[Bug target/79709] Subobtimal code with -mavx and explicit vector

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79709

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
For the BIT_INSERT_EXPR foldings, the question is if we want to handle them one
by one even when there is undefined value in the first one, or if in that case
we should fold only if we eliminate all the undefined values from there and get
a constant VECTOR_CST.