http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51057
--- Comment #5 from Steve Kargl <sgk at troutmask dot apl.washington.edu> 2011-12-03 21:22:39 UTC --- On Sat, Dec 03, 2011 at 09:08:26PM +0000, iains at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51057 > > --- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> 2011-12-03 > 21:08:26 UTC --- > (In reply to comment #3) > > On Sat, Dec 03, 2011 at 08:36:43PM +0000, iains at gcc dot gnu.org wrote: > > > This test came into being when libquadmath came into the tree. > > The correct, and only, solution for targets whose long double > > representation is double-double math is to XFAIL the test on those > > targets. > > Elsewhere in the test suite, if a test is meaningless or impossible > to complete in the absence of a capability - the test is made > conditional on that capability, rather than having a long list of XFAILs. Well, there is ! { dg-require-effective-target fortran_large_real } but I believe that that is insufficient in detecting ppc's use of a double-double representation for its long double. I also don't know if there is an equivalent effective-target to provide the required differentiation. > If this is really not possible here, then I'll prepare an XFAIL > patch, but it's not an ideal solution. It's not a long list if you XFAIL this for all ppc systems. You need something along the lines ! { dg-do run { target { ! { ppc*-*-* } } } }