https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121436
--- Comment #1 from Antoni <antoyo at gcc dot gnu.org> --- This test passes for me on x86-64. The goal of this patch was to have the correct sign for char so that some x86-64 SIMD intrinsics would work IIRC, so -fsigned-char is not necessary. >From what I understand, this test should only be enabled on targets where char is signed by default.