https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102808
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
CC| |rguenth at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org
Keywords| |missed-optimization
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Can arm folks please have a look here? Cases like
for (int i = 0; i < n; ++i) \
if (cmp1[i] == cmp2[i]) \
dest[i] += src[indices[i]];
involve undefined integer overflow ops conditionally executed which are now
rewritten to unsigned. On x86 the only fallout in gather/scatter testcases
was with invariants and vect_check_gather_scatter plus/minus handling but
I mitigated that.
Note the testcases only scan for assembler, not for vectorization results
and thus they might simply be too fragile.
