Fix mod on ia32 without SSE2.

Review URL: https://chromiumcodereview.appspot.com/10128004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/code-stubs-ia32.cc

@@ -1734,6 +1734,9 @@ void BinaryOpStub::GenerateInt32Stub(MacroAssembler* masm) {
             FloatingPointHelper::ARGS_IN_REGISTERS);
         FloatingPointHelper::CheckFloatOperandsAreInt32(masm, &not_int32);
         if (op_ == Token::MOD) {
+          // The operands are now on the FPU stack, but we don't need them.
+          __ fstp(0);
+          __ fstp(0);
           GenerateRegisterArgsPush(masm);
           __ InvokeBuiltin(Builtins::MOD, JUMP_FUNCTION);
         } else {