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On s390x-linux, with test-case gdb.ada/dyn-bit-offset.exp and gcc 7.5.0 I get: ... (gdb) print spr^M $1 = (discr => 3, array_field => (-5, -6, -7), field => -6, another_field => -6)^M (gdb) FAIL: $exp: print spr print spr.field^M $2 = -6^M (gdb) FAIL: $exp: print spr.field ... On x86_64-linux, with the same compiler version I get: ... (gdb) print spr^M $1 = (discr => 3, array_field => (-5, -6, -7), field => -4, another_field => -4)^M (gdb) XFAIL: $exp: print spr print spr.field^M $2 = -4^M (gdb) PASS: $exp: print spr.field ... In both cases, we're hitting the same compiler problem, but it manifests differently on little and big endian. Make sure the values seen for both little and big endian trigger xfails for both tests. Printing spr.field gives the expected value -4 for x86_64, but that's an accident. Change the actual spr.field value to -5, to make sure that we get the same number of xfails on x86_64 and s390x. Finally, make the xfails conditional on the compiler version. Tested using gcc 7.5.0 on both x86_64-linux and s390x-linux. Approved-By: Andrew Burgess <aburgess@redhat.com> PR testsuite/33042 https://sourceware.org/bugzilla/show_bug.cgi?id=33042