The current way creates a fallacy that checking for
PolicyAttrs == TAIL_AGNOSTIC is implicitly equivalant to
TAIL_AGNOSTIC_MASK_UNDISTURBED. This works under the assumption that
an unmasked intrinsic has a policy of TAMU. The expression here is
mis-leading and will not be correct when the default policy is not
As this patch-set targets to change the default policy from TAMU to
TAMA, this commit is necessary before changing the default.
This is the 12th commit of a patch-set that aims to change the default policy
for RVV intrinsics from TAMU to TAMA.
Please refer to the cover letter in the 1st commit (D141573) for an