Do not do a type check when setting null to an array.

Change-Id: I7387d45aea697d4a3de273335647220a815a992b

1 files changed, 4 insertions, 0 deletions

diff --git a/compiler/optimizing/instruction_simplifier.cc b/compiler/optimizing/instruction_simplifier.cc
index e375f7b1d3..62f90c2f5e 100644
--- a/compiler/optimizing/instruction_simplifier.cc
+++ b/compiler/optimizing/instruction_simplifier.cc
@@ -398,6 +398,10 @@ void InstructionSimplifierVisitor::VisitArraySet(HArraySet* instruction) {
     }
   }
 
+  if (value->IsNullConstant()) {
+    instruction->ClearNeedsTypeCheck();
+  }
+
   if (!value->CanBeNull()) {
     instruction->ClearValueCanBeNull();
   }