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| author | bors <bors@rust-lang.org> | 2017-07-31 04:58:10 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2017-07-31 04:58:10 +0000 |
| commit | f6d7873e93e04ae20b24a401fe46f3f35e31b30d (patch) | |
| tree | c8bb30356a5b83bfec362bb82b78ac3bc1aa8771 /src/rustllvm/PassWrapper.cpp | |
| parent | 2789db2720109ade328c87f3502dae7356bd825e (diff) | |
| parent | 2574f31b9b71cd2b37002dbfc9a818c3cc805498 (diff) | |
| download | rust-f6d7873e93e04ae20b24a401fe46f3f35e31b30d.tar.gz rust-f6d7873e93e04ae20b24a401fe46f3f35e31b30d.zip | |
Auto merge of #43546 - nikomatsakis:issue-43132, r=arielb1
save subobligations in the projection cache The projection cache explicitly chose not to "preserve" subobligations for projections, since the fulfillment context ought to have been doing so. But for the trait evaluation scheme that causes problems. This PR reproduces subobligations. This has the potential to slow down compilation, but minimal investigation suggests it does not do so. One hesitation about this PR: I could not find a way to make a standalone test case for #43132 (but admittedly I did not try very hard). Fixes #43132. r? @arielb1
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