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authorbors <bors@rust-lang.org>2025-04-06 01:45:33 +0000
committerbors <bors@rust-lang.org>2025-04-06 01:45:33 +0000
commit1de931283df18f3af4922fe9a96adcc8936ac42e (patch)
tree84126385fac2b3c57bd42f802b7b94680d11ca3b /compiler/rustc_driver_impl/src
parentc2110769cd58cd3b0c31f308c8cfeab5e19340fd (diff)
parent5b596cd28b9ca38f8541aff1b05ec26c6207797b (diff)
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Auto merge of #139411 - yotamofek:pr/mir_transform/instsimplify, r=compiler-errors
In `simplify_repeated_aggregate`, don't test first element against itself

r? `@saethlin`
Noticed that in `InstSimplifyContext::simplify_repeated_aggregate`, we're accidentally evaluating the first element's value twice, and then comparing it with itself, instead of just checking whether the rest of the elements are equal to the first one.
This will probably save very few cycles, but since `InstSimplify` is always enabled, this might improve perf by a bit.
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