I think that test takes a long time because it is using long double, which on arm64 has 128 bits and is implemented in software. Possible things to do:
* Change the default type (however and wherever it is defined) from "long double" to "double" on arm64, and perhaps other architectures. * Get that particular test to use 64-bit floats. * Get that test to generate some output as it runs so that it does not seem to be inactive.
