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| author | bors <bors@rust-lang.org> | 2015-08-22 11:42:36 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2015-08-22 11:42:36 +0000 |
| commit | 5e5b99f47f4d96d2e3fabd05dc5a128a41245187 (patch) | |
| tree | cad67fd3c8f4bb99a5a8c4197254a71e53b882df /src/rustllvm/RustWrapper.cpp | |
| parent | 94ee3b5a54a9f4965b82f5e4eda512966e96ac63 (diff) | |
| parent | 81eab1cab6e96b4430409245b83cc51cd40c2f9f (diff) | |
| download | rust-5e5b99f47f4d96d2e3fabd05dc5a128a41245187.tar.gz rust-5e5b99f47f4d96d2e3fabd05dc5a128a41245187.zip | |
Auto merge of #27892 - nikomatsakis:issue-27583, r=pnkfelix
Issue #27583 was caused by the fact that `LUB('a,'b)` yielded `'static`, even if there existed a region `'tcx:'a+'b`. This PR replaces the old very hacky code for computing how free regions relate to one another with something rather more robust. This solves the issue for #27583, though I think that similar bizarro bugs can no doubt arise in other ways -- the root of the problem is that the region-inference code was written in an era when a LUB always existed, but that hasn't held for some time. To *truly* solve this problem, it needs to be generalized to cope with that reality. But let's leave that battle for another day.
r? @aturon
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