that contains both the @code{call} expression and @code{clobber}
expressions that indicate which registers are destroyed. Similarly,
if the call instruction requires some register other than the stack
-pointer that is not explicitly mentioned it its RTL, a @code{use}
+pointer that is not explicitly mentioned in its RTL, a @code{use}
subexpression should mention that register.
Functions that are called are assumed to modify all registers listed in