bors e25eb6b223 auto merge of #15256 : erickt/rust/optimizations, r=alexcrichton ...

The bug #11084 causes `option::collect` and `result::collect` about twice as slower as it should because llvm is having some trouble optimizing away the scan closure. This gets rid of it so now those functions perform equivalent to a hand written version.

This also adds an impl of `Default` for `Rc` along the way.

2014-06-30 03:46:25 +00:00

..

mod.rs

librustc: Remove the fallback to int for integers and f64 for

2014-06-29 11:47:58 -07:00

sip.rs

collections: minor cleanup

2014-06-29 12:29:36 -07:00