On Sep 21, 2011, at 11:30 AM, Eli Friedman wrote: > On Wed, Sep 21, 2011 at 10:39 AM, John McCall <[email protected]> wrote: >> On Sep 20, 2011, at 7:02 PM, Eli Friedman wrote: >>> Attached. Adds AtomicExpr nodes, creates them in Sema, and lowers >>> them in IRGen. >> >> Why is this a new expression node instead of a builtin call with custom >> typechecking? > > The return type of (most of) the builtins depends on the type of the > first argument... can we model that without a new expression node?
Yes. All the GCC atomic builtins are overloaded like this. Just mark the builtin as requiring custom type-checking. There are also several builtins which take l-value operands, if that's important. John. _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
