Only crosscompile binary op stubs if we compile a snapshot.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 56798d32c1978329060653e49aac8801489de9be..beaf3206a6c1aff2e6fb72eaab8029a0358b73f1 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -2918,8 +2918,12 @@ void CodeStub::GenerateStubsAheadOfTime(Isolate* isolate) {
   RecordWriteStub::GenerateFixedRegStubsAheadOfTime(isolate);
   ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
   CreateAllocationSiteStub::GenerateAheadOfTime(isolate);
-  PlatformFeatureScope sse2(SSE2);
-  BinaryOpStub::GenerateAheadOfTime(isolate);
+  if (Serializer::enabled()) {
+    PlatformFeatureScope sse2(SSE2);
+    BinaryOpStub::GenerateAheadOfTime(isolate);
+  } else {
+    BinaryOpStub::GenerateAheadOfTime(isolate);
+  }
 }