[Bug target/69142] New: missing documentation for s/390 zvector builtin features

[sandra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69142

            Bug ID: 69142
           Summary: missing documentation for s/390 zvector builtin
                    features
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sandra at gcc dot gnu.org
                CC: krebbel at gcc dot gnu.org
  Target Milestone: ---

This patch

https://gcc.gnu.org/ml/gcc-patches/2015-05/msg00935.html

added a new "s390_vector_bool" function attribute and it looks like a whole
bunch of new built-in functions, but no user documentation for these features.
Somebody familiar with this target needs to write the missing documentation.