vstore_half: Consolidate declarations

Add support for rounding suffix

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 324372
GitOrigin-RevId: 4475aca172424d552bfe9108946f8d405b8673bb
1 file changed