Invoke typed arraycopy for primitive arrays.

Apps will always call the Object version of arraycopy. When
we can infer the types of the passed arrays, replace the method
being called to be the typed System.arraycopy one.

10% improvement on ExoPlayerBench.

Test: 641-checker-arraycopy
bug: 7103825
Change-Id: I872d7a6e163a4614510ef04ae582eb90ec48b5fa

1 files changed, 2 insertions, 1 deletions

diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index c39aed2c6a..69ef9e178c 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -3915,6 +3915,7 @@ class HInvoke : public HVariableInputSizeInstruction {
   bool IsIntrinsic() const { return intrinsic_ != Intrinsics::kNone; }
 
   ArtMethod* GetResolvedMethod() const { return resolved_method_; }
+  void SetResolvedMethod(ArtMethod* method) { resolved_method_ = method; }
 
   DECLARE_ABSTRACT_INSTRUCTION(Invoke);
 
@@ -3957,7 +3958,7 @@ class HInvoke : public HVariableInputSizeInstruction {
   }
 
   uint32_t number_of_arguments_;
-  ArtMethod* const resolved_method_;
+  ArtMethod* resolved_method_;
   const uint32_t dex_method_index_;
   Intrinsics intrinsic_;