[Bug testsuite/61415] New: PowerPC test gcc.target/powerpc/tfmode_off.c fails if -mlong-double-64

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61415

            Bug ID: 61415
           Summary: PowerPC test gcc.target/powerpc/tfmode_off.c fails if
                    -mlong-double-64
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org
              Host: powerpc64-linux
            Target: powerpc64-linux,
             Build: powerpc64-linux

The gcc.target/powerpc/tfmode_off.c test fails if long doubles are not 128-bit
(i.e. -mlong-double-64 was used, or the compiler was not configured with the
--with-long-double-128 option).  The test should have an #ifdef test so that it
doesn't fail if long double default to 64-bits.