void BinaryOpStub::GenerateSmiStub(MacroAssembler* masm) {
- Label not_smis, call_runtime;
+ Label right_arg_changed, call_runtime;
+
+ if (op_ == Token::MOD && has_fixed_right_arg_) {
+ // It is guaranteed that the value will fit into a Smi, because if it
+ // didn't, we wouldn't be here, see BinaryOp_Patch.
+ __ Branch(&right_arg_changed,
+ ne,
+ a0,
+ Operand(Smi::FromInt(fixed_right_arg_value())));
+ }
if (result_type_ == BinaryOpIC::UNINITIALIZED ||
result_type_ == BinaryOpIC::SMI) {
// Code falls through if the result is not returned as either a smi or heap
// number.
+ __ bind(&right_arg_changed);
GenerateTypeTransition(masm);
__ bind(&call_runtime);
// to type transition.
} else {
+ if (has_fixed_right_arg_) {
+ __ Move(f16, fixed_right_arg_value());
+ __ BranchF(&transition, NULL, ne, f14, f16);
+ }
+
// We preserved a0 and a1 to be able to call runtime.
// Save the left value on the stack.
__ Push(t1, t0);