On Tue, Jun 16, 2009 at 2:14 PM, Jerry Quinn<jlqu...@optonline.net> wrote: > Hi, again, > > I am a little unclear on VAR_DECL and DECL_EXPR. The impression I get > from reading the docs is that when a variable is first declared in a > function, a VAR_DECL should be created, possibly with DECL_INITIAL() > set. > > What's less clearly stated is what you use for variable references later > in the code. I think you also use VAR_DECL for this purpose, but I'm > not sure. Could someone clarify? If so, must it be the same tree node > or does it just have to be another VAR_DECL with the same variable name?
The same VAR_DECL. > > There is also DECL_EXPR representing local declarations, which appears > to be related. How do these get used and would it even be used in a > C-like language? Looking at how the gimplifier treats them may answer your question. I don't know off-hand. Richard. > Thanks, > Jerry Quinn > > >
