[Bug soft-fp/16036] New: soft-fp __unord* should raise "invalid" for signaling NaNs

["jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16036

            Bug ID: 16036
           Summary: soft-fp __unord* should raise "invalid" for signaling
                    NaNs
           Product: glibc
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: soft-fp
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
                CC: joseph at codesourcery dot com

The soft-fp __unord* functions raise no exceptions.  They should raise
"invalid" for signaling NaNs (__unord* implement C isunordered, which
implements IEEE 754-2008 compareQuietUnordered, which like other
unordered-quiet comparison predicates raises "invalid" for signaling NaNs, just
not for quiet NaNs).

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