https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65979
Kazumoto Kojima <kkojima at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |kkojima at gcc dot gnu.org
--- Comment #3 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to John Paul Adrian Glaubitz from comment #1)
> Created attachment 35441 [details]
> Preprocessed source files for gcc-5
ccLfmF03.out
ccrZ8ce7.out
internal compiler error: in make_edges, at tree-cfg.c:923
Looks your build compiler has some wrong code problem. Perhaps
reducing optimization level for the build compiler or changing
the build compiler may help.
cc13zIkw.out
ccY9XfBa.out
ccQG4ZY9.out
ccln30GZ.out
error: unable to find a register to spill in class 'R0_REGS'
against some atomic constructs.
Looks a known issue which unfortunately we have no solution
with the current register allocator.
You can try new register allocator with new -mlra option.
AFAIK, new register allocator (LRA) doesn't cause this error.
I can't see these failures on my cross builds of gcc-5, though.
It could be a problem of the build compiler too.
