https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124637
--- Comment #12 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> --- (In reply to Roger Sayle from comment #11) > Here's my guess at a patch. Unfortunately, the only targets I can > thoroughly test are little-endian, so although this patch appears to > improve/change code generation on a cross-compiler to powerpc64-linux-gnu, > testing beyond that is minimal. If someone could confirm that this fixes > things on real hardware (or a simulator) that would be great, then the next > step would be to check that it doesn't cause problems on other big-endian > targets. You can use cfarm121 in the GCC Compile Farm which runs Debian ppc64be port. I'm the admin of this machine and can install missing packages if necessary. Get an account here: https://gcc.gnu.org/wiki/CompileFarm
