[PATCH PR93334][RFC]Skip output dep if values stored are byte wise the same

[bin.cheng via Gcc-patches]

Hi,
As suggested by PR93334 comments, this patch adds an interface identifying
output dependence which can be skipped in terms of reordering and skip it in
loop distribution.  It also adds a new test case.  Any comment?

Thanks,
bin

0001-Skip-output-dependence-if-values-stored-are-bytewise.patch
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