On 4/16/12 11:46 AM, Graydon Hoare wrote:
They're already "present" (were from the beginning) but they broke when we shifted from rustboot (hand-rolled code generator) to rustc (LLVM). It turns out that you have to adopt a somewhat pessimistic ABI in all cases if your functions are to be tail-callable. There's a bug open on this[1] that discusses in some more detail, but I think the feature is drifting towards a decision to remove the feature altogether.
I actually disagree with this; I think that we should measure. I'm not sure that the Pascal calling convention is worse than the C calling convention in practice.
In any case, I believe we're doing sibling call optimization already. Patrick _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
