[Bug middle-end/70434] [5/6 Regression] adding an extraneous cast to vector type results in inferior code

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70434

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

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

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This started with my PR63764 fix (r217909).
The thing is, when parsing the vector indexing, we still don't know if it is
going to be used as a lvalue or rvalue (and we need to diagnose such uses).