Re: GLR: modification of $1

[Paul Eggert]

Frank Heckenbach <address@hidden> writes:

> I see that each occurrence of $1 gets expanded to something like
> `yyvsp[YYFILL (0)].yystate.yysemantics.yysval' where `YYFILL' is
> #defined to `yyfill (...)'. I hope gcc will inline the function
> calls in `-O3'

If it doesn't, please let us know.  We can add an 'inline' keyword
or something (suitably ifdeffed).

> but are you sure it doesn't do any redundant work if $1 is used
> several times in an action? (Or is that also considered bad style?)

What sort of redundant work did you have in mind?  There is a bit of
redundant work in some cases, since it has to evaluate "!yynormal &&
yylow1 < *yylow"; but it sounds like you're thinking of work beyond
that.