For the PathScale compiler's initial release on x86, in the unlikely event that the x87 was used at all, I set -mpc64 as the default. We never got a customer co

For the PathScale compiler's initial release on x86, in the unlikely event that the x87 was used at all, I set -mpc64 as the default. We never got a customer complaint about it, despite having many numerically-savvy customers.