Store offset between fixed typed array base and data start in object

src/arm64/lithium-arm64.cc

Index: src/arm64/lithium-arm64.cc
diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
index f914551066411c49319d8a41899fd98ae2e028f8..e1119c2c678e4941ebb47e344ab5979dd9939a3c 100644
--- a/src/arm64/lithium-arm64.cc
+++ b/src/arm64/lithium-arm64.cc
@@ -2388,10 +2388,7 @@ LInstruction* LChunkBuilder::DoStoreKeyed(HStoreKeyed* instr) {
             !IsDoubleOrFloatElementsKind(instr->elements_kind())) ||
            (instr->value()->representation().IsDouble() &&
             IsDoubleOrFloatElementsKind(instr->elements_kind())));
-    DCHECK((instr->is_fixed_typed_array() &&
-            instr->elements()->representation().IsTagged()) ||
-           (instr->is_external() &&
-            instr->elements()->representation().IsExternal()));
+    DCHECK(instr->elements()->representation().IsExternal());
     return new(zone()) LStoreKeyedExternal(elements, key, val, temp);
 
   } else if (instr->value()->representation().IsDouble()) {