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authorbors <bors@rust-lang.org>2019-11-09 23:01:06 +0000
committerbors <bors@rust-lang.org>2019-11-09 23:01:06 +0000
commitc296b2d8309100b27a89707b29f2583aa17e0d3e (patch)
tree9efb1ae454a45112f00e654bb46c12e1ce0f4707 /src/libstd/sys/unix/stack_overflow.rs
parentac162c6abe34cdf965afc0389f6cefa79653c63b (diff)
parentcbe2f6095a3a15318aa54362beae3535a7b049a2 (diff)
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Auto merge of #65694 - wesleywiser:uninhabited_enum_variants_pass, r=oli-obk
[mir-opt] Implement pass to remove branches on uninhabited variants

Based on discussion [here](https://github.com/rust-lang/rust/pull/64890#discussion_r333612125), this is a pass to eliminate dead code that is caused by branching on an enum with uninhabited variants.

r? @oli-obk
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