Andrew Kaster 2af591267c LibWasm: Adjust signed integer operations to avoid UB ...

Perform signed integer shifts, addition, subtraction, and rotations
using their corresponding unsigned type. Additionally, mod the right
hand side of shifts and rotations by the bit width of the integer per
the spec. This seems strange, but the spec is clear on the desired
wrapping behavior of arithmetic operations.

2021-07-12 18:42:45 +04:30

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