winch: Properly zero extend the CAS result#12994

saulecabrera merged 1 commit intobytecodealliance:mainbytecodealliance/wasmtime:mainfrom

saulecabrera:winch-properly-uextend-cmpxchgsaulecabrera/wasmtime:winch-properly-uextend-cmpxchgCopy head branch name to clipboard