[Bug tree-optimization/118175] Unable to do auto vectorization for matrix multiply due to aliasing of matrix's

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118175

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Huaqi from comment #4)
> 
> Sorry, I am not an expert in the gcc area. Could you please kindly point out
> some documentation explaining the gcc aliasing to me? Thank you.


Yes it is called the c standard. Basically the stores to matc will cause the
loads from matb/mata.