int foo(int a)
{
        switch (a) {
                int u = 1;

        default:
                return a;
        }
}

/*
 * check-name: unused-var
 * check-command: test-linearize -Wno-decl $file
 *
 * check-output-start
foo:
.L0:
        <entry-point>
        ret.32      %arg1


 * check-output-end
 */