https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120156
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |rguenth at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is likely latent then. IIRC some x86 sub-targets enable prefetching
by default.
It's a very odd place for a segfault btw, which might suggest some memory
corruption (also explaining the preprocessed reproducer failure).
I'd try using a watchpoint on the bogus pointer from the bitmap list walk,
it should be initialized from the points-to pass running before PRE and
stay valid from there.