https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98868
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ah, so I have polyhedron11 and remember patching:
!CRAY - The following multiply must be done with 64 bits (not 46 bits)
! The algoritm depends on the overflow characteristics of
! a 32 or 64 bit multiply.
jsee_long = jsee;
jsee_long = jsee_long * jmul + jadd
jsee = jsee_long;
see ~gcctest/spectests/c++bench/pb11/rnflow.patch which IIRC else caused
miscompiles at some point due to undefined overflow. Might explain why
I can't reproduce the issue.
