[Bug rtl-optimization/48696] Horrible bitfield code generation on x86

ptomsich at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Dec 20 13:12:42 GMT 2024


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48696

ptomsich at gcc dot gnu.org changed:

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                 CC|                            |ptomsich at gcc dot gnu.org

--- Comment #20 from ptomsich at gcc dot gnu.org ---
(In reply to Konstantinos Eleftheriou from comment #19)
> The two loads could be optimized, given that the small load is contained in
> the larger one. This could be handled by "reload" if we extend the size of
> the small load to the size of the large one.

Note that we are investigating to add the necessary infrastructure in the
store-forward-avoidance pass to merge the two differently-sized loads.


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