Use `FEATURE_ARG_SPLIT` to qualify handling of `GT_PUTARG_SPLIT`

diff --git a/src/jit/gentree.h b/src/jit/gentree.h
index 420452c..e6345cd 100644 (file)
--- a/src/jit/gentree.h
+++ b/src/jit/gentree.h
@@ -6030,7 +6030,7 @@ inline regNumber GenTree::GetRegByIndex(int regIndex)
         return AsCall()->GetRegNumByIdx(regIndex);
     }
 
-#if defined(_TARGET_ARMARCH_)
+#if FEATURE_ARG_SPLIT
     if (OperIsPutArgSplit())
     {
         return AsPutArgSplit()->GetRegNumByIdx(regIndex);