Fortran intrinsic_nearest testcase fails on AIX because the magic single precision floating point value loaded as hex (z'7f7fffff') is not preserved by PowerPC lfs instruction and nextafterf() does not produce the expected result.
Index: intrinsic_nearest.x =================================================================== --- intrinsic_nearest.x (revision 201046) +++ intrinsic_nearest.x (working copy) @@ -2,5 +2,9 @@ # No Inf/NaN support on SPU. return 1 } +if [istarget "powerpc-ibm-aix*"] { + # z'7f7fffff' value not preserved by lfs instruction. + return 1 +} add-ieee-options return 0