byte-compile-discardbyte-compile-discard is a compiled Lisp function in `
bytecomp.el'. (byte-compile-discard &optional NUM PRESERVE-TOS) Output byte codes to discard the NUM entries at the top of the stack. NUM defaults to 1. If PRESERVE-TOS is non-nil, preserve the top-of-stack value, as if it were popped before discarding the num values, and then pushed back again after discarding.