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| author | Yuki Okushi <jtitor@2k36.org> | 2022-06-15 12:02:03 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-06-15 12:02:03 +0900 |
| commit | 2722c2aa33d947789904694fcde4bb556e278952 (patch) | |
| tree | dbb096fb235cfcfd2dec11c22e48e0ee271ef318 /compiler/rustc_codegen_llvm/src/builder.rs | |
| parent | bb4805118a6274a83e21c78bb96e3cbd9e9dca36 (diff) | |
| parent | 50f6a9ed87e47c7a8ff6aefcde01a33821e80e20 (diff) | |
| download | rust-2722c2aa33d947789904694fcde4bb556e278952.tar.gz rust-2722c2aa33d947789904694fcde4bb556e278952.zip | |
Rollup merge of #98078 - erikdesjardins:uncheckedsize, r=petrochenkov
Use unchecked mul to compute slice sizes This allows LLVM to realize that `slice.len() > 0` iff `slice.len() * size_of::<T>() > 0`, allowing a branch on the latter to be folded into the former when dropping vecs and boxed slices, in some cases. Fixes (partially) #96497
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/builder.rs')
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