commit | 284f94f9c0f77ad4ef85323a634cfda29c1a801d | [log] [tgz] |
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author | bors <bors@rust-lang.org> | Thu Apr 25 04:31:56 2024 +0000 |
committer | bors <bors@rust-lang.org> | Thu Apr 25 04:31:56 2024 +0000 |
tree | d0857c02932df2dc5d1d32691edd1ae5a06e0e86 | |
parent | cb3752d20e0f5d24348062211102a08d46fbecff [diff] | |
parent | 976267b5141ef9a72ba3cb9edf01ca3bc53ec81e [diff] |
Auto merge of #121298 - nikic:writable, r=cuviper Set writable and dead_on_unwind attributes for sret arguments Set the `writable` and `dead_on_unwind` attributes for `sret` arguments. This allows call slot optimization to remove more memcpy's. See https://llvm.org/docs/LangRef.html#parameter-attributes for the specification of these attributes. In short, the statement we're making here is that: * The return slot is writable. * The return slot will not be read if the function unwinds. Fixes https://github.com/rust-lang/rust/issues/90595.
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