Merge pull request dotnet#4303 from CarolEidt/NoBarrierLclVarAddr

No GC barrier needed for indirection of expressions involving lclVars
DrewScoggins · Apr 13, 2016 · 3ad8f15 · 3ad8f15
2 parents 8ba667b + 39ac496
commit 3ad8f15
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/jit/gcinfo.cpp b/src/jit/gcinfo.cpp
@@ -704,7 +704,7 @@ GCInfo::WriteBarrierForm GCInfo::gcWriteBarrierFormFromTargetAddress(GenTreePtr
             }
         }
     }
-    if (tgtAddr->OperGet() == GT_ADDR && tgtAddr->gtOp.gtOp1->OperGet() == GT_LCL_VAR)
+    if (tgtAddr->IsLocalAddrExpr() != nullptr)
     {
         // No need for a GC barrier when writing to a local variable.
         return GCInfo::WBF_NoBarrier;