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authorbors <bors@rust-lang.org>2021-05-16 15:11:48 +0000
committerbors <bors@rust-lang.org>2021-05-16 15:11:48 +0000
commitf8e1e9238077a829ce1ac0cc1f2c7e0eaa4e679d (patch)
treef42214318eb2191b970f85c0c4408711213bce9b /compiler/rustc_codegen_llvm/src
parent747a5d2a5d6693f5e9426524b0dab34eb1587377 (diff)
parenteaddc8febd02ca0b0cbd0fa08b8b752cb347b725 (diff)
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Auto merge of #84549 - tmiasko:static-initializer, r=varkor
Reachable statics have reachable initializers

Static initializer can read other statics. Initializers are evaluated at
compile time, and so their content could become inlined into another
crate. Ensure that initializers of reachable statics are also reachable.

Previously, when an item incorrectly considered to be unreachable was
reached from another crate an attempt would be made to codegen it. The
attempt could fail with an ICE (in the case MIR wasn't available to do
so) in some circumstances the attempt could also succeed resulting in
a local codegen of non-local items, including static ones.

Fixes #84455.
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