libcore: Reexport a couple of widely-used low-level intrinsics to reduce #15569
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code bloat. This didn't make a difference in any compile times that I saw, but it fits what we're doing with `transmute` and seems prudent.
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Does somewhat unsightly things to our docs... maybe we should add a |
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code bloat. This didn't make a difference in any compile times that I saw, but it fits what we're doing with `transmute` and seems prudent. r? @alexcrichton
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Switch to in-tree rustc dependencies with a cfg flag We can use this flag to detect and prevent breakages in rustc CI. (see rust-lang#14846 and rust-lang#15569) ~The `IN_RUSTC_REPOSITORY` is just a placeholder. Is there any existing cfg flag that rustc CI sets?~
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code bloat.
This didn't make a difference in any compile times that I saw, but it
fits what we're doing with
transmuteand seems prudent.r? @alexcrichton