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[Bug soft-fp/16041] New: soft-fp extensions should quiet signaling NaNs


https://sourceware.org/bugzilla/show_bug.cgi?id=16041

            Bug ID: 16041
           Summary: soft-fp extensions should quiet 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

soft-fp FP_EXTEND checks for signaling NaNs and raises the "invalid" exception
for them, but should also convert them to quiet NaNs; instead it leaves them as
signaling (and because the results are raw, the subsequent packing doesn't
alter this).  (This doesn't get detected for powerpc-nofpu by math/basic-test.c
because such conversion tests are generally disabled for powerpc because of
issues with conversions between double and IBM long double.)

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