Fix UB on signed overflow in mulh routine #1539
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We want to evaluate whether the product of a and b is zero mod 2^64, but the product might overflow, resulting in UB. If we instead perform the computation in unsigned arithmetic, the overflow behavior is defined. Resolves #1538
jerryz123
approved these changes
Dec 14, 2023
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We want to evaluate whether the product of a and b is zero mod 2^64, but the product might overflow, resulting in UB. If we instead perform the computation in unsigned arithmetic, the overflow behavior is defined.
Resolves #1538