simd_add/sub/mul/neg: document overflow behavior#153675
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RalfJung wants to merge 1 commit intorust-lang:mainfrom
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simd_add/sub/mul/neg: document overflow behavior#153675RalfJung wants to merge 1 commit intorust-lang:mainfrom
RalfJung wants to merge 1 commit intorust-lang:mainfrom
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Some changes occurred to the platform-builtins intrinsics. Make sure the cc @antoyo, @GuillaumeGomez, @bjorn3, @calebzulawski, @programmerjake Some changes occurred to the intrinsics. Make sure the CTFE / Miri interpreter |
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r? @scottmcm rustbot has assigned @scottmcm. Use Why was this reviewer chosen?The reviewer was selected based on:
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simd_neghad an odd comment about overflow not being UB, without saying what the behavior is instead. Replace that by just saying this uses wrapping arithmetic, and add the same for add/sub/mul. div/rem are already documented to cause UB on div-by-zero and min-div-by-minus-one, and shl/shr cause UB on too large shift amounts.