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| author | bors <bors@rust-lang.org> | 2024-06-25 02:50:37 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-06-25 02:50:37 +0000 |
| commit | fc555cd832ee743ff5410c35de2b0dd59ec4322e (patch) | |
| tree | 421b3f2a5fd13889a9b4a09cb6bd35823be6af1a /compiler/rustc_interface/src | |
| parent | 5b270e1198e911247244b035a6f06ce3af0a4420 (diff) | |
| parent | ec9e35618dd9d4b55282b340aa29fb8c78691aca (diff) | |
| download | rust-fc555cd832ee743ff5410c35de2b0dd59ec4322e.tar.gz rust-fc555cd832ee743ff5410c35de2b0dd59ec4322e.zip | |
Auto merge of #126852 - scottmcm:more-checked-math-tweaks, r=Amanieu
Also get `add nuw` from `uN::checked_add`
When I was doing this for `checked_{sub,shl,shr}`, it was mentioned https://github.com/rust-lang/rust/pull/124114#issuecomment-2066173305 that it'd be worth trying for `checked_add` too.
It makes a particularly-big difference for `x.checked_add(C)`, as doing this means that LLVM removes the intrinsic and does it as a normal `x <= MAX - C` instead.
cc `@DianQK` who had commented about `checked_add` related to https://github.com/rust-lang/hashbrown/issues/509 before
cc https://github.com/llvm/llvm-project/issues/80637 for how LLVM is unlikely to do this itself
Diffstat (limited to 'compiler/rustc_interface/src')
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