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authorbors <bors@rust-lang.org>2024-03-05 00:13:01 +0000
committerbors <bors@rust-lang.org>2024-03-05 00:13:01 +0000
commit415b1f1fa7ca7f96742cea125f0a0f11b3e8a2f3 (patch)
tree75b3f319cb5976b69fe3940ac8f93e2289e33c86 /compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
parentb74b4b09d118aed77d41387642d4f7b7b6b4c487 (diff)
parentea92548c5696d599c1cda0c5bf1c49ce83b0cd2b (diff)
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Auto merge of #120675 - oli-obk:intrinsics3.0, r=pnkfelix
Add a scheme for moving away from `extern "rust-intrinsic"` entirely

All `rust-intrinsic`s can become free functions now, either with a fallback body, or with a dummy body and an attribute, requiring backends to actually implement the intrinsic.

This PR demonstrates the dummy-body scheme with the `vtable_size` intrinsic.

cc https://github.com/rust-lang/rust/issues/63585

follow-up to #120500

MCP at https://github.com/rust-lang/compiler-team/issues/720
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