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mir-opt: Do not create storage marks in EarlyOtherwiseBranch #141485

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@dianqk dianqk commented May 24, 2025

Fixes #141212.

The first commit add StorageDead by creating new indirect BB that makes CFG more complicated, but I think it's better to just not create storage marks.

r? mir-opt

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rustbot commented May 24, 2025

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels May 24, 2025
@dianqk dianqk changed the title Early otherwise branch loop mir-opt: Do not create storage marks in EarlyOtherwiseBranch May 24, 2025
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EarlyOtherwiseBranch can insert storage markers incorrectly, creating use of a dead local
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