On Sat, Dec 8, 2018 at 11:10 AM Stefan Ring <stefanrin@xxxxxxxxx> wrote: > On Sat, Dec 8, 2018 at 12:09 AM Stefan Ring <stefanrin@xxxxxxxxx> wrote: > It thought, I'd retry the same procedure with gcc 8.2.0 today. This > target header issue is indeed gone -- the build just works. Alas, the > resulting compiler does not :(. > > $ ~/gcc8/bin/g++ -x c++ x.c > during IPA pass: inline > x.c:13:1: internal compiler error: in inline_small_functions, at > ipa-inline.c:1865 > } This is only partially the compiler's fault. I noticed that it worked fine on an arm64 machine chrooted into the armv5 environment and remembered that /proc/cpu/alignment (used to?) default to 0 on Fedora ARM, causing misaligned accesses to produce garbage. It works after activating mis-alignment fixup (setting the value to 2). But this means that gcc version 8 has introduced some unaligned accesses lurking somewhere in its code.
