit / -Xnojit
-Xjitcodecachesize:N
-Xjitthreshold:integervalue
The JIT has a shared copy of a compiler driver which is accessed
by worker threads to compile individual methods.
Added JIT code cache and data cache, currently sized at 2 MB
capacity by default. Most apps will only fill a small fraction of
this cache however.
Added support to the compiler for compiling interpreter quickened
byte codes.
Added test target ART_TEST_JIT=TRUE and --jit for run-test.
TODO:
Clean up code cache.
Delete compiled methods after they are added to code cache.
Add more optimizations related to runtime checks e.g. direct pointers
for invokes.
Add method recompilation.
Move instrumentation to DexFile to improve performance and reduce
memory usage.
Bug: 17950037
Change-Id: Ifa5b2684a2d5059ec5a5210733900aafa3c51bca
diff --git a/compiler/dex/mir_graph.h b/compiler/dex/mir_graph.h
index e5abd3b..3dae5b4 100644
--- a/compiler/dex/mir_graph.h
+++ b/compiler/dex/mir_graph.h
@@ -504,6 +504,7 @@
int opt_flags;
InvokeType type;
uint32_t dex_idx;
+ MethodReference method_ref;
uint32_t index; // Method idx for invokes, type idx for FilledNewArray.
uintptr_t direct_code;
uintptr_t direct_method;
@@ -687,7 +688,7 @@
void DoCacheMethodLoweringInfo();
- const MirMethodLoweringInfo& GetMethodLoweringInfo(MIR* mir) {
+ const MirMethodLoweringInfo& GetMethodLoweringInfo(MIR* mir) const {
DCHECK_LT(mir->meta.method_lowering_info, method_lowering_infos_.size());
return method_lowering_infos_[mir->meta.method_lowering_info];
}
@@ -1132,7 +1133,6 @@
std::string GetSSAName(int ssa_reg);
std::string GetSSANameWithConst(int ssa_reg, bool singles_only);
void GetBlockName(BasicBlock* bb, char* name);
- const char* GetShortyFromTargetIdx(int);
const char* GetShortyFromMethodReference(const MethodReference& target_method);
void DumpMIRGraph();
CallInfo* NewMemCallInfo(BasicBlock* bb, MIR* mir, InvokeType type, bool is_range);