[Bug middle-end/71509] Bitfield causes load hit store with larger store than load
luoxhu at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Feb 11 07:24:00 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71509
luoxhu at gcc dot gnu.org changed:
What |Removed |Added
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CC| |linkw at gcc dot gnu.org
--- Comment #13 from luoxhu at gcc dot gnu.org ---
(In reply to Segher Boessenkool from comment #12)
> But it could do just
>
> stw r4,0(r3)
>
> (on LE; and with a rotate first, on BE).
Thanks for the catching, this optimization is not related to load hit store. I
will investigate why store-merging pass failed to merge the 2 half store.
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